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California wildfires caused uptick in clinic visits for atopic dermatitis, itch
During the deadliest wildfire in California’s history in 2018, dermatology clinics 175 miles away at the University of California, San Francisco, experienced an increase in the number of pediatric and adult visits for pruritus and atopic dermatitis associated with air pollution created from the wildfire, according to research presented at the annual meeting of the Society for Investigative Dermatology, held virtually.
Raj Fadadu, a medical student at the University of California, San Francisco, said in his presentation.
Not many studies have examined this potential association, but includes those that have found significant positive associations between exposure to air pollution and pruritus, the development of AD, and exacerbation of AD (J Allergy Clin Immunol. 2014 Nov;134[5]:993-9). Another study found outpatient visits for patients with eczema and dermatitis in Beijing increased as the level of particulate matter, nitrogen dioxide, and sulfur dioxide concentrations increased (Environ Sci Process Impacts. 2019 Jan 23;21[1]:163-73).
Mr. Faduda and colleagues set out to determine whether the number of appointments for and severity of skin disease increased as a result of the 2018 Camp Fire, which started in Paradise, Calif., using measures of air pollution and clinic visits in years where California did not experience a wildfire event as controls. Using the National Oceanic and Atmospheric Administration Hazard Mapping System for fire and smoke, the researchers graphed smoke plume density scores and particulate matter (PM2.5) concentrations in the area. They then calculated the number of UCSF dermatology clinic visits for AD/eczema, and measured severity of skin disease with appointments for itch symptoms, and the number of prescribed medications during that time using ICD-10 codes.
The Camp Fire rapidly spread over a period of 17 days, between Nov. 8 and 25, 2018, during which time, PM2.5 particulate matter concentrations increased 10-fold, while the NOAA smoke plume density score sharply increased. More pediatric and adult patients also seemed to be visiting clinics during this time, compared with several weeks before and several weeks after the fire, prompting a more expanded analysis of this signal, Mr. Fadadu said.
He and his coinvestigators compared data between October 2015 and February 2016 – a period of time where there were no wildfires in California – with data in 2018, when the Camp Fire occurred. They collected data on 3,448 adults and 699 children across 3 years with a total of 5,539 adult appointments for AD, 924 pediatric appointments for AD, 1,319 adult itch appointments, and 294 pediatric itch appointments. Cumulative and exposure lags were used to measure the effect of the wildfire in a Poisson regression analysis.
They found that, during the wildfire, pediatric AD weekly clinic visits were 1.75 times higher (95% confidence interval, 1.21-2.50) and pediatric itch visits were 2.10 times higher (95% CI, 1.44-3.00), compared with weeks where there was no fire. During the wildfire, pediatric AD clinic visits increased by 8% (rate ratio, 1.08; 95% CI, 1.04-1.12) per 10 mcg/m3 increase in PM2.5 concentration.
In adults, clinic visits for AD were 1.28 times higher (95% CI, 1.08-1.51) during the wildfire, compared with nonfire weeks. While there was a positive association between pollution exposure and adult AD, “this effect is less than what we observed” for pediatric AD visits, said Mr. Fadadu. Air pollution was positively associated with the development of itch symptoms in adults and more prescriptions for AD medications, but the results were not statistically significant.
“This may be explained by the fact that 80% of pediatric itch patients carried an AD diagnosis, while in contrast, only half of the adult itch patients also have a diagnosis of AD,” he said.
While there are several possible limitations of the research, including assessment of air pollution exposure, Mr. Fadadu said, “these results can inform how dermatologists counsel patients during future episodes of poor air quality, as well as expand comprehension of the broader health effects of climate change that can significantly impact quality of life.”
This study was funded by the UCSF Summer Explore Fellowship, Marguerite Schoeneman Award, and Joint Medical Program Thesis Grant.
During the deadliest wildfire in California’s history in 2018, dermatology clinics 175 miles away at the University of California, San Francisco, experienced an increase in the number of pediatric and adult visits for pruritus and atopic dermatitis associated with air pollution created from the wildfire, according to research presented at the annual meeting of the Society for Investigative Dermatology, held virtually.
Raj Fadadu, a medical student at the University of California, San Francisco, said in his presentation.
Not many studies have examined this potential association, but includes those that have found significant positive associations between exposure to air pollution and pruritus, the development of AD, and exacerbation of AD (J Allergy Clin Immunol. 2014 Nov;134[5]:993-9). Another study found outpatient visits for patients with eczema and dermatitis in Beijing increased as the level of particulate matter, nitrogen dioxide, and sulfur dioxide concentrations increased (Environ Sci Process Impacts. 2019 Jan 23;21[1]:163-73).
Mr. Faduda and colleagues set out to determine whether the number of appointments for and severity of skin disease increased as a result of the 2018 Camp Fire, which started in Paradise, Calif., using measures of air pollution and clinic visits in years where California did not experience a wildfire event as controls. Using the National Oceanic and Atmospheric Administration Hazard Mapping System for fire and smoke, the researchers graphed smoke plume density scores and particulate matter (PM2.5) concentrations in the area. They then calculated the number of UCSF dermatology clinic visits for AD/eczema, and measured severity of skin disease with appointments for itch symptoms, and the number of prescribed medications during that time using ICD-10 codes.
The Camp Fire rapidly spread over a period of 17 days, between Nov. 8 and 25, 2018, during which time, PM2.5 particulate matter concentrations increased 10-fold, while the NOAA smoke plume density score sharply increased. More pediatric and adult patients also seemed to be visiting clinics during this time, compared with several weeks before and several weeks after the fire, prompting a more expanded analysis of this signal, Mr. Fadadu said.
He and his coinvestigators compared data between October 2015 and February 2016 – a period of time where there were no wildfires in California – with data in 2018, when the Camp Fire occurred. They collected data on 3,448 adults and 699 children across 3 years with a total of 5,539 adult appointments for AD, 924 pediatric appointments for AD, 1,319 adult itch appointments, and 294 pediatric itch appointments. Cumulative and exposure lags were used to measure the effect of the wildfire in a Poisson regression analysis.
They found that, during the wildfire, pediatric AD weekly clinic visits were 1.75 times higher (95% confidence interval, 1.21-2.50) and pediatric itch visits were 2.10 times higher (95% CI, 1.44-3.00), compared with weeks where there was no fire. During the wildfire, pediatric AD clinic visits increased by 8% (rate ratio, 1.08; 95% CI, 1.04-1.12) per 10 mcg/m3 increase in PM2.5 concentration.
In adults, clinic visits for AD were 1.28 times higher (95% CI, 1.08-1.51) during the wildfire, compared with nonfire weeks. While there was a positive association between pollution exposure and adult AD, “this effect is less than what we observed” for pediatric AD visits, said Mr. Fadadu. Air pollution was positively associated with the development of itch symptoms in adults and more prescriptions for AD medications, but the results were not statistically significant.
“This may be explained by the fact that 80% of pediatric itch patients carried an AD diagnosis, while in contrast, only half of the adult itch patients also have a diagnosis of AD,” he said.
While there are several possible limitations of the research, including assessment of air pollution exposure, Mr. Fadadu said, “these results can inform how dermatologists counsel patients during future episodes of poor air quality, as well as expand comprehension of the broader health effects of climate change that can significantly impact quality of life.”
This study was funded by the UCSF Summer Explore Fellowship, Marguerite Schoeneman Award, and Joint Medical Program Thesis Grant.
During the deadliest wildfire in California’s history in 2018, dermatology clinics 175 miles away at the University of California, San Francisco, experienced an increase in the number of pediatric and adult visits for pruritus and atopic dermatitis associated with air pollution created from the wildfire, according to research presented at the annual meeting of the Society for Investigative Dermatology, held virtually.
Raj Fadadu, a medical student at the University of California, San Francisco, said in his presentation.
Not many studies have examined this potential association, but includes those that have found significant positive associations between exposure to air pollution and pruritus, the development of AD, and exacerbation of AD (J Allergy Clin Immunol. 2014 Nov;134[5]:993-9). Another study found outpatient visits for patients with eczema and dermatitis in Beijing increased as the level of particulate matter, nitrogen dioxide, and sulfur dioxide concentrations increased (Environ Sci Process Impacts. 2019 Jan 23;21[1]:163-73).
Mr. Faduda and colleagues set out to determine whether the number of appointments for and severity of skin disease increased as a result of the 2018 Camp Fire, which started in Paradise, Calif., using measures of air pollution and clinic visits in years where California did not experience a wildfire event as controls. Using the National Oceanic and Atmospheric Administration Hazard Mapping System for fire and smoke, the researchers graphed smoke plume density scores and particulate matter (PM2.5) concentrations in the area. They then calculated the number of UCSF dermatology clinic visits for AD/eczema, and measured severity of skin disease with appointments for itch symptoms, and the number of prescribed medications during that time using ICD-10 codes.
The Camp Fire rapidly spread over a period of 17 days, between Nov. 8 and 25, 2018, during which time, PM2.5 particulate matter concentrations increased 10-fold, while the NOAA smoke plume density score sharply increased. More pediatric and adult patients also seemed to be visiting clinics during this time, compared with several weeks before and several weeks after the fire, prompting a more expanded analysis of this signal, Mr. Fadadu said.
He and his coinvestigators compared data between October 2015 and February 2016 – a period of time where there were no wildfires in California – with data in 2018, when the Camp Fire occurred. They collected data on 3,448 adults and 699 children across 3 years with a total of 5,539 adult appointments for AD, 924 pediatric appointments for AD, 1,319 adult itch appointments, and 294 pediatric itch appointments. Cumulative and exposure lags were used to measure the effect of the wildfire in a Poisson regression analysis.
They found that, during the wildfire, pediatric AD weekly clinic visits were 1.75 times higher (95% confidence interval, 1.21-2.50) and pediatric itch visits were 2.10 times higher (95% CI, 1.44-3.00), compared with weeks where there was no fire. During the wildfire, pediatric AD clinic visits increased by 8% (rate ratio, 1.08; 95% CI, 1.04-1.12) per 10 mcg/m3 increase in PM2.5 concentration.
In adults, clinic visits for AD were 1.28 times higher (95% CI, 1.08-1.51) during the wildfire, compared with nonfire weeks. While there was a positive association between pollution exposure and adult AD, “this effect is less than what we observed” for pediatric AD visits, said Mr. Fadadu. Air pollution was positively associated with the development of itch symptoms in adults and more prescriptions for AD medications, but the results were not statistically significant.
“This may be explained by the fact that 80% of pediatric itch patients carried an AD diagnosis, while in contrast, only half of the adult itch patients also have a diagnosis of AD,” he said.
While there are several possible limitations of the research, including assessment of air pollution exposure, Mr. Fadadu said, “these results can inform how dermatologists counsel patients during future episodes of poor air quality, as well as expand comprehension of the broader health effects of climate change that can significantly impact quality of life.”
This study was funded by the UCSF Summer Explore Fellowship, Marguerite Schoeneman Award, and Joint Medical Program Thesis Grant.
FROM SID 2020
Today’s top news highlights: Primary care practices struggle, Americans split on COVID-19 vaccine
Here are the stories our MDedge editors across specialties think you need to know about today:
Patients returning slowly to primary care
Patients are beginning to return for outpatient visits. These visits dropped 60% from prepandemic levels in early April, but have rebounded to about 30% less than baseline, on average, according to data from the Commonwealth Fund, Harvard University, and Phreesia. For primary care in particular, practices are seeing 25% fewer visits than they did in early March. But even with visits rebounding, primary care faces financial challenges. “Primary care practices are in dire straits, and their ability to treat patients is under threat,” said Melinda Abrams, MS, senior vice president of delivery system reform and international innovations for the Commonwealth Fund. “In the long term, an investment in primary care will ensure we have primary care, because we are concerned about its collapse.” READ MORE.
Are the eyes at risk from COVID-19?
Recently, Joseph Fair, PhD, an NBC News contributor, suggested that he may have become ill with COVID-19 because of a lack of eye protection on an airplane. From his hospital bed in New Orleans, he told the network that he had flown on a crowded plane where flight attendants weren’t wearing masks. He wore a mask and gloves, but no eye protection. “My best guess,” he told the interviewer, “was that it came through the eye route.” But experts still aren’t sure if infection through the eyes is possible. “I don’t think we can answer that question with 100% confidence at this time,” said H. Nida Sen, MD, director of the uveitis clinic at the National Eye Institute in Bethesda, Md., and a clinical investigator who is studying the effects of COVID-19 on the eye. But, she says, “I think it is biologically plausible.” READ MORE.
Social distancing shows harm in older adults
As physical distancing continues to be necessary to maintain the health of older adults during the COVID-19 pandemic, experts are raising the alarm about the harms of also being socially distant. Studies of previous quarantine periods as well as preliminary findings during the COVID-19 pandemic demonstrate an inverse relationship between social isolation measures and cognitive functioning in the elderly, according to Myrra Vernooij-Dassen, PhD, of Radboud University in Nigmegen, the Netherlands, and chair of INTERDEM, a pan-European network of dementia researchers. “A striking finding is that lack of social interaction is associated with incident dementia. Conversely, epidemiologic data indicate that a socially integrated lifestyle had a favorable influence on cognitive functioning and could even delay onset of dementia,” she said. READ MORE.
Americans are split on COVID-19 vaccination
As researchers race to produce a safe and effective vaccine against SARS-CoV-2, about half of Americans report they would get the vaccine if it were available. A recent poll, conducted by the AP-NORC Center for Public Affairs Research, found that 31% of respondents weren’t sure if they’d get a vaccine, and 20% said they’d refuse to get one. The poll was conducted May 14-18 and released May 27. Among respondents who said they don’t plan to get vaccinated, 70% said they’re concerned about side effects. Another 42% are worried about getting the coronavirus from the vaccine. READ MORE.
Biologic approved for atopic dermatitis
The Food and Drug Administration approved dupilumab for children aged 6-11 years with moderate to severe atopic dermatitis. This is the first biologic approved for atopic dermatitis in this age group. The new indication is for children whose disease is not adequately controlled with topical prescription therapies. READ MORE.
For more on COVID-19, visit our Resource Center. All of our latest news is available on MDedge.com.
Here are the stories our MDedge editors across specialties think you need to know about today:
Patients returning slowly to primary care
Patients are beginning to return for outpatient visits. These visits dropped 60% from prepandemic levels in early April, but have rebounded to about 30% less than baseline, on average, according to data from the Commonwealth Fund, Harvard University, and Phreesia. For primary care in particular, practices are seeing 25% fewer visits than they did in early March. But even with visits rebounding, primary care faces financial challenges. “Primary care practices are in dire straits, and their ability to treat patients is under threat,” said Melinda Abrams, MS, senior vice president of delivery system reform and international innovations for the Commonwealth Fund. “In the long term, an investment in primary care will ensure we have primary care, because we are concerned about its collapse.” READ MORE.
Are the eyes at risk from COVID-19?
Recently, Joseph Fair, PhD, an NBC News contributor, suggested that he may have become ill with COVID-19 because of a lack of eye protection on an airplane. From his hospital bed in New Orleans, he told the network that he had flown on a crowded plane where flight attendants weren’t wearing masks. He wore a mask and gloves, but no eye protection. “My best guess,” he told the interviewer, “was that it came through the eye route.” But experts still aren’t sure if infection through the eyes is possible. “I don’t think we can answer that question with 100% confidence at this time,” said H. Nida Sen, MD, director of the uveitis clinic at the National Eye Institute in Bethesda, Md., and a clinical investigator who is studying the effects of COVID-19 on the eye. But, she says, “I think it is biologically plausible.” READ MORE.
Social distancing shows harm in older adults
As physical distancing continues to be necessary to maintain the health of older adults during the COVID-19 pandemic, experts are raising the alarm about the harms of also being socially distant. Studies of previous quarantine periods as well as preliminary findings during the COVID-19 pandemic demonstrate an inverse relationship between social isolation measures and cognitive functioning in the elderly, according to Myrra Vernooij-Dassen, PhD, of Radboud University in Nigmegen, the Netherlands, and chair of INTERDEM, a pan-European network of dementia researchers. “A striking finding is that lack of social interaction is associated with incident dementia. Conversely, epidemiologic data indicate that a socially integrated lifestyle had a favorable influence on cognitive functioning and could even delay onset of dementia,” she said. READ MORE.
Americans are split on COVID-19 vaccination
As researchers race to produce a safe and effective vaccine against SARS-CoV-2, about half of Americans report they would get the vaccine if it were available. A recent poll, conducted by the AP-NORC Center for Public Affairs Research, found that 31% of respondents weren’t sure if they’d get a vaccine, and 20% said they’d refuse to get one. The poll was conducted May 14-18 and released May 27. Among respondents who said they don’t plan to get vaccinated, 70% said they’re concerned about side effects. Another 42% are worried about getting the coronavirus from the vaccine. READ MORE.
Biologic approved for atopic dermatitis
The Food and Drug Administration approved dupilumab for children aged 6-11 years with moderate to severe atopic dermatitis. This is the first biologic approved for atopic dermatitis in this age group. The new indication is for children whose disease is not adequately controlled with topical prescription therapies. READ MORE.
For more on COVID-19, visit our Resource Center. All of our latest news is available on MDedge.com.
Here are the stories our MDedge editors across specialties think you need to know about today:
Patients returning slowly to primary care
Patients are beginning to return for outpatient visits. These visits dropped 60% from prepandemic levels in early April, but have rebounded to about 30% less than baseline, on average, according to data from the Commonwealth Fund, Harvard University, and Phreesia. For primary care in particular, practices are seeing 25% fewer visits than they did in early March. But even with visits rebounding, primary care faces financial challenges. “Primary care practices are in dire straits, and their ability to treat patients is under threat,” said Melinda Abrams, MS, senior vice president of delivery system reform and international innovations for the Commonwealth Fund. “In the long term, an investment in primary care will ensure we have primary care, because we are concerned about its collapse.” READ MORE.
Are the eyes at risk from COVID-19?
Recently, Joseph Fair, PhD, an NBC News contributor, suggested that he may have become ill with COVID-19 because of a lack of eye protection on an airplane. From his hospital bed in New Orleans, he told the network that he had flown on a crowded plane where flight attendants weren’t wearing masks. He wore a mask and gloves, but no eye protection. “My best guess,” he told the interviewer, “was that it came through the eye route.” But experts still aren’t sure if infection through the eyes is possible. “I don’t think we can answer that question with 100% confidence at this time,” said H. Nida Sen, MD, director of the uveitis clinic at the National Eye Institute in Bethesda, Md., and a clinical investigator who is studying the effects of COVID-19 on the eye. But, she says, “I think it is biologically plausible.” READ MORE.
Social distancing shows harm in older adults
As physical distancing continues to be necessary to maintain the health of older adults during the COVID-19 pandemic, experts are raising the alarm about the harms of also being socially distant. Studies of previous quarantine periods as well as preliminary findings during the COVID-19 pandemic demonstrate an inverse relationship between social isolation measures and cognitive functioning in the elderly, according to Myrra Vernooij-Dassen, PhD, of Radboud University in Nigmegen, the Netherlands, and chair of INTERDEM, a pan-European network of dementia researchers. “A striking finding is that lack of social interaction is associated with incident dementia. Conversely, epidemiologic data indicate that a socially integrated lifestyle had a favorable influence on cognitive functioning and could even delay onset of dementia,” she said. READ MORE.
Americans are split on COVID-19 vaccination
As researchers race to produce a safe and effective vaccine against SARS-CoV-2, about half of Americans report they would get the vaccine if it were available. A recent poll, conducted by the AP-NORC Center for Public Affairs Research, found that 31% of respondents weren’t sure if they’d get a vaccine, and 20% said they’d refuse to get one. The poll was conducted May 14-18 and released May 27. Among respondents who said they don’t plan to get vaccinated, 70% said they’re concerned about side effects. Another 42% are worried about getting the coronavirus from the vaccine. READ MORE.
Biologic approved for atopic dermatitis
The Food and Drug Administration approved dupilumab for children aged 6-11 years with moderate to severe atopic dermatitis. This is the first biologic approved for atopic dermatitis in this age group. The new indication is for children whose disease is not adequately controlled with topical prescription therapies. READ MORE.
For more on COVID-19, visit our Resource Center. All of our latest news is available on MDedge.com.
Biologic approved for atopic dermatitis in children
The Food and Drug Administration has approved dupilumab for children aged 6-11 years with moderate to severe atopic dermatitis, the manufacturers announced.
The new indication is for children “whose disease is not adequately controlled with topical prescription therapies or when those therapies are not advisable,” Regeneron and Sanofi said in a press release, which points out that this is the first biologic approved for AD in this age group.
For children aged 6-11, the two available dupilumab (Dupixent) doses in prefilled syringes are given based on weight – 300 mg every 4 weeks for children between 15 to 29 kg and 200 mg every 2 weeks for children 30 to 59 kg – following an initial loading dose.
In phase 3 trials, children with severe AD who received dupilumab and topical corticosteroids improved significantly in overall disease severity, skin clearance, and itch, compared with those getting steroids alone. Eczema Area and Severity Index-75, for example, was reached by 75% of patients on either dupilumab dose, compared with 28% and 26% , respectively, for those receiving steroids alone every 4 and every 2 weeks, the statement said.
Over the 16-week treatment period, overall rates of adverse events were 65% for those getting dupilumab every 4 weeks and 61% for every 2 weeks – compared with steroids alone (72% and 75%, respectively), the statement said.
The fully human monoclonal antibody inhibits signaling of the interleukin-4 and interleukin-13 proteins and is already approved as an add-on maintenance treatment in children aged 12 years and older with moderate to severe asthma (eosinophilic phenotype or oral-corticosteroid dependent) and in adults with inadequately controlled chronic rhinosinusitis with nasal polyposis, according to the prescribing information.
The Food and Drug Administration has approved dupilumab for children aged 6-11 years with moderate to severe atopic dermatitis, the manufacturers announced.
The new indication is for children “whose disease is not adequately controlled with topical prescription therapies or when those therapies are not advisable,” Regeneron and Sanofi said in a press release, which points out that this is the first biologic approved for AD in this age group.
For children aged 6-11, the two available dupilumab (Dupixent) doses in prefilled syringes are given based on weight – 300 mg every 4 weeks for children between 15 to 29 kg and 200 mg every 2 weeks for children 30 to 59 kg – following an initial loading dose.
In phase 3 trials, children with severe AD who received dupilumab and topical corticosteroids improved significantly in overall disease severity, skin clearance, and itch, compared with those getting steroids alone. Eczema Area and Severity Index-75, for example, was reached by 75% of patients on either dupilumab dose, compared with 28% and 26% , respectively, for those receiving steroids alone every 4 and every 2 weeks, the statement said.
Over the 16-week treatment period, overall rates of adverse events were 65% for those getting dupilumab every 4 weeks and 61% for every 2 weeks – compared with steroids alone (72% and 75%, respectively), the statement said.
The fully human monoclonal antibody inhibits signaling of the interleukin-4 and interleukin-13 proteins and is already approved as an add-on maintenance treatment in children aged 12 years and older with moderate to severe asthma (eosinophilic phenotype or oral-corticosteroid dependent) and in adults with inadequately controlled chronic rhinosinusitis with nasal polyposis, according to the prescribing information.
The Food and Drug Administration has approved dupilumab for children aged 6-11 years with moderate to severe atopic dermatitis, the manufacturers announced.
The new indication is for children “whose disease is not adequately controlled with topical prescription therapies or when those therapies are not advisable,” Regeneron and Sanofi said in a press release, which points out that this is the first biologic approved for AD in this age group.
For children aged 6-11, the two available dupilumab (Dupixent) doses in prefilled syringes are given based on weight – 300 mg every 4 weeks for children between 15 to 29 kg and 200 mg every 2 weeks for children 30 to 59 kg – following an initial loading dose.
In phase 3 trials, children with severe AD who received dupilumab and topical corticosteroids improved significantly in overall disease severity, skin clearance, and itch, compared with those getting steroids alone. Eczema Area and Severity Index-75, for example, was reached by 75% of patients on either dupilumab dose, compared with 28% and 26% , respectively, for those receiving steroids alone every 4 and every 2 weeks, the statement said.
Over the 16-week treatment period, overall rates of adverse events were 65% for those getting dupilumab every 4 weeks and 61% for every 2 weeks – compared with steroids alone (72% and 75%, respectively), the statement said.
The fully human monoclonal antibody inhibits signaling of the interleukin-4 and interleukin-13 proteins and is already approved as an add-on maintenance treatment in children aged 12 years and older with moderate to severe asthma (eosinophilic phenotype or oral-corticosteroid dependent) and in adults with inadequately controlled chronic rhinosinusitis with nasal polyposis, according to the prescribing information.
Multiple atopic dermatitis therapies completed or close to completing phase 3 studies
Major , Jonathan I. Silverberg, MD, PhD, said during a virtual meeting held by the George Washington University department of dermatology. The virtual meeting included presentations that had been slated for the annual meeting of the American Academy of Dermatology, which was canceled due to the COVID-19 pandemic.
“In the next 2-3 years, we may have nine new treatments approved for atopic dermatitis,” said Dr. Silverberg, director of clinical research and contact dermatitis at the University.
All nine medications he discussed are either in ongoing pivotal phase 3 randomized controlled trials or have completed their phase 3 developmental programs. “This is not theoretical; these are things you’re going to be using in your toolbox imminently,” he stressed.
Oral JAK inhibitors
The Janus kinase (JAK) pathway is the intracellular signaling mediator that interacts with extracellular inflammatory cytokines, including interleukin-4, -13, and -31, which are familiar to dermatologists because they’re targeted by potent biologic monoclonal antibody therapies. For example, IL-4 goes through JAK1 and 3, while IL-31 signals through JAK1 and 2.
“You really need to know the key JAK and STAT pathways involved in atopic dermatitis because it will help you determine the selectivity of the agents you’re going to be using,” the dermatologist advised.
Three oral, once-daily JAK inhibitors – abrocitinib, upadacitinib, and baricitinib – are in an advanced stage of development.
“Upadacitinib and abrocitinib may be the two most potent options coming to market soon for us to be thinking about,” Dr. Silverberg said.
Abrocitinib: Three positive phase 3 studies featuring this selective JAK1 inhibitor have been completed in adults with moderate to severe atopic dermatitis (AD). The most recent, JADE COMPARE, featured a head-to-head randomized comparison of abrocitinib and the injectable IL-4/IL-13 inhibitor dupilumab. The results of this 837-patient study haven’t yet been formally presented at a conference because of the COVID-19 pandemic. However, Pfizer recently announced that abrocitinib at 200 mg/day achieved significantly greater improvements than dupilumab (Dupixent) in the coprimary endpoints of skin clearance as reflected in an Investigator’s Global Assessment (IGA) score of 0 or 1 (that is, clear or almost clear) and disease extent based upon 75% reduction from baseline in Eczema Area and Severity Index (EASI 75) at 12 weeks. The same was true at 16 weeks.
Also, a significantly larger proportion of abrocitinib-treated patients achieved at least a 4-point reduction in itch severity as measured using the Peak Pruritus Numerical Rating Scale at week 2. The company plans to file for regulatory approval later this year.
The JADE COMPARE data are exciting because of a pressing unmet need for treatment options that are even more powerful than dupilumab, Dr. Silverberg said.
Upadacitinib: This is selective JAK1 inhibitor is not as far along in the developmental pipeline as abrocitinib, but the efficacy appears to be comparable. In a phase 2 study of 126 adults with moderate to severe AD, upadacitinib at the top dose of 30 mg/day achieved efficacy results Dr. Silverberg deemed “quite extraordinary,” with a rate of IGA score of 0 or 1 of 50% at 16 weeks and an EASI 75 response rate of 69%. Those findings numerically eclipsed results seen in an earlier phase 3 pivotal trial for dupilumab, in which the IGA 0/1 rate was 37% and EASI 75 was 48%, albeit with the caveat that cross-trial comparisons must be taken with a large grain of salt.
Baricitinib: Multiple phase 3 studies of this JAK 1/2 inhibitor have reported positive results. At the top dose of 4 mg/day, baricitinib appears to be less effective than dupilumab in its earlier pivotal trials.
“This may be a good oral option for our patients. It could be similar to the Otezla [apremilast] story in psoriasis: It’s perhaps not as effective as a lot of the biologics, but patients often prefer an oral option,” Dr. Silverberg said.
Of note, in one large, placebo-controlled, phase 3 study of baricitinib on top of background low- or medium-potency topical steroids, the IGA 0/1 rate at 16 weeks with placebo plus topical steroids was a modest 14.7%, which underscores that this long-time workhorse topical therapy is objectively less effective than most physicians think. In contrast, the IGA 0/1 rate with baricitinib at 4 mg/day plus topical steroids was a more respectable 30.6%.
All three oral JAK inhibitors have rapid onset of efficacy, a key advantage over the biologic agents.
“The issue you have to keep in mind is safety. The safety in the atopic dermatitis population was overall quite good for all three drugs. However, safety concerns have come up with JAK inhibitors in rheumatoid arthritis. I think that’s the part we watch the most in this. The efficacy has become clear. Now the question is where does the safety take us,” he said.
Novel injectable biologics
Nemolizumab: This humanized monoclonal antibody inhibits IL-31 receptor alpha. Mounting evidence implicates IL-31 as both a proinflammatory and immunomodulatory cytokine linking the immune and neural systems.
Early on, most researchers pigeonholed IL-31 as being a key player only in the itch factor in AD. Not so. Indeed, Dr. Silverberg was the lead investigator in a recent phase 2b study of nemolizumab that demonstrated the biologic is also effective at rapidly clearing AD lesions. The study, which evaluated three different doses in 226 adults with moderate to severe AD and severe pruritus who were on background topical corticosteroids, showed that nemolizumab at 30 mg every 4 weeks trounced placebo in terms of itch reduction: The 69% drop from baseline in Peak Pruritus Numeric Rating Scale at week 16 was twice that in controls, with a significant difference apparent even at week 1.
But in addition, the 33% IGA 0/1 rate at the same time point bested the 12% rate in controls. The EASI 75 response rate was significantly higher as well – 49% versus 19% – as was the EASI 90 response of 33%, compared with 9% in controls. Moreover, nemolizumab-treated patients used close to 40% less topical steroids during the study (J Allergy Clin Immunol. 2020 Jan;145[1]:173-82).
“This is something that’s fascinating. The study gets into the idea that a subset of atopic dermatitis patients have the itch that rashes, and perhaps if you break the itch/scratch cycle you can modify the lesions. Or the effect may even be due to the direct anti-inflammatory action of IL-31 blockade,” Dr. Silverberg observed.
It appeared that a plateau hadn’t been reached for some endpoints out at week 24, when the study ended. Japanese phase 3 studies have been completed, with what he called “great results,” and others are ongoing in the United States.
Tralokinumab: This fully human monoclonal antibody binds to IL-13, but unlike dupilumab, it doesn’t also inhibit IL-4. Tralokinumab met all primary and secondary endpoints in three pivotal phase 3 clinical trials, known as ECZTRA 1-3, that assessed it as treatment for moderate to severe AD in adults and showed an overall adverse event rate comparable with placebo. Leo Pharma, the Danish company developing the biologic, has announced it will file for marketing approval before the end of 2020. Phase 3 data would have been presented at the annual meeting of the American Academy of Dermatology in Denver, had it not been canceled. Dr. Silverberg said that, based upon phase 2 results, it appears tralokinumab may not be quite as effective as dupilumab in the overall AD population, but he predicted the newcomer will still play a useful role.
“The complexities of the immune system are such that some patients will respond better to one drug than another. I think we still have a lot to learn about who the patients are for these novel assets,” he said.
Lebrikizumab: This is another selective IL-13 inhibitor, but this one binds to IL-13 in a slightly different way than tralokinumab. The Food and Drug Administration granted it Fast Track status in December 2019. Twin placebo-controlled phase 3 studies of lebrikizumab as monotherapy for moderate to severe AD are ongoing, and another phase 3 trial of the biologic in combination with topical steroids is planned. Based upon the results of a phase 2b study, the highest dose studied – 250 mg every 2 weeks – appears to be at least as effective as dupilumab.
Nonsteroidal topical agents
These three late-stage topical creams – ruxolitinib, delgocitinib, and tapinarof – have previously received considerable coverage in Dermatology News. Ruxolitinib, a selective JAK1/2 inhibitor, has completed a positive phase 3 trial in adolescents and adults with mild to moderate AD. Delgocitinib, a pan-JAK1/2/3 and Tyrosine kinase 2 inhibitor, is already approved in an ointment formulation in Japan, and the cream formulation is in phase 2 studies in the United States and Europe. Tapinarof has a unique mechanism of action – it’s an aryl hydrocarbon receptor modulator – and is now in phase 3 in adolescents and adults with moderate to severe AD.
These three drugs appear to offer efficacy that’s comparable to or even better than medium-potency topical steroids, and without the notorious steroidal side effects that have caused widespread parental steroid-phobia. Potential applications for other inflammatory diseases, including vitiligo and psoriasis, are under study.
Dr. Silverberg reported receiving research grants from Galderma and GlaxoSmithKline and serving as a consultant to those pharmaceutical companies and more than a dozen others.
Major , Jonathan I. Silverberg, MD, PhD, said during a virtual meeting held by the George Washington University department of dermatology. The virtual meeting included presentations that had been slated for the annual meeting of the American Academy of Dermatology, which was canceled due to the COVID-19 pandemic.
“In the next 2-3 years, we may have nine new treatments approved for atopic dermatitis,” said Dr. Silverberg, director of clinical research and contact dermatitis at the University.
All nine medications he discussed are either in ongoing pivotal phase 3 randomized controlled trials or have completed their phase 3 developmental programs. “This is not theoretical; these are things you’re going to be using in your toolbox imminently,” he stressed.
Oral JAK inhibitors
The Janus kinase (JAK) pathway is the intracellular signaling mediator that interacts with extracellular inflammatory cytokines, including interleukin-4, -13, and -31, which are familiar to dermatologists because they’re targeted by potent biologic monoclonal antibody therapies. For example, IL-4 goes through JAK1 and 3, while IL-31 signals through JAK1 and 2.
“You really need to know the key JAK and STAT pathways involved in atopic dermatitis because it will help you determine the selectivity of the agents you’re going to be using,” the dermatologist advised.
Three oral, once-daily JAK inhibitors – abrocitinib, upadacitinib, and baricitinib – are in an advanced stage of development.
“Upadacitinib and abrocitinib may be the two most potent options coming to market soon for us to be thinking about,” Dr. Silverberg said.
Abrocitinib: Three positive phase 3 studies featuring this selective JAK1 inhibitor have been completed in adults with moderate to severe atopic dermatitis (AD). The most recent, JADE COMPARE, featured a head-to-head randomized comparison of abrocitinib and the injectable IL-4/IL-13 inhibitor dupilumab. The results of this 837-patient study haven’t yet been formally presented at a conference because of the COVID-19 pandemic. However, Pfizer recently announced that abrocitinib at 200 mg/day achieved significantly greater improvements than dupilumab (Dupixent) in the coprimary endpoints of skin clearance as reflected in an Investigator’s Global Assessment (IGA) score of 0 or 1 (that is, clear or almost clear) and disease extent based upon 75% reduction from baseline in Eczema Area and Severity Index (EASI 75) at 12 weeks. The same was true at 16 weeks.
Also, a significantly larger proportion of abrocitinib-treated patients achieved at least a 4-point reduction in itch severity as measured using the Peak Pruritus Numerical Rating Scale at week 2. The company plans to file for regulatory approval later this year.
The JADE COMPARE data are exciting because of a pressing unmet need for treatment options that are even more powerful than dupilumab, Dr. Silverberg said.
Upadacitinib: This is selective JAK1 inhibitor is not as far along in the developmental pipeline as abrocitinib, but the efficacy appears to be comparable. In a phase 2 study of 126 adults with moderate to severe AD, upadacitinib at the top dose of 30 mg/day achieved efficacy results Dr. Silverberg deemed “quite extraordinary,” with a rate of IGA score of 0 or 1 of 50% at 16 weeks and an EASI 75 response rate of 69%. Those findings numerically eclipsed results seen in an earlier phase 3 pivotal trial for dupilumab, in which the IGA 0/1 rate was 37% and EASI 75 was 48%, albeit with the caveat that cross-trial comparisons must be taken with a large grain of salt.
Baricitinib: Multiple phase 3 studies of this JAK 1/2 inhibitor have reported positive results. At the top dose of 4 mg/day, baricitinib appears to be less effective than dupilumab in its earlier pivotal trials.
“This may be a good oral option for our patients. It could be similar to the Otezla [apremilast] story in psoriasis: It’s perhaps not as effective as a lot of the biologics, but patients often prefer an oral option,” Dr. Silverberg said.
Of note, in one large, placebo-controlled, phase 3 study of baricitinib on top of background low- or medium-potency topical steroids, the IGA 0/1 rate at 16 weeks with placebo plus topical steroids was a modest 14.7%, which underscores that this long-time workhorse topical therapy is objectively less effective than most physicians think. In contrast, the IGA 0/1 rate with baricitinib at 4 mg/day plus topical steroids was a more respectable 30.6%.
All three oral JAK inhibitors have rapid onset of efficacy, a key advantage over the biologic agents.
“The issue you have to keep in mind is safety. The safety in the atopic dermatitis population was overall quite good for all three drugs. However, safety concerns have come up with JAK inhibitors in rheumatoid arthritis. I think that’s the part we watch the most in this. The efficacy has become clear. Now the question is where does the safety take us,” he said.
Novel injectable biologics
Nemolizumab: This humanized monoclonal antibody inhibits IL-31 receptor alpha. Mounting evidence implicates IL-31 as both a proinflammatory and immunomodulatory cytokine linking the immune and neural systems.
Early on, most researchers pigeonholed IL-31 as being a key player only in the itch factor in AD. Not so. Indeed, Dr. Silverberg was the lead investigator in a recent phase 2b study of nemolizumab that demonstrated the biologic is also effective at rapidly clearing AD lesions. The study, which evaluated three different doses in 226 adults with moderate to severe AD and severe pruritus who were on background topical corticosteroids, showed that nemolizumab at 30 mg every 4 weeks trounced placebo in terms of itch reduction: The 69% drop from baseline in Peak Pruritus Numeric Rating Scale at week 16 was twice that in controls, with a significant difference apparent even at week 1.
But in addition, the 33% IGA 0/1 rate at the same time point bested the 12% rate in controls. The EASI 75 response rate was significantly higher as well – 49% versus 19% – as was the EASI 90 response of 33%, compared with 9% in controls. Moreover, nemolizumab-treated patients used close to 40% less topical steroids during the study (J Allergy Clin Immunol. 2020 Jan;145[1]:173-82).
“This is something that’s fascinating. The study gets into the idea that a subset of atopic dermatitis patients have the itch that rashes, and perhaps if you break the itch/scratch cycle you can modify the lesions. Or the effect may even be due to the direct anti-inflammatory action of IL-31 blockade,” Dr. Silverberg observed.
It appeared that a plateau hadn’t been reached for some endpoints out at week 24, when the study ended. Japanese phase 3 studies have been completed, with what he called “great results,” and others are ongoing in the United States.
Tralokinumab: This fully human monoclonal antibody binds to IL-13, but unlike dupilumab, it doesn’t also inhibit IL-4. Tralokinumab met all primary and secondary endpoints in three pivotal phase 3 clinical trials, known as ECZTRA 1-3, that assessed it as treatment for moderate to severe AD in adults and showed an overall adverse event rate comparable with placebo. Leo Pharma, the Danish company developing the biologic, has announced it will file for marketing approval before the end of 2020. Phase 3 data would have been presented at the annual meeting of the American Academy of Dermatology in Denver, had it not been canceled. Dr. Silverberg said that, based upon phase 2 results, it appears tralokinumab may not be quite as effective as dupilumab in the overall AD population, but he predicted the newcomer will still play a useful role.
“The complexities of the immune system are such that some patients will respond better to one drug than another. I think we still have a lot to learn about who the patients are for these novel assets,” he said.
Lebrikizumab: This is another selective IL-13 inhibitor, but this one binds to IL-13 in a slightly different way than tralokinumab. The Food and Drug Administration granted it Fast Track status in December 2019. Twin placebo-controlled phase 3 studies of lebrikizumab as monotherapy for moderate to severe AD are ongoing, and another phase 3 trial of the biologic in combination with topical steroids is planned. Based upon the results of a phase 2b study, the highest dose studied – 250 mg every 2 weeks – appears to be at least as effective as dupilumab.
Nonsteroidal topical agents
These three late-stage topical creams – ruxolitinib, delgocitinib, and tapinarof – have previously received considerable coverage in Dermatology News. Ruxolitinib, a selective JAK1/2 inhibitor, has completed a positive phase 3 trial in adolescents and adults with mild to moderate AD. Delgocitinib, a pan-JAK1/2/3 and Tyrosine kinase 2 inhibitor, is already approved in an ointment formulation in Japan, and the cream formulation is in phase 2 studies in the United States and Europe. Tapinarof has a unique mechanism of action – it’s an aryl hydrocarbon receptor modulator – and is now in phase 3 in adolescents and adults with moderate to severe AD.
These three drugs appear to offer efficacy that’s comparable to or even better than medium-potency topical steroids, and without the notorious steroidal side effects that have caused widespread parental steroid-phobia. Potential applications for other inflammatory diseases, including vitiligo and psoriasis, are under study.
Dr. Silverberg reported receiving research grants from Galderma and GlaxoSmithKline and serving as a consultant to those pharmaceutical companies and more than a dozen others.
Major , Jonathan I. Silverberg, MD, PhD, said during a virtual meeting held by the George Washington University department of dermatology. The virtual meeting included presentations that had been slated for the annual meeting of the American Academy of Dermatology, which was canceled due to the COVID-19 pandemic.
“In the next 2-3 years, we may have nine new treatments approved for atopic dermatitis,” said Dr. Silverberg, director of clinical research and contact dermatitis at the University.
All nine medications he discussed are either in ongoing pivotal phase 3 randomized controlled trials or have completed their phase 3 developmental programs. “This is not theoretical; these are things you’re going to be using in your toolbox imminently,” he stressed.
Oral JAK inhibitors
The Janus kinase (JAK) pathway is the intracellular signaling mediator that interacts with extracellular inflammatory cytokines, including interleukin-4, -13, and -31, which are familiar to dermatologists because they’re targeted by potent biologic monoclonal antibody therapies. For example, IL-4 goes through JAK1 and 3, while IL-31 signals through JAK1 and 2.
“You really need to know the key JAK and STAT pathways involved in atopic dermatitis because it will help you determine the selectivity of the agents you’re going to be using,” the dermatologist advised.
Three oral, once-daily JAK inhibitors – abrocitinib, upadacitinib, and baricitinib – are in an advanced stage of development.
“Upadacitinib and abrocitinib may be the two most potent options coming to market soon for us to be thinking about,” Dr. Silverberg said.
Abrocitinib: Three positive phase 3 studies featuring this selective JAK1 inhibitor have been completed in adults with moderate to severe atopic dermatitis (AD). The most recent, JADE COMPARE, featured a head-to-head randomized comparison of abrocitinib and the injectable IL-4/IL-13 inhibitor dupilumab. The results of this 837-patient study haven’t yet been formally presented at a conference because of the COVID-19 pandemic. However, Pfizer recently announced that abrocitinib at 200 mg/day achieved significantly greater improvements than dupilumab (Dupixent) in the coprimary endpoints of skin clearance as reflected in an Investigator’s Global Assessment (IGA) score of 0 or 1 (that is, clear or almost clear) and disease extent based upon 75% reduction from baseline in Eczema Area and Severity Index (EASI 75) at 12 weeks. The same was true at 16 weeks.
Also, a significantly larger proportion of abrocitinib-treated patients achieved at least a 4-point reduction in itch severity as measured using the Peak Pruritus Numerical Rating Scale at week 2. The company plans to file for regulatory approval later this year.
The JADE COMPARE data are exciting because of a pressing unmet need for treatment options that are even more powerful than dupilumab, Dr. Silverberg said.
Upadacitinib: This is selective JAK1 inhibitor is not as far along in the developmental pipeline as abrocitinib, but the efficacy appears to be comparable. In a phase 2 study of 126 adults with moderate to severe AD, upadacitinib at the top dose of 30 mg/day achieved efficacy results Dr. Silverberg deemed “quite extraordinary,” with a rate of IGA score of 0 or 1 of 50% at 16 weeks and an EASI 75 response rate of 69%. Those findings numerically eclipsed results seen in an earlier phase 3 pivotal trial for dupilumab, in which the IGA 0/1 rate was 37% and EASI 75 was 48%, albeit with the caveat that cross-trial comparisons must be taken with a large grain of salt.
Baricitinib: Multiple phase 3 studies of this JAK 1/2 inhibitor have reported positive results. At the top dose of 4 mg/day, baricitinib appears to be less effective than dupilumab in its earlier pivotal trials.
“This may be a good oral option for our patients. It could be similar to the Otezla [apremilast] story in psoriasis: It’s perhaps not as effective as a lot of the biologics, but patients often prefer an oral option,” Dr. Silverberg said.
Of note, in one large, placebo-controlled, phase 3 study of baricitinib on top of background low- or medium-potency topical steroids, the IGA 0/1 rate at 16 weeks with placebo plus topical steroids was a modest 14.7%, which underscores that this long-time workhorse topical therapy is objectively less effective than most physicians think. In contrast, the IGA 0/1 rate with baricitinib at 4 mg/day plus topical steroids was a more respectable 30.6%.
All three oral JAK inhibitors have rapid onset of efficacy, a key advantage over the biologic agents.
“The issue you have to keep in mind is safety. The safety in the atopic dermatitis population was overall quite good for all three drugs. However, safety concerns have come up with JAK inhibitors in rheumatoid arthritis. I think that’s the part we watch the most in this. The efficacy has become clear. Now the question is where does the safety take us,” he said.
Novel injectable biologics
Nemolizumab: This humanized monoclonal antibody inhibits IL-31 receptor alpha. Mounting evidence implicates IL-31 as both a proinflammatory and immunomodulatory cytokine linking the immune and neural systems.
Early on, most researchers pigeonholed IL-31 as being a key player only in the itch factor in AD. Not so. Indeed, Dr. Silverberg was the lead investigator in a recent phase 2b study of nemolizumab that demonstrated the biologic is also effective at rapidly clearing AD lesions. The study, which evaluated three different doses in 226 adults with moderate to severe AD and severe pruritus who were on background topical corticosteroids, showed that nemolizumab at 30 mg every 4 weeks trounced placebo in terms of itch reduction: The 69% drop from baseline in Peak Pruritus Numeric Rating Scale at week 16 was twice that in controls, with a significant difference apparent even at week 1.
But in addition, the 33% IGA 0/1 rate at the same time point bested the 12% rate in controls. The EASI 75 response rate was significantly higher as well – 49% versus 19% – as was the EASI 90 response of 33%, compared with 9% in controls. Moreover, nemolizumab-treated patients used close to 40% less topical steroids during the study (J Allergy Clin Immunol. 2020 Jan;145[1]:173-82).
“This is something that’s fascinating. The study gets into the idea that a subset of atopic dermatitis patients have the itch that rashes, and perhaps if you break the itch/scratch cycle you can modify the lesions. Or the effect may even be due to the direct anti-inflammatory action of IL-31 blockade,” Dr. Silverberg observed.
It appeared that a plateau hadn’t been reached for some endpoints out at week 24, when the study ended. Japanese phase 3 studies have been completed, with what he called “great results,” and others are ongoing in the United States.
Tralokinumab: This fully human monoclonal antibody binds to IL-13, but unlike dupilumab, it doesn’t also inhibit IL-4. Tralokinumab met all primary and secondary endpoints in three pivotal phase 3 clinical trials, known as ECZTRA 1-3, that assessed it as treatment for moderate to severe AD in adults and showed an overall adverse event rate comparable with placebo. Leo Pharma, the Danish company developing the biologic, has announced it will file for marketing approval before the end of 2020. Phase 3 data would have been presented at the annual meeting of the American Academy of Dermatology in Denver, had it not been canceled. Dr. Silverberg said that, based upon phase 2 results, it appears tralokinumab may not be quite as effective as dupilumab in the overall AD population, but he predicted the newcomer will still play a useful role.
“The complexities of the immune system are such that some patients will respond better to one drug than another. I think we still have a lot to learn about who the patients are for these novel assets,” he said.
Lebrikizumab: This is another selective IL-13 inhibitor, but this one binds to IL-13 in a slightly different way than tralokinumab. The Food and Drug Administration granted it Fast Track status in December 2019. Twin placebo-controlled phase 3 studies of lebrikizumab as monotherapy for moderate to severe AD are ongoing, and another phase 3 trial of the biologic in combination with topical steroids is planned. Based upon the results of a phase 2b study, the highest dose studied – 250 mg every 2 weeks – appears to be at least as effective as dupilumab.
Nonsteroidal topical agents
These three late-stage topical creams – ruxolitinib, delgocitinib, and tapinarof – have previously received considerable coverage in Dermatology News. Ruxolitinib, a selective JAK1/2 inhibitor, has completed a positive phase 3 trial in adolescents and adults with mild to moderate AD. Delgocitinib, a pan-JAK1/2/3 and Tyrosine kinase 2 inhibitor, is already approved in an ointment formulation in Japan, and the cream formulation is in phase 2 studies in the United States and Europe. Tapinarof has a unique mechanism of action – it’s an aryl hydrocarbon receptor modulator – and is now in phase 3 in adolescents and adults with moderate to severe AD.
These three drugs appear to offer efficacy that’s comparable to or even better than medium-potency topical steroids, and without the notorious steroidal side effects that have caused widespread parental steroid-phobia. Potential applications for other inflammatory diseases, including vitiligo and psoriasis, are under study.
Dr. Silverberg reported receiving research grants from Galderma and GlaxoSmithKline and serving as a consultant to those pharmaceutical companies and more than a dozen others.
Mother of pearl: The power of pearl powder
Because of its dense protein and mineral composition, it has been used to treat several skin and bone disorders, as well as palpitations, insomnia, and epilepsy.3,4 The pearl-farming industry itself was established in Japan and has existed for more than a century; today, pearls are cultured globally and continue to receive attention for conferring health benefits.5
Calcium carbonate is the primary component of mollusk shells (roughly 95%), with the remainder an organic matrix including proteins, glycoproteins, and polysaccharides.6 Pearl powder is known to have exhibited antiaging, antioxidant, antiradiative, and tonic activities; in recent years, it has been incorporated into health foods for such properties and used in the clinical setting to treat ulcers (aphthous, gastric, and duodenal).4,7 Consisting of multiple active proteins, pearl powder is thought to be conducive to skin cell growth and effective for wound repair.4 This column focuses on recent research into the dermatologic potential of the powder derived from mother of pearl.
Wound healing
A decade ago, Jian-Ping et al. showed in mice that the water-soluble matrix of pearl powder (Hyriopsis cumingii) could significantly induce oral fibroblast proliferation and collagen accumulation, suppress matrix metalloproteinase-2 activity, and significantly foster TIMP-1 synthesis. The investigators concluded that the wound healing facilitated by pearl powder derives, in part, from its capacity to promote fibroblast mitosis, collagen deposition, and production of TIMP-1.8
Two years later, Lee et al. evaluated the effects of water-soluble nacre (mother of pearl) on second-degree burn wound healing in porcine skin as a proxy for human skin. They found that its application quickly led to burn-induced granulation areas filling with collagen, with normal skin appearance restored to wounded dermis and epidermis. Angiogenesis was also promoted by water-soluble nacre as was wound recovery in areas with apoptotic and necrotic cellular damage. Murine fibroblast NIH3T3 cells treated with water-soluble nacre also demonstrated augmented proliferation and collagen production. The researchers cited the restoration of angiogenesis and fibroblast activity as the primary benefits of water-soluble nacre, suggesting its potential as a wound therapy, preferable to powdered nacre due to better biocompatibility with less discomfort.9
The next year, Li et al. found that mother of pearl extract promoted cell migration of fibroblasts in cell culture, demonstrating its potential as a wound healing model.7In 2019, Chen et al. studied the effects of pearl powders of varying particle sizes to treat wounds in vitro and in vivo. They found that micro- and nanosized pearl powders augmented proliferation and migration of skin cells and shortened wound closure time. All powders also improved the biomechanical strength of healed skin, enhanced collagen formation and deposition, and expanded cutaneous angiogenesis, with nanoscale pearl powder displaying greatest efficiency.4
Skin tone and atopic dermatitis
In 2000, Lopez et al. implanted powdered nacre (mother of pearl derived from Pinctada maxima), which can promote and regulate bone-forming cells, into rat dermis to evaluate its effects on skin fibroblasts. They noted that the implant yielded well-vascularized tissue and improved extracellular matrix production, synthesis of substances involved in cellular adhesion and communication, and tissue regeneration (such as collagen types I and III). The investigators concluded that the powdered nacre contributed to the conditions necessary for improved skin tone and proper physiologic functioning of the skin.10
Rousseau et al. extracted lipids from the nacre of the oyster P. margaritifera to test on artificially dehydrated skin explants with the intention of developing new treatments for atopic dermatitis. The researchers determined that the lipids spurred a reconstitution of the intercellular material of the stratum corneum, concluding that new products to treat atopic dermatitis might be based on the signaling activity of nacre lipids.11
Antifibrotic and anti-inflammatory activity
A 2015 study by Yang et al. showed that a room-temperature superextraction system to yield the main active constituents of pearl was successful in enhancing their anti-inflammatory and antiapoptotic activity in human keratinocyte cells (HaCaT) exposed to low-dose UVB. The investigators combined pearl extract and poly (gamma-glutamic acid) hydrogels and observed reductions in inflammation and apoptosis of HaCaT cells. They concluded that a marketed pearl extract may be able to suppress radiation dermatitis present in keratinocytes.12
Two years later, Latire et al. used human dermal fibroblasts in primary culture to assess the potential biological activities of the matrix macromolecular components extracted from the shells of two edible mollusks (the blue mussel Mytilus edulis and the Pacific oyster Crassostrea gigas). The investigators found that both extracts influenced metabolic functions of the cells and reduced type I collagen levels, with an associated rise in matrix metalloproteinase-1 activity. Given their findings implying the effectiveness of the extracts in facilitating the catabolic pathway of human dermal fibroblasts, the authors suggest that these shell matrices present the potential for use in treating fibrosis, especially for scleroderma.6
Antioxidant and antiaging activity
Shao et al. demonstrated 10 years ago that pearl powder provides a moisturizing effect on the skin, with ultramicro pearl powder delivering a more robust moisturizing result than water-soluble pearl powder. These two types of pearl powder, along with another one tested (ultranano pearl powder), also significantly diminished the activation of tyrosinase and free radicals. Water-soluble pearl powder did not perform as well as the other two formulations in free radical scavenging. The investigators suggested that their results support the use of pearl powder to combat aging and enhance beauty, and could be used in the clinical setting.13
In 2017, Yang et al. reported on the in vitro antihemolytic and antioxidant activity of pearl powder in shielding human erythrocytes against 2,2’-azobis(2-amidinopropane) dihydrochloride–induced oxidative damage to membrane proteins/lipids. The researchers contend that the strong antioxidant qualities of pearl powder could be applied to prevent or protect against various diseases resulting from free radical damage.2
Human trials: Antioxidant, antiaging, skin appearance
Chiu et al. studied the antioxidant activity of various pearl powder extracts in a randomized, placebo-controlled trial in 2018. They also investigated the life span–prolonging effects of the powders using wild-type Caenorhabditis elegans. Twenty healthy middle-aged subjects were separated into two groups (experimental and placebo), with 3 g of pearl powder administered in capsules to the former and 3 g of placebo to the latter over 8 weeks. Blood samples taken at the beginning and every 2 weeks during the trial and in the 10th week revealed maximum antioxidant activity of the pearl powder and prolongation of C. elegans lifespan by 18.87%. Subjects using pearl powder demonstrated significant increases in total antioxidant capacity, thiols, glutathione, and enzymic antioxidant activity, along with notably inhibited lipid peroxidation products. The investigators concluded that pearl powder extract acted as a potent antioxidant and its use may be warranted to treat degenerative conditions related to aging.3
A recent study of the perception of blue light on Korean women’s faces using blue pearl pigment revealed that the pigment does indeed elicit the perception of the blue-light effect, notably transparency and gloss, which is particularly valued in Korea.14
Conclusion
The use of mother of pearl and pearl powder in traditional Chinese medicine and as a cosmetic and food additive has a rich and lengthy history. Contemporary research clearly suggests interesting avenues for further investigation and some promising results. Much more research is necessary, though, to delineate the potential roles of pearl powder in the skin care arsenal.
Dr. Baumann is a private practice dermatologist, researcher, author, and entrepreneur who practices in Miami. She founded the Cosmetic Dermatology Center at the University of Miami in 1997. Dr. Baumann wrote two textbooks: “Cosmetic Dermatology: Principles and Practice” (New York: McGraw-Hill, 2002), and “Cosmeceuticals and Cosmetic Ingredients” (New York: McGraw-Hill, 2014), and a New York Times Best Sellers book for consumers, “The Skin Type Solution” (New York: Bantam Dell, 2006). Dr. Baumann has received funding for advisory boards and/or clinical research trials from Allergan, Evolus, Galderma, and Revance. She is the founder and CEO of Skin Type Solutions Franchise Systems. Write to her at dermnews@mdedge.com
References
1. Zhang J et al. J Sep Sci. 2015 May;38(9):1552-60.
2. Yang HL et al. J Food Drug Anal. 2017 Oct;25(4):898-907.
3. Chiu HF et al. J Food Drug Anal. 2018 Jan;26(1):309-17.
4. Chen X et al. Drug Dev Ind Pharm. 2019 Jun;45(6):1009-16.
5. Nagai K. Zoolog Sci. 2013 Oct;30(10):783-93.
6. Latire T et al. Cytotechnology. 2017 Oct;69(5):815-29.
7. Li YC et al. Pharm Biol. 2013 Mar;51(3):289-97.
8. Jian-Ping D et al. Pharm Biol. 2010 Feb;48(2):122-7.
9. Lee K et al. Mol Biol Rep. 2012 Mar;39(3):3211-8.
10. Lopez E et al. Tissue Cell. 2000 Feb;32(1):95-101.
11. Rousseau M et al. Comp Biochem Physiol B Biochem Mol Biol. 2006 Sep;145(1):1-9.
12. Yang YL et al. Biomed Mater Eng. 2015;26 Suppl 1:S139-45.
13. Shao DZ et al. J Cosmet Sci. 2010 Mar-Apr;61(2):133-45.
14. Lee M et al. Skin Res Technol. 2020 Jan;26(1):76-80.
Because of its dense protein and mineral composition, it has been used to treat several skin and bone disorders, as well as palpitations, insomnia, and epilepsy.3,4 The pearl-farming industry itself was established in Japan and has existed for more than a century; today, pearls are cultured globally and continue to receive attention for conferring health benefits.5
Calcium carbonate is the primary component of mollusk shells (roughly 95%), with the remainder an organic matrix including proteins, glycoproteins, and polysaccharides.6 Pearl powder is known to have exhibited antiaging, antioxidant, antiradiative, and tonic activities; in recent years, it has been incorporated into health foods for such properties and used in the clinical setting to treat ulcers (aphthous, gastric, and duodenal).4,7 Consisting of multiple active proteins, pearl powder is thought to be conducive to skin cell growth and effective for wound repair.4 This column focuses on recent research into the dermatologic potential of the powder derived from mother of pearl.
Wound healing
A decade ago, Jian-Ping et al. showed in mice that the water-soluble matrix of pearl powder (Hyriopsis cumingii) could significantly induce oral fibroblast proliferation and collagen accumulation, suppress matrix metalloproteinase-2 activity, and significantly foster TIMP-1 synthesis. The investigators concluded that the wound healing facilitated by pearl powder derives, in part, from its capacity to promote fibroblast mitosis, collagen deposition, and production of TIMP-1.8
Two years later, Lee et al. evaluated the effects of water-soluble nacre (mother of pearl) on second-degree burn wound healing in porcine skin as a proxy for human skin. They found that its application quickly led to burn-induced granulation areas filling with collagen, with normal skin appearance restored to wounded dermis and epidermis. Angiogenesis was also promoted by water-soluble nacre as was wound recovery in areas with apoptotic and necrotic cellular damage. Murine fibroblast NIH3T3 cells treated with water-soluble nacre also demonstrated augmented proliferation and collagen production. The researchers cited the restoration of angiogenesis and fibroblast activity as the primary benefits of water-soluble nacre, suggesting its potential as a wound therapy, preferable to powdered nacre due to better biocompatibility with less discomfort.9
The next year, Li et al. found that mother of pearl extract promoted cell migration of fibroblasts in cell culture, demonstrating its potential as a wound healing model.7In 2019, Chen et al. studied the effects of pearl powders of varying particle sizes to treat wounds in vitro and in vivo. They found that micro- and nanosized pearl powders augmented proliferation and migration of skin cells and shortened wound closure time. All powders also improved the biomechanical strength of healed skin, enhanced collagen formation and deposition, and expanded cutaneous angiogenesis, with nanoscale pearl powder displaying greatest efficiency.4
Skin tone and atopic dermatitis
In 2000, Lopez et al. implanted powdered nacre (mother of pearl derived from Pinctada maxima), which can promote and regulate bone-forming cells, into rat dermis to evaluate its effects on skin fibroblasts. They noted that the implant yielded well-vascularized tissue and improved extracellular matrix production, synthesis of substances involved in cellular adhesion and communication, and tissue regeneration (such as collagen types I and III). The investigators concluded that the powdered nacre contributed to the conditions necessary for improved skin tone and proper physiologic functioning of the skin.10
Rousseau et al. extracted lipids from the nacre of the oyster P. margaritifera to test on artificially dehydrated skin explants with the intention of developing new treatments for atopic dermatitis. The researchers determined that the lipids spurred a reconstitution of the intercellular material of the stratum corneum, concluding that new products to treat atopic dermatitis might be based on the signaling activity of nacre lipids.11
Antifibrotic and anti-inflammatory activity
A 2015 study by Yang et al. showed that a room-temperature superextraction system to yield the main active constituents of pearl was successful in enhancing their anti-inflammatory and antiapoptotic activity in human keratinocyte cells (HaCaT) exposed to low-dose UVB. The investigators combined pearl extract and poly (gamma-glutamic acid) hydrogels and observed reductions in inflammation and apoptosis of HaCaT cells. They concluded that a marketed pearl extract may be able to suppress radiation dermatitis present in keratinocytes.12
Two years later, Latire et al. used human dermal fibroblasts in primary culture to assess the potential biological activities of the matrix macromolecular components extracted from the shells of two edible mollusks (the blue mussel Mytilus edulis and the Pacific oyster Crassostrea gigas). The investigators found that both extracts influenced metabolic functions of the cells and reduced type I collagen levels, with an associated rise in matrix metalloproteinase-1 activity. Given their findings implying the effectiveness of the extracts in facilitating the catabolic pathway of human dermal fibroblasts, the authors suggest that these shell matrices present the potential for use in treating fibrosis, especially for scleroderma.6
Antioxidant and antiaging activity
Shao et al. demonstrated 10 years ago that pearl powder provides a moisturizing effect on the skin, with ultramicro pearl powder delivering a more robust moisturizing result than water-soluble pearl powder. These two types of pearl powder, along with another one tested (ultranano pearl powder), also significantly diminished the activation of tyrosinase and free radicals. Water-soluble pearl powder did not perform as well as the other two formulations in free radical scavenging. The investigators suggested that their results support the use of pearl powder to combat aging and enhance beauty, and could be used in the clinical setting.13
In 2017, Yang et al. reported on the in vitro antihemolytic and antioxidant activity of pearl powder in shielding human erythrocytes against 2,2’-azobis(2-amidinopropane) dihydrochloride–induced oxidative damage to membrane proteins/lipids. The researchers contend that the strong antioxidant qualities of pearl powder could be applied to prevent or protect against various diseases resulting from free radical damage.2
Human trials: Antioxidant, antiaging, skin appearance
Chiu et al. studied the antioxidant activity of various pearl powder extracts in a randomized, placebo-controlled trial in 2018. They also investigated the life span–prolonging effects of the powders using wild-type Caenorhabditis elegans. Twenty healthy middle-aged subjects were separated into two groups (experimental and placebo), with 3 g of pearl powder administered in capsules to the former and 3 g of placebo to the latter over 8 weeks. Blood samples taken at the beginning and every 2 weeks during the trial and in the 10th week revealed maximum antioxidant activity of the pearl powder and prolongation of C. elegans lifespan by 18.87%. Subjects using pearl powder demonstrated significant increases in total antioxidant capacity, thiols, glutathione, and enzymic antioxidant activity, along with notably inhibited lipid peroxidation products. The investigators concluded that pearl powder extract acted as a potent antioxidant and its use may be warranted to treat degenerative conditions related to aging.3
A recent study of the perception of blue light on Korean women’s faces using blue pearl pigment revealed that the pigment does indeed elicit the perception of the blue-light effect, notably transparency and gloss, which is particularly valued in Korea.14
Conclusion
The use of mother of pearl and pearl powder in traditional Chinese medicine and as a cosmetic and food additive has a rich and lengthy history. Contemporary research clearly suggests interesting avenues for further investigation and some promising results. Much more research is necessary, though, to delineate the potential roles of pearl powder in the skin care arsenal.
Dr. Baumann is a private practice dermatologist, researcher, author, and entrepreneur who practices in Miami. She founded the Cosmetic Dermatology Center at the University of Miami in 1997. Dr. Baumann wrote two textbooks: “Cosmetic Dermatology: Principles and Practice” (New York: McGraw-Hill, 2002), and “Cosmeceuticals and Cosmetic Ingredients” (New York: McGraw-Hill, 2014), and a New York Times Best Sellers book for consumers, “The Skin Type Solution” (New York: Bantam Dell, 2006). Dr. Baumann has received funding for advisory boards and/or clinical research trials from Allergan, Evolus, Galderma, and Revance. She is the founder and CEO of Skin Type Solutions Franchise Systems. Write to her at dermnews@mdedge.com
References
1. Zhang J et al. J Sep Sci. 2015 May;38(9):1552-60.
2. Yang HL et al. J Food Drug Anal. 2017 Oct;25(4):898-907.
3. Chiu HF et al. J Food Drug Anal. 2018 Jan;26(1):309-17.
4. Chen X et al. Drug Dev Ind Pharm. 2019 Jun;45(6):1009-16.
5. Nagai K. Zoolog Sci. 2013 Oct;30(10):783-93.
6. Latire T et al. Cytotechnology. 2017 Oct;69(5):815-29.
7. Li YC et al. Pharm Biol. 2013 Mar;51(3):289-97.
8. Jian-Ping D et al. Pharm Biol. 2010 Feb;48(2):122-7.
9. Lee K et al. Mol Biol Rep. 2012 Mar;39(3):3211-8.
10. Lopez E et al. Tissue Cell. 2000 Feb;32(1):95-101.
11. Rousseau M et al. Comp Biochem Physiol B Biochem Mol Biol. 2006 Sep;145(1):1-9.
12. Yang YL et al. Biomed Mater Eng. 2015;26 Suppl 1:S139-45.
13. Shao DZ et al. J Cosmet Sci. 2010 Mar-Apr;61(2):133-45.
14. Lee M et al. Skin Res Technol. 2020 Jan;26(1):76-80.
Because of its dense protein and mineral composition, it has been used to treat several skin and bone disorders, as well as palpitations, insomnia, and epilepsy.3,4 The pearl-farming industry itself was established in Japan and has existed for more than a century; today, pearls are cultured globally and continue to receive attention for conferring health benefits.5
Calcium carbonate is the primary component of mollusk shells (roughly 95%), with the remainder an organic matrix including proteins, glycoproteins, and polysaccharides.6 Pearl powder is known to have exhibited antiaging, antioxidant, antiradiative, and tonic activities; in recent years, it has been incorporated into health foods for such properties and used in the clinical setting to treat ulcers (aphthous, gastric, and duodenal).4,7 Consisting of multiple active proteins, pearl powder is thought to be conducive to skin cell growth and effective for wound repair.4 This column focuses on recent research into the dermatologic potential of the powder derived from mother of pearl.
Wound healing
A decade ago, Jian-Ping et al. showed in mice that the water-soluble matrix of pearl powder (Hyriopsis cumingii) could significantly induce oral fibroblast proliferation and collagen accumulation, suppress matrix metalloproteinase-2 activity, and significantly foster TIMP-1 synthesis. The investigators concluded that the wound healing facilitated by pearl powder derives, in part, from its capacity to promote fibroblast mitosis, collagen deposition, and production of TIMP-1.8
Two years later, Lee et al. evaluated the effects of water-soluble nacre (mother of pearl) on second-degree burn wound healing in porcine skin as a proxy for human skin. They found that its application quickly led to burn-induced granulation areas filling with collagen, with normal skin appearance restored to wounded dermis and epidermis. Angiogenesis was also promoted by water-soluble nacre as was wound recovery in areas with apoptotic and necrotic cellular damage. Murine fibroblast NIH3T3 cells treated with water-soluble nacre also demonstrated augmented proliferation and collagen production. The researchers cited the restoration of angiogenesis and fibroblast activity as the primary benefits of water-soluble nacre, suggesting its potential as a wound therapy, preferable to powdered nacre due to better biocompatibility with less discomfort.9
The next year, Li et al. found that mother of pearl extract promoted cell migration of fibroblasts in cell culture, demonstrating its potential as a wound healing model.7In 2019, Chen et al. studied the effects of pearl powders of varying particle sizes to treat wounds in vitro and in vivo. They found that micro- and nanosized pearl powders augmented proliferation and migration of skin cells and shortened wound closure time. All powders also improved the biomechanical strength of healed skin, enhanced collagen formation and deposition, and expanded cutaneous angiogenesis, with nanoscale pearl powder displaying greatest efficiency.4
Skin tone and atopic dermatitis
In 2000, Lopez et al. implanted powdered nacre (mother of pearl derived from Pinctada maxima), which can promote and regulate bone-forming cells, into rat dermis to evaluate its effects on skin fibroblasts. They noted that the implant yielded well-vascularized tissue and improved extracellular matrix production, synthesis of substances involved in cellular adhesion and communication, and tissue regeneration (such as collagen types I and III). The investigators concluded that the powdered nacre contributed to the conditions necessary for improved skin tone and proper physiologic functioning of the skin.10
Rousseau et al. extracted lipids from the nacre of the oyster P. margaritifera to test on artificially dehydrated skin explants with the intention of developing new treatments for atopic dermatitis. The researchers determined that the lipids spurred a reconstitution of the intercellular material of the stratum corneum, concluding that new products to treat atopic dermatitis might be based on the signaling activity of nacre lipids.11
Antifibrotic and anti-inflammatory activity
A 2015 study by Yang et al. showed that a room-temperature superextraction system to yield the main active constituents of pearl was successful in enhancing their anti-inflammatory and antiapoptotic activity in human keratinocyte cells (HaCaT) exposed to low-dose UVB. The investigators combined pearl extract and poly (gamma-glutamic acid) hydrogels and observed reductions in inflammation and apoptosis of HaCaT cells. They concluded that a marketed pearl extract may be able to suppress radiation dermatitis present in keratinocytes.12
Two years later, Latire et al. used human dermal fibroblasts in primary culture to assess the potential biological activities of the matrix macromolecular components extracted from the shells of two edible mollusks (the blue mussel Mytilus edulis and the Pacific oyster Crassostrea gigas). The investigators found that both extracts influenced metabolic functions of the cells and reduced type I collagen levels, with an associated rise in matrix metalloproteinase-1 activity. Given their findings implying the effectiveness of the extracts in facilitating the catabolic pathway of human dermal fibroblasts, the authors suggest that these shell matrices present the potential for use in treating fibrosis, especially for scleroderma.6
Antioxidant and antiaging activity
Shao et al. demonstrated 10 years ago that pearl powder provides a moisturizing effect on the skin, with ultramicro pearl powder delivering a more robust moisturizing result than water-soluble pearl powder. These two types of pearl powder, along with another one tested (ultranano pearl powder), also significantly diminished the activation of tyrosinase and free radicals. Water-soluble pearl powder did not perform as well as the other two formulations in free radical scavenging. The investigators suggested that their results support the use of pearl powder to combat aging and enhance beauty, and could be used in the clinical setting.13
In 2017, Yang et al. reported on the in vitro antihemolytic and antioxidant activity of pearl powder in shielding human erythrocytes against 2,2’-azobis(2-amidinopropane) dihydrochloride–induced oxidative damage to membrane proteins/lipids. The researchers contend that the strong antioxidant qualities of pearl powder could be applied to prevent or protect against various diseases resulting from free radical damage.2
Human trials: Antioxidant, antiaging, skin appearance
Chiu et al. studied the antioxidant activity of various pearl powder extracts in a randomized, placebo-controlled trial in 2018. They also investigated the life span–prolonging effects of the powders using wild-type Caenorhabditis elegans. Twenty healthy middle-aged subjects were separated into two groups (experimental and placebo), with 3 g of pearl powder administered in capsules to the former and 3 g of placebo to the latter over 8 weeks. Blood samples taken at the beginning and every 2 weeks during the trial and in the 10th week revealed maximum antioxidant activity of the pearl powder and prolongation of C. elegans lifespan by 18.87%. Subjects using pearl powder demonstrated significant increases in total antioxidant capacity, thiols, glutathione, and enzymic antioxidant activity, along with notably inhibited lipid peroxidation products. The investigators concluded that pearl powder extract acted as a potent antioxidant and its use may be warranted to treat degenerative conditions related to aging.3
A recent study of the perception of blue light on Korean women’s faces using blue pearl pigment revealed that the pigment does indeed elicit the perception of the blue-light effect, notably transparency and gloss, which is particularly valued in Korea.14
Conclusion
The use of mother of pearl and pearl powder in traditional Chinese medicine and as a cosmetic and food additive has a rich and lengthy history. Contemporary research clearly suggests interesting avenues for further investigation and some promising results. Much more research is necessary, though, to delineate the potential roles of pearl powder in the skin care arsenal.
Dr. Baumann is a private practice dermatologist, researcher, author, and entrepreneur who practices in Miami. She founded the Cosmetic Dermatology Center at the University of Miami in 1997. Dr. Baumann wrote two textbooks: “Cosmetic Dermatology: Principles and Practice” (New York: McGraw-Hill, 2002), and “Cosmeceuticals and Cosmetic Ingredients” (New York: McGraw-Hill, 2014), and a New York Times Best Sellers book for consumers, “The Skin Type Solution” (New York: Bantam Dell, 2006). Dr. Baumann has received funding for advisory boards and/or clinical research trials from Allergan, Evolus, Galderma, and Revance. She is the founder and CEO of Skin Type Solutions Franchise Systems. Write to her at dermnews@mdedge.com
References
1. Zhang J et al. J Sep Sci. 2015 May;38(9):1552-60.
2. Yang HL et al. J Food Drug Anal. 2017 Oct;25(4):898-907.
3. Chiu HF et al. J Food Drug Anal. 2018 Jan;26(1):309-17.
4. Chen X et al. Drug Dev Ind Pharm. 2019 Jun;45(6):1009-16.
5. Nagai K. Zoolog Sci. 2013 Oct;30(10):783-93.
6. Latire T et al. Cytotechnology. 2017 Oct;69(5):815-29.
7. Li YC et al. Pharm Biol. 2013 Mar;51(3):289-97.
8. Jian-Ping D et al. Pharm Biol. 2010 Feb;48(2):122-7.
9. Lee K et al. Mol Biol Rep. 2012 Mar;39(3):3211-8.
10. Lopez E et al. Tissue Cell. 2000 Feb;32(1):95-101.
11. Rousseau M et al. Comp Biochem Physiol B Biochem Mol Biol. 2006 Sep;145(1):1-9.
12. Yang YL et al. Biomed Mater Eng. 2015;26 Suppl 1:S139-45.
13. Shao DZ et al. J Cosmet Sci. 2010 Mar-Apr;61(2):133-45.
14. Lee M et al. Skin Res Technol. 2020 Jan;26(1):76-80.
Expert discusses her approach to using systemic agents in children and adolescents with severe skin disease
In the clinical opinion of Kaiane A. Habeshian, MD, dermatologists shouldn’t think twice about using systemic agents in pediatric patients with severe dermatologic diseases.
“By the time patients come to us pediatric dermatologists, they have been treated by multiple other doctors, and are frustrated,” Dr. Habeshian said during a virtual meeting held by the George Washington University department of dermatology. “Childhood eczema affects not only patients, but the whole family. For instance, if the child is not sleeping due to itch, their parents are probably not sleeping, either. Parental well-being and workplace productivity are affected, and finances are affected.”
Only a limited number of medications are Food and Drug Administration approved in pediatric patients for common dermatologic indications. These include dupilumab for atopic dermatitis (AD), etanercept and ustekinumab for psoriasis, adalimumab for hidradenitis suppurativa, and omalizumab for chronic idiopathic urticaria. “The approvals are mainly for the adolescent age group, except for etanercept, which is approved at the age of 4 years and above,” said Dr. Habeshian of the department of dermatology at Children’s National Hospital, Washington.
. “These agents are approved for other indications in infants and have many years of data to describe their use in these other conditions, although comprehensive randomized, controlled studies in pediatric patients for dermatologic conditions are lacking,” she said. “What’s in clinical trials for pediatric skin disease? There are multiple ongoing clinical studies of biologic agents in pediatric dermatology, mainly for psoriasis and also for dupilumab in younger patients, as well as a JAK [Janus kinase] inhibitor for alopecia areata.”
Dr. Habeshian noted that while some clinicians may have a knee-jerk reaction to go straight to dupilumab, which was approved in March of 2019 for adolescents with moderate to severe AD, that agent is not currently approved for the most sizable pediatric population with this condition – those under 12 years of age. “FDA approval is important in part because it helps establish safety and optimal dosing, which is often different and weight based in children,” she said. “In addition, FDA approval significantly impacts access to these newer, more expensive medications.”
Speaking from her experience treating patients in the DC/Maryland/Virginia area, Medicaid has consistently denied dupilumab coverage in children under age 12, “even in severe eczema that is suboptimally controlled with both methotrexate and cyclosporine, despite multiple levels of appeal, including letters of medical necessity and peer-to-peer evaluation,” she said. “This can vary across the country among states. However, dupilumab has been completely unattainable in those under 12 in our practice.”
When dupilumab is approved, most insurers first require step therapy with off-label agents for at least 3 months, as well as documented failure of topical corticosteroids, calcineurin inhibitors, crisaborole ointment, and phototherapy (if done). “It’s important to document an objective measure of severity at the very first visit with the SCORAD [scoring atopic dermatitis] or IGA [investigator global assessment],” she said. “Often, that is required if there is any hope for coverage. A familiarity with these requirements is often acquired through trial and error, and may change over time. This can lead to many delays in getting patients these treatments.” Additional information to consider documenting include the disease impact on quality of life, sleep, and school attendance, any hospitalizations for AD flares or secondary infections, and comorbid disease such as asthma.
Meanwhile, dupilumab is under priority review for children aged 6-11 years with moderate to severe AD, with a target action date of May 26, 2020. “It’s unclear how recent events [with the COVID-19 pandemic] will impact that, but there is something to look forward to, and give us hope for our patients,” she said.
Typically, Dr. Habeshian starts her pediatric patients with moderate to severe AD on methotrexate, which she characterized as “a time-tested, affordable, and very accessible option. It requires a little bit less monitoring upon initiation than cyclosporine, and it can be used for longer periods of time before weaning is required.”
In cases when disease is severe or intolerable, she often starts methotrexate and cyclosporine together. “I will usually start right at the 0.5 mg/kg per week rather than titrating up, because this maximizes the response and reduces the amount of blood work needed, unless they have an underlying risk factor for GI distress, or obese patients who are at increased risk for LFT [liver function test] elevation,” she noted. “Patients will note some improvement as early as 2 weeks on methotrexate, but I counsel them to expect 4-6 weeks for maximum improvement. We do not do a test dose of methotrexate at our institution. If there is a slight LFT elevation upon checking labs, ensure that the labs were done at least 4-6 days after the dose, because transient LFT dose elevations are common in 3-4 days.”
GI distress is by far the most common clinical side effect of methotrexate. “We do not do much intramuscular injection of methotrexate, so we rely a lot on folic acid, which reduces the risk of GI distress and elevated LFTs without reducing efficacy,” she said. “We recommend daily folic acid for simplicity, or folic acid 6 days per week.”
Dr. Habeshian said that many pediatric patients can swallow the 2.5 mg tablets of methotrexate “because they’re quite small, and most patients don’t have a problem taking the methotrexate when it’s crushed and mixed with food such as apple sauce or pudding. However, it is critical to discuss proper handling to avoid lung toxicity.” This includes placing the pills in a plastic bag prior to crushing, avoiding inhalation, and avoiding handling near pregnant women and pets, she noted. In addition, she said, “in adolescents, we need to consider the teratogenicity of methotrexate, as well as the possibility of alcohol consumption worsening liver complications. If I prescribe methotrexate in patients of childbearing age, I will counsel them extensively regarding the risk of fetal death and birth defects. If needed, I will start combined oral contraceptives. Ultimately, I’m willing to use these medicines safely, with significant counseling.”
When addressing the risk of methotrexate overdose, she reminds parents to store the medication in a safe place, out of the reach of children. “Patients are at the highest risk of overdose complications if they are given the medication multiple days in a row rather than a one-time, single high dose,” she said. “The literature suggests that one-time overdoses of methotrexate – deliberate or accidental – are unlikely to cause acute bone marrow suppression or hepatitis. This is probably because GI absorption of methotrexate reaches a saturation point, and the kidneys passively and actively excrete the medication at quite a rapid pace so that the methotrexate is often undetectable in the blood at 24 hours post ingestion. I do prescribe a limited supply to help prevent accidental overdoses. In part, this is because if the patient is receiving the medication daily, they’ll run out very quickly, and it will come the family’s attention and to your attention that it’s not being administered correctly.”
Another treatment option to consider for cases of moderate to severe AD is cyclosporine, “which works extremely quickly,” Dr. Habeshian said. “It is very good to rapidly control severe disease while methotrexate or other modes of treatment kick in. It’s best used as a bridge, given the risks of renal damage with long-term use. I like to limit its use to 6 months.”
Cyclosporine comes in two formulations: a modified oral formulation and a nonmodified oral formulation. The modified formulation is absorbed much better than the unmodified formulation. “We start at 5 mg/kg divided b.i.d., which is higher than the recommended dosing for dermatologic conditions in adults,” she said. “This is because children may not absorb the medication as well and may have improved renal clearance. Higher doses may be needed to achieve the desirable effect. In contrast to methotrexate, cyclosporine is available in a capsule, so it cannot be crushed.”
The choice of medication for psoriasis is generally guided by insurance step therapy requirements and is limited in the pediatric population (new guidelines on the care of pediatric psoriasis patients can be found at J Am Acad Dermatol 2020; 82[1]:161-201). In Dr. Habeshian’s experience, methotrexate is the go-to for most patients. “It treats concomitant psoriatic arthritis and can be used as monotherapy or combined with biologics,” she said. “Cyclosporine is useful for erythrodermic, pustular, and severe plaque psoriasis as a bridge. Other options include etanercept weekly in patients age 4-17 years and ustekinumab weekly dosing in patients age 12-17 years.”
Acitretin can be a useful adjunct for younger patients who are unable to obtain biologic agents. “It is most useful in widespread guttate and pustular psoriasis, but can be used be used in plaque psoriasis as well,” Dr. Habeshian said. “It is usually dosed as 0.1-1 mg/kg per day. Improvement in plaque disease is generally seen in 2-3 months of therapy, so it has a slow onset, whereas improvement in pustular psoriasis is seen within 3 weeks.” The most common side effects are dry skin and mucous membranes, while an important consideration is the potential for inducing premature bone toxicity. “It is thought that the risk is relatively low if the daily and total doses are kept low,” she said. “There is no consensus for monitoring bone health. Some clinicians will consider radiography periodically.”
Dr. Habeshian concluded her talk by noting that clinicians should give vaccinations/boosters before starting systemic therapy in young children. “The safety and efficacy of live immunization administered to children on biologics is not known,” she said. “Therefore, if live vaccination is needed, it’s generally recommended to postpone initiating biologic treatment.” The MMR and varicella vaccines are given at 12-15 months of life, with a booster at 4-6 years. The varicella vaccine should be given at least 6 weeks before starting immunosuppressive therapy, and the MMR vaccine at least 4 weeks before starting therapy.
The virtual meeting included presentations that had been slated for the annual meeting of the American Academy of Dermatology, which was canceled because of the COVID-19 pandemic. Dr. Habeshian reported having no disclosures.
In the clinical opinion of Kaiane A. Habeshian, MD, dermatologists shouldn’t think twice about using systemic agents in pediatric patients with severe dermatologic diseases.
“By the time patients come to us pediatric dermatologists, they have been treated by multiple other doctors, and are frustrated,” Dr. Habeshian said during a virtual meeting held by the George Washington University department of dermatology. “Childhood eczema affects not only patients, but the whole family. For instance, if the child is not sleeping due to itch, their parents are probably not sleeping, either. Parental well-being and workplace productivity are affected, and finances are affected.”
Only a limited number of medications are Food and Drug Administration approved in pediatric patients for common dermatologic indications. These include dupilumab for atopic dermatitis (AD), etanercept and ustekinumab for psoriasis, adalimumab for hidradenitis suppurativa, and omalizumab for chronic idiopathic urticaria. “The approvals are mainly for the adolescent age group, except for etanercept, which is approved at the age of 4 years and above,” said Dr. Habeshian of the department of dermatology at Children’s National Hospital, Washington.
. “These agents are approved for other indications in infants and have many years of data to describe their use in these other conditions, although comprehensive randomized, controlled studies in pediatric patients for dermatologic conditions are lacking,” she said. “What’s in clinical trials for pediatric skin disease? There are multiple ongoing clinical studies of biologic agents in pediatric dermatology, mainly for psoriasis and also for dupilumab in younger patients, as well as a JAK [Janus kinase] inhibitor for alopecia areata.”
Dr. Habeshian noted that while some clinicians may have a knee-jerk reaction to go straight to dupilumab, which was approved in March of 2019 for adolescents with moderate to severe AD, that agent is not currently approved for the most sizable pediatric population with this condition – those under 12 years of age. “FDA approval is important in part because it helps establish safety and optimal dosing, which is often different and weight based in children,” she said. “In addition, FDA approval significantly impacts access to these newer, more expensive medications.”
Speaking from her experience treating patients in the DC/Maryland/Virginia area, Medicaid has consistently denied dupilumab coverage in children under age 12, “even in severe eczema that is suboptimally controlled with both methotrexate and cyclosporine, despite multiple levels of appeal, including letters of medical necessity and peer-to-peer evaluation,” she said. “This can vary across the country among states. However, dupilumab has been completely unattainable in those under 12 in our practice.”
When dupilumab is approved, most insurers first require step therapy with off-label agents for at least 3 months, as well as documented failure of topical corticosteroids, calcineurin inhibitors, crisaborole ointment, and phototherapy (if done). “It’s important to document an objective measure of severity at the very first visit with the SCORAD [scoring atopic dermatitis] or IGA [investigator global assessment],” she said. “Often, that is required if there is any hope for coverage. A familiarity with these requirements is often acquired through trial and error, and may change over time. This can lead to many delays in getting patients these treatments.” Additional information to consider documenting include the disease impact on quality of life, sleep, and school attendance, any hospitalizations for AD flares or secondary infections, and comorbid disease such as asthma.
Meanwhile, dupilumab is under priority review for children aged 6-11 years with moderate to severe AD, with a target action date of May 26, 2020. “It’s unclear how recent events [with the COVID-19 pandemic] will impact that, but there is something to look forward to, and give us hope for our patients,” she said.
Typically, Dr. Habeshian starts her pediatric patients with moderate to severe AD on methotrexate, which she characterized as “a time-tested, affordable, and very accessible option. It requires a little bit less monitoring upon initiation than cyclosporine, and it can be used for longer periods of time before weaning is required.”
In cases when disease is severe or intolerable, she often starts methotrexate and cyclosporine together. “I will usually start right at the 0.5 mg/kg per week rather than titrating up, because this maximizes the response and reduces the amount of blood work needed, unless they have an underlying risk factor for GI distress, or obese patients who are at increased risk for LFT [liver function test] elevation,” she noted. “Patients will note some improvement as early as 2 weeks on methotrexate, but I counsel them to expect 4-6 weeks for maximum improvement. We do not do a test dose of methotrexate at our institution. If there is a slight LFT elevation upon checking labs, ensure that the labs were done at least 4-6 days after the dose, because transient LFT dose elevations are common in 3-4 days.”
GI distress is by far the most common clinical side effect of methotrexate. “We do not do much intramuscular injection of methotrexate, so we rely a lot on folic acid, which reduces the risk of GI distress and elevated LFTs without reducing efficacy,” she said. “We recommend daily folic acid for simplicity, or folic acid 6 days per week.”
Dr. Habeshian said that many pediatric patients can swallow the 2.5 mg tablets of methotrexate “because they’re quite small, and most patients don’t have a problem taking the methotrexate when it’s crushed and mixed with food such as apple sauce or pudding. However, it is critical to discuss proper handling to avoid lung toxicity.” This includes placing the pills in a plastic bag prior to crushing, avoiding inhalation, and avoiding handling near pregnant women and pets, she noted. In addition, she said, “in adolescents, we need to consider the teratogenicity of methotrexate, as well as the possibility of alcohol consumption worsening liver complications. If I prescribe methotrexate in patients of childbearing age, I will counsel them extensively regarding the risk of fetal death and birth defects. If needed, I will start combined oral contraceptives. Ultimately, I’m willing to use these medicines safely, with significant counseling.”
When addressing the risk of methotrexate overdose, she reminds parents to store the medication in a safe place, out of the reach of children. “Patients are at the highest risk of overdose complications if they are given the medication multiple days in a row rather than a one-time, single high dose,” she said. “The literature suggests that one-time overdoses of methotrexate – deliberate or accidental – are unlikely to cause acute bone marrow suppression or hepatitis. This is probably because GI absorption of methotrexate reaches a saturation point, and the kidneys passively and actively excrete the medication at quite a rapid pace so that the methotrexate is often undetectable in the blood at 24 hours post ingestion. I do prescribe a limited supply to help prevent accidental overdoses. In part, this is because if the patient is receiving the medication daily, they’ll run out very quickly, and it will come the family’s attention and to your attention that it’s not being administered correctly.”
Another treatment option to consider for cases of moderate to severe AD is cyclosporine, “which works extremely quickly,” Dr. Habeshian said. “It is very good to rapidly control severe disease while methotrexate or other modes of treatment kick in. It’s best used as a bridge, given the risks of renal damage with long-term use. I like to limit its use to 6 months.”
Cyclosporine comes in two formulations: a modified oral formulation and a nonmodified oral formulation. The modified formulation is absorbed much better than the unmodified formulation. “We start at 5 mg/kg divided b.i.d., which is higher than the recommended dosing for dermatologic conditions in adults,” she said. “This is because children may not absorb the medication as well and may have improved renal clearance. Higher doses may be needed to achieve the desirable effect. In contrast to methotrexate, cyclosporine is available in a capsule, so it cannot be crushed.”
The choice of medication for psoriasis is generally guided by insurance step therapy requirements and is limited in the pediatric population (new guidelines on the care of pediatric psoriasis patients can be found at J Am Acad Dermatol 2020; 82[1]:161-201). In Dr. Habeshian’s experience, methotrexate is the go-to for most patients. “It treats concomitant psoriatic arthritis and can be used as monotherapy or combined with biologics,” she said. “Cyclosporine is useful for erythrodermic, pustular, and severe plaque psoriasis as a bridge. Other options include etanercept weekly in patients age 4-17 years and ustekinumab weekly dosing in patients age 12-17 years.”
Acitretin can be a useful adjunct for younger patients who are unable to obtain biologic agents. “It is most useful in widespread guttate and pustular psoriasis, but can be used be used in plaque psoriasis as well,” Dr. Habeshian said. “It is usually dosed as 0.1-1 mg/kg per day. Improvement in plaque disease is generally seen in 2-3 months of therapy, so it has a slow onset, whereas improvement in pustular psoriasis is seen within 3 weeks.” The most common side effects are dry skin and mucous membranes, while an important consideration is the potential for inducing premature bone toxicity. “It is thought that the risk is relatively low if the daily and total doses are kept low,” she said. “There is no consensus for monitoring bone health. Some clinicians will consider radiography periodically.”
Dr. Habeshian concluded her talk by noting that clinicians should give vaccinations/boosters before starting systemic therapy in young children. “The safety and efficacy of live immunization administered to children on biologics is not known,” she said. “Therefore, if live vaccination is needed, it’s generally recommended to postpone initiating biologic treatment.” The MMR and varicella vaccines are given at 12-15 months of life, with a booster at 4-6 years. The varicella vaccine should be given at least 6 weeks before starting immunosuppressive therapy, and the MMR vaccine at least 4 weeks before starting therapy.
The virtual meeting included presentations that had been slated for the annual meeting of the American Academy of Dermatology, which was canceled because of the COVID-19 pandemic. Dr. Habeshian reported having no disclosures.
In the clinical opinion of Kaiane A. Habeshian, MD, dermatologists shouldn’t think twice about using systemic agents in pediatric patients with severe dermatologic diseases.
“By the time patients come to us pediatric dermatologists, they have been treated by multiple other doctors, and are frustrated,” Dr. Habeshian said during a virtual meeting held by the George Washington University department of dermatology. “Childhood eczema affects not only patients, but the whole family. For instance, if the child is not sleeping due to itch, their parents are probably not sleeping, either. Parental well-being and workplace productivity are affected, and finances are affected.”
Only a limited number of medications are Food and Drug Administration approved in pediatric patients for common dermatologic indications. These include dupilumab for atopic dermatitis (AD), etanercept and ustekinumab for psoriasis, adalimumab for hidradenitis suppurativa, and omalizumab for chronic idiopathic urticaria. “The approvals are mainly for the adolescent age group, except for etanercept, which is approved at the age of 4 years and above,” said Dr. Habeshian of the department of dermatology at Children’s National Hospital, Washington.
. “These agents are approved for other indications in infants and have many years of data to describe their use in these other conditions, although comprehensive randomized, controlled studies in pediatric patients for dermatologic conditions are lacking,” she said. “What’s in clinical trials for pediatric skin disease? There are multiple ongoing clinical studies of biologic agents in pediatric dermatology, mainly for psoriasis and also for dupilumab in younger patients, as well as a JAK [Janus kinase] inhibitor for alopecia areata.”
Dr. Habeshian noted that while some clinicians may have a knee-jerk reaction to go straight to dupilumab, which was approved in March of 2019 for adolescents with moderate to severe AD, that agent is not currently approved for the most sizable pediatric population with this condition – those under 12 years of age. “FDA approval is important in part because it helps establish safety and optimal dosing, which is often different and weight based in children,” she said. “In addition, FDA approval significantly impacts access to these newer, more expensive medications.”
Speaking from her experience treating patients in the DC/Maryland/Virginia area, Medicaid has consistently denied dupilumab coverage in children under age 12, “even in severe eczema that is suboptimally controlled with both methotrexate and cyclosporine, despite multiple levels of appeal, including letters of medical necessity and peer-to-peer evaluation,” she said. “This can vary across the country among states. However, dupilumab has been completely unattainable in those under 12 in our practice.”
When dupilumab is approved, most insurers first require step therapy with off-label agents for at least 3 months, as well as documented failure of topical corticosteroids, calcineurin inhibitors, crisaborole ointment, and phototherapy (if done). “It’s important to document an objective measure of severity at the very first visit with the SCORAD [scoring atopic dermatitis] or IGA [investigator global assessment],” she said. “Often, that is required if there is any hope for coverage. A familiarity with these requirements is often acquired through trial and error, and may change over time. This can lead to many delays in getting patients these treatments.” Additional information to consider documenting include the disease impact on quality of life, sleep, and school attendance, any hospitalizations for AD flares or secondary infections, and comorbid disease such as asthma.
Meanwhile, dupilumab is under priority review for children aged 6-11 years with moderate to severe AD, with a target action date of May 26, 2020. “It’s unclear how recent events [with the COVID-19 pandemic] will impact that, but there is something to look forward to, and give us hope for our patients,” she said.
Typically, Dr. Habeshian starts her pediatric patients with moderate to severe AD on methotrexate, which she characterized as “a time-tested, affordable, and very accessible option. It requires a little bit less monitoring upon initiation than cyclosporine, and it can be used for longer periods of time before weaning is required.”
In cases when disease is severe or intolerable, she often starts methotrexate and cyclosporine together. “I will usually start right at the 0.5 mg/kg per week rather than titrating up, because this maximizes the response and reduces the amount of blood work needed, unless they have an underlying risk factor for GI distress, or obese patients who are at increased risk for LFT [liver function test] elevation,” she noted. “Patients will note some improvement as early as 2 weeks on methotrexate, but I counsel them to expect 4-6 weeks for maximum improvement. We do not do a test dose of methotrexate at our institution. If there is a slight LFT elevation upon checking labs, ensure that the labs were done at least 4-6 days after the dose, because transient LFT dose elevations are common in 3-4 days.”
GI distress is by far the most common clinical side effect of methotrexate. “We do not do much intramuscular injection of methotrexate, so we rely a lot on folic acid, which reduces the risk of GI distress and elevated LFTs without reducing efficacy,” she said. “We recommend daily folic acid for simplicity, or folic acid 6 days per week.”
Dr. Habeshian said that many pediatric patients can swallow the 2.5 mg tablets of methotrexate “because they’re quite small, and most patients don’t have a problem taking the methotrexate when it’s crushed and mixed with food such as apple sauce or pudding. However, it is critical to discuss proper handling to avoid lung toxicity.” This includes placing the pills in a plastic bag prior to crushing, avoiding inhalation, and avoiding handling near pregnant women and pets, she noted. In addition, she said, “in adolescents, we need to consider the teratogenicity of methotrexate, as well as the possibility of alcohol consumption worsening liver complications. If I prescribe methotrexate in patients of childbearing age, I will counsel them extensively regarding the risk of fetal death and birth defects. If needed, I will start combined oral contraceptives. Ultimately, I’m willing to use these medicines safely, with significant counseling.”
When addressing the risk of methotrexate overdose, she reminds parents to store the medication in a safe place, out of the reach of children. “Patients are at the highest risk of overdose complications if they are given the medication multiple days in a row rather than a one-time, single high dose,” she said. “The literature suggests that one-time overdoses of methotrexate – deliberate or accidental – are unlikely to cause acute bone marrow suppression or hepatitis. This is probably because GI absorption of methotrexate reaches a saturation point, and the kidneys passively and actively excrete the medication at quite a rapid pace so that the methotrexate is often undetectable in the blood at 24 hours post ingestion. I do prescribe a limited supply to help prevent accidental overdoses. In part, this is because if the patient is receiving the medication daily, they’ll run out very quickly, and it will come the family’s attention and to your attention that it’s not being administered correctly.”
Another treatment option to consider for cases of moderate to severe AD is cyclosporine, “which works extremely quickly,” Dr. Habeshian said. “It is very good to rapidly control severe disease while methotrexate or other modes of treatment kick in. It’s best used as a bridge, given the risks of renal damage with long-term use. I like to limit its use to 6 months.”
Cyclosporine comes in two formulations: a modified oral formulation and a nonmodified oral formulation. The modified formulation is absorbed much better than the unmodified formulation. “We start at 5 mg/kg divided b.i.d., which is higher than the recommended dosing for dermatologic conditions in adults,” she said. “This is because children may not absorb the medication as well and may have improved renal clearance. Higher doses may be needed to achieve the desirable effect. In contrast to methotrexate, cyclosporine is available in a capsule, so it cannot be crushed.”
The choice of medication for psoriasis is generally guided by insurance step therapy requirements and is limited in the pediatric population (new guidelines on the care of pediatric psoriasis patients can be found at J Am Acad Dermatol 2020; 82[1]:161-201). In Dr. Habeshian’s experience, methotrexate is the go-to for most patients. “It treats concomitant psoriatic arthritis and can be used as monotherapy or combined with biologics,” she said. “Cyclosporine is useful for erythrodermic, pustular, and severe plaque psoriasis as a bridge. Other options include etanercept weekly in patients age 4-17 years and ustekinumab weekly dosing in patients age 12-17 years.”
Acitretin can be a useful adjunct for younger patients who are unable to obtain biologic agents. “It is most useful in widespread guttate and pustular psoriasis, but can be used be used in plaque psoriasis as well,” Dr. Habeshian said. “It is usually dosed as 0.1-1 mg/kg per day. Improvement in plaque disease is generally seen in 2-3 months of therapy, so it has a slow onset, whereas improvement in pustular psoriasis is seen within 3 weeks.” The most common side effects are dry skin and mucous membranes, while an important consideration is the potential for inducing premature bone toxicity. “It is thought that the risk is relatively low if the daily and total doses are kept low,” she said. “There is no consensus for monitoring bone health. Some clinicians will consider radiography periodically.”
Dr. Habeshian concluded her talk by noting that clinicians should give vaccinations/boosters before starting systemic therapy in young children. “The safety and efficacy of live immunization administered to children on biologics is not known,” she said. “Therefore, if live vaccination is needed, it’s generally recommended to postpone initiating biologic treatment.” The MMR and varicella vaccines are given at 12-15 months of life, with a booster at 4-6 years. The varicella vaccine should be given at least 6 weeks before starting immunosuppressive therapy, and the MMR vaccine at least 4 weeks before starting therapy.
The virtual meeting included presentations that had been slated for the annual meeting of the American Academy of Dermatology, which was canceled because of the COVID-19 pandemic. Dr. Habeshian reported having no disclosures.
Dupilumab hits the mark for severe AD in younger children
The monoclonal antibody , according to new clinical trial results.
In a cohort of children with severe AD, 33% achieved clear or nearly clear skin after 16 weeks of treatment with every 4-week dosing of the injectable medication, while 30% also achieved that mark when receiving a weight-based dose every 2 weeks. Both groups had results that were significantly better than those receiving placebo, with 11% of these children had clear or nearly clear skin by 16 weeks of dupilumab (Dupixent) therapy (P less than .0001 for both therapy arms versus placebo).
“Dupilumab with a topical corticosteroid showed clinically meaningful and statistically significant improvement in the atopic dermatitis signs and symptoms in children aged 6 to less than 12 years of age with severe atopic dermatitis,” said Amy Paller, MD, the Walter J. Hamlin professor and chair of the department of dermatology at Northwestern University, Chicago, presenting the results at the Revolutionizing Atopic Dermatitis virtual symposium. Portions of the conference, which has been rescheduled to December 2020, in Chicago, were presented virtually because of the COVID-19 pandemic.
The phase 3 trial of subcutaneously injected dupilumab for atopic dermatitis, dubbed LIBERTY AD PEDS, included children aged 6-11 years with severe AD. The study’s primary endpoint was the proportion of patients achieving a score of 0 or 1 (clear or almost clear skin) on the Investigator’s Global Assessment (IGA) scale by study week 16.
For the purposes of reporting results to the European Medicines Agency, the investigators added a coprimary endpoint of patients reaching 75% clearing on the Eczema Area and Severity Index (EASI-75) by week 16.
The randomized, double-blind, placebo-controlled trial enrolled 367 children with IGA scores of 4, denoting severe AD. The EASI score had to be at least 21 and patients had to endorse peak pruritus of at least 4 on a 0-10 numeric rating scale; body surface involvement had to be at least 15%. Patients went through a washout period of any systemic therapies before beginning the trial, which randomized patients 1:1:1 to receive placebo, dupilumab 300 mg every 4 weeks, or dupilumab every 2 weeks with weight-dependent dosing. All participants were also permitted topical corticosteroids.
Patients were an average of aged 8 years, about half were female, and about two-thirds were white. Most participants had developed AD within their first year of life. Patients were about evenly divided between weighing over and under 30 kg, which was the cutoff for 100 mcg versus 200 mcg dupilumab for the every-2-week dosing group.
Over 90% of patients had other atopic comorbidities, and the mean EASI score was about 38 with average weekly peak pruritus averaging 7.8 on the numeric rating scale.
“When we’re talking about how severe this population is, it’s interesting to note that about 30 to 35% were all that had been previously treated with either systemic steroids or some systemic nonsteroidal immunosuppressants,” Dr. Paller pointed out. “I think that reflects the fact that so many of these very severely affected children are not put on a systemic therapy, but are still staying on topical therapies to try to control their disease.”
Looking at the proportion of patients reaching EASI-75, both dosing strategies for dupilumab out-performed placebo, with 70% of the every 4-week group and 67% of the every 2-week group reaching EASI-75 at 16 weeks, compared with 27% of those on placebo (P less than .0001 for both active arms). “These differences were seen very early on; by 2 weeks already, we can see that we’re starting to see a difference in both of these arms,” noted Dr. Paller, adding that the difference was statistically significant by 4 weeks into the study.
The overall group of dupilumab participants saw their EASI scores drop by about 80%, while those taking placebo saw a 49% drop in EASI scores.
For the group of participants weighing less than 30 kg, the every 4-week strategy resulted in better clearing as measured by both IGA and EASI-75. This effect wasn’t seen for heavier patients. Trough dupilumab concentrations at 16 weeks were higher for lighter patients with every 4-week dosing and for heavier patients with the biweekly strategy, noted Dr. Paller.
In terms of itch, 60% to 68% of participants receiving dupilumab had a drop of at least 3 points in peak pruritus on the numeric rating scale, compared with 21% of those receiving placebo (P less than .001), while about half of the dupilumab groups and 12% of the placebo group saw pruritus improvements of 4 points or more (P less than .001). Pruritus improved early in the active arms of the study, becoming statistically significant at the 2 to 4 week range.
Treatment-emergent adverse events were numerically higher in patients in the placebo group, including infections and adjudicated skin infections. Conjunctivitis occurred more frequently in the dupilumab group, as did injection-site reactions.
“Overall, dupilumab was well tolerated, and data were consistent with the known dupilumab safety profile observed in adults and adolescents,” Dr. Paller said.
Dupilumab has been approved by the Food and Drug Administration to treat moderate to severe AD in those aged 12 years and older whose disease can’t be adequately controlled with topical prescription medications, or when those treatments are not advisable.
The fully human monoclonal antibody blocks a shared receptor component for interleukin-4 and interleukin-13, which contribute to inflammation in AD, as well as asthma, chronic rhinosinusitis with nasal polyps, and eosinophilic esophagitis.
Dr. Paller reported receiving support from multiple pharmaceutical companies including Sanofi and Regeneron Pharmaceuticals, which sponsored the study.
The monoclonal antibody , according to new clinical trial results.
In a cohort of children with severe AD, 33% achieved clear or nearly clear skin after 16 weeks of treatment with every 4-week dosing of the injectable medication, while 30% also achieved that mark when receiving a weight-based dose every 2 weeks. Both groups had results that were significantly better than those receiving placebo, with 11% of these children had clear or nearly clear skin by 16 weeks of dupilumab (Dupixent) therapy (P less than .0001 for both therapy arms versus placebo).
“Dupilumab with a topical corticosteroid showed clinically meaningful and statistically significant improvement in the atopic dermatitis signs and symptoms in children aged 6 to less than 12 years of age with severe atopic dermatitis,” said Amy Paller, MD, the Walter J. Hamlin professor and chair of the department of dermatology at Northwestern University, Chicago, presenting the results at the Revolutionizing Atopic Dermatitis virtual symposium. Portions of the conference, which has been rescheduled to December 2020, in Chicago, were presented virtually because of the COVID-19 pandemic.
The phase 3 trial of subcutaneously injected dupilumab for atopic dermatitis, dubbed LIBERTY AD PEDS, included children aged 6-11 years with severe AD. The study’s primary endpoint was the proportion of patients achieving a score of 0 or 1 (clear or almost clear skin) on the Investigator’s Global Assessment (IGA) scale by study week 16.
For the purposes of reporting results to the European Medicines Agency, the investigators added a coprimary endpoint of patients reaching 75% clearing on the Eczema Area and Severity Index (EASI-75) by week 16.
The randomized, double-blind, placebo-controlled trial enrolled 367 children with IGA scores of 4, denoting severe AD. The EASI score had to be at least 21 and patients had to endorse peak pruritus of at least 4 on a 0-10 numeric rating scale; body surface involvement had to be at least 15%. Patients went through a washout period of any systemic therapies before beginning the trial, which randomized patients 1:1:1 to receive placebo, dupilumab 300 mg every 4 weeks, or dupilumab every 2 weeks with weight-dependent dosing. All participants were also permitted topical corticosteroids.
Patients were an average of aged 8 years, about half were female, and about two-thirds were white. Most participants had developed AD within their first year of life. Patients were about evenly divided between weighing over and under 30 kg, which was the cutoff for 100 mcg versus 200 mcg dupilumab for the every-2-week dosing group.
Over 90% of patients had other atopic comorbidities, and the mean EASI score was about 38 with average weekly peak pruritus averaging 7.8 on the numeric rating scale.
“When we’re talking about how severe this population is, it’s interesting to note that about 30 to 35% were all that had been previously treated with either systemic steroids or some systemic nonsteroidal immunosuppressants,” Dr. Paller pointed out. “I think that reflects the fact that so many of these very severely affected children are not put on a systemic therapy, but are still staying on topical therapies to try to control their disease.”
Looking at the proportion of patients reaching EASI-75, both dosing strategies for dupilumab out-performed placebo, with 70% of the every 4-week group and 67% of the every 2-week group reaching EASI-75 at 16 weeks, compared with 27% of those on placebo (P less than .0001 for both active arms). “These differences were seen very early on; by 2 weeks already, we can see that we’re starting to see a difference in both of these arms,” noted Dr. Paller, adding that the difference was statistically significant by 4 weeks into the study.
The overall group of dupilumab participants saw their EASI scores drop by about 80%, while those taking placebo saw a 49% drop in EASI scores.
For the group of participants weighing less than 30 kg, the every 4-week strategy resulted in better clearing as measured by both IGA and EASI-75. This effect wasn’t seen for heavier patients. Trough dupilumab concentrations at 16 weeks were higher for lighter patients with every 4-week dosing and for heavier patients with the biweekly strategy, noted Dr. Paller.
In terms of itch, 60% to 68% of participants receiving dupilumab had a drop of at least 3 points in peak pruritus on the numeric rating scale, compared with 21% of those receiving placebo (P less than .001), while about half of the dupilumab groups and 12% of the placebo group saw pruritus improvements of 4 points or more (P less than .001). Pruritus improved early in the active arms of the study, becoming statistically significant at the 2 to 4 week range.
Treatment-emergent adverse events were numerically higher in patients in the placebo group, including infections and adjudicated skin infections. Conjunctivitis occurred more frequently in the dupilumab group, as did injection-site reactions.
“Overall, dupilumab was well tolerated, and data were consistent with the known dupilumab safety profile observed in adults and adolescents,” Dr. Paller said.
Dupilumab has been approved by the Food and Drug Administration to treat moderate to severe AD in those aged 12 years and older whose disease can’t be adequately controlled with topical prescription medications, or when those treatments are not advisable.
The fully human monoclonal antibody blocks a shared receptor component for interleukin-4 and interleukin-13, which contribute to inflammation in AD, as well as asthma, chronic rhinosinusitis with nasal polyps, and eosinophilic esophagitis.
Dr. Paller reported receiving support from multiple pharmaceutical companies including Sanofi and Regeneron Pharmaceuticals, which sponsored the study.
The monoclonal antibody , according to new clinical trial results.
In a cohort of children with severe AD, 33% achieved clear or nearly clear skin after 16 weeks of treatment with every 4-week dosing of the injectable medication, while 30% also achieved that mark when receiving a weight-based dose every 2 weeks. Both groups had results that were significantly better than those receiving placebo, with 11% of these children had clear or nearly clear skin by 16 weeks of dupilumab (Dupixent) therapy (P less than .0001 for both therapy arms versus placebo).
“Dupilumab with a topical corticosteroid showed clinically meaningful and statistically significant improvement in the atopic dermatitis signs and symptoms in children aged 6 to less than 12 years of age with severe atopic dermatitis,” said Amy Paller, MD, the Walter J. Hamlin professor and chair of the department of dermatology at Northwestern University, Chicago, presenting the results at the Revolutionizing Atopic Dermatitis virtual symposium. Portions of the conference, which has been rescheduled to December 2020, in Chicago, were presented virtually because of the COVID-19 pandemic.
The phase 3 trial of subcutaneously injected dupilumab for atopic dermatitis, dubbed LIBERTY AD PEDS, included children aged 6-11 years with severe AD. The study’s primary endpoint was the proportion of patients achieving a score of 0 or 1 (clear or almost clear skin) on the Investigator’s Global Assessment (IGA) scale by study week 16.
For the purposes of reporting results to the European Medicines Agency, the investigators added a coprimary endpoint of patients reaching 75% clearing on the Eczema Area and Severity Index (EASI-75) by week 16.
The randomized, double-blind, placebo-controlled trial enrolled 367 children with IGA scores of 4, denoting severe AD. The EASI score had to be at least 21 and patients had to endorse peak pruritus of at least 4 on a 0-10 numeric rating scale; body surface involvement had to be at least 15%. Patients went through a washout period of any systemic therapies before beginning the trial, which randomized patients 1:1:1 to receive placebo, dupilumab 300 mg every 4 weeks, or dupilumab every 2 weeks with weight-dependent dosing. All participants were also permitted topical corticosteroids.
Patients were an average of aged 8 years, about half were female, and about two-thirds were white. Most participants had developed AD within their first year of life. Patients were about evenly divided between weighing over and under 30 kg, which was the cutoff for 100 mcg versus 200 mcg dupilumab for the every-2-week dosing group.
Over 90% of patients had other atopic comorbidities, and the mean EASI score was about 38 with average weekly peak pruritus averaging 7.8 on the numeric rating scale.
“When we’re talking about how severe this population is, it’s interesting to note that about 30 to 35% were all that had been previously treated with either systemic steroids or some systemic nonsteroidal immunosuppressants,” Dr. Paller pointed out. “I think that reflects the fact that so many of these very severely affected children are not put on a systemic therapy, but are still staying on topical therapies to try to control their disease.”
Looking at the proportion of patients reaching EASI-75, both dosing strategies for dupilumab out-performed placebo, with 70% of the every 4-week group and 67% of the every 2-week group reaching EASI-75 at 16 weeks, compared with 27% of those on placebo (P less than .0001 for both active arms). “These differences were seen very early on; by 2 weeks already, we can see that we’re starting to see a difference in both of these arms,” noted Dr. Paller, adding that the difference was statistically significant by 4 weeks into the study.
The overall group of dupilumab participants saw their EASI scores drop by about 80%, while those taking placebo saw a 49% drop in EASI scores.
For the group of participants weighing less than 30 kg, the every 4-week strategy resulted in better clearing as measured by both IGA and EASI-75. This effect wasn’t seen for heavier patients. Trough dupilumab concentrations at 16 weeks were higher for lighter patients with every 4-week dosing and for heavier patients with the biweekly strategy, noted Dr. Paller.
In terms of itch, 60% to 68% of participants receiving dupilumab had a drop of at least 3 points in peak pruritus on the numeric rating scale, compared with 21% of those receiving placebo (P less than .001), while about half of the dupilumab groups and 12% of the placebo group saw pruritus improvements of 4 points or more (P less than .001). Pruritus improved early in the active arms of the study, becoming statistically significant at the 2 to 4 week range.
Treatment-emergent adverse events were numerically higher in patients in the placebo group, including infections and adjudicated skin infections. Conjunctivitis occurred more frequently in the dupilumab group, as did injection-site reactions.
“Overall, dupilumab was well tolerated, and data were consistent with the known dupilumab safety profile observed in adults and adolescents,” Dr. Paller said.
Dupilumab has been approved by the Food and Drug Administration to treat moderate to severe AD in those aged 12 years and older whose disease can’t be adequately controlled with topical prescription medications, or when those treatments are not advisable.
The fully human monoclonal antibody blocks a shared receptor component for interleukin-4 and interleukin-13, which contribute to inflammation in AD, as well as asthma, chronic rhinosinusitis with nasal polyps, and eosinophilic esophagitis.
Dr. Paller reported receiving support from multiple pharmaceutical companies including Sanofi and Regeneron Pharmaceuticals, which sponsored the study.
FROM REVOLUTIONIZING AD 2020
Routinely screen for depression in atopic dermatitis
Jonathan I. Silverberg, MD, PhD, declared in a video presentation during a virtual meeting held by the George Washington University department of dermatology.
The virtual meeting included presentations that had been slated for the annual meeting of the American Academy of Dermatology, which was canceled because of the COVID-19 pandemic.
Dr. Silverberg presented highlights of his recent study of depression screening rates in the National Ambulatory Medical Care Survey, an annual population-based survey by the National Center for Health Statistics. He and his coinvestigator analyzed 9,345 office visits for atopic dermatitis (AD) and 2,085 for psoriasis (Br J Dermatol. 2019 Oct 24. doi: 10.1111/bjd.18629.). The picture that emerged showed that there is much room for improvement.
“We found that depression screening rates were abysmally low in atopic dermatitis patients, with less than 2% patients being screened. There was very little difference in screening rates between patients on an advanced therapy, like systemic phototherapy or a biologic, compared to those who were just on topical therapy alone, meaning even the more severe patients aren’t being asked these questions. And no difference between dermatologists and primary care physicians,” said Dr. Silverberg, director of clinical research and contact dermatitis in the department of dermatology at George Washington University, Washington.
For Dr. Silverberg, known for his pioneering work documenting the marked yet often-underappreciated negative impact of AD on quality of life and mental health, these rock-bottom screening rates were particularly galling.
“There are very high rates of anxiety and depression amongst our patients with atopic dermatitis,” the dermatologist emphasized. “Mental health symptoms are an incredibly important domain in atopic dermatitis that we need to ask our patients about. We don’t ask enough.
“This to me is actually a very important symptom to measure. It’s not just a theoretical construct involved in understanding the burden of the disease, it’s something that’s actionable because most of these cases of mental health symptoms are reversible or modifiable with improved control of the atopic dermatitis,” he continued. “I use this as an indication to step up therapy. If a patient is clinically depressed and we believe that’s secondary to their chronic atopic dermatitis, this is a reason to step up therapy to something stronger.”
If the depressive symptoms don’t improve after stepping up the intensity of the dermatologic therapy, it’s probably time for the patient to see a mental health professional, Dr. Silverberg advised, adding, “I’m not telling every dermatology resident out there to become a psychiatrist.”
Depression and anxiety in AD: How common?
In an analysis of multiyear data from the Medical Expenditure Panel Surveys, an annual population-based project conducted by the Agency for Healthcare Research and Quality, Dr. Silverberg and a coinvestigator found that adults with AD were an adjusted 186% more likely than those without AD to screen positive for depressive symptoms on the two-item Patient Health Questionnaire (PHQ-2), with rates of 44.3% and 21.9%, respectively. The AD patients were also 500% more likely to screen positive for severe psychological distress, with a 25.9% rate of having a Kessler-6 index score of 13 or more, compared with 5.5% in adults without AD.
The rate of severe psychological distress was higher in adults with AD than in those with asthma, diabetes, hypertension, urticaria, or psoriasis, and was comparable with the rate in individuals with autoimmune disease (Ann Allergy Asthma Immunol. 2019 Aug;123[2]:179-85).
“It’s surprising when you think that the majority of the cases of atopic dermatitis in the population are mild and yet when you look at a population-based sample such as this you see a strong signal come up. It means that, with all the dilution of mild disease, the signal is still there. It emphasizes that even patients with mild disease get these depressive symptoms and psychosocial distress,” Dr. Silverberg observed.
In a separate analysis of the same national database, this time looking at Short Form-6D health utility scores – a measure of overall quality of life encompassing key domains including vitality, physical function, mental health, fatigue – adults with AD scored markedly worse than individuals with no chronic health disorders. Health utility scores were particularly low in adults with AD and comorbid symptoms of anxiety or depression, suggesting that those affective symptoms are major drivers of the demonstrably poor quality of life in adult AD (Ann Allergy Asthma Immunol. 2020 Jan;124[1]:88-9).
In the Atopic Dermatitis in America Study, Dr. Silverberg and coinvestigators cross-sectionally surveyed 2,893 adults using the seven-item Hospital Anxiety and Depression Scale anxiety (HADS-A) and depression (HADS-D) assessment instruments. Individuals with AD as determined using the modified U.K. Diagnostic Criteria had dramatically higher rates of both depression and anxiety. For example, the prevalence of a HADS-A score of 11 or more, which is considered to be case finding for clinically important anxiety, was 28.6% in adults with AD, nearly twice the 15.5% prevalence in those without the dermatologic disease. A HADS-D score of 11 or greater was present in 13.5% of subjects with AD and 9% of those without.
HADS-A and -D scores were higher in adults with moderate AD, compared with mild disease, and higher still in those with severe AD. Indeed, virtually all individuals with moderate to severe AD had symptoms of anxiety and depression, which in a large proportion had gone undiagnosed. A multivariate analysis strongly suggested that AD severity was the major driver of anxiety and depression in adults with AD (Br J Dermatol. 2019 Sep;181[3]:554-65).
An important finding was that 100% of adults with AD who had scores in the severe range on three validated measures of itch, frequency of symptoms, and lesion severity had borderline or abnormal scores on the HADS-A and -D.
“Of course, if you don’t ask, you’re not going to know about it,” Dr. Silverberg noted.
Dr. Silverberg reported receiving research grants from Galderma and GlaxoSmithKline and serving as a consultant to those pharmaceutical companies and more than a dozen others.
Jonathan I. Silverberg, MD, PhD, declared in a video presentation during a virtual meeting held by the George Washington University department of dermatology.
The virtual meeting included presentations that had been slated for the annual meeting of the American Academy of Dermatology, which was canceled because of the COVID-19 pandemic.
Dr. Silverberg presented highlights of his recent study of depression screening rates in the National Ambulatory Medical Care Survey, an annual population-based survey by the National Center for Health Statistics. He and his coinvestigator analyzed 9,345 office visits for atopic dermatitis (AD) and 2,085 for psoriasis (Br J Dermatol. 2019 Oct 24. doi: 10.1111/bjd.18629.). The picture that emerged showed that there is much room for improvement.
“We found that depression screening rates were abysmally low in atopic dermatitis patients, with less than 2% patients being screened. There was very little difference in screening rates between patients on an advanced therapy, like systemic phototherapy or a biologic, compared to those who were just on topical therapy alone, meaning even the more severe patients aren’t being asked these questions. And no difference between dermatologists and primary care physicians,” said Dr. Silverberg, director of clinical research and contact dermatitis in the department of dermatology at George Washington University, Washington.
For Dr. Silverberg, known for his pioneering work documenting the marked yet often-underappreciated negative impact of AD on quality of life and mental health, these rock-bottom screening rates were particularly galling.
“There are very high rates of anxiety and depression amongst our patients with atopic dermatitis,” the dermatologist emphasized. “Mental health symptoms are an incredibly important domain in atopic dermatitis that we need to ask our patients about. We don’t ask enough.
“This to me is actually a very important symptom to measure. It’s not just a theoretical construct involved in understanding the burden of the disease, it’s something that’s actionable because most of these cases of mental health symptoms are reversible or modifiable with improved control of the atopic dermatitis,” he continued. “I use this as an indication to step up therapy. If a patient is clinically depressed and we believe that’s secondary to their chronic atopic dermatitis, this is a reason to step up therapy to something stronger.”
If the depressive symptoms don’t improve after stepping up the intensity of the dermatologic therapy, it’s probably time for the patient to see a mental health professional, Dr. Silverberg advised, adding, “I’m not telling every dermatology resident out there to become a psychiatrist.”
Depression and anxiety in AD: How common?
In an analysis of multiyear data from the Medical Expenditure Panel Surveys, an annual population-based project conducted by the Agency for Healthcare Research and Quality, Dr. Silverberg and a coinvestigator found that adults with AD were an adjusted 186% more likely than those without AD to screen positive for depressive symptoms on the two-item Patient Health Questionnaire (PHQ-2), with rates of 44.3% and 21.9%, respectively. The AD patients were also 500% more likely to screen positive for severe psychological distress, with a 25.9% rate of having a Kessler-6 index score of 13 or more, compared with 5.5% in adults without AD.
The rate of severe psychological distress was higher in adults with AD than in those with asthma, diabetes, hypertension, urticaria, or psoriasis, and was comparable with the rate in individuals with autoimmune disease (Ann Allergy Asthma Immunol. 2019 Aug;123[2]:179-85).
“It’s surprising when you think that the majority of the cases of atopic dermatitis in the population are mild and yet when you look at a population-based sample such as this you see a strong signal come up. It means that, with all the dilution of mild disease, the signal is still there. It emphasizes that even patients with mild disease get these depressive symptoms and psychosocial distress,” Dr. Silverberg observed.
In a separate analysis of the same national database, this time looking at Short Form-6D health utility scores – a measure of overall quality of life encompassing key domains including vitality, physical function, mental health, fatigue – adults with AD scored markedly worse than individuals with no chronic health disorders. Health utility scores were particularly low in adults with AD and comorbid symptoms of anxiety or depression, suggesting that those affective symptoms are major drivers of the demonstrably poor quality of life in adult AD (Ann Allergy Asthma Immunol. 2020 Jan;124[1]:88-9).
In the Atopic Dermatitis in America Study, Dr. Silverberg and coinvestigators cross-sectionally surveyed 2,893 adults using the seven-item Hospital Anxiety and Depression Scale anxiety (HADS-A) and depression (HADS-D) assessment instruments. Individuals with AD as determined using the modified U.K. Diagnostic Criteria had dramatically higher rates of both depression and anxiety. For example, the prevalence of a HADS-A score of 11 or more, which is considered to be case finding for clinically important anxiety, was 28.6% in adults with AD, nearly twice the 15.5% prevalence in those without the dermatologic disease. A HADS-D score of 11 or greater was present in 13.5% of subjects with AD and 9% of those without.
HADS-A and -D scores were higher in adults with moderate AD, compared with mild disease, and higher still in those with severe AD. Indeed, virtually all individuals with moderate to severe AD had symptoms of anxiety and depression, which in a large proportion had gone undiagnosed. A multivariate analysis strongly suggested that AD severity was the major driver of anxiety and depression in adults with AD (Br J Dermatol. 2019 Sep;181[3]:554-65).
An important finding was that 100% of adults with AD who had scores in the severe range on three validated measures of itch, frequency of symptoms, and lesion severity had borderline or abnormal scores on the HADS-A and -D.
“Of course, if you don’t ask, you’re not going to know about it,” Dr. Silverberg noted.
Dr. Silverberg reported receiving research grants from Galderma and GlaxoSmithKline and serving as a consultant to those pharmaceutical companies and more than a dozen others.
Jonathan I. Silverberg, MD, PhD, declared in a video presentation during a virtual meeting held by the George Washington University department of dermatology.
The virtual meeting included presentations that had been slated for the annual meeting of the American Academy of Dermatology, which was canceled because of the COVID-19 pandemic.
Dr. Silverberg presented highlights of his recent study of depression screening rates in the National Ambulatory Medical Care Survey, an annual population-based survey by the National Center for Health Statistics. He and his coinvestigator analyzed 9,345 office visits for atopic dermatitis (AD) and 2,085 for psoriasis (Br J Dermatol. 2019 Oct 24. doi: 10.1111/bjd.18629.). The picture that emerged showed that there is much room for improvement.
“We found that depression screening rates were abysmally low in atopic dermatitis patients, with less than 2% patients being screened. There was very little difference in screening rates between patients on an advanced therapy, like systemic phototherapy or a biologic, compared to those who were just on topical therapy alone, meaning even the more severe patients aren’t being asked these questions. And no difference between dermatologists and primary care physicians,” said Dr. Silverberg, director of clinical research and contact dermatitis in the department of dermatology at George Washington University, Washington.
For Dr. Silverberg, known for his pioneering work documenting the marked yet often-underappreciated negative impact of AD on quality of life and mental health, these rock-bottom screening rates were particularly galling.
“There are very high rates of anxiety and depression amongst our patients with atopic dermatitis,” the dermatologist emphasized. “Mental health symptoms are an incredibly important domain in atopic dermatitis that we need to ask our patients about. We don’t ask enough.
“This to me is actually a very important symptom to measure. It’s not just a theoretical construct involved in understanding the burden of the disease, it’s something that’s actionable because most of these cases of mental health symptoms are reversible or modifiable with improved control of the atopic dermatitis,” he continued. “I use this as an indication to step up therapy. If a patient is clinically depressed and we believe that’s secondary to their chronic atopic dermatitis, this is a reason to step up therapy to something stronger.”
If the depressive symptoms don’t improve after stepping up the intensity of the dermatologic therapy, it’s probably time for the patient to see a mental health professional, Dr. Silverberg advised, adding, “I’m not telling every dermatology resident out there to become a psychiatrist.”
Depression and anxiety in AD: How common?
In an analysis of multiyear data from the Medical Expenditure Panel Surveys, an annual population-based project conducted by the Agency for Healthcare Research and Quality, Dr. Silverberg and a coinvestigator found that adults with AD were an adjusted 186% more likely than those without AD to screen positive for depressive symptoms on the two-item Patient Health Questionnaire (PHQ-2), with rates of 44.3% and 21.9%, respectively. The AD patients were also 500% more likely to screen positive for severe psychological distress, with a 25.9% rate of having a Kessler-6 index score of 13 or more, compared with 5.5% in adults without AD.
The rate of severe psychological distress was higher in adults with AD than in those with asthma, diabetes, hypertension, urticaria, or psoriasis, and was comparable with the rate in individuals with autoimmune disease (Ann Allergy Asthma Immunol. 2019 Aug;123[2]:179-85).
“It’s surprising when you think that the majority of the cases of atopic dermatitis in the population are mild and yet when you look at a population-based sample such as this you see a strong signal come up. It means that, with all the dilution of mild disease, the signal is still there. It emphasizes that even patients with mild disease get these depressive symptoms and psychosocial distress,” Dr. Silverberg observed.
In a separate analysis of the same national database, this time looking at Short Form-6D health utility scores – a measure of overall quality of life encompassing key domains including vitality, physical function, mental health, fatigue – adults with AD scored markedly worse than individuals with no chronic health disorders. Health utility scores were particularly low in adults with AD and comorbid symptoms of anxiety or depression, suggesting that those affective symptoms are major drivers of the demonstrably poor quality of life in adult AD (Ann Allergy Asthma Immunol. 2020 Jan;124[1]:88-9).
In the Atopic Dermatitis in America Study, Dr. Silverberg and coinvestigators cross-sectionally surveyed 2,893 adults using the seven-item Hospital Anxiety and Depression Scale anxiety (HADS-A) and depression (HADS-D) assessment instruments. Individuals with AD as determined using the modified U.K. Diagnostic Criteria had dramatically higher rates of both depression and anxiety. For example, the prevalence of a HADS-A score of 11 or more, which is considered to be case finding for clinically important anxiety, was 28.6% in adults with AD, nearly twice the 15.5% prevalence in those without the dermatologic disease. A HADS-D score of 11 or greater was present in 13.5% of subjects with AD and 9% of those without.
HADS-A and -D scores were higher in adults with moderate AD, compared with mild disease, and higher still in those with severe AD. Indeed, virtually all individuals with moderate to severe AD had symptoms of anxiety and depression, which in a large proportion had gone undiagnosed. A multivariate analysis strongly suggested that AD severity was the major driver of anxiety and depression in adults with AD (Br J Dermatol. 2019 Sep;181[3]:554-65).
An important finding was that 100% of adults with AD who had scores in the severe range on three validated measures of itch, frequency of symptoms, and lesion severity had borderline or abnormal scores on the HADS-A and -D.
“Of course, if you don’t ask, you’re not going to know about it,” Dr. Silverberg noted.
Dr. Silverberg reported receiving research grants from Galderma and GlaxoSmithKline and serving as a consultant to those pharmaceutical companies and more than a dozen others.
New topicals coming for pediatric atopic dermatitis
LAHAINA, HAWAII – Novel topical medications are in the works that will address the longstanding unmet need for a Food and Drug Administration–approved noncorticosteroid topical for use in pediatric atopic dermatitis, Lawrence F. Eichenfield, MD, reported at the SDEF Hawaii Dermatology Seminar provided by the Global Academy for Medical Education/Skin Disease Education Foundation.
These new agents will be embraced by clinicians for use in delicate skin areas, as well as in the common clinical scenario involving steroid-averse parents, predicted Dr. Eichenfield, professor of dermatology and pediatrics at the University of California, San Diego, and chief of pediatric and adolescent dermatology at Rady Children’s Hospital.
First up is crisaborole (Eucrisa), which is approved for atopic dermatitis (AD) in children aged two years and older and has been under review at the Food and Drug Administration for use in infantile AD. (On March 24, several weeks after the meeting, the FDA approved crisaborole down to aged three months for treatment of mild to moderate AD). Agents earlier in the developmental pipeline include two topical Janus kinase (JAK) inhibitors, ruxolitinib and delgocitinib, as well as tapinarof.
Crisaborole: This phosphodiesterase 4 inhibitor is FDA approved down to 2 years of age. In the phase 4, open-label CrisADe CARE 1 study, crisaborole was studied in 137 children ages 3 months to under 24 months. CrisADe CARE 1, presented at the 2019 annual conference of the Pediatric Dermatology Research Alliance (PeDRA), showed close to a 60% reduction from baseline in Eczema Area and Severity Index (EASI) scores after 28 days of twice-daily therapy in the youngsters, 61% of who had moderate AD, the rest mild disease.
Tolerability and safety were reassuring in the phase 4 study. Although about 3% of subjects each experienced application site pain, discomfort, or erythema, the rate of study discontinuation was impressively low at 2.9%, Dr. Eichenfield observed.
Delgocitinib: Japanese investigators have reported positive results in a phase 2 study of delgocitinib ointment in 98 children and adolescents aged 2-15 years, with AD. After 4 weeks of twice-daily treatment, modified EASI scores improved by a mean of 54% with delgocitinib 0.25% and by 62% with 0.5%, compared with less than a 5% improvement with the vehicle control (J Allergy Clin Immunol. 2019 Dec;144[6]:1575-83). The ointment formulation is being developed specifically for the Japanese market.
Studies of an alternative formulation of the JAK inhibitor as a cream rather than ointment, intended for the U.S. and European markets, are in the early stages, conducted by Leo Pharma. Delgocitinib cream, under study in adults and children down to age 2 years with AD, is also under study for chronic hand dermatitis, a program Dr. Eichenfield is enthusiastic about.
“Hand eczema is something you’re going to hear a lot about in the next 2 years. In the U.S., we have no drug approved specifically for hand eczema. And we actually see a lot of hand eczema in pediatric and adolescent patients. I’d say 75%-80% of the ones I see also have atopic dermatitis,” he said.
Ruxolitinib: Incyte, which is developing the topical JAK inhibitor, recently announced positive results in the first of four phase 3 randomized trials, this one conducted in AD patients aged 12 years and older. The efficacy appears to be comparable to that of topical steroids. Studies in younger children are also planned. Ruxolitinib cream is in advanced clinical trials for treatment of vitiligo.
Tapinarof: This topical aryl hydrocarbon receptor agonist downregulates Th17 cytokines, an attribute desirable for treatment of psoriasis. But it also downregulates Th2 cytokines and improves the damaged skin barrier characteristic of AD via upregulation of the filaggrin and involucrin genes in keratinocytes. In a phase 2b, double-blind clinical trial conducted in 247 adults and adolescents with moderate to severe AD, 12 weeks of once-daily tapinarof 1% enabled 51% of patients to achieve a 75% or greater improvement in EASI scores, compared with 18% in controls on vehicle (J Am Acad Dermatol. 2019 Jan;80[1]:89-98.e3).
Dermavant, which is developing the drug, plans to seek an initial indication for treatment of psoriasis, where a phase 3 study is underway, before pursuing regulatory approval in AD.
Dr. Eichenfield disclosed serving as a consultant or investigator for various pharmaceutical companies, including Pfizer, and Dermavant.
SDEF/Global Academy for Medical Education and this news organization are owned by the same parent company.
This article was updated 3/27/20.
LAHAINA, HAWAII – Novel topical medications are in the works that will address the longstanding unmet need for a Food and Drug Administration–approved noncorticosteroid topical for use in pediatric atopic dermatitis, Lawrence F. Eichenfield, MD, reported at the SDEF Hawaii Dermatology Seminar provided by the Global Academy for Medical Education/Skin Disease Education Foundation.
These new agents will be embraced by clinicians for use in delicate skin areas, as well as in the common clinical scenario involving steroid-averse parents, predicted Dr. Eichenfield, professor of dermatology and pediatrics at the University of California, San Diego, and chief of pediatric and adolescent dermatology at Rady Children’s Hospital.
First up is crisaborole (Eucrisa), which is approved for atopic dermatitis (AD) in children aged two years and older and has been under review at the Food and Drug Administration for use in infantile AD. (On March 24, several weeks after the meeting, the FDA approved crisaborole down to aged three months for treatment of mild to moderate AD). Agents earlier in the developmental pipeline include two topical Janus kinase (JAK) inhibitors, ruxolitinib and delgocitinib, as well as tapinarof.
Crisaborole: This phosphodiesterase 4 inhibitor is FDA approved down to 2 years of age. In the phase 4, open-label CrisADe CARE 1 study, crisaborole was studied in 137 children ages 3 months to under 24 months. CrisADe CARE 1, presented at the 2019 annual conference of the Pediatric Dermatology Research Alliance (PeDRA), showed close to a 60% reduction from baseline in Eczema Area and Severity Index (EASI) scores after 28 days of twice-daily therapy in the youngsters, 61% of who had moderate AD, the rest mild disease.
Tolerability and safety were reassuring in the phase 4 study. Although about 3% of subjects each experienced application site pain, discomfort, or erythema, the rate of study discontinuation was impressively low at 2.9%, Dr. Eichenfield observed.
Delgocitinib: Japanese investigators have reported positive results in a phase 2 study of delgocitinib ointment in 98 children and adolescents aged 2-15 years, with AD. After 4 weeks of twice-daily treatment, modified EASI scores improved by a mean of 54% with delgocitinib 0.25% and by 62% with 0.5%, compared with less than a 5% improvement with the vehicle control (J Allergy Clin Immunol. 2019 Dec;144[6]:1575-83). The ointment formulation is being developed specifically for the Japanese market.
Studies of an alternative formulation of the JAK inhibitor as a cream rather than ointment, intended for the U.S. and European markets, are in the early stages, conducted by Leo Pharma. Delgocitinib cream, under study in adults and children down to age 2 years with AD, is also under study for chronic hand dermatitis, a program Dr. Eichenfield is enthusiastic about.
“Hand eczema is something you’re going to hear a lot about in the next 2 years. In the U.S., we have no drug approved specifically for hand eczema. And we actually see a lot of hand eczema in pediatric and adolescent patients. I’d say 75%-80% of the ones I see also have atopic dermatitis,” he said.
Ruxolitinib: Incyte, which is developing the topical JAK inhibitor, recently announced positive results in the first of four phase 3 randomized trials, this one conducted in AD patients aged 12 years and older. The efficacy appears to be comparable to that of topical steroids. Studies in younger children are also planned. Ruxolitinib cream is in advanced clinical trials for treatment of vitiligo.
Tapinarof: This topical aryl hydrocarbon receptor agonist downregulates Th17 cytokines, an attribute desirable for treatment of psoriasis. But it also downregulates Th2 cytokines and improves the damaged skin barrier characteristic of AD via upregulation of the filaggrin and involucrin genes in keratinocytes. In a phase 2b, double-blind clinical trial conducted in 247 adults and adolescents with moderate to severe AD, 12 weeks of once-daily tapinarof 1% enabled 51% of patients to achieve a 75% or greater improvement in EASI scores, compared with 18% in controls on vehicle (J Am Acad Dermatol. 2019 Jan;80[1]:89-98.e3).
Dermavant, which is developing the drug, plans to seek an initial indication for treatment of psoriasis, where a phase 3 study is underway, before pursuing regulatory approval in AD.
Dr. Eichenfield disclosed serving as a consultant or investigator for various pharmaceutical companies, including Pfizer, and Dermavant.
SDEF/Global Academy for Medical Education and this news organization are owned by the same parent company.
This article was updated 3/27/20.
LAHAINA, HAWAII – Novel topical medications are in the works that will address the longstanding unmet need for a Food and Drug Administration–approved noncorticosteroid topical for use in pediatric atopic dermatitis, Lawrence F. Eichenfield, MD, reported at the SDEF Hawaii Dermatology Seminar provided by the Global Academy for Medical Education/Skin Disease Education Foundation.
These new agents will be embraced by clinicians for use in delicate skin areas, as well as in the common clinical scenario involving steroid-averse parents, predicted Dr. Eichenfield, professor of dermatology and pediatrics at the University of California, San Diego, and chief of pediatric and adolescent dermatology at Rady Children’s Hospital.
First up is crisaborole (Eucrisa), which is approved for atopic dermatitis (AD) in children aged two years and older and has been under review at the Food and Drug Administration for use in infantile AD. (On March 24, several weeks after the meeting, the FDA approved crisaborole down to aged three months for treatment of mild to moderate AD). Agents earlier in the developmental pipeline include two topical Janus kinase (JAK) inhibitors, ruxolitinib and delgocitinib, as well as tapinarof.
Crisaborole: This phosphodiesterase 4 inhibitor is FDA approved down to 2 years of age. In the phase 4, open-label CrisADe CARE 1 study, crisaborole was studied in 137 children ages 3 months to under 24 months. CrisADe CARE 1, presented at the 2019 annual conference of the Pediatric Dermatology Research Alliance (PeDRA), showed close to a 60% reduction from baseline in Eczema Area and Severity Index (EASI) scores after 28 days of twice-daily therapy in the youngsters, 61% of who had moderate AD, the rest mild disease.
Tolerability and safety were reassuring in the phase 4 study. Although about 3% of subjects each experienced application site pain, discomfort, or erythema, the rate of study discontinuation was impressively low at 2.9%, Dr. Eichenfield observed.
Delgocitinib: Japanese investigators have reported positive results in a phase 2 study of delgocitinib ointment in 98 children and adolescents aged 2-15 years, with AD. After 4 weeks of twice-daily treatment, modified EASI scores improved by a mean of 54% with delgocitinib 0.25% and by 62% with 0.5%, compared with less than a 5% improvement with the vehicle control (J Allergy Clin Immunol. 2019 Dec;144[6]:1575-83). The ointment formulation is being developed specifically for the Japanese market.
Studies of an alternative formulation of the JAK inhibitor as a cream rather than ointment, intended for the U.S. and European markets, are in the early stages, conducted by Leo Pharma. Delgocitinib cream, under study in adults and children down to age 2 years with AD, is also under study for chronic hand dermatitis, a program Dr. Eichenfield is enthusiastic about.
“Hand eczema is something you’re going to hear a lot about in the next 2 years. In the U.S., we have no drug approved specifically for hand eczema. And we actually see a lot of hand eczema in pediatric and adolescent patients. I’d say 75%-80% of the ones I see also have atopic dermatitis,” he said.
Ruxolitinib: Incyte, which is developing the topical JAK inhibitor, recently announced positive results in the first of four phase 3 randomized trials, this one conducted in AD patients aged 12 years and older. The efficacy appears to be comparable to that of topical steroids. Studies in younger children are also planned. Ruxolitinib cream is in advanced clinical trials for treatment of vitiligo.
Tapinarof: This topical aryl hydrocarbon receptor agonist downregulates Th17 cytokines, an attribute desirable for treatment of psoriasis. But it also downregulates Th2 cytokines and improves the damaged skin barrier characteristic of AD via upregulation of the filaggrin and involucrin genes in keratinocytes. In a phase 2b, double-blind clinical trial conducted in 247 adults and adolescents with moderate to severe AD, 12 weeks of once-daily tapinarof 1% enabled 51% of patients to achieve a 75% or greater improvement in EASI scores, compared with 18% in controls on vehicle (J Am Acad Dermatol. 2019 Jan;80[1]:89-98.e3).
Dermavant, which is developing the drug, plans to seek an initial indication for treatment of psoriasis, where a phase 3 study is underway, before pursuing regulatory approval in AD.
Dr. Eichenfield disclosed serving as a consultant or investigator for various pharmaceutical companies, including Pfizer, and Dermavant.
SDEF/Global Academy for Medical Education and this news organization are owned by the same parent company.
This article was updated 3/27/20.
REPORTING FROM THE SDEF HAWAII DERMATOLOGY SEMINAR
Dermatology therapies evolve as disease knowledge and investment grow
For much of the past 50 years, many of the drugs used in dermatology have been adopted – and often adapted – from other specialties and used for dermatologic conditions.
“Almost every drug was more or less a hand-me-down” developed first for cancer or other diseases and found later, often serendipitously, to be useful for the skin, said William Eaglstein, MD, thinking back to the 1970s and recalling steroids, tetracyclines, methotrexate, and 5-flourouracil. “The perception always was that skin diseases weren’t serious, that the market was small.”
Much has changed. by dermatologist investigators, and “more and more companies are recognizing the importance of our diseases and the ability to get a return on investment,” said Dr. Eaglstein, past professor and chair of the departments of dermatology at the University of Miami and the University of Pittsburgh, who worked in industry after his academic career.
Psoriasis was a game changer, he and other dermatologists said in interviews. The tumor necrosis factor (TNF)–alpha blockers were first used for other indications, but their marked follow-on success in psoriasis “offered proof of concept clinically – showing that by targeting immune pathways in the skin we could achieve a clinical effect – and proof of concept commercially” that dermatology drugs are worth pursuing by pharmaceutical companies, said William Ju, MD, a cofounder and president of Advancing Innovation in Dermatology, a nonprofit organization that brings together stakeholders to develop novel dermatologic drugs and products.
This resulted in the approval of subsequent biologics, such as ustekinumab (Stelara) which inhibits the signaling of interleukin (IL)–12/IL-23, for psoriasis as their initial indication. Then, biologics targeting IL-17 followed this dermatology-first approach. “Researchers have continued further dissecting out the immunopathological pathways, and antibody drugs targeting IL-23p19 have been approved for psoriasis as the lead indication,” said Dr. Ju, a dermatologist who has worked in industry.
Seth Orlow, MD, PhD, who chairs the department of dermatology at NYU Langone Health, remembers the 1970s through the 1990s as the “era of topicals” developed for dermatologic conditions – topical antifungals, topical corticosteroids, and topical retinoids. The next decade was characterized by formulation tweaks and few novel treatments for dermatology, said Dr. Orlow, who is also professor of pediatric dermatology and director of the program in cutaneous biology at New York University.
Now, given the succession of psoriasis discoveries in the last decade, “large companies are interested in dermatology,” he said in an interview. “There’s an explosion of interest in atopic dermatitis. … and companies are dipping their toes in the water for alopecia areata and vitiligo. That’s amazing.”
Rare diseases like epidermolysis bullosa, ichthyosis, and basal cell nevus syndrome are getting attention as well, boosted by the Orphan Drug Act of 1983, in addition to increased research on disease pathways and growing appreciation of skin diseases. “There’s a lot under development, from small molecules to biologics to gene-based therapies,” Dr. Orlow commented.
The new frontier of atopic dermatitis
The approval in 2017 of dupilumab (Dupixent), a monoclonal antibody that inhibits the signaling of both IL-4 and IL-13) for moderate-severe atopic dermatitis (AD) in adults illustrates the new standing of dermatologic diseases in the field of drug development and commercialization. “Atopic dermatitis had always been the forgotten chronic disease in dermatology. … We’ve had no good treatments,” said Eric Simpson, MD, professor of dermatology at Oregon Health & Science University, Portland. “Dupilumab coming to the forefront [as a dermatology-first indication] has changed the entire perspective of the field. … Everyone is now trying to find the next best drug.”
As with psoriasis, a targeted therapy for AD was made possible by the development in the 1990s of monoclonal antibody technology and the ensuing ability to create biologics that target specific molecules in the body – as well as bedside-to-bench research that homed in on the involvement of particular cytokines.
But there also is a “new understanding of the burden of the disease,” Dr. Simpson observed. In the last 5 years, he said, research funded by the National Eczema Association documented that AD “not only causes inflammation of the skin … but that it affects people at school and in the workplace, that people have multiple mental health comorbidities and skin infections, and that the disease profoundly affects the entire patient in ways that weren’t really recognized or appreciated.”
Having evolved in the footsteps of psoriasis, AD is at a higher starting point in terms of the safety and efficacy of its first biologic, sources said. On the other hand, AD is a much more complex and heterogeneous disease, and researchers are trying to determine which immune pathways and cytokines are most important – and in which populations.
“We’re at the beginning. We’re trying to figure out how to get 80% of patients clear or almost clear [as we can now with psoriasis biologics] rather than almost 40% [as in the dupilumab pivotal trials],” said Dr. Simpson, former cochair of the National Eczema Association’s scientific committee. Public data from ongoing phase 2 and 3 trials of other Th2 cytokine inhibitors suggest that 25%-45% of enrolled patients achieve high levels of clearance, he noted.
Emma Guttman-Yassky, MD, PhD, Sol and Clara Kest Professor and vice-chair for research in the department of dermatology at the Icahn School of Medicine at Mount Sinai, New York, said that AD’s heterogeneity involves “many factors, like ethnicity, age … and whether they have an atopic background such as asthma.”
Her research is showing, for instance, that AD in Asian and black patients is different than AD in European-American patients, and that the presence of comorbidities may well have treatment implications. She has also shown that children may have a different phenotype than adults, with greater activation of the Th17 axis that typifies psoriasis.
“For certain patients, we may need to target more than one pathway, or target a different pathway than the Th2 pathway. And treatment may be different in the setting of comorbidities,” said Dr. Guttman-Yassky, who is also director of the laboratory of inflammatory skin diseases at Mount Sinai. “We may think of one treatment – dupilumab, for example – for someone who has asthma and AD. But for patients who don’t have asthma and are Asian, for instance, or for children, we may need additional agents.”
Her research over the years on AD has taught her the importance of human studies over mouse model studies; it was in humans, she noted, that she and other investigators demonstrated “without doubt” that AD is an immune disease and not simply a barrier disease. The Th2 cytokine pathway appears to play the predominant role in AD, though “there still is a strong Th1 component,” she said.
“We’re in a better position to figure this out today [than in the past 20 or even 10 years],” said Dr. Guttman-Yassky, who recalls being told years ago that AD was a “dead end,” that it “would kill [her] career.” Given the evolution of science and the recognition of comorbidities and seriousness of dermatologic diseases, “the stars are aligned to get more [therapies] to these patients.”
Janus kinase (JAK) inhibitors are among these therapies. Three JAK inhibitors are in or have recently completed phase 3 studies for AD; two are currently approved for rheumatoid arthritis, and the other has been designed specifically for AD, Dr. Simpson pointed out. The drugs are oral small molecule drugs that block the JAK signaling pathways for certain proinflammatory cytokines.
“The JAK inhibitors are a real exciting story for dermatology,” he said. “Theoretically, by blocking more cytokines than biologics do, there could be some safety issues – that’s why we’re awaiting big phase 3 study results so we can figure out the risk-benefit balance and guide our patients as to which drug is best.”
Andrew Blauvelt, MD, MBA, president of Oregon Medical Research Center in Portland – a stand-alone dermatology clinical trial center founded in 1998 – likes to envision the evolution of drugs for dermatologic conditions as a funnel, with the most broad-acting drugs at the wide top of the funnel and the most targeted drugs at the bottom tip.
JAK inhibitors, he said, sit near the middle – more targeted and safer than cyclosporine and methotrexate, for instance, but not as targeted as the biologics now available for psoriasis and being developed for AD. “The oral medications that have been developed for psoriasis and those coming for AD are not quite as targeted to the disease,” he noted. “JAK inhibitors have great efficacy – it’s more a question of safety and being able to treat without causing collateral damage.”
Dr. Blauvelt expects the armamentarium of new drugs approved for AD to go from one (dupilumab) to seven within the next 2 years. This will include three new biologics and three new oral JAK inhibitors, he predicts. As the specialty sorts through and integrates these new drugs into practice, dermatologists will increasingly personalize treatment and will face the “nonscientific” challenge of the cost of new therapies and patient access to them, he noted.
In the meantime, said Dr. Simpson, recent drug discoveries have driven more non–pharmaceutical-funded translational research aimed at understanding the underlying biology of AD. The National Institutes of Health, for instance, “is interested in dupilumab and its impact on the skin barrier and skin defense mechanisms,” he said. “We’ll learn a lot more [in coming years].”
Spillover to other diseases
JAK inhibitors – some in oral and some in topical form – are showing efficacy in ongoing research for alopecia areata (AA) and vitiligo as well, Dr. Blauvelt said.
“We’re understanding more about the pathophysiology of these diseases, which historically have been tough diseases for dermatologists to treat,” he said. “The successes in alopecia areata and vitiligo are incredibly exciting actually – it’s very exciting to see hair and pigment coming back. And as we learn more, we should be able to develop [additional] drugs that are more disease targeted than the JAK inhibitors.”
Already, some of the biologics used to treat psoriasis have been studied in patients with hidradenitis suppurativa (HS), a disease in which painful lumps and sometimes tunnels form under the skin, with some success; adalimumab (Humira), a TNF-inhibitor, is now FDA approved for the treatment of moderate-severe HS, and studies are ongoing of IL-17 and IL-23 blockers for the disease.
“The pathophysiology [of HS] is very complex; it’s not nearly as straightforward as psoriasis, and there haven’t been any major breakthroughs yet,” Dr. Blauvelt said. “But the drugs seem to be working better than historical alternatives.”
Regarding AA, Dr. Guttman-Yassky, who is participating in a study of dupilumab for AA, recently found in a retrospective cross-sectional study that patients with the condition are more likely to have atopic comorbidities – asthma, allergic rhinitis, and AD, for instance. “The more comorbid conditions, the greater the risk of developing alopecia areata,” she said. “That could point to a potential pathogenic role of the Th2 axis in the disorder [challenging the traditional view of AA as a singularly Th1-centered disease.] The future will tell.”
Action on rare skin diseases
Both large and small companies have moved into the orphan drug space, investing in research and pursuing orphan drug indications for dermatologic conditions, because “it’s clear now in the marketplace that companies can develop effective drugs for rare disorders and be quite successful,” Dr. Orlow said.
According to a recent analysis, as a result of incentives for rare disease drug development contained in the Orphan Drug Act, 72 indications have been approved for rare skin disease, skin-related cancers, and hereditary disorders with prominent dermatologic manifestations since the law was passed in 1983 (J. Am. Acad. Dermatol. 2019;81[3]:867-77).
Epidermolysis bullosa (EB) is a good example, he and other sources said, of commercial interests merging with growing knowledge of disease pathogenesis as well as the tools needed to develop new treatments.
Research by dermatology scientists and others over the past 40 years, Dr. Ju explained, shed light on the molecular basis underlying the structure and function of the junction between the epidermis and dermis, including the pivotal role that type VII collagen plays in the normal adhesion of these two layers. Researchers then learned that, in EB, the family of genetic diseases characterized by skin fragility, “dystrophic types are caused by mutations in the gene encoding type VII collagen,” he said.
“Just as the advent of monoclonal antibodies allowed us to start attacking psoriasis and atopic dermatitis in unprecedented ways, the advent of gene therapy allows us to potentially address the fundamental molecular genetic defect of various types of EB,” Dr. Ju said.
While gene therapy is “still in its infancy,” companies have begun using the tools to address EB. One gene therapy in the pipeline – in phase 3 clinical trial testing – involves grafting back into patients with recessive dystrophic EB their skin cells that have been genetically modified to produce a correct (nonmutated) type VII collagen, he said.
Basal cell nevus syndrome, or Gorlin syndrome, a rare disease in which patients develop a multitude of basal cell carcinoma tumors, is another example of a “dermatology first” approach, Dr. Ju said. Research identified a genetic mutation that causes the hedgehog signaling pathway to be inappropriately activated in the disease, and a drug, vismodegib, was developed to inhibit this pathway. The drug was initially approved for patients with metastatic basal cell cancer and types of advanced basal cell cancer, and is now being tested in cancers affecting other organs, he said.
Basal cell cancer “is a huge market, but it was really unrecognized in the past,” Dr. Eaglstein said. “Seeing drugs come to market for basal cell cancer – this wouldn’t have happened [decades ago].”
Dr. Ju has worked in the pharmaceutical industry; all other sources in this story have worked with pharmaceutical manufacturers of treatments that are being developed or have been approved to treat dermatologic diseases mentioned in this story. In addition to Dr. Ju, Dr. Eaglstein and Dr. Orlow are cofounders of the Advancing Innovation in Dermatology group; Dr. Orlow is a member of the program committee for the organization’s dermatology summit conference.
For much of the past 50 years, many of the drugs used in dermatology have been adopted – and often adapted – from other specialties and used for dermatologic conditions.
“Almost every drug was more or less a hand-me-down” developed first for cancer or other diseases and found later, often serendipitously, to be useful for the skin, said William Eaglstein, MD, thinking back to the 1970s and recalling steroids, tetracyclines, methotrexate, and 5-flourouracil. “The perception always was that skin diseases weren’t serious, that the market was small.”
Much has changed. by dermatologist investigators, and “more and more companies are recognizing the importance of our diseases and the ability to get a return on investment,” said Dr. Eaglstein, past professor and chair of the departments of dermatology at the University of Miami and the University of Pittsburgh, who worked in industry after his academic career.
Psoriasis was a game changer, he and other dermatologists said in interviews. The tumor necrosis factor (TNF)–alpha blockers were first used for other indications, but their marked follow-on success in psoriasis “offered proof of concept clinically – showing that by targeting immune pathways in the skin we could achieve a clinical effect – and proof of concept commercially” that dermatology drugs are worth pursuing by pharmaceutical companies, said William Ju, MD, a cofounder and president of Advancing Innovation in Dermatology, a nonprofit organization that brings together stakeholders to develop novel dermatologic drugs and products.
This resulted in the approval of subsequent biologics, such as ustekinumab (Stelara) which inhibits the signaling of interleukin (IL)–12/IL-23, for psoriasis as their initial indication. Then, biologics targeting IL-17 followed this dermatology-first approach. “Researchers have continued further dissecting out the immunopathological pathways, and antibody drugs targeting IL-23p19 have been approved for psoriasis as the lead indication,” said Dr. Ju, a dermatologist who has worked in industry.
Seth Orlow, MD, PhD, who chairs the department of dermatology at NYU Langone Health, remembers the 1970s through the 1990s as the “era of topicals” developed for dermatologic conditions – topical antifungals, topical corticosteroids, and topical retinoids. The next decade was characterized by formulation tweaks and few novel treatments for dermatology, said Dr. Orlow, who is also professor of pediatric dermatology and director of the program in cutaneous biology at New York University.
Now, given the succession of psoriasis discoveries in the last decade, “large companies are interested in dermatology,” he said in an interview. “There’s an explosion of interest in atopic dermatitis. … and companies are dipping their toes in the water for alopecia areata and vitiligo. That’s amazing.”
Rare diseases like epidermolysis bullosa, ichthyosis, and basal cell nevus syndrome are getting attention as well, boosted by the Orphan Drug Act of 1983, in addition to increased research on disease pathways and growing appreciation of skin diseases. “There’s a lot under development, from small molecules to biologics to gene-based therapies,” Dr. Orlow commented.
The new frontier of atopic dermatitis
The approval in 2017 of dupilumab (Dupixent), a monoclonal antibody that inhibits the signaling of both IL-4 and IL-13) for moderate-severe atopic dermatitis (AD) in adults illustrates the new standing of dermatologic diseases in the field of drug development and commercialization. “Atopic dermatitis had always been the forgotten chronic disease in dermatology. … We’ve had no good treatments,” said Eric Simpson, MD, professor of dermatology at Oregon Health & Science University, Portland. “Dupilumab coming to the forefront [as a dermatology-first indication] has changed the entire perspective of the field. … Everyone is now trying to find the next best drug.”
As with psoriasis, a targeted therapy for AD was made possible by the development in the 1990s of monoclonal antibody technology and the ensuing ability to create biologics that target specific molecules in the body – as well as bedside-to-bench research that homed in on the involvement of particular cytokines.
But there also is a “new understanding of the burden of the disease,” Dr. Simpson observed. In the last 5 years, he said, research funded by the National Eczema Association documented that AD “not only causes inflammation of the skin … but that it affects people at school and in the workplace, that people have multiple mental health comorbidities and skin infections, and that the disease profoundly affects the entire patient in ways that weren’t really recognized or appreciated.”
Having evolved in the footsteps of psoriasis, AD is at a higher starting point in terms of the safety and efficacy of its first biologic, sources said. On the other hand, AD is a much more complex and heterogeneous disease, and researchers are trying to determine which immune pathways and cytokines are most important – and in which populations.
“We’re at the beginning. We’re trying to figure out how to get 80% of patients clear or almost clear [as we can now with psoriasis biologics] rather than almost 40% [as in the dupilumab pivotal trials],” said Dr. Simpson, former cochair of the National Eczema Association’s scientific committee. Public data from ongoing phase 2 and 3 trials of other Th2 cytokine inhibitors suggest that 25%-45% of enrolled patients achieve high levels of clearance, he noted.
Emma Guttman-Yassky, MD, PhD, Sol and Clara Kest Professor and vice-chair for research in the department of dermatology at the Icahn School of Medicine at Mount Sinai, New York, said that AD’s heterogeneity involves “many factors, like ethnicity, age … and whether they have an atopic background such as asthma.”
Her research is showing, for instance, that AD in Asian and black patients is different than AD in European-American patients, and that the presence of comorbidities may well have treatment implications. She has also shown that children may have a different phenotype than adults, with greater activation of the Th17 axis that typifies psoriasis.
“For certain patients, we may need to target more than one pathway, or target a different pathway than the Th2 pathway. And treatment may be different in the setting of comorbidities,” said Dr. Guttman-Yassky, who is also director of the laboratory of inflammatory skin diseases at Mount Sinai. “We may think of one treatment – dupilumab, for example – for someone who has asthma and AD. But for patients who don’t have asthma and are Asian, for instance, or for children, we may need additional agents.”
Her research over the years on AD has taught her the importance of human studies over mouse model studies; it was in humans, she noted, that she and other investigators demonstrated “without doubt” that AD is an immune disease and not simply a barrier disease. The Th2 cytokine pathway appears to play the predominant role in AD, though “there still is a strong Th1 component,” she said.
“We’re in a better position to figure this out today [than in the past 20 or even 10 years],” said Dr. Guttman-Yassky, who recalls being told years ago that AD was a “dead end,” that it “would kill [her] career.” Given the evolution of science and the recognition of comorbidities and seriousness of dermatologic diseases, “the stars are aligned to get more [therapies] to these patients.”
Janus kinase (JAK) inhibitors are among these therapies. Three JAK inhibitors are in or have recently completed phase 3 studies for AD; two are currently approved for rheumatoid arthritis, and the other has been designed specifically for AD, Dr. Simpson pointed out. The drugs are oral small molecule drugs that block the JAK signaling pathways for certain proinflammatory cytokines.
“The JAK inhibitors are a real exciting story for dermatology,” he said. “Theoretically, by blocking more cytokines than biologics do, there could be some safety issues – that’s why we’re awaiting big phase 3 study results so we can figure out the risk-benefit balance and guide our patients as to which drug is best.”
Andrew Blauvelt, MD, MBA, president of Oregon Medical Research Center in Portland – a stand-alone dermatology clinical trial center founded in 1998 – likes to envision the evolution of drugs for dermatologic conditions as a funnel, with the most broad-acting drugs at the wide top of the funnel and the most targeted drugs at the bottom tip.
JAK inhibitors, he said, sit near the middle – more targeted and safer than cyclosporine and methotrexate, for instance, but not as targeted as the biologics now available for psoriasis and being developed for AD. “The oral medications that have been developed for psoriasis and those coming for AD are not quite as targeted to the disease,” he noted. “JAK inhibitors have great efficacy – it’s more a question of safety and being able to treat without causing collateral damage.”
Dr. Blauvelt expects the armamentarium of new drugs approved for AD to go from one (dupilumab) to seven within the next 2 years. This will include three new biologics and three new oral JAK inhibitors, he predicts. As the specialty sorts through and integrates these new drugs into practice, dermatologists will increasingly personalize treatment and will face the “nonscientific” challenge of the cost of new therapies and patient access to them, he noted.
In the meantime, said Dr. Simpson, recent drug discoveries have driven more non–pharmaceutical-funded translational research aimed at understanding the underlying biology of AD. The National Institutes of Health, for instance, “is interested in dupilumab and its impact on the skin barrier and skin defense mechanisms,” he said. “We’ll learn a lot more [in coming years].”
Spillover to other diseases
JAK inhibitors – some in oral and some in topical form – are showing efficacy in ongoing research for alopecia areata (AA) and vitiligo as well, Dr. Blauvelt said.
“We’re understanding more about the pathophysiology of these diseases, which historically have been tough diseases for dermatologists to treat,” he said. “The successes in alopecia areata and vitiligo are incredibly exciting actually – it’s very exciting to see hair and pigment coming back. And as we learn more, we should be able to develop [additional] drugs that are more disease targeted than the JAK inhibitors.”
Already, some of the biologics used to treat psoriasis have been studied in patients with hidradenitis suppurativa (HS), a disease in which painful lumps and sometimes tunnels form under the skin, with some success; adalimumab (Humira), a TNF-inhibitor, is now FDA approved for the treatment of moderate-severe HS, and studies are ongoing of IL-17 and IL-23 blockers for the disease.
“The pathophysiology [of HS] is very complex; it’s not nearly as straightforward as psoriasis, and there haven’t been any major breakthroughs yet,” Dr. Blauvelt said. “But the drugs seem to be working better than historical alternatives.”
Regarding AA, Dr. Guttman-Yassky, who is participating in a study of dupilumab for AA, recently found in a retrospective cross-sectional study that patients with the condition are more likely to have atopic comorbidities – asthma, allergic rhinitis, and AD, for instance. “The more comorbid conditions, the greater the risk of developing alopecia areata,” she said. “That could point to a potential pathogenic role of the Th2 axis in the disorder [challenging the traditional view of AA as a singularly Th1-centered disease.] The future will tell.”
Action on rare skin diseases
Both large and small companies have moved into the orphan drug space, investing in research and pursuing orphan drug indications for dermatologic conditions, because “it’s clear now in the marketplace that companies can develop effective drugs for rare disorders and be quite successful,” Dr. Orlow said.
According to a recent analysis, as a result of incentives for rare disease drug development contained in the Orphan Drug Act, 72 indications have been approved for rare skin disease, skin-related cancers, and hereditary disorders with prominent dermatologic manifestations since the law was passed in 1983 (J. Am. Acad. Dermatol. 2019;81[3]:867-77).
Epidermolysis bullosa (EB) is a good example, he and other sources said, of commercial interests merging with growing knowledge of disease pathogenesis as well as the tools needed to develop new treatments.
Research by dermatology scientists and others over the past 40 years, Dr. Ju explained, shed light on the molecular basis underlying the structure and function of the junction between the epidermis and dermis, including the pivotal role that type VII collagen plays in the normal adhesion of these two layers. Researchers then learned that, in EB, the family of genetic diseases characterized by skin fragility, “dystrophic types are caused by mutations in the gene encoding type VII collagen,” he said.
“Just as the advent of monoclonal antibodies allowed us to start attacking psoriasis and atopic dermatitis in unprecedented ways, the advent of gene therapy allows us to potentially address the fundamental molecular genetic defect of various types of EB,” Dr. Ju said.
While gene therapy is “still in its infancy,” companies have begun using the tools to address EB. One gene therapy in the pipeline – in phase 3 clinical trial testing – involves grafting back into patients with recessive dystrophic EB their skin cells that have been genetically modified to produce a correct (nonmutated) type VII collagen, he said.
Basal cell nevus syndrome, or Gorlin syndrome, a rare disease in which patients develop a multitude of basal cell carcinoma tumors, is another example of a “dermatology first” approach, Dr. Ju said. Research identified a genetic mutation that causes the hedgehog signaling pathway to be inappropriately activated in the disease, and a drug, vismodegib, was developed to inhibit this pathway. The drug was initially approved for patients with metastatic basal cell cancer and types of advanced basal cell cancer, and is now being tested in cancers affecting other organs, he said.
Basal cell cancer “is a huge market, but it was really unrecognized in the past,” Dr. Eaglstein said. “Seeing drugs come to market for basal cell cancer – this wouldn’t have happened [decades ago].”
Dr. Ju has worked in the pharmaceutical industry; all other sources in this story have worked with pharmaceutical manufacturers of treatments that are being developed or have been approved to treat dermatologic diseases mentioned in this story. In addition to Dr. Ju, Dr. Eaglstein and Dr. Orlow are cofounders of the Advancing Innovation in Dermatology group; Dr. Orlow is a member of the program committee for the organization’s dermatology summit conference.
For much of the past 50 years, many of the drugs used in dermatology have been adopted – and often adapted – from other specialties and used for dermatologic conditions.
“Almost every drug was more or less a hand-me-down” developed first for cancer or other diseases and found later, often serendipitously, to be useful for the skin, said William Eaglstein, MD, thinking back to the 1970s and recalling steroids, tetracyclines, methotrexate, and 5-flourouracil. “The perception always was that skin diseases weren’t serious, that the market was small.”
Much has changed. by dermatologist investigators, and “more and more companies are recognizing the importance of our diseases and the ability to get a return on investment,” said Dr. Eaglstein, past professor and chair of the departments of dermatology at the University of Miami and the University of Pittsburgh, who worked in industry after his academic career.
Psoriasis was a game changer, he and other dermatologists said in interviews. The tumor necrosis factor (TNF)–alpha blockers were first used for other indications, but their marked follow-on success in psoriasis “offered proof of concept clinically – showing that by targeting immune pathways in the skin we could achieve a clinical effect – and proof of concept commercially” that dermatology drugs are worth pursuing by pharmaceutical companies, said William Ju, MD, a cofounder and president of Advancing Innovation in Dermatology, a nonprofit organization that brings together stakeholders to develop novel dermatologic drugs and products.
This resulted in the approval of subsequent biologics, such as ustekinumab (Stelara) which inhibits the signaling of interleukin (IL)–12/IL-23, for psoriasis as their initial indication. Then, biologics targeting IL-17 followed this dermatology-first approach. “Researchers have continued further dissecting out the immunopathological pathways, and antibody drugs targeting IL-23p19 have been approved for psoriasis as the lead indication,” said Dr. Ju, a dermatologist who has worked in industry.
Seth Orlow, MD, PhD, who chairs the department of dermatology at NYU Langone Health, remembers the 1970s through the 1990s as the “era of topicals” developed for dermatologic conditions – topical antifungals, topical corticosteroids, and topical retinoids. The next decade was characterized by formulation tweaks and few novel treatments for dermatology, said Dr. Orlow, who is also professor of pediatric dermatology and director of the program in cutaneous biology at New York University.
Now, given the succession of psoriasis discoveries in the last decade, “large companies are interested in dermatology,” he said in an interview. “There’s an explosion of interest in atopic dermatitis. … and companies are dipping their toes in the water for alopecia areata and vitiligo. That’s amazing.”
Rare diseases like epidermolysis bullosa, ichthyosis, and basal cell nevus syndrome are getting attention as well, boosted by the Orphan Drug Act of 1983, in addition to increased research on disease pathways and growing appreciation of skin diseases. “There’s a lot under development, from small molecules to biologics to gene-based therapies,” Dr. Orlow commented.
The new frontier of atopic dermatitis
The approval in 2017 of dupilumab (Dupixent), a monoclonal antibody that inhibits the signaling of both IL-4 and IL-13) for moderate-severe atopic dermatitis (AD) in adults illustrates the new standing of dermatologic diseases in the field of drug development and commercialization. “Atopic dermatitis had always been the forgotten chronic disease in dermatology. … We’ve had no good treatments,” said Eric Simpson, MD, professor of dermatology at Oregon Health & Science University, Portland. “Dupilumab coming to the forefront [as a dermatology-first indication] has changed the entire perspective of the field. … Everyone is now trying to find the next best drug.”
As with psoriasis, a targeted therapy for AD was made possible by the development in the 1990s of monoclonal antibody technology and the ensuing ability to create biologics that target specific molecules in the body – as well as bedside-to-bench research that homed in on the involvement of particular cytokines.
But there also is a “new understanding of the burden of the disease,” Dr. Simpson observed. In the last 5 years, he said, research funded by the National Eczema Association documented that AD “not only causes inflammation of the skin … but that it affects people at school and in the workplace, that people have multiple mental health comorbidities and skin infections, and that the disease profoundly affects the entire patient in ways that weren’t really recognized or appreciated.”
Having evolved in the footsteps of psoriasis, AD is at a higher starting point in terms of the safety and efficacy of its first biologic, sources said. On the other hand, AD is a much more complex and heterogeneous disease, and researchers are trying to determine which immune pathways and cytokines are most important – and in which populations.
“We’re at the beginning. We’re trying to figure out how to get 80% of patients clear or almost clear [as we can now with psoriasis biologics] rather than almost 40% [as in the dupilumab pivotal trials],” said Dr. Simpson, former cochair of the National Eczema Association’s scientific committee. Public data from ongoing phase 2 and 3 trials of other Th2 cytokine inhibitors suggest that 25%-45% of enrolled patients achieve high levels of clearance, he noted.
Emma Guttman-Yassky, MD, PhD, Sol and Clara Kest Professor and vice-chair for research in the department of dermatology at the Icahn School of Medicine at Mount Sinai, New York, said that AD’s heterogeneity involves “many factors, like ethnicity, age … and whether they have an atopic background such as asthma.”
Her research is showing, for instance, that AD in Asian and black patients is different than AD in European-American patients, and that the presence of comorbidities may well have treatment implications. She has also shown that children may have a different phenotype than adults, with greater activation of the Th17 axis that typifies psoriasis.
“For certain patients, we may need to target more than one pathway, or target a different pathway than the Th2 pathway. And treatment may be different in the setting of comorbidities,” said Dr. Guttman-Yassky, who is also director of the laboratory of inflammatory skin diseases at Mount Sinai. “We may think of one treatment – dupilumab, for example – for someone who has asthma and AD. But for patients who don’t have asthma and are Asian, for instance, or for children, we may need additional agents.”
Her research over the years on AD has taught her the importance of human studies over mouse model studies; it was in humans, she noted, that she and other investigators demonstrated “without doubt” that AD is an immune disease and not simply a barrier disease. The Th2 cytokine pathway appears to play the predominant role in AD, though “there still is a strong Th1 component,” she said.
“We’re in a better position to figure this out today [than in the past 20 or even 10 years],” said Dr. Guttman-Yassky, who recalls being told years ago that AD was a “dead end,” that it “would kill [her] career.” Given the evolution of science and the recognition of comorbidities and seriousness of dermatologic diseases, “the stars are aligned to get more [therapies] to these patients.”
Janus kinase (JAK) inhibitors are among these therapies. Three JAK inhibitors are in or have recently completed phase 3 studies for AD; two are currently approved for rheumatoid arthritis, and the other has been designed specifically for AD, Dr. Simpson pointed out. The drugs are oral small molecule drugs that block the JAK signaling pathways for certain proinflammatory cytokines.
“The JAK inhibitors are a real exciting story for dermatology,” he said. “Theoretically, by blocking more cytokines than biologics do, there could be some safety issues – that’s why we’re awaiting big phase 3 study results so we can figure out the risk-benefit balance and guide our patients as to which drug is best.”
Andrew Blauvelt, MD, MBA, president of Oregon Medical Research Center in Portland – a stand-alone dermatology clinical trial center founded in 1998 – likes to envision the evolution of drugs for dermatologic conditions as a funnel, with the most broad-acting drugs at the wide top of the funnel and the most targeted drugs at the bottom tip.
JAK inhibitors, he said, sit near the middle – more targeted and safer than cyclosporine and methotrexate, for instance, but not as targeted as the biologics now available for psoriasis and being developed for AD. “The oral medications that have been developed for psoriasis and those coming for AD are not quite as targeted to the disease,” he noted. “JAK inhibitors have great efficacy – it’s more a question of safety and being able to treat without causing collateral damage.”
Dr. Blauvelt expects the armamentarium of new drugs approved for AD to go from one (dupilumab) to seven within the next 2 years. This will include three new biologics and three new oral JAK inhibitors, he predicts. As the specialty sorts through and integrates these new drugs into practice, dermatologists will increasingly personalize treatment and will face the “nonscientific” challenge of the cost of new therapies and patient access to them, he noted.
In the meantime, said Dr. Simpson, recent drug discoveries have driven more non–pharmaceutical-funded translational research aimed at understanding the underlying biology of AD. The National Institutes of Health, for instance, “is interested in dupilumab and its impact on the skin barrier and skin defense mechanisms,” he said. “We’ll learn a lot more [in coming years].”
Spillover to other diseases
JAK inhibitors – some in oral and some in topical form – are showing efficacy in ongoing research for alopecia areata (AA) and vitiligo as well, Dr. Blauvelt said.
“We’re understanding more about the pathophysiology of these diseases, which historically have been tough diseases for dermatologists to treat,” he said. “The successes in alopecia areata and vitiligo are incredibly exciting actually – it’s very exciting to see hair and pigment coming back. And as we learn more, we should be able to develop [additional] drugs that are more disease targeted than the JAK inhibitors.”
Already, some of the biologics used to treat psoriasis have been studied in patients with hidradenitis suppurativa (HS), a disease in which painful lumps and sometimes tunnels form under the skin, with some success; adalimumab (Humira), a TNF-inhibitor, is now FDA approved for the treatment of moderate-severe HS, and studies are ongoing of IL-17 and IL-23 blockers for the disease.
“The pathophysiology [of HS] is very complex; it’s not nearly as straightforward as psoriasis, and there haven’t been any major breakthroughs yet,” Dr. Blauvelt said. “But the drugs seem to be working better than historical alternatives.”
Regarding AA, Dr. Guttman-Yassky, who is participating in a study of dupilumab for AA, recently found in a retrospective cross-sectional study that patients with the condition are more likely to have atopic comorbidities – asthma, allergic rhinitis, and AD, for instance. “The more comorbid conditions, the greater the risk of developing alopecia areata,” she said. “That could point to a potential pathogenic role of the Th2 axis in the disorder [challenging the traditional view of AA as a singularly Th1-centered disease.] The future will tell.”
Action on rare skin diseases
Both large and small companies have moved into the orphan drug space, investing in research and pursuing orphan drug indications for dermatologic conditions, because “it’s clear now in the marketplace that companies can develop effective drugs for rare disorders and be quite successful,” Dr. Orlow said.
According to a recent analysis, as a result of incentives for rare disease drug development contained in the Orphan Drug Act, 72 indications have been approved for rare skin disease, skin-related cancers, and hereditary disorders with prominent dermatologic manifestations since the law was passed in 1983 (J. Am. Acad. Dermatol. 2019;81[3]:867-77).
Epidermolysis bullosa (EB) is a good example, he and other sources said, of commercial interests merging with growing knowledge of disease pathogenesis as well as the tools needed to develop new treatments.
Research by dermatology scientists and others over the past 40 years, Dr. Ju explained, shed light on the molecular basis underlying the structure and function of the junction between the epidermis and dermis, including the pivotal role that type VII collagen plays in the normal adhesion of these two layers. Researchers then learned that, in EB, the family of genetic diseases characterized by skin fragility, “dystrophic types are caused by mutations in the gene encoding type VII collagen,” he said.
“Just as the advent of monoclonal antibodies allowed us to start attacking psoriasis and atopic dermatitis in unprecedented ways, the advent of gene therapy allows us to potentially address the fundamental molecular genetic defect of various types of EB,” Dr. Ju said.
While gene therapy is “still in its infancy,” companies have begun using the tools to address EB. One gene therapy in the pipeline – in phase 3 clinical trial testing – involves grafting back into patients with recessive dystrophic EB their skin cells that have been genetically modified to produce a correct (nonmutated) type VII collagen, he said.
Basal cell nevus syndrome, or Gorlin syndrome, a rare disease in which patients develop a multitude of basal cell carcinoma tumors, is another example of a “dermatology first” approach, Dr. Ju said. Research identified a genetic mutation that causes the hedgehog signaling pathway to be inappropriately activated in the disease, and a drug, vismodegib, was developed to inhibit this pathway. The drug was initially approved for patients with metastatic basal cell cancer and types of advanced basal cell cancer, and is now being tested in cancers affecting other organs, he said.
Basal cell cancer “is a huge market, but it was really unrecognized in the past,” Dr. Eaglstein said. “Seeing drugs come to market for basal cell cancer – this wouldn’t have happened [decades ago].”
Dr. Ju has worked in the pharmaceutical industry; all other sources in this story have worked with pharmaceutical manufacturers of treatments that are being developed or have been approved to treat dermatologic diseases mentioned in this story. In addition to Dr. Ju, Dr. Eaglstein and Dr. Orlow are cofounders of the Advancing Innovation in Dermatology group; Dr. Orlow is a member of the program committee for the organization’s dermatology summit conference.