User login
Adjuvanted flu vaccine performs better than others in young children
according to an industry-funded synthesis of six studies.
The vaccine “offers significant advances over conventional inactivated influenza vaccines and presents an acceptable safety profile in children 6 months through 5 years of age,” Sanjay S. Patel, PhD, of Novartis Vaccines and Diagnostics, Cambridge, Mass., and associates wrote in the analysis, published in the International Journal of Infectious Diseases. “The noteworthy increases in antibody responses and decreases in influenza cases following vaccination suggest an alternative for use in a population that is heavily impacted by influenza disease.”
Children are, of course, vulnerable to flu. The Centers for Disease Control and Prevention reported that 186 children died of flu during the landmark 2017-2018 flu season. That’s the highest number of pediatric flu deaths since they became a notifiable condition in 2004 (exclusive of the 2009 pandemic, when 358 pediatric deaths were reported from April 15, 2009, to October 2, 2010).The CDC said the vaccine during that flu season had an overall effectiveness level of 40%. According to research of others, however, flu vaccines are less effective in younger children than in adolescents and adults (Vaccine. 2014;32[31]:3886-94; Cochrane Database Syst Rev. 2008. doi: 10.1002/14651858.CD004879.pub3).
Fluad – a MF59-adjuvanted inactivated trivalent seasonal influenza vaccine – is used in adults over 65 in the United States and 29 other countries, and it is approved for children aged 6 months through 23 months in Canada.
Dr. Patel and associates examined the results of six studies – one phase 1b, three phase 2, and two phase 3 – that tested Fluad with or without other vaccines in 11,942 children aged 6 months to 5 years. The studies, mostly multicenter, were conducted in various countries, mainly in Europe and South and Central America, from 2006 to 2012.
In general, children in the intervention groups in the studies received two doses of the Fluad vaccine 4 weeks apart: two 0.25-mL doses for children aged 6-35 months and two 0.5-mL doses for those aged 3 years or older. In most of the studies, parallel control groups received nonadjuvanted trivalent or quadrivalent influenza vaccines.
Most participants (93%-94%) completed the studies. Solicited adverse effects were common in all groups (72% in the Fluad group vs. 67% who received IIV3 vaccines), and generally mild to moderate and resolved in 1-3 days. Unsolicited adverse effects were similar (55% and 62%, respectively) in the two flu vaccine groups. The authors wrote that “these data reflect a safety profile consistent with other licensed inactivated influenza vaccines administered to children.”
As for results, Dr. Patel and colleagues said, “HI [hemagglutination inhibition] antibody responses to both homologous and heterologous influenza strains are higher following vaccination with aIIV3, and this increase in immunogenicity is observed across all age subgroups in children aged 6 months through 5 years, and most profound in the children 6 to 36 months.”
For example, in one of the phase 3 studies when the influenza viruses were antigenically matched (homologous) for A/H1N1 among the children aged 6-35 months seroconversion was 100% for allV3 (Fluad) and 38% for IIV3-1/IIV3-4 (trivalent/quadrivalent flu vaccines); among children aged 3-5 years seroconversion was 100% for allV3 and 82% for IIV3-1/IIV3-4. For AH3N2 homologous among children aged 6-35 months, seroconversion was 98% for allV3 and 44% for IIV3-1/IIV3-4. For the B strain homologous among children aged 6-35 months, seroconversion was 88% for allV3 and 19% for IIV3-1/IIV3-4; among children aged 3-5 years seroconversion for B was 99% for allV3 and 59% for IIV3-1/IIV3-4.
In the same study when the influenza viruses were antigenically mismatched (heterologous) for A/H1N1 among children of all ages 6 months to greater than 72 months, seroconversion was 96% for allV3 (Fluad) and 44% for IIV3-1/IIV3-4; for A/H3N2 it was 98% for allV3 and 49% for IIV3-1/IIV3-4, and for the B strain it was 10% for allV3 and 3% for IIV3-1/IIV3-4.
They added that “in addition, aIIV3 had the fastest onset of immunogenicity and longest persistence of immune response, which has implications for the real-world clinical setting, where the influenza season might start earlier than expected or last longer, and second (follow-up) vaccinations may be missed.”
Dr. Patel and associates said the MF59 adjuvant in Fluad “recruits immune cells (primarily monocytes, macrophages, neutrophils, and dendritic cells) at the site of injection and differentiates them into antigen-presenting cells. With an MF59-adjuvanted vaccine, more antigen is transported from the injection site to the draining lymph node, wherein MF59 leads to T-cell activation and an increased B-cell expansion and a greater number and diversity of antibodies.”
According to goodrx.com, one syringe of Fluad 0.5 mL costs $45-$74 with coupon. The same dose of Fluzone Quadrivalent, a flu vaccine recently approved by the Food and Drug Administration for use in young children aged 6-35 months, costs $31 with coupon.
The study was funded by Novartis Vaccines and Diagnostics and Seqirus (formerly part of Novartis Vaccines and Diagnostics). The study authors disclosed employment by Novartis and Seqirus.
SOURCE: Patel SS et al. Int J Infect Dis. 2019. doi: 10.1016/j.ijid.2019.05.009.
according to an industry-funded synthesis of six studies.
The vaccine “offers significant advances over conventional inactivated influenza vaccines and presents an acceptable safety profile in children 6 months through 5 years of age,” Sanjay S. Patel, PhD, of Novartis Vaccines and Diagnostics, Cambridge, Mass., and associates wrote in the analysis, published in the International Journal of Infectious Diseases. “The noteworthy increases in antibody responses and decreases in influenza cases following vaccination suggest an alternative for use in a population that is heavily impacted by influenza disease.”
Children are, of course, vulnerable to flu. The Centers for Disease Control and Prevention reported that 186 children died of flu during the landmark 2017-2018 flu season. That’s the highest number of pediatric flu deaths since they became a notifiable condition in 2004 (exclusive of the 2009 pandemic, when 358 pediatric deaths were reported from April 15, 2009, to October 2, 2010).The CDC said the vaccine during that flu season had an overall effectiveness level of 40%. According to research of others, however, flu vaccines are less effective in younger children than in adolescents and adults (Vaccine. 2014;32[31]:3886-94; Cochrane Database Syst Rev. 2008. doi: 10.1002/14651858.CD004879.pub3).
Fluad – a MF59-adjuvanted inactivated trivalent seasonal influenza vaccine – is used in adults over 65 in the United States and 29 other countries, and it is approved for children aged 6 months through 23 months in Canada.
Dr. Patel and associates examined the results of six studies – one phase 1b, three phase 2, and two phase 3 – that tested Fluad with or without other vaccines in 11,942 children aged 6 months to 5 years. The studies, mostly multicenter, were conducted in various countries, mainly in Europe and South and Central America, from 2006 to 2012.
In general, children in the intervention groups in the studies received two doses of the Fluad vaccine 4 weeks apart: two 0.25-mL doses for children aged 6-35 months and two 0.5-mL doses for those aged 3 years or older. In most of the studies, parallel control groups received nonadjuvanted trivalent or quadrivalent influenza vaccines.
Most participants (93%-94%) completed the studies. Solicited adverse effects were common in all groups (72% in the Fluad group vs. 67% who received IIV3 vaccines), and generally mild to moderate and resolved in 1-3 days. Unsolicited adverse effects were similar (55% and 62%, respectively) in the two flu vaccine groups. The authors wrote that “these data reflect a safety profile consistent with other licensed inactivated influenza vaccines administered to children.”
As for results, Dr. Patel and colleagues said, “HI [hemagglutination inhibition] antibody responses to both homologous and heterologous influenza strains are higher following vaccination with aIIV3, and this increase in immunogenicity is observed across all age subgroups in children aged 6 months through 5 years, and most profound in the children 6 to 36 months.”
For example, in one of the phase 3 studies when the influenza viruses were antigenically matched (homologous) for A/H1N1 among the children aged 6-35 months seroconversion was 100% for allV3 (Fluad) and 38% for IIV3-1/IIV3-4 (trivalent/quadrivalent flu vaccines); among children aged 3-5 years seroconversion was 100% for allV3 and 82% for IIV3-1/IIV3-4. For AH3N2 homologous among children aged 6-35 months, seroconversion was 98% for allV3 and 44% for IIV3-1/IIV3-4. For the B strain homologous among children aged 6-35 months, seroconversion was 88% for allV3 and 19% for IIV3-1/IIV3-4; among children aged 3-5 years seroconversion for B was 99% for allV3 and 59% for IIV3-1/IIV3-4.
In the same study when the influenza viruses were antigenically mismatched (heterologous) for A/H1N1 among children of all ages 6 months to greater than 72 months, seroconversion was 96% for allV3 (Fluad) and 44% for IIV3-1/IIV3-4; for A/H3N2 it was 98% for allV3 and 49% for IIV3-1/IIV3-4, and for the B strain it was 10% for allV3 and 3% for IIV3-1/IIV3-4.
They added that “in addition, aIIV3 had the fastest onset of immunogenicity and longest persistence of immune response, which has implications for the real-world clinical setting, where the influenza season might start earlier than expected or last longer, and second (follow-up) vaccinations may be missed.”
Dr. Patel and associates said the MF59 adjuvant in Fluad “recruits immune cells (primarily monocytes, macrophages, neutrophils, and dendritic cells) at the site of injection and differentiates them into antigen-presenting cells. With an MF59-adjuvanted vaccine, more antigen is transported from the injection site to the draining lymph node, wherein MF59 leads to T-cell activation and an increased B-cell expansion and a greater number and diversity of antibodies.”
According to goodrx.com, one syringe of Fluad 0.5 mL costs $45-$74 with coupon. The same dose of Fluzone Quadrivalent, a flu vaccine recently approved by the Food and Drug Administration for use in young children aged 6-35 months, costs $31 with coupon.
The study was funded by Novartis Vaccines and Diagnostics and Seqirus (formerly part of Novartis Vaccines and Diagnostics). The study authors disclosed employment by Novartis and Seqirus.
SOURCE: Patel SS et al. Int J Infect Dis. 2019. doi: 10.1016/j.ijid.2019.05.009.
according to an industry-funded synthesis of six studies.
The vaccine “offers significant advances over conventional inactivated influenza vaccines and presents an acceptable safety profile in children 6 months through 5 years of age,” Sanjay S. Patel, PhD, of Novartis Vaccines and Diagnostics, Cambridge, Mass., and associates wrote in the analysis, published in the International Journal of Infectious Diseases. “The noteworthy increases in antibody responses and decreases in influenza cases following vaccination suggest an alternative for use in a population that is heavily impacted by influenza disease.”
Children are, of course, vulnerable to flu. The Centers for Disease Control and Prevention reported that 186 children died of flu during the landmark 2017-2018 flu season. That’s the highest number of pediatric flu deaths since they became a notifiable condition in 2004 (exclusive of the 2009 pandemic, when 358 pediatric deaths were reported from April 15, 2009, to October 2, 2010).The CDC said the vaccine during that flu season had an overall effectiveness level of 40%. According to research of others, however, flu vaccines are less effective in younger children than in adolescents and adults (Vaccine. 2014;32[31]:3886-94; Cochrane Database Syst Rev. 2008. doi: 10.1002/14651858.CD004879.pub3).
Fluad – a MF59-adjuvanted inactivated trivalent seasonal influenza vaccine – is used in adults over 65 in the United States and 29 other countries, and it is approved for children aged 6 months through 23 months in Canada.
Dr. Patel and associates examined the results of six studies – one phase 1b, three phase 2, and two phase 3 – that tested Fluad with or without other vaccines in 11,942 children aged 6 months to 5 years. The studies, mostly multicenter, were conducted in various countries, mainly in Europe and South and Central America, from 2006 to 2012.
In general, children in the intervention groups in the studies received two doses of the Fluad vaccine 4 weeks apart: two 0.25-mL doses for children aged 6-35 months and two 0.5-mL doses for those aged 3 years or older. In most of the studies, parallel control groups received nonadjuvanted trivalent or quadrivalent influenza vaccines.
Most participants (93%-94%) completed the studies. Solicited adverse effects were common in all groups (72% in the Fluad group vs. 67% who received IIV3 vaccines), and generally mild to moderate and resolved in 1-3 days. Unsolicited adverse effects were similar (55% and 62%, respectively) in the two flu vaccine groups. The authors wrote that “these data reflect a safety profile consistent with other licensed inactivated influenza vaccines administered to children.”
As for results, Dr. Patel and colleagues said, “HI [hemagglutination inhibition] antibody responses to both homologous and heterologous influenza strains are higher following vaccination with aIIV3, and this increase in immunogenicity is observed across all age subgroups in children aged 6 months through 5 years, and most profound in the children 6 to 36 months.”
For example, in one of the phase 3 studies when the influenza viruses were antigenically matched (homologous) for A/H1N1 among the children aged 6-35 months seroconversion was 100% for allV3 (Fluad) and 38% for IIV3-1/IIV3-4 (trivalent/quadrivalent flu vaccines); among children aged 3-5 years seroconversion was 100% for allV3 and 82% for IIV3-1/IIV3-4. For AH3N2 homologous among children aged 6-35 months, seroconversion was 98% for allV3 and 44% for IIV3-1/IIV3-4. For the B strain homologous among children aged 6-35 months, seroconversion was 88% for allV3 and 19% for IIV3-1/IIV3-4; among children aged 3-5 years seroconversion for B was 99% for allV3 and 59% for IIV3-1/IIV3-4.
In the same study when the influenza viruses were antigenically mismatched (heterologous) for A/H1N1 among children of all ages 6 months to greater than 72 months, seroconversion was 96% for allV3 (Fluad) and 44% for IIV3-1/IIV3-4; for A/H3N2 it was 98% for allV3 and 49% for IIV3-1/IIV3-4, and for the B strain it was 10% for allV3 and 3% for IIV3-1/IIV3-4.
They added that “in addition, aIIV3 had the fastest onset of immunogenicity and longest persistence of immune response, which has implications for the real-world clinical setting, where the influenza season might start earlier than expected or last longer, and second (follow-up) vaccinations may be missed.”
Dr. Patel and associates said the MF59 adjuvant in Fluad “recruits immune cells (primarily monocytes, macrophages, neutrophils, and dendritic cells) at the site of injection and differentiates them into antigen-presenting cells. With an MF59-adjuvanted vaccine, more antigen is transported from the injection site to the draining lymph node, wherein MF59 leads to T-cell activation and an increased B-cell expansion and a greater number and diversity of antibodies.”
According to goodrx.com, one syringe of Fluad 0.5 mL costs $45-$74 with coupon. The same dose of Fluzone Quadrivalent, a flu vaccine recently approved by the Food and Drug Administration for use in young children aged 6-35 months, costs $31 with coupon.
The study was funded by Novartis Vaccines and Diagnostics and Seqirus (formerly part of Novartis Vaccines and Diagnostics). The study authors disclosed employment by Novartis and Seqirus.
SOURCE: Patel SS et al. Int J Infect Dis. 2019. doi: 10.1016/j.ijid.2019.05.009.
FROM INTERNATIONAL JOURNAL OF INFECTIOUS DISEASES
Plant-based foods could keep type 2 diabetes at bay
according to a new systematic review and meta-analysis of nine observational studies.
The findings aren’t conclusive, but the study authors wrote in JAMA Internal Medicine that they suggest that “plant-based dietary patterns were associated with lower risk of type 2 diabetes, even after adjustment for [body mass index].”
According to 2015 figures provided by the American Diabetes Association, about 29 million people in the United States have type 2 diabetes. Overall, diabetes contributes to hundreds of thousands of deaths each year, which makes it the seventh-leading cause of death in the nation.
For the new analysis, researchers led by Frank Qian, MPH, of Harvard T.H. Chan School of Public Health included nine studies that examined diet and type 2 diabetes. In all, the studies included 307,099 participants, and there were 23,544 cases of incident type 2 diabetes. They were conducted in five countries, including the United States, and tracked participants for 2-28 years; the studies were all published within the last 11 years. The mean ages of participants ranged from 36-65 years.
The meta-analysis linked higher consumption of plant-based foods to a 23% reduced risk of type 2 diabetes, compared with lower consumption (relative risk, 0.77; 95% confidence interval, 0.71-0.84; P = .07 for heterogeneity). The risk dipped even further (down to 30%) when the researchers analyzed four studies that focused on healthy plant-based foods, such as fruits and vegetables, instead of foods such as refined grains, starches, and sugars (RR, 0.70; 95% CI, 0.62-0.79).
The researchers suggested that plant-based diets may lower the risk of diabetes type 2 by limiting weight gain. They also noted various limitations to their analysis, such as the reliance on self-reports and the observational nature of the studies.
Still, “in general populations that do not practice strict vegetarian or vegan diets, replacing animal products with healthful plant-based foods is likely to exert a significant reduction in the risk of diabetes,” the authors wrote.
The study was funded by the National Institutes of Health, and one author received support from the National Institute of Diabetes and Digestive and Kidney Diseases. The remaining authors reported no conflicts of interest withing the scope of this study.
SOURCE: Qian F et al. JAMA Internal Medicine. 2019 Jul 22. doi: 10.1001/jamainternmed.2019.2195.
according to a new systematic review and meta-analysis of nine observational studies.
The findings aren’t conclusive, but the study authors wrote in JAMA Internal Medicine that they suggest that “plant-based dietary patterns were associated with lower risk of type 2 diabetes, even after adjustment for [body mass index].”
According to 2015 figures provided by the American Diabetes Association, about 29 million people in the United States have type 2 diabetes. Overall, diabetes contributes to hundreds of thousands of deaths each year, which makes it the seventh-leading cause of death in the nation.
For the new analysis, researchers led by Frank Qian, MPH, of Harvard T.H. Chan School of Public Health included nine studies that examined diet and type 2 diabetes. In all, the studies included 307,099 participants, and there were 23,544 cases of incident type 2 diabetes. They were conducted in five countries, including the United States, and tracked participants for 2-28 years; the studies were all published within the last 11 years. The mean ages of participants ranged from 36-65 years.
The meta-analysis linked higher consumption of plant-based foods to a 23% reduced risk of type 2 diabetes, compared with lower consumption (relative risk, 0.77; 95% confidence interval, 0.71-0.84; P = .07 for heterogeneity). The risk dipped even further (down to 30%) when the researchers analyzed four studies that focused on healthy plant-based foods, such as fruits and vegetables, instead of foods such as refined grains, starches, and sugars (RR, 0.70; 95% CI, 0.62-0.79).
The researchers suggested that plant-based diets may lower the risk of diabetes type 2 by limiting weight gain. They also noted various limitations to their analysis, such as the reliance on self-reports and the observational nature of the studies.
Still, “in general populations that do not practice strict vegetarian or vegan diets, replacing animal products with healthful plant-based foods is likely to exert a significant reduction in the risk of diabetes,” the authors wrote.
The study was funded by the National Institutes of Health, and one author received support from the National Institute of Diabetes and Digestive and Kidney Diseases. The remaining authors reported no conflicts of interest withing the scope of this study.
SOURCE: Qian F et al. JAMA Internal Medicine. 2019 Jul 22. doi: 10.1001/jamainternmed.2019.2195.
according to a new systematic review and meta-analysis of nine observational studies.
The findings aren’t conclusive, but the study authors wrote in JAMA Internal Medicine that they suggest that “plant-based dietary patterns were associated with lower risk of type 2 diabetes, even after adjustment for [body mass index].”
According to 2015 figures provided by the American Diabetes Association, about 29 million people in the United States have type 2 diabetes. Overall, diabetes contributes to hundreds of thousands of deaths each year, which makes it the seventh-leading cause of death in the nation.
For the new analysis, researchers led by Frank Qian, MPH, of Harvard T.H. Chan School of Public Health included nine studies that examined diet and type 2 diabetes. In all, the studies included 307,099 participants, and there were 23,544 cases of incident type 2 diabetes. They were conducted in five countries, including the United States, and tracked participants for 2-28 years; the studies were all published within the last 11 years. The mean ages of participants ranged from 36-65 years.
The meta-analysis linked higher consumption of plant-based foods to a 23% reduced risk of type 2 diabetes, compared with lower consumption (relative risk, 0.77; 95% confidence interval, 0.71-0.84; P = .07 for heterogeneity). The risk dipped even further (down to 30%) when the researchers analyzed four studies that focused on healthy plant-based foods, such as fruits and vegetables, instead of foods such as refined grains, starches, and sugars (RR, 0.70; 95% CI, 0.62-0.79).
The researchers suggested that plant-based diets may lower the risk of diabetes type 2 by limiting weight gain. They also noted various limitations to their analysis, such as the reliance on self-reports and the observational nature of the studies.
Still, “in general populations that do not practice strict vegetarian or vegan diets, replacing animal products with healthful plant-based foods is likely to exert a significant reduction in the risk of diabetes,” the authors wrote.
The study was funded by the National Institutes of Health, and one author received support from the National Institute of Diabetes and Digestive and Kidney Diseases. The remaining authors reported no conflicts of interest withing the scope of this study.
SOURCE: Qian F et al. JAMA Internal Medicine. 2019 Jul 22. doi: 10.1001/jamainternmed.2019.2195.
FROM JAMA INTERNAL MEDICINE
Adjuvanted influenza vaccine appears safe for at-risk children
according to a study in the International Journal of Infectious Diseases.
Sanjay S. Patel, PhD, of Novartis Vaccines and Diagnostics, Cambridge, Mass., and colleagues performed a retrospective analysis on an integrated dataset that drew from six randomized clinical trials comparing aIIV3 with nonadjuvanted trivalent inactivated influenza vaccine (IIV3). The dataset comprised 10,794 patients aged 6 months through 5 years, of whom 373 (3%) were deemed at risk of influenza complications after review of their medical history for conditions such as heart disease, asthma, and endocrine disorders.
The rates of solicited adverse events (such as erythema, diarrhea, fever, and localized swelling) were 74% in the aIIV3 group and 73% in the IIV3 group. The rates for any unsolicited adverse events (such as upper respiratory tract infection) for aIIV3 and IIV3 were 54% and 59%, respectively (Int J Infect Dis. 2019. doi: 10.1016/j.ijid.2019.04.023).
One of the six studies included in the dataset randomized 2,655 children for immunogenicity analyses, of whom 103 (4%) were deemed at risk. Hemagglutination inhibition assay geometric mean titers against homologous A/H1N1, A/H3N2, and B strains 21 days after the second of two doses of vaccines were two to three times higher in the aIIV3 than in the IIV3 group, which suggests that aIIV3 is more immunogenic than IIV3. As the investigators noted, this is likely because the adjuvanted vaccine induces a greater magnitude of immune response to the vaccine, something already lower in children than in adults, as well as more breadth of response, meaning the response goes beyond strains included in the vaccines.
The small number of at-risk children in the study poses a limitation on its findings. Dr. Patel and associates said that, regardless, the results of immunogenicity analyses were strong. “Overall, this analysis indicates that aIIV3 has a similar safety profile in young children with underlying medical conditions, consistent with other licensed inactivated influenza vaccines.”
Novartis Vaccines and Diagnostics originally funded the study, but was later acquired by CSL Group and now operates as Seqirus, which continued funding for the study. The authors were employees of one or the other of these companies.
according to a study in the International Journal of Infectious Diseases.
Sanjay S. Patel, PhD, of Novartis Vaccines and Diagnostics, Cambridge, Mass., and colleagues performed a retrospective analysis on an integrated dataset that drew from six randomized clinical trials comparing aIIV3 with nonadjuvanted trivalent inactivated influenza vaccine (IIV3). The dataset comprised 10,794 patients aged 6 months through 5 years, of whom 373 (3%) were deemed at risk of influenza complications after review of their medical history for conditions such as heart disease, asthma, and endocrine disorders.
The rates of solicited adverse events (such as erythema, diarrhea, fever, and localized swelling) were 74% in the aIIV3 group and 73% in the IIV3 group. The rates for any unsolicited adverse events (such as upper respiratory tract infection) for aIIV3 and IIV3 were 54% and 59%, respectively (Int J Infect Dis. 2019. doi: 10.1016/j.ijid.2019.04.023).
One of the six studies included in the dataset randomized 2,655 children for immunogenicity analyses, of whom 103 (4%) were deemed at risk. Hemagglutination inhibition assay geometric mean titers against homologous A/H1N1, A/H3N2, and B strains 21 days after the second of two doses of vaccines were two to three times higher in the aIIV3 than in the IIV3 group, which suggests that aIIV3 is more immunogenic than IIV3. As the investigators noted, this is likely because the adjuvanted vaccine induces a greater magnitude of immune response to the vaccine, something already lower in children than in adults, as well as more breadth of response, meaning the response goes beyond strains included in the vaccines.
The small number of at-risk children in the study poses a limitation on its findings. Dr. Patel and associates said that, regardless, the results of immunogenicity analyses were strong. “Overall, this analysis indicates that aIIV3 has a similar safety profile in young children with underlying medical conditions, consistent with other licensed inactivated influenza vaccines.”
Novartis Vaccines and Diagnostics originally funded the study, but was later acquired by CSL Group and now operates as Seqirus, which continued funding for the study. The authors were employees of one or the other of these companies.
according to a study in the International Journal of Infectious Diseases.
Sanjay S. Patel, PhD, of Novartis Vaccines and Diagnostics, Cambridge, Mass., and colleagues performed a retrospective analysis on an integrated dataset that drew from six randomized clinical trials comparing aIIV3 with nonadjuvanted trivalent inactivated influenza vaccine (IIV3). The dataset comprised 10,794 patients aged 6 months through 5 years, of whom 373 (3%) were deemed at risk of influenza complications after review of their medical history for conditions such as heart disease, asthma, and endocrine disorders.
The rates of solicited adverse events (such as erythema, diarrhea, fever, and localized swelling) were 74% in the aIIV3 group and 73% in the IIV3 group. The rates for any unsolicited adverse events (such as upper respiratory tract infection) for aIIV3 and IIV3 were 54% and 59%, respectively (Int J Infect Dis. 2019. doi: 10.1016/j.ijid.2019.04.023).
One of the six studies included in the dataset randomized 2,655 children for immunogenicity analyses, of whom 103 (4%) were deemed at risk. Hemagglutination inhibition assay geometric mean titers against homologous A/H1N1, A/H3N2, and B strains 21 days after the second of two doses of vaccines were two to three times higher in the aIIV3 than in the IIV3 group, which suggests that aIIV3 is more immunogenic than IIV3. As the investigators noted, this is likely because the adjuvanted vaccine induces a greater magnitude of immune response to the vaccine, something already lower in children than in adults, as well as more breadth of response, meaning the response goes beyond strains included in the vaccines.
The small number of at-risk children in the study poses a limitation on its findings. Dr. Patel and associates said that, regardless, the results of immunogenicity analyses were strong. “Overall, this analysis indicates that aIIV3 has a similar safety profile in young children with underlying medical conditions, consistent with other licensed inactivated influenza vaccines.”
Novartis Vaccines and Diagnostics originally funded the study, but was later acquired by CSL Group and now operates as Seqirus, which continued funding for the study. The authors were employees of one or the other of these companies.
FROM THE INTERNATIONAL JOURNAL OF INFECTIOUS DISEASES
Filgotinib fares well in RA trial of inadequate methotrexate responders
MADRID – (cDMARD) in a phase 3 study.
The primary outcome results of the FINCH 1 study, which were presented at the European Congress of Rheumatology, showed that significantly more patients treated with filgotinib than placebo were able to achieve 20% improvement in American College of Rheumatology response criteria (ACR20).
At week 12, an ACR20 response was achieved by 69.8% of 480 patients treated with filgotinib 100 mg/day, 76.6% of 475 treated with filgotinib 200 mg/day, and 49.9% of 475 given a matching daily placebo (P less than .0001 for both comparisons). Adalimumab (Humira; 40 mg every 2 weeks) was used as an active comparator in the trial, and 70.8% of 325 patients treated with this biologic drug achieved an ACR20.
Similar patterns were seen for the ACR50 and ACR70 responses: more than 50% of patients treated with filgotinib or adalimumab achieved an ACR50 versus 33.3% of patients treated with placebo. The ACR70 response rate was more than 30% in patients treated with either biologic, compared against 14.9% with placebo.
The percentages of patients in the filgotinib 100-mg, filgotinib 200-mg, adalimumab, and placebo arms who achieved a 28-joint Disease Activity Score using C-reactive protein (DAS28-CRP) of 3.2 or less at 12 weeks were 38.8%, 49.9%, 43.4%, and 23.4%. At 24 weeks, the rates were 53.1%, 60.6%, 50.5%, and 33.7%.
At 12 weeks, analysis showed that filgotinib 200 mg was noninferior to adalimumab in achieving a DAS28-CRP of 3.2 or less.
These study data, together with the results of two other phase 3 studies – FINCH 2 and FINCH 3 – will be used to submit a new drug application to the Food and Drug Administration for the use of filgotinib in the treatment of RA later this year, the drug’s developer, Gilead Sciences, announced on July 1. Each of the trials has addressed a different population of RA patients; while FINCH 1 looked at inadequate responders to methotrexate, FINCH 2 looked at those with an inadequate response to biologic DMARDs, and FINCH 3 recruited RA patients who were naive to methotrexate therapy.
FINCH 1 was a 1-year study, said presenting study investigator Bernard Combe, MD, PhD, professor of rheumatology at Montpellier (France) University and head of the bone and joint diseases department at the university. A total of 1,759 patients were randomized and 1,755 received study treatment with filgotinib, adalimumab, or placebo in addition to methotrexate. Data for the first 24 weeks were presented.
Dr. Combe and coauthors used hierarchical statistical testing to first compare the 200-mg dose versus placebo for the primary endpoint, and then, if positive, the percentage of patients at 12 weeks achieving a DAS28-CRP score of 3.2 or less and the score at 12 weeks on the Health Assessment Questionnaire – Disability Index (HAQ-DI), and then the DAS28-CRP again at 24 weeks. This was repeated with the 100-mg dose until finally noninferiority of the 200-mg dose versus adalimumab in DAS28-CRP at 12 weeks was tested.
Other findings included a significant reduction in radiographic progression at week 24 with both doses of filgotinib versus placebo; improvements in HAQ-DI and Functional Assessment of Chronic Illness Therapy-Fatigue scores also were seen at 12 and 24 weeks.
“The selective JAK1 inhibitor filgotinib, at doses of 200 and 100 mg per day, led to significant improvement in symptoms of RA patients with inadequate response to methotrexate,” Dr. Combe concluded. It “prevented radiographic progression, and improved physical function compared to placebo.”
Importantly, the drug was “well tolerated” and “a low frequency of venous thrombotic events, serious infections, and other adverse events of interest was observed.”
Commenting on the study during the Q&A session that followed Dr. Combe’s presentation, Roy M. Fleischmann, MD, clinical professor of medicine at the University of Texas Southwestern Medical Center in Dallas, noted that the choice of DAS28-CRP was “very unusual” as an endpoint after the ACR20 as it’s “almost always an ACR50 or 70.” There was also a “very high placebo response.”
Dr. Combe responded that he “wasn’t so surprised by the high placebo response. You know that this has been shown previously in some other trials.” As to why, he noted that there was an ongoing analysis but also proposed two reasons: First, the geographic region – with more than 1,700 patients from all over the world included in the trial, there could be variation in the placebo responses. Second, methotrexate might still be having a minor effect when the trial started.
The study was sponsored by Gilead Sciences in collaboration with Galapagos NV. Dr. Combe has received honoraria from AbbVie, Bristol-Myers Squibb, Gilead, Janssen, Eli Lilly, Merck Sharp & Dohme, Novartis, Pfizer, UCB, Genzyme, Sanofi, Regeneron, Sun Pharma Advanced Research, Boehringer Ingelheim, and Flexion. Dr. Combe is a shareholder in Novartis.
SOURCE: Combe B et al. Ann Rheum Dis. Jun 2019;78(Suppl 2):77-8. Abstract LB0001, doi: 10.1136/annrheumdis-2019-eular.8676
MADRID – (cDMARD) in a phase 3 study.
The primary outcome results of the FINCH 1 study, which were presented at the European Congress of Rheumatology, showed that significantly more patients treated with filgotinib than placebo were able to achieve 20% improvement in American College of Rheumatology response criteria (ACR20).
At week 12, an ACR20 response was achieved by 69.8% of 480 patients treated with filgotinib 100 mg/day, 76.6% of 475 treated with filgotinib 200 mg/day, and 49.9% of 475 given a matching daily placebo (P less than .0001 for both comparisons). Adalimumab (Humira; 40 mg every 2 weeks) was used as an active comparator in the trial, and 70.8% of 325 patients treated with this biologic drug achieved an ACR20.
Similar patterns were seen for the ACR50 and ACR70 responses: more than 50% of patients treated with filgotinib or adalimumab achieved an ACR50 versus 33.3% of patients treated with placebo. The ACR70 response rate was more than 30% in patients treated with either biologic, compared against 14.9% with placebo.
The percentages of patients in the filgotinib 100-mg, filgotinib 200-mg, adalimumab, and placebo arms who achieved a 28-joint Disease Activity Score using C-reactive protein (DAS28-CRP) of 3.2 or less at 12 weeks were 38.8%, 49.9%, 43.4%, and 23.4%. At 24 weeks, the rates were 53.1%, 60.6%, 50.5%, and 33.7%.
At 12 weeks, analysis showed that filgotinib 200 mg was noninferior to adalimumab in achieving a DAS28-CRP of 3.2 or less.
These study data, together with the results of two other phase 3 studies – FINCH 2 and FINCH 3 – will be used to submit a new drug application to the Food and Drug Administration for the use of filgotinib in the treatment of RA later this year, the drug’s developer, Gilead Sciences, announced on July 1. Each of the trials has addressed a different population of RA patients; while FINCH 1 looked at inadequate responders to methotrexate, FINCH 2 looked at those with an inadequate response to biologic DMARDs, and FINCH 3 recruited RA patients who were naive to methotrexate therapy.
FINCH 1 was a 1-year study, said presenting study investigator Bernard Combe, MD, PhD, professor of rheumatology at Montpellier (France) University and head of the bone and joint diseases department at the university. A total of 1,759 patients were randomized and 1,755 received study treatment with filgotinib, adalimumab, or placebo in addition to methotrexate. Data for the first 24 weeks were presented.
Dr. Combe and coauthors used hierarchical statistical testing to first compare the 200-mg dose versus placebo for the primary endpoint, and then, if positive, the percentage of patients at 12 weeks achieving a DAS28-CRP score of 3.2 or less and the score at 12 weeks on the Health Assessment Questionnaire – Disability Index (HAQ-DI), and then the DAS28-CRP again at 24 weeks. This was repeated with the 100-mg dose until finally noninferiority of the 200-mg dose versus adalimumab in DAS28-CRP at 12 weeks was tested.
Other findings included a significant reduction in radiographic progression at week 24 with both doses of filgotinib versus placebo; improvements in HAQ-DI and Functional Assessment of Chronic Illness Therapy-Fatigue scores also were seen at 12 and 24 weeks.
“The selective JAK1 inhibitor filgotinib, at doses of 200 and 100 mg per day, led to significant improvement in symptoms of RA patients with inadequate response to methotrexate,” Dr. Combe concluded. It “prevented radiographic progression, and improved physical function compared to placebo.”
Importantly, the drug was “well tolerated” and “a low frequency of venous thrombotic events, serious infections, and other adverse events of interest was observed.”
Commenting on the study during the Q&A session that followed Dr. Combe’s presentation, Roy M. Fleischmann, MD, clinical professor of medicine at the University of Texas Southwestern Medical Center in Dallas, noted that the choice of DAS28-CRP was “very unusual” as an endpoint after the ACR20 as it’s “almost always an ACR50 or 70.” There was also a “very high placebo response.”
Dr. Combe responded that he “wasn’t so surprised by the high placebo response. You know that this has been shown previously in some other trials.” As to why, he noted that there was an ongoing analysis but also proposed two reasons: First, the geographic region – with more than 1,700 patients from all over the world included in the trial, there could be variation in the placebo responses. Second, methotrexate might still be having a minor effect when the trial started.
The study was sponsored by Gilead Sciences in collaboration with Galapagos NV. Dr. Combe has received honoraria from AbbVie, Bristol-Myers Squibb, Gilead, Janssen, Eli Lilly, Merck Sharp & Dohme, Novartis, Pfizer, UCB, Genzyme, Sanofi, Regeneron, Sun Pharma Advanced Research, Boehringer Ingelheim, and Flexion. Dr. Combe is a shareholder in Novartis.
SOURCE: Combe B et al. Ann Rheum Dis. Jun 2019;78(Suppl 2):77-8. Abstract LB0001, doi: 10.1136/annrheumdis-2019-eular.8676
MADRID – (cDMARD) in a phase 3 study.
The primary outcome results of the FINCH 1 study, which were presented at the European Congress of Rheumatology, showed that significantly more patients treated with filgotinib than placebo were able to achieve 20% improvement in American College of Rheumatology response criteria (ACR20).
At week 12, an ACR20 response was achieved by 69.8% of 480 patients treated with filgotinib 100 mg/day, 76.6% of 475 treated with filgotinib 200 mg/day, and 49.9% of 475 given a matching daily placebo (P less than .0001 for both comparisons). Adalimumab (Humira; 40 mg every 2 weeks) was used as an active comparator in the trial, and 70.8% of 325 patients treated with this biologic drug achieved an ACR20.
Similar patterns were seen for the ACR50 and ACR70 responses: more than 50% of patients treated with filgotinib or adalimumab achieved an ACR50 versus 33.3% of patients treated with placebo. The ACR70 response rate was more than 30% in patients treated with either biologic, compared against 14.9% with placebo.
The percentages of patients in the filgotinib 100-mg, filgotinib 200-mg, adalimumab, and placebo arms who achieved a 28-joint Disease Activity Score using C-reactive protein (DAS28-CRP) of 3.2 or less at 12 weeks were 38.8%, 49.9%, 43.4%, and 23.4%. At 24 weeks, the rates were 53.1%, 60.6%, 50.5%, and 33.7%.
At 12 weeks, analysis showed that filgotinib 200 mg was noninferior to adalimumab in achieving a DAS28-CRP of 3.2 or less.
These study data, together with the results of two other phase 3 studies – FINCH 2 and FINCH 3 – will be used to submit a new drug application to the Food and Drug Administration for the use of filgotinib in the treatment of RA later this year, the drug’s developer, Gilead Sciences, announced on July 1. Each of the trials has addressed a different population of RA patients; while FINCH 1 looked at inadequate responders to methotrexate, FINCH 2 looked at those with an inadequate response to biologic DMARDs, and FINCH 3 recruited RA patients who were naive to methotrexate therapy.
FINCH 1 was a 1-year study, said presenting study investigator Bernard Combe, MD, PhD, professor of rheumatology at Montpellier (France) University and head of the bone and joint diseases department at the university. A total of 1,759 patients were randomized and 1,755 received study treatment with filgotinib, adalimumab, or placebo in addition to methotrexate. Data for the first 24 weeks were presented.
Dr. Combe and coauthors used hierarchical statistical testing to first compare the 200-mg dose versus placebo for the primary endpoint, and then, if positive, the percentage of patients at 12 weeks achieving a DAS28-CRP score of 3.2 or less and the score at 12 weeks on the Health Assessment Questionnaire – Disability Index (HAQ-DI), and then the DAS28-CRP again at 24 weeks. This was repeated with the 100-mg dose until finally noninferiority of the 200-mg dose versus adalimumab in DAS28-CRP at 12 weeks was tested.
Other findings included a significant reduction in radiographic progression at week 24 with both doses of filgotinib versus placebo; improvements in HAQ-DI and Functional Assessment of Chronic Illness Therapy-Fatigue scores also were seen at 12 and 24 weeks.
“The selective JAK1 inhibitor filgotinib, at doses of 200 and 100 mg per day, led to significant improvement in symptoms of RA patients with inadequate response to methotrexate,” Dr. Combe concluded. It “prevented radiographic progression, and improved physical function compared to placebo.”
Importantly, the drug was “well tolerated” and “a low frequency of venous thrombotic events, serious infections, and other adverse events of interest was observed.”
Commenting on the study during the Q&A session that followed Dr. Combe’s presentation, Roy M. Fleischmann, MD, clinical professor of medicine at the University of Texas Southwestern Medical Center in Dallas, noted that the choice of DAS28-CRP was “very unusual” as an endpoint after the ACR20 as it’s “almost always an ACR50 or 70.” There was also a “very high placebo response.”
Dr. Combe responded that he “wasn’t so surprised by the high placebo response. You know that this has been shown previously in some other trials.” As to why, he noted that there was an ongoing analysis but also proposed two reasons: First, the geographic region – with more than 1,700 patients from all over the world included in the trial, there could be variation in the placebo responses. Second, methotrexate might still be having a minor effect when the trial started.
The study was sponsored by Gilead Sciences in collaboration with Galapagos NV. Dr. Combe has received honoraria from AbbVie, Bristol-Myers Squibb, Gilead, Janssen, Eli Lilly, Merck Sharp & Dohme, Novartis, Pfizer, UCB, Genzyme, Sanofi, Regeneron, Sun Pharma Advanced Research, Boehringer Ingelheim, and Flexion. Dr. Combe is a shareholder in Novartis.
SOURCE: Combe B et al. Ann Rheum Dis. Jun 2019;78(Suppl 2):77-8. Abstract LB0001, doi: 10.1136/annrheumdis-2019-eular.8676
REPORTING FROM EULAR 2019 CONGRESS
Consider a Donation to the SVS PAC
The SVS Political Action Committee has set an aggressive fundraising goal for this current 2020 election cycle, and your contribution is critical to helping the PAC to meet this goal. The SVS PAC is one of the most effective tools for communicating with policymakers on Capitol Hill to make the greatest impact on legislative issues that affect your patients and your practices. Contributions allow the PAC Committee to establish strong relationships with members of Congress and cultivate congressional champions for our legislative and regulatory priorities. Make your donation or enhance your previously made donation to the SVS PAC here. Want to learn more? Click here.
The SVS Political Action Committee has set an aggressive fundraising goal for this current 2020 election cycle, and your contribution is critical to helping the PAC to meet this goal. The SVS PAC is one of the most effective tools for communicating with policymakers on Capitol Hill to make the greatest impact on legislative issues that affect your patients and your practices. Contributions allow the PAC Committee to establish strong relationships with members of Congress and cultivate congressional champions for our legislative and regulatory priorities. Make your donation or enhance your previously made donation to the SVS PAC here. Want to learn more? Click here.
The SVS Political Action Committee has set an aggressive fundraising goal for this current 2020 election cycle, and your contribution is critical to helping the PAC to meet this goal. The SVS PAC is one of the most effective tools for communicating with policymakers on Capitol Hill to make the greatest impact on legislative issues that affect your patients and your practices. Contributions allow the PAC Committee to establish strong relationships with members of Congress and cultivate congressional champions for our legislative and regulatory priorities. Make your donation or enhance your previously made donation to the SVS PAC here. Want to learn more? Click here.
Skin safety gap divides white, older from nonwhite, younger
of passersby and skin-cancer screening attendees in Washington, D.C.
“These findings highlight the importance of tailoring free skin cancer screening events for nonwhite and younger populations,” senior author Adam Friedman, MD, professor and interim chair of dermatology at George Washington University, Washington, said in a statement provided by the institution. “While free screening events are important, we also have to think about comprehensive, community-based solutions that reach broader demographic populations than skin cancer screenings alone.”
For the new study, which appears in the July 2019 issue of Journal of Drugs in Dermatology, researchers led by Emily C. Murphy, BS, of George Washington University, sought to better understand skin safety precautions in the population beyond those who attend skin cancer screenings (J Drugs Dermatol. 2019;18[7]:649-53).
The study authors surveyed 285 passersby at six locations in Washington, D.C. (65% were female, 47% were under age 31, 48% were white, and 29% were black) and 144 attendees at a free skin cancer screening at George Washington University (70% were female, 16% were under 31, 44% were over 60, 73% were white, and 14% were black).
The attendees at the screening event were much more likely to engage in sun safety habits that are linked to lower risk of squamous cell carcinoma, basal cell carcinoma, and melanoma: 34% always used sunscreen vs. 19% of the public group (P = .001), and 52% always sought shade vs. 32% of the public group (P = .002). Seventeen percent of the public group never used sunscreen compared with 8% of the screening group.
Whites and older subjects were more likely to embrace sun-safety practices. When the groups were combined, 84% of whites and 52% of blacks always or sometimes used sunscreen (P less than .0001). Those over 60 were much more likely to always seek shade than were those under 31 (53% vs. 24%, P less than .0001).
“The screening group was older and included more individuals with fair skin, highlighting the need to target younger and nonwhite populations for sun safety education,” the researchers wrote. “Encouraging sun safety in younger populations will decrease the risk of skin cancer for patients now and later in their lives. That said, educating populations who seek skin cancer screenings is still important given 22% of our screening cohort reported rarely or never wearing sunscreen, underscoring this program’s value.”
The researchers noted that the study’s limitations include its small size, the possibility that the public group had higher education rates because they were near a university, and the lack of insight into whether the public group represented the general population.
No study funding was reported. The study authors reported no relevant disclosures.
of passersby and skin-cancer screening attendees in Washington, D.C.
“These findings highlight the importance of tailoring free skin cancer screening events for nonwhite and younger populations,” senior author Adam Friedman, MD, professor and interim chair of dermatology at George Washington University, Washington, said in a statement provided by the institution. “While free screening events are important, we also have to think about comprehensive, community-based solutions that reach broader demographic populations than skin cancer screenings alone.”
For the new study, which appears in the July 2019 issue of Journal of Drugs in Dermatology, researchers led by Emily C. Murphy, BS, of George Washington University, sought to better understand skin safety precautions in the population beyond those who attend skin cancer screenings (J Drugs Dermatol. 2019;18[7]:649-53).
The study authors surveyed 285 passersby at six locations in Washington, D.C. (65% were female, 47% were under age 31, 48% were white, and 29% were black) and 144 attendees at a free skin cancer screening at George Washington University (70% were female, 16% were under 31, 44% were over 60, 73% were white, and 14% were black).
The attendees at the screening event were much more likely to engage in sun safety habits that are linked to lower risk of squamous cell carcinoma, basal cell carcinoma, and melanoma: 34% always used sunscreen vs. 19% of the public group (P = .001), and 52% always sought shade vs. 32% of the public group (P = .002). Seventeen percent of the public group never used sunscreen compared with 8% of the screening group.
Whites and older subjects were more likely to embrace sun-safety practices. When the groups were combined, 84% of whites and 52% of blacks always or sometimes used sunscreen (P less than .0001). Those over 60 were much more likely to always seek shade than were those under 31 (53% vs. 24%, P less than .0001).
“The screening group was older and included more individuals with fair skin, highlighting the need to target younger and nonwhite populations for sun safety education,” the researchers wrote. “Encouraging sun safety in younger populations will decrease the risk of skin cancer for patients now and later in their lives. That said, educating populations who seek skin cancer screenings is still important given 22% of our screening cohort reported rarely or never wearing sunscreen, underscoring this program’s value.”
The researchers noted that the study’s limitations include its small size, the possibility that the public group had higher education rates because they were near a university, and the lack of insight into whether the public group represented the general population.
No study funding was reported. The study authors reported no relevant disclosures.
of passersby and skin-cancer screening attendees in Washington, D.C.
“These findings highlight the importance of tailoring free skin cancer screening events for nonwhite and younger populations,” senior author Adam Friedman, MD, professor and interim chair of dermatology at George Washington University, Washington, said in a statement provided by the institution. “While free screening events are important, we also have to think about comprehensive, community-based solutions that reach broader demographic populations than skin cancer screenings alone.”
For the new study, which appears in the July 2019 issue of Journal of Drugs in Dermatology, researchers led by Emily C. Murphy, BS, of George Washington University, sought to better understand skin safety precautions in the population beyond those who attend skin cancer screenings (J Drugs Dermatol. 2019;18[7]:649-53).
The study authors surveyed 285 passersby at six locations in Washington, D.C. (65% were female, 47% were under age 31, 48% were white, and 29% were black) and 144 attendees at a free skin cancer screening at George Washington University (70% were female, 16% were under 31, 44% were over 60, 73% were white, and 14% were black).
The attendees at the screening event were much more likely to engage in sun safety habits that are linked to lower risk of squamous cell carcinoma, basal cell carcinoma, and melanoma: 34% always used sunscreen vs. 19% of the public group (P = .001), and 52% always sought shade vs. 32% of the public group (P = .002). Seventeen percent of the public group never used sunscreen compared with 8% of the screening group.
Whites and older subjects were more likely to embrace sun-safety practices. When the groups were combined, 84% of whites and 52% of blacks always or sometimes used sunscreen (P less than .0001). Those over 60 were much more likely to always seek shade than were those under 31 (53% vs. 24%, P less than .0001).
“The screening group was older and included more individuals with fair skin, highlighting the need to target younger and nonwhite populations for sun safety education,” the researchers wrote. “Encouraging sun safety in younger populations will decrease the risk of skin cancer for patients now and later in their lives. That said, educating populations who seek skin cancer screenings is still important given 22% of our screening cohort reported rarely or never wearing sunscreen, underscoring this program’s value.”
The researchers noted that the study’s limitations include its small size, the possibility that the public group had higher education rates because they were near a university, and the lack of insight into whether the public group represented the general population.
No study funding was reported. The study authors reported no relevant disclosures.
FROM THE JOURNAL OF DRUGS IN DERMATOLOGY
Shorter vs. longer DAPT following coronary stent placement
Clinical question: Is 6 months of dual antiplatelet therapy (DAPT) therapy noninferior to 12 months, following ST-elevation myocardial infarction (STEMI) with placement of second-generation drug-eluting stents?
Background: DAPT has been the standard of care to prevent abrupt thrombotic closure of vessels following percutaneous coronary intervention (PCI) and placement of stents. The recommended duration of DAPT was lengthened from at least 30 days in bare metal stents to at least 12 months in earlier-generation drug-eluting stents after observation of high rates of in-stent thrombosis of drug-eluting stents.
Trials have shown that there is no difference in outcomes comparing 6 month vs. 12 months in DAPT for PCI in the cases of non-ST-elevation MI and unstable angina. However, there are no randomized controlled studies comparing 6 vs. 12 months of DAPT with newer drug-eluting stents following STEMI. Newer drug-eluting stents are made of biocompatible polymers with thinner struts and are thought to be fully absorbed by 3 months. International guidelines still recommend 12 months of DAPT following drug-eluting stent placement following STEMI.
Study design: Prospective, unblinded, randomized, multicenter noninferiority trial.
Setting: The study was performed at 17 sites in the Netherlands, Norway, Poland, and Switzerland.
Synopsis: This study enrolled 1100 patients with STEMI started on DAPT during December 2011-June 2015. Overall, 870 patients were randomized to continue DAPT or to change to single antiplatelet therapy (SAPT) at 6 months. Exclusions included embolic events, cardiogenic shock, revascularization, bleeding, or being on anticoagulation. Patients were followed for 24 months.
The primary endpoint was a composite of all-cause mortality, any MI, any revascularization, stroke, or thrombolysis. Incidence of the composite endpoint was 4.8% of SAPT cases, and 6.6% of DAPT cases. Noninferiority was met (P = .004) because the upper 95% confidence interval of 1.27 was smaller than the prespecified noninferiority margin of 1.66. The secondary endpoint of safety and bleeding at 18 months was 3.2% for SAPT, and 4.3% for DAPT with HR of 0.75.
Medtronic’s new stent was used in 92% of the cases of this industry-sponsored study. Despite usage of a composite endpoint, there was no difference in the individual elements of the composite in subgroup analyses. There was a low event rate in both arms likely because of the exclusions that led to a lower-risk population. The individual operators were able to choose the P2Y12 inhibitor.
Bottom line: This industry-sponsored randomized, control trial showed noninferiority of 6 months of DAPT to 12 months of therapy following STEMI to prevent in-stent thrombosis with newer second- generation drug-eluting stents. However, the study’s results may be limited to lower-risk patients, without need for revascularization, oral anticoagulation, or with stroke or cardiogenic shock.
Citation: Kedhi E et al. Six months versus 12 months of dual antiplatelet therapy after drug-eluting stent implantation in ST-elevation myocardial infarction (DAPT-STEMI): Randomised, multicenter, noninferiority trial. BMJ. 2018;363:k3793.
Dr. Lennon is an instructor of medicine at Northwestern University Feinberg School of Medicine and a hospitalist at Northwestern Memorial Hospital, both in Chicago.
Clinical question: Is 6 months of dual antiplatelet therapy (DAPT) therapy noninferior to 12 months, following ST-elevation myocardial infarction (STEMI) with placement of second-generation drug-eluting stents?
Background: DAPT has been the standard of care to prevent abrupt thrombotic closure of vessels following percutaneous coronary intervention (PCI) and placement of stents. The recommended duration of DAPT was lengthened from at least 30 days in bare metal stents to at least 12 months in earlier-generation drug-eluting stents after observation of high rates of in-stent thrombosis of drug-eluting stents.
Trials have shown that there is no difference in outcomes comparing 6 month vs. 12 months in DAPT for PCI in the cases of non-ST-elevation MI and unstable angina. However, there are no randomized controlled studies comparing 6 vs. 12 months of DAPT with newer drug-eluting stents following STEMI. Newer drug-eluting stents are made of biocompatible polymers with thinner struts and are thought to be fully absorbed by 3 months. International guidelines still recommend 12 months of DAPT following drug-eluting stent placement following STEMI.
Study design: Prospective, unblinded, randomized, multicenter noninferiority trial.
Setting: The study was performed at 17 sites in the Netherlands, Norway, Poland, and Switzerland.
Synopsis: This study enrolled 1100 patients with STEMI started on DAPT during December 2011-June 2015. Overall, 870 patients were randomized to continue DAPT or to change to single antiplatelet therapy (SAPT) at 6 months. Exclusions included embolic events, cardiogenic shock, revascularization, bleeding, or being on anticoagulation. Patients were followed for 24 months.
The primary endpoint was a composite of all-cause mortality, any MI, any revascularization, stroke, or thrombolysis. Incidence of the composite endpoint was 4.8% of SAPT cases, and 6.6% of DAPT cases. Noninferiority was met (P = .004) because the upper 95% confidence interval of 1.27 was smaller than the prespecified noninferiority margin of 1.66. The secondary endpoint of safety and bleeding at 18 months was 3.2% for SAPT, and 4.3% for DAPT with HR of 0.75.
Medtronic’s new stent was used in 92% of the cases of this industry-sponsored study. Despite usage of a composite endpoint, there was no difference in the individual elements of the composite in subgroup analyses. There was a low event rate in both arms likely because of the exclusions that led to a lower-risk population. The individual operators were able to choose the P2Y12 inhibitor.
Bottom line: This industry-sponsored randomized, control trial showed noninferiority of 6 months of DAPT to 12 months of therapy following STEMI to prevent in-stent thrombosis with newer second- generation drug-eluting stents. However, the study’s results may be limited to lower-risk patients, without need for revascularization, oral anticoagulation, or with stroke or cardiogenic shock.
Citation: Kedhi E et al. Six months versus 12 months of dual antiplatelet therapy after drug-eluting stent implantation in ST-elevation myocardial infarction (DAPT-STEMI): Randomised, multicenter, noninferiority trial. BMJ. 2018;363:k3793.
Dr. Lennon is an instructor of medicine at Northwestern University Feinberg School of Medicine and a hospitalist at Northwestern Memorial Hospital, both in Chicago.
Clinical question: Is 6 months of dual antiplatelet therapy (DAPT) therapy noninferior to 12 months, following ST-elevation myocardial infarction (STEMI) with placement of second-generation drug-eluting stents?
Background: DAPT has been the standard of care to prevent abrupt thrombotic closure of vessels following percutaneous coronary intervention (PCI) and placement of stents. The recommended duration of DAPT was lengthened from at least 30 days in bare metal stents to at least 12 months in earlier-generation drug-eluting stents after observation of high rates of in-stent thrombosis of drug-eluting stents.
Trials have shown that there is no difference in outcomes comparing 6 month vs. 12 months in DAPT for PCI in the cases of non-ST-elevation MI and unstable angina. However, there are no randomized controlled studies comparing 6 vs. 12 months of DAPT with newer drug-eluting stents following STEMI. Newer drug-eluting stents are made of biocompatible polymers with thinner struts and are thought to be fully absorbed by 3 months. International guidelines still recommend 12 months of DAPT following drug-eluting stent placement following STEMI.
Study design: Prospective, unblinded, randomized, multicenter noninferiority trial.
Setting: The study was performed at 17 sites in the Netherlands, Norway, Poland, and Switzerland.
Synopsis: This study enrolled 1100 patients with STEMI started on DAPT during December 2011-June 2015. Overall, 870 patients were randomized to continue DAPT or to change to single antiplatelet therapy (SAPT) at 6 months. Exclusions included embolic events, cardiogenic shock, revascularization, bleeding, or being on anticoagulation. Patients were followed for 24 months.
The primary endpoint was a composite of all-cause mortality, any MI, any revascularization, stroke, or thrombolysis. Incidence of the composite endpoint was 4.8% of SAPT cases, and 6.6% of DAPT cases. Noninferiority was met (P = .004) because the upper 95% confidence interval of 1.27 was smaller than the prespecified noninferiority margin of 1.66. The secondary endpoint of safety and bleeding at 18 months was 3.2% for SAPT, and 4.3% for DAPT with HR of 0.75.
Medtronic’s new stent was used in 92% of the cases of this industry-sponsored study. Despite usage of a composite endpoint, there was no difference in the individual elements of the composite in subgroup analyses. There was a low event rate in both arms likely because of the exclusions that led to a lower-risk population. The individual operators were able to choose the P2Y12 inhibitor.
Bottom line: This industry-sponsored randomized, control trial showed noninferiority of 6 months of DAPT to 12 months of therapy following STEMI to prevent in-stent thrombosis with newer second- generation drug-eluting stents. However, the study’s results may be limited to lower-risk patients, without need for revascularization, oral anticoagulation, or with stroke or cardiogenic shock.
Citation: Kedhi E et al. Six months versus 12 months of dual antiplatelet therapy after drug-eluting stent implantation in ST-elevation myocardial infarction (DAPT-STEMI): Randomised, multicenter, noninferiority trial. BMJ. 2018;363:k3793.
Dr. Lennon is an instructor of medicine at Northwestern University Feinberg School of Medicine and a hospitalist at Northwestern Memorial Hospital, both in Chicago.
VA Urges All Veterans to Get Tested
The US Department of Veterans Affairs (VA) has a well-established National HIV Program, says Dr. Richard Stone, executive in charge of the VHA. In fact, he notes, the VA is the single largest provider of HIV care in America and has treated 31,000 veterans for HIV.
Thus, the VA plays a critical role in the effort to establish tools and resources to eradicate HIV in the US, Stone says, “one veteran at a time.” To realize this “ambitious but achievable target,” the VA is:
- Offering HIV testing at least once to every veteran and more often to those at risk;
- Rapidly linking those who are diagnosed to effective treatment;
- Deploying an HIV health force to hard-hit areas of the country, expanding timely access to high-quality HIV care and prevention across the VA’s integrated network, with both face-to-face encounters and telehealth; and
- Offering pre-exposure prophylaxis (PrEP) when clinically appropriate.
The primary goal, Stone says, is for veterans with HIV or at risk for HIV to be able to access the best care “safely and free from stigma and discrimination.”
Resources and educational tools are available at www.hiv.va.gov, including recently updated fact sheets and videos for patients about PrEP
The US Department of Veterans Affairs (VA) has a well-established National HIV Program, says Dr. Richard Stone, executive in charge of the VHA. In fact, he notes, the VA is the single largest provider of HIV care in America and has treated 31,000 veterans for HIV.
Thus, the VA plays a critical role in the effort to establish tools and resources to eradicate HIV in the US, Stone says, “one veteran at a time.” To realize this “ambitious but achievable target,” the VA is:
- Offering HIV testing at least once to every veteran and more often to those at risk;
- Rapidly linking those who are diagnosed to effective treatment;
- Deploying an HIV health force to hard-hit areas of the country, expanding timely access to high-quality HIV care and prevention across the VA’s integrated network, with both face-to-face encounters and telehealth; and
- Offering pre-exposure prophylaxis (PrEP) when clinically appropriate.
The primary goal, Stone says, is for veterans with HIV or at risk for HIV to be able to access the best care “safely and free from stigma and discrimination.”
Resources and educational tools are available at www.hiv.va.gov, including recently updated fact sheets and videos for patients about PrEP
The US Department of Veterans Affairs (VA) has a well-established National HIV Program, says Dr. Richard Stone, executive in charge of the VHA. In fact, he notes, the VA is the single largest provider of HIV care in America and has treated 31,000 veterans for HIV.
Thus, the VA plays a critical role in the effort to establish tools and resources to eradicate HIV in the US, Stone says, “one veteran at a time.” To realize this “ambitious but achievable target,” the VA is:
- Offering HIV testing at least once to every veteran and more often to those at risk;
- Rapidly linking those who are diagnosed to effective treatment;
- Deploying an HIV health force to hard-hit areas of the country, expanding timely access to high-quality HIV care and prevention across the VA’s integrated network, with both face-to-face encounters and telehealth; and
- Offering pre-exposure prophylaxis (PrEP) when clinically appropriate.
The primary goal, Stone says, is for veterans with HIV or at risk for HIV to be able to access the best care “safely and free from stigma and discrimination.”
Resources and educational tools are available at www.hiv.va.gov, including recently updated fact sheets and videos for patients about PrEP
Man, 46, With Wrist Laceration
A right hand–dominant 46-year-old man presents to the emergency department (ED) with a 1-cm laceration of his volar right wrist that occurred after he slipped on a wet floor while carrying a ceramic dish. The patient fell with his hand outstretched and landed on the dish as it broke against the floor. The patient has no pain but complains of tingling in his fingers. Past medical history is negative for diabetes, hypertension, or any neurologic disorders. Social history includes smoking one-half pack of cigarettes per day and drinking 6 to 10 12-oz beers each weekend. He works as a machinist.
Physical examination shows no bony tenderness. There is a 1.0-cm transverse laceration at the base of the hand at the midline of the volar wrist crease. Flexion, extension, and strength of the fingers are intact, as are dull and sharp discrimination to the thumb and other fingers. A cotton-tip applicator is used for gross sensory testing. No other neuromuscular assessment of the hand is performed. An x-ray of the hand to rule out a fracture or ceramic foreign body is negative.
The wound is locally anesthetized with 1% xylocaine without epinephrine. The laceration is irrigated with normal saline solution and closed with 4-0 nylon sutures using conventional bedside-suturing technique. A sterile bandage is applied. After-care instructions include wound care and follow-up with the patient’s family physician in 1 week for suture removal.
The patient returns to the ED 4 days later, complaining of increased tingling and weakness of the thumb and index and middle fingers. Repeat neuromuscular examination shows decreased sensation and dull/sharp discrimination, and abnormal static 2-point discrimination of the thumb and index and middle fingers. Based on the location of the laceration, the follow-up provider suspects a median nerve injury. After a telephone consultation with a hand surgeon, the patient is told to come into the office in 2 days.
Subsequent follow-up by the hospital’s risk manager indicates that the hand surgeon found a transected median nerve, requiring surgery to repair it. The patient has resulting deficits in sensation and strength and requires extensive occupational therapy. The risk management team learns that the patient intends to file a malpractice suit.
DISCUSSION
Hand and finger injuries represent about 20% of ED visits and are among the most costly injuries for the employed population.1 Knife and glass lacerations of the fingers are most common.2 Failure to diagnose significant hand and finger injuries is also a major contributor to malpractice claims in the ED.3 It is imperative for the PA or NP working in a high-stress/high-volume environment to perform a thorough neuromuscular and vascular examination when encountering a traumatic hand injury or a laceration. This applies to all frontline practices, including urgent care, ED, and primary care and family practices.
Volar surface lacerations of the wrist and fingers are especially high risk.2 Small lacerations (< 2 cm for fingers and < 3 cm for wrist and forearm) may lead a provider to consider the injury minor; however, these have the greatest potential for missed significant deep injuries.2 Missed median nerve lacerations can result in major complications if not surgically repaired soon after the injury.4
Continue to: With our case patient...
With our case patient, a small glass cut at the volar wrist crease did not cause tendon lacerations or flexor deficits. The patient complained only of mild tingling to the fingers, and a detailed hand-and-finger examination was not performed to isolate further nerve injury.4
Although most nerve injuries result in a loss in sensory function, motor function must also be evaluated.5 With partial nerve lacerations, subtle loss of motor or sensory function can be missed by the examiner.4 It is imperative to conduct a thorough hand examination (outlined in Tables 1 and 2) to decrease the likelihood of missing a significant nerve or tendon injury.
Sensory testing basics
Nerve laceration vs nerve compression disorder. It is important to distinguish sensory testing for a nerve injury or laceration from testing for a nerve compression disorder, such as carpal tunnel syndrome. When examining compression neuropathies, light touch, tuning fork vibration, and monofilament testing are used. When a nerve injury or laceration is suspected, light touch and 2-point discrimination are used.5 Static 2-point discrimination (also known as the Weber static test) will be immediately abnormal if a nerve is lacerated. In a nerve compression disorder, 2-point discrimination is decreased progressively.5
Sensory testing evidence
Comparing light touch, monofilament, and 2-point discrimination. As seen with our case patient, testing dull-sharp discrimination using the cotton-tip applicator for “dull” and the broken end of the wooden applicator stick for “sharp” may not be the most complete way to assess sensation in the hand and fingers. The physical examination should include light touch and 2-point discrimination.5
In one study, tests for sensation compared the gauze test (light touch), the static 2-point discrimination, the moving 2-point discrimination (m2PD; also known as the Weber dynamic test),6 and the monofilament test. The static and m2PD tests were statistically superior to the gauze and monofilament tests (see Table 3).7 Two-point discrimination abnormalities are detected immediately after a nerve is lacerated.5 This suggests performing 2-point discrimination, either moving or static, is superior to dull-sensation testing alone (gauze or cotton-tip applicator). This should be included in the motor and sensory examinations of the hand and fingers seen in Tables 1 and 2.
Continue to: Moving 2-point discrimination test
Moving 2-point discrimination test
The m2PD requires a 2-pointed instrument that can maintain a fixed 5 mm of width, such as a bent paperclip or EKG calipers. Commercially available devices specifically for 2-point discrimination can also be used.
When performing the m2PD test, the provider strokes 1 point in the proximal to distal direction in 5-mm increments on the finger and asks whether the patient feels “1 moving point.” The provider then holds 2 points and moves them in the proximal to distal direction in 5-mm increments and asks whether the patient feels “2 moving points.”
The m2PD test is then conducted comparing the ulnar and radial side of the injured finger with the ipsilateral noninjured finger. This should be done at least 4 times.8 The test is positive if there is a ≥ 2-mm difference between the affected and the unaffected side.7
Wound exploration
Data from a French insurance company indicate that 10% of ED malpractice claims in 2013 were related to inadequately examined hand lacerations. In an analysis of these claims, Mouton et al found that most injuries resulting in claims affected the thumb or the volar aspects of the fingers. Reasons for malpractice claims included residual stiffness, weakness, sensory deficit, retained foreign body, and wound infection. The researchers concluded that inadequate examination of hand wounds “carries a risk of lasting and sometimes severe residual impairment, and generates considerable societal costs.”3
In particular, small penetrating lacerations from broken glass or a knife should be considered high-risk injuries.2 In a study of small (< 2 cm) lacerations of the hand and fingers, 59% of the patients were found to have deep-structure injuries.2 Tuncali et al concluded that small lacerations increase the likelihood of missing deeper structural injuries because of failure to examine the wound.2 Furthermore, with glass lacerations, examiners tend to prioritize ruling out a foreign body and then fail to examine the wound. If a careful examination of the hand and fingers prompts suspicion of a tendon or nerve injury, referral to hand surgery for direct surgical exploration is indicated.
Continue to: CONCLUSION
CONCLUSION
Busy health care providers must be aware that approximately 10% to 15% of the negative outcomes in patient care result from diagnostic errors and are most common in the internal medicine, family medicine, and emergency medicine clinical environments.9 With hand and finger lacerations, small size can give a provider a false sense that the laceration is minor, resulting in a failure to diagnose a deeper injury (eg, tendon or nerve).1
When evaluating a traumatic injury or laceration to the hand or fingers, it is important to conduct a thorough sensory and motor examination. Experts recommend light touch and 2-point discrimination be included in the sensory exam to avoid missing nerve injuries. If a deeper structural injury is suspected, the patient should be referred to hand surgery and the wound surgically explored.2
1. Robinson LS, Sarkies M, Brown T, et al. Direct, indirect and intangible costs of acute hand and wrist injuries: a systematic review. Injury. 2016;47:2614-2626.
2. Tuncali D, Yavuz N, Terzioglu A, Aslan G. The rate of upper-extremity deep-structure injuries through small penetrating lacerations. Ann Plast Surg. 2005;55:146-148.
3. Mouton J, Houdre H, Beccari R, et al. Surgical exploration of hand wounds in the emergency room: preliminary study of 80 personal injury claims. Orthop Traumatol Surg Res. 2016;102:1009-1012.
4. Pederson WC. Median nerve injury and repair. J Hand Surg Am. 2014;39(6): 1216-1222.
5. Kenney RJ, Hammert WC. Physical examination of the hand. J Hand Surg Am. 2014;39(11):2324-2334.
6. Dellon AL. The moving two-point discrimination test: clinical evaluation of the quickly adapting fiber/receptor system. J Hand Surg. 1978;3(5):474-481.
7. Bijon C, Hidalgo-Diaz JJ, Chiara P, et al. Nerve injuries to the volar aspect of the hand: a comparison of the reliability of the Weber static test versus the gauze test. Injury. 2017;48:2582-2585.
8. Davenport M, Tang P. Injuries to the hand and digits. In: Tintinalli JE, Stapczynski J, Ma OJ, et al, eds. Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. 8th ed. New York, NY: McGraw-Hill; 2016:1667.
9. Croskerry P, Nimmo GR. Better clinical decision making and reducing diagnostic error. J R Coll Physicians Edinb. 2011;41:155-162.
10. Madan SS, Pai DR, Kaur A, Dixit R. Injury to the ulnar collateral ligament of thumb. Orthop Surg. 2014;6:1-7.
A right hand–dominant 46-year-old man presents to the emergency department (ED) with a 1-cm laceration of his volar right wrist that occurred after he slipped on a wet floor while carrying a ceramic dish. The patient fell with his hand outstretched and landed on the dish as it broke against the floor. The patient has no pain but complains of tingling in his fingers. Past medical history is negative for diabetes, hypertension, or any neurologic disorders. Social history includes smoking one-half pack of cigarettes per day and drinking 6 to 10 12-oz beers each weekend. He works as a machinist.
Physical examination shows no bony tenderness. There is a 1.0-cm transverse laceration at the base of the hand at the midline of the volar wrist crease. Flexion, extension, and strength of the fingers are intact, as are dull and sharp discrimination to the thumb and other fingers. A cotton-tip applicator is used for gross sensory testing. No other neuromuscular assessment of the hand is performed. An x-ray of the hand to rule out a fracture or ceramic foreign body is negative.
The wound is locally anesthetized with 1% xylocaine without epinephrine. The laceration is irrigated with normal saline solution and closed with 4-0 nylon sutures using conventional bedside-suturing technique. A sterile bandage is applied. After-care instructions include wound care and follow-up with the patient’s family physician in 1 week for suture removal.
The patient returns to the ED 4 days later, complaining of increased tingling and weakness of the thumb and index and middle fingers. Repeat neuromuscular examination shows decreased sensation and dull/sharp discrimination, and abnormal static 2-point discrimination of the thumb and index and middle fingers. Based on the location of the laceration, the follow-up provider suspects a median nerve injury. After a telephone consultation with a hand surgeon, the patient is told to come into the office in 2 days.
Subsequent follow-up by the hospital’s risk manager indicates that the hand surgeon found a transected median nerve, requiring surgery to repair it. The patient has resulting deficits in sensation and strength and requires extensive occupational therapy. The risk management team learns that the patient intends to file a malpractice suit.
DISCUSSION
Hand and finger injuries represent about 20% of ED visits and are among the most costly injuries for the employed population.1 Knife and glass lacerations of the fingers are most common.2 Failure to diagnose significant hand and finger injuries is also a major contributor to malpractice claims in the ED.3 It is imperative for the PA or NP working in a high-stress/high-volume environment to perform a thorough neuromuscular and vascular examination when encountering a traumatic hand injury or a laceration. This applies to all frontline practices, including urgent care, ED, and primary care and family practices.
Volar surface lacerations of the wrist and fingers are especially high risk.2 Small lacerations (< 2 cm for fingers and < 3 cm for wrist and forearm) may lead a provider to consider the injury minor; however, these have the greatest potential for missed significant deep injuries.2 Missed median nerve lacerations can result in major complications if not surgically repaired soon after the injury.4
Continue to: With our case patient...
With our case patient, a small glass cut at the volar wrist crease did not cause tendon lacerations or flexor deficits. The patient complained only of mild tingling to the fingers, and a detailed hand-and-finger examination was not performed to isolate further nerve injury.4
Although most nerve injuries result in a loss in sensory function, motor function must also be evaluated.5 With partial nerve lacerations, subtle loss of motor or sensory function can be missed by the examiner.4 It is imperative to conduct a thorough hand examination (outlined in Tables 1 and 2) to decrease the likelihood of missing a significant nerve or tendon injury.
Sensory testing basics
Nerve laceration vs nerve compression disorder. It is important to distinguish sensory testing for a nerve injury or laceration from testing for a nerve compression disorder, such as carpal tunnel syndrome. When examining compression neuropathies, light touch, tuning fork vibration, and monofilament testing are used. When a nerve injury or laceration is suspected, light touch and 2-point discrimination are used.5 Static 2-point discrimination (also known as the Weber static test) will be immediately abnormal if a nerve is lacerated. In a nerve compression disorder, 2-point discrimination is decreased progressively.5
Sensory testing evidence
Comparing light touch, monofilament, and 2-point discrimination. As seen with our case patient, testing dull-sharp discrimination using the cotton-tip applicator for “dull” and the broken end of the wooden applicator stick for “sharp” may not be the most complete way to assess sensation in the hand and fingers. The physical examination should include light touch and 2-point discrimination.5
In one study, tests for sensation compared the gauze test (light touch), the static 2-point discrimination, the moving 2-point discrimination (m2PD; also known as the Weber dynamic test),6 and the monofilament test. The static and m2PD tests were statistically superior to the gauze and monofilament tests (see Table 3).7 Two-point discrimination abnormalities are detected immediately after a nerve is lacerated.5 This suggests performing 2-point discrimination, either moving or static, is superior to dull-sensation testing alone (gauze or cotton-tip applicator). This should be included in the motor and sensory examinations of the hand and fingers seen in Tables 1 and 2.
Continue to: Moving 2-point discrimination test
Moving 2-point discrimination test
The m2PD requires a 2-pointed instrument that can maintain a fixed 5 mm of width, such as a bent paperclip or EKG calipers. Commercially available devices specifically for 2-point discrimination can also be used.
When performing the m2PD test, the provider strokes 1 point in the proximal to distal direction in 5-mm increments on the finger and asks whether the patient feels “1 moving point.” The provider then holds 2 points and moves them in the proximal to distal direction in 5-mm increments and asks whether the patient feels “2 moving points.”
The m2PD test is then conducted comparing the ulnar and radial side of the injured finger with the ipsilateral noninjured finger. This should be done at least 4 times.8 The test is positive if there is a ≥ 2-mm difference between the affected and the unaffected side.7
Wound exploration
Data from a French insurance company indicate that 10% of ED malpractice claims in 2013 were related to inadequately examined hand lacerations. In an analysis of these claims, Mouton et al found that most injuries resulting in claims affected the thumb or the volar aspects of the fingers. Reasons for malpractice claims included residual stiffness, weakness, sensory deficit, retained foreign body, and wound infection. The researchers concluded that inadequate examination of hand wounds “carries a risk of lasting and sometimes severe residual impairment, and generates considerable societal costs.”3
In particular, small penetrating lacerations from broken glass or a knife should be considered high-risk injuries.2 In a study of small (< 2 cm) lacerations of the hand and fingers, 59% of the patients were found to have deep-structure injuries.2 Tuncali et al concluded that small lacerations increase the likelihood of missing deeper structural injuries because of failure to examine the wound.2 Furthermore, with glass lacerations, examiners tend to prioritize ruling out a foreign body and then fail to examine the wound. If a careful examination of the hand and fingers prompts suspicion of a tendon or nerve injury, referral to hand surgery for direct surgical exploration is indicated.
Continue to: CONCLUSION
CONCLUSION
Busy health care providers must be aware that approximately 10% to 15% of the negative outcomes in patient care result from diagnostic errors and are most common in the internal medicine, family medicine, and emergency medicine clinical environments.9 With hand and finger lacerations, small size can give a provider a false sense that the laceration is minor, resulting in a failure to diagnose a deeper injury (eg, tendon or nerve).1
When evaluating a traumatic injury or laceration to the hand or fingers, it is important to conduct a thorough sensory and motor examination. Experts recommend light touch and 2-point discrimination be included in the sensory exam to avoid missing nerve injuries. If a deeper structural injury is suspected, the patient should be referred to hand surgery and the wound surgically explored.2
A right hand–dominant 46-year-old man presents to the emergency department (ED) with a 1-cm laceration of his volar right wrist that occurred after he slipped on a wet floor while carrying a ceramic dish. The patient fell with his hand outstretched and landed on the dish as it broke against the floor. The patient has no pain but complains of tingling in his fingers. Past medical history is negative for diabetes, hypertension, or any neurologic disorders. Social history includes smoking one-half pack of cigarettes per day and drinking 6 to 10 12-oz beers each weekend. He works as a machinist.
Physical examination shows no bony tenderness. There is a 1.0-cm transverse laceration at the base of the hand at the midline of the volar wrist crease. Flexion, extension, and strength of the fingers are intact, as are dull and sharp discrimination to the thumb and other fingers. A cotton-tip applicator is used for gross sensory testing. No other neuromuscular assessment of the hand is performed. An x-ray of the hand to rule out a fracture or ceramic foreign body is negative.
The wound is locally anesthetized with 1% xylocaine without epinephrine. The laceration is irrigated with normal saline solution and closed with 4-0 nylon sutures using conventional bedside-suturing technique. A sterile bandage is applied. After-care instructions include wound care and follow-up with the patient’s family physician in 1 week for suture removal.
The patient returns to the ED 4 days later, complaining of increased tingling and weakness of the thumb and index and middle fingers. Repeat neuromuscular examination shows decreased sensation and dull/sharp discrimination, and abnormal static 2-point discrimination of the thumb and index and middle fingers. Based on the location of the laceration, the follow-up provider suspects a median nerve injury. After a telephone consultation with a hand surgeon, the patient is told to come into the office in 2 days.
Subsequent follow-up by the hospital’s risk manager indicates that the hand surgeon found a transected median nerve, requiring surgery to repair it. The patient has resulting deficits in sensation and strength and requires extensive occupational therapy. The risk management team learns that the patient intends to file a malpractice suit.
DISCUSSION
Hand and finger injuries represent about 20% of ED visits and are among the most costly injuries for the employed population.1 Knife and glass lacerations of the fingers are most common.2 Failure to diagnose significant hand and finger injuries is also a major contributor to malpractice claims in the ED.3 It is imperative for the PA or NP working in a high-stress/high-volume environment to perform a thorough neuromuscular and vascular examination when encountering a traumatic hand injury or a laceration. This applies to all frontline practices, including urgent care, ED, and primary care and family practices.
Volar surface lacerations of the wrist and fingers are especially high risk.2 Small lacerations (< 2 cm for fingers and < 3 cm for wrist and forearm) may lead a provider to consider the injury minor; however, these have the greatest potential for missed significant deep injuries.2 Missed median nerve lacerations can result in major complications if not surgically repaired soon after the injury.4
Continue to: With our case patient...
With our case patient, a small glass cut at the volar wrist crease did not cause tendon lacerations or flexor deficits. The patient complained only of mild tingling to the fingers, and a detailed hand-and-finger examination was not performed to isolate further nerve injury.4
Although most nerve injuries result in a loss in sensory function, motor function must also be evaluated.5 With partial nerve lacerations, subtle loss of motor or sensory function can be missed by the examiner.4 It is imperative to conduct a thorough hand examination (outlined in Tables 1 and 2) to decrease the likelihood of missing a significant nerve or tendon injury.
Sensory testing basics
Nerve laceration vs nerve compression disorder. It is important to distinguish sensory testing for a nerve injury or laceration from testing for a nerve compression disorder, such as carpal tunnel syndrome. When examining compression neuropathies, light touch, tuning fork vibration, and monofilament testing are used. When a nerve injury or laceration is suspected, light touch and 2-point discrimination are used.5 Static 2-point discrimination (also known as the Weber static test) will be immediately abnormal if a nerve is lacerated. In a nerve compression disorder, 2-point discrimination is decreased progressively.5
Sensory testing evidence
Comparing light touch, monofilament, and 2-point discrimination. As seen with our case patient, testing dull-sharp discrimination using the cotton-tip applicator for “dull” and the broken end of the wooden applicator stick for “sharp” may not be the most complete way to assess sensation in the hand and fingers. The physical examination should include light touch and 2-point discrimination.5
In one study, tests for sensation compared the gauze test (light touch), the static 2-point discrimination, the moving 2-point discrimination (m2PD; also known as the Weber dynamic test),6 and the monofilament test. The static and m2PD tests were statistically superior to the gauze and monofilament tests (see Table 3).7 Two-point discrimination abnormalities are detected immediately after a nerve is lacerated.5 This suggests performing 2-point discrimination, either moving or static, is superior to dull-sensation testing alone (gauze or cotton-tip applicator). This should be included in the motor and sensory examinations of the hand and fingers seen in Tables 1 and 2.
Continue to: Moving 2-point discrimination test
Moving 2-point discrimination test
The m2PD requires a 2-pointed instrument that can maintain a fixed 5 mm of width, such as a bent paperclip or EKG calipers. Commercially available devices specifically for 2-point discrimination can also be used.
When performing the m2PD test, the provider strokes 1 point in the proximal to distal direction in 5-mm increments on the finger and asks whether the patient feels “1 moving point.” The provider then holds 2 points and moves them in the proximal to distal direction in 5-mm increments and asks whether the patient feels “2 moving points.”
The m2PD test is then conducted comparing the ulnar and radial side of the injured finger with the ipsilateral noninjured finger. This should be done at least 4 times.8 The test is positive if there is a ≥ 2-mm difference between the affected and the unaffected side.7
Wound exploration
Data from a French insurance company indicate that 10% of ED malpractice claims in 2013 were related to inadequately examined hand lacerations. In an analysis of these claims, Mouton et al found that most injuries resulting in claims affected the thumb or the volar aspects of the fingers. Reasons for malpractice claims included residual stiffness, weakness, sensory deficit, retained foreign body, and wound infection. The researchers concluded that inadequate examination of hand wounds “carries a risk of lasting and sometimes severe residual impairment, and generates considerable societal costs.”3
In particular, small penetrating lacerations from broken glass or a knife should be considered high-risk injuries.2 In a study of small (< 2 cm) lacerations of the hand and fingers, 59% of the patients were found to have deep-structure injuries.2 Tuncali et al concluded that small lacerations increase the likelihood of missing deeper structural injuries because of failure to examine the wound.2 Furthermore, with glass lacerations, examiners tend to prioritize ruling out a foreign body and then fail to examine the wound. If a careful examination of the hand and fingers prompts suspicion of a tendon or nerve injury, referral to hand surgery for direct surgical exploration is indicated.
Continue to: CONCLUSION
CONCLUSION
Busy health care providers must be aware that approximately 10% to 15% of the negative outcomes in patient care result from diagnostic errors and are most common in the internal medicine, family medicine, and emergency medicine clinical environments.9 With hand and finger lacerations, small size can give a provider a false sense that the laceration is minor, resulting in a failure to diagnose a deeper injury (eg, tendon or nerve).1
When evaluating a traumatic injury or laceration to the hand or fingers, it is important to conduct a thorough sensory and motor examination. Experts recommend light touch and 2-point discrimination be included in the sensory exam to avoid missing nerve injuries. If a deeper structural injury is suspected, the patient should be referred to hand surgery and the wound surgically explored.2
1. Robinson LS, Sarkies M, Brown T, et al. Direct, indirect and intangible costs of acute hand and wrist injuries: a systematic review. Injury. 2016;47:2614-2626.
2. Tuncali D, Yavuz N, Terzioglu A, Aslan G. The rate of upper-extremity deep-structure injuries through small penetrating lacerations. Ann Plast Surg. 2005;55:146-148.
3. Mouton J, Houdre H, Beccari R, et al. Surgical exploration of hand wounds in the emergency room: preliminary study of 80 personal injury claims. Orthop Traumatol Surg Res. 2016;102:1009-1012.
4. Pederson WC. Median nerve injury and repair. J Hand Surg Am. 2014;39(6): 1216-1222.
5. Kenney RJ, Hammert WC. Physical examination of the hand. J Hand Surg Am. 2014;39(11):2324-2334.
6. Dellon AL. The moving two-point discrimination test: clinical evaluation of the quickly adapting fiber/receptor system. J Hand Surg. 1978;3(5):474-481.
7. Bijon C, Hidalgo-Diaz JJ, Chiara P, et al. Nerve injuries to the volar aspect of the hand: a comparison of the reliability of the Weber static test versus the gauze test. Injury. 2017;48:2582-2585.
8. Davenport M, Tang P. Injuries to the hand and digits. In: Tintinalli JE, Stapczynski J, Ma OJ, et al, eds. Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. 8th ed. New York, NY: McGraw-Hill; 2016:1667.
9. Croskerry P, Nimmo GR. Better clinical decision making and reducing diagnostic error. J R Coll Physicians Edinb. 2011;41:155-162.
10. Madan SS, Pai DR, Kaur A, Dixit R. Injury to the ulnar collateral ligament of thumb. Orthop Surg. 2014;6:1-7.
1. Robinson LS, Sarkies M, Brown T, et al. Direct, indirect and intangible costs of acute hand and wrist injuries: a systematic review. Injury. 2016;47:2614-2626.
2. Tuncali D, Yavuz N, Terzioglu A, Aslan G. The rate of upper-extremity deep-structure injuries through small penetrating lacerations. Ann Plast Surg. 2005;55:146-148.
3. Mouton J, Houdre H, Beccari R, et al. Surgical exploration of hand wounds in the emergency room: preliminary study of 80 personal injury claims. Orthop Traumatol Surg Res. 2016;102:1009-1012.
4. Pederson WC. Median nerve injury and repair. J Hand Surg Am. 2014;39(6): 1216-1222.
5. Kenney RJ, Hammert WC. Physical examination of the hand. J Hand Surg Am. 2014;39(11):2324-2334.
6. Dellon AL. The moving two-point discrimination test: clinical evaluation of the quickly adapting fiber/receptor system. J Hand Surg. 1978;3(5):474-481.
7. Bijon C, Hidalgo-Diaz JJ, Chiara P, et al. Nerve injuries to the volar aspect of the hand: a comparison of the reliability of the Weber static test versus the gauze test. Injury. 2017;48:2582-2585.
8. Davenport M, Tang P. Injuries to the hand and digits. In: Tintinalli JE, Stapczynski J, Ma OJ, et al, eds. Tintinalli’s Emergency Medicine: A Comprehensive Study Guide. 8th ed. New York, NY: McGraw-Hill; 2016:1667.
9. Croskerry P, Nimmo GR. Better clinical decision making and reducing diagnostic error. J R Coll Physicians Edinb. 2011;41:155-162.
10. Madan SS, Pai DR, Kaur A, Dixit R. Injury to the ulnar collateral ligament of thumb. Orthop Surg. 2014;6:1-7.
Emicizumab follow-up shows further bleeding declines
MELBOURNE – according to data presented at the International Society on Thrombosis and Haemostasis congress.
Michael Callaghan, MD, of the Children’s Hospital of Michigan, Detroit, reported on a pooled analysis of data from 399 patients with hemophilia A who were treated with emicizumab (Hemlibra) for a median duration of 83.1 weeks, representing 650 patient-years of exposure. The studies included pediatric and adult patients, both with and without factor VIII inhibitors.
Patients enrolled in the studies had a median of eight bleeds in the 24 weeks before enrollment, but in the first 24 weeks of treatment with emicizumab, the mean annualized bleed rate dropped to 1.9. During weeks 25-48, this dropped further to 0.8, remained at that level in weeks 49-72, then declined further to 0.3 during weeks 73-96.
During the first 24 weeks of treatment, 70.8% of patients experienced zero bleeds, and 22.5% experienced 1-3 bleeds. By week 96, the number of patients experiencing zero bleeds had increased to 88.6% and nearly 100% of patients had had fewer than three bleeds during that 24-week period.
The study also reported on target joint bleeds and showed the mean annualized bleed rate in target joints decreased from 1.4 in the first 24 weeks of treatment to 0.3 in weeks 73-96, by which time 90.4% of patients reported no target joint bleeds at all. Overall, 99.2% of target joints resolved, which was defined as two or fewer spontaneous bleeding events into a target joint in a year.
“The bleed rate seemed to converge on a low number, suggesting that maybe patients that came with preexisting synovitis or inflamed joints improved over time to resemble the patients who had better joint health at the beginning of the study,” Dr. Callaghan said.
The long-term follow-up did not reveal any major safety concerns. The most common drug-related adverse event was injection site reactions, which just over one-quarter of patients reported. The main serious adverse events were bleeding related.
“With any biologic agent, we were concerned about antidrug antibodies,” Dr. Callaghan told the conference. “At this follow-up point, less than 1% of patients treated with emicizumab in this group have had neutralizing antidrug antibodies.” Most of these antibodies were detected with routine screening, but there was one patient with antidrug antibodies who developed breakthrough bleeding during the study.
In an interview, Dr. Callaghan said emicizumab was “game-changing” therapy, and that the data showed it was efficacious even long term. However, he said there were still some questions to be answered about which patients were most likely to benefit.
“How early do we start this? Do we put previously untreated patients on this, and if we do, how do we expose them to factor VIII?” he said. Other challenging questions are whether to do immune tolerance induction for patients with factor VIII inhibitors and how the drug would work for other patient groups, such as those with comorbidities or who were very active.
The study was sponsored by F. Hoffman-La Roche and Chugai Pharmaceutical. Dr. Callaghan declared consultancies, grants, clinical trial involvement, speakers bureau engagements, and shares with the pharmaceutical sector.
SOURCE: Callaghan M et al. 2019 ISTH Congress, Abstract OC 60.2.
MELBOURNE – according to data presented at the International Society on Thrombosis and Haemostasis congress.
Michael Callaghan, MD, of the Children’s Hospital of Michigan, Detroit, reported on a pooled analysis of data from 399 patients with hemophilia A who were treated with emicizumab (Hemlibra) for a median duration of 83.1 weeks, representing 650 patient-years of exposure. The studies included pediatric and adult patients, both with and without factor VIII inhibitors.
Patients enrolled in the studies had a median of eight bleeds in the 24 weeks before enrollment, but in the first 24 weeks of treatment with emicizumab, the mean annualized bleed rate dropped to 1.9. During weeks 25-48, this dropped further to 0.8, remained at that level in weeks 49-72, then declined further to 0.3 during weeks 73-96.
During the first 24 weeks of treatment, 70.8% of patients experienced zero bleeds, and 22.5% experienced 1-3 bleeds. By week 96, the number of patients experiencing zero bleeds had increased to 88.6% and nearly 100% of patients had had fewer than three bleeds during that 24-week period.
The study also reported on target joint bleeds and showed the mean annualized bleed rate in target joints decreased from 1.4 in the first 24 weeks of treatment to 0.3 in weeks 73-96, by which time 90.4% of patients reported no target joint bleeds at all. Overall, 99.2% of target joints resolved, which was defined as two or fewer spontaneous bleeding events into a target joint in a year.
“The bleed rate seemed to converge on a low number, suggesting that maybe patients that came with preexisting synovitis or inflamed joints improved over time to resemble the patients who had better joint health at the beginning of the study,” Dr. Callaghan said.
The long-term follow-up did not reveal any major safety concerns. The most common drug-related adverse event was injection site reactions, which just over one-quarter of patients reported. The main serious adverse events were bleeding related.
“With any biologic agent, we were concerned about antidrug antibodies,” Dr. Callaghan told the conference. “At this follow-up point, less than 1% of patients treated with emicizumab in this group have had neutralizing antidrug antibodies.” Most of these antibodies were detected with routine screening, but there was one patient with antidrug antibodies who developed breakthrough bleeding during the study.
In an interview, Dr. Callaghan said emicizumab was “game-changing” therapy, and that the data showed it was efficacious even long term. However, he said there were still some questions to be answered about which patients were most likely to benefit.
“How early do we start this? Do we put previously untreated patients on this, and if we do, how do we expose them to factor VIII?” he said. Other challenging questions are whether to do immune tolerance induction for patients with factor VIII inhibitors and how the drug would work for other patient groups, such as those with comorbidities or who were very active.
The study was sponsored by F. Hoffman-La Roche and Chugai Pharmaceutical. Dr. Callaghan declared consultancies, grants, clinical trial involvement, speakers bureau engagements, and shares with the pharmaceutical sector.
SOURCE: Callaghan M et al. 2019 ISTH Congress, Abstract OC 60.2.
MELBOURNE – according to data presented at the International Society on Thrombosis and Haemostasis congress.
Michael Callaghan, MD, of the Children’s Hospital of Michigan, Detroit, reported on a pooled analysis of data from 399 patients with hemophilia A who were treated with emicizumab (Hemlibra) for a median duration of 83.1 weeks, representing 650 patient-years of exposure. The studies included pediatric and adult patients, both with and without factor VIII inhibitors.
Patients enrolled in the studies had a median of eight bleeds in the 24 weeks before enrollment, but in the first 24 weeks of treatment with emicizumab, the mean annualized bleed rate dropped to 1.9. During weeks 25-48, this dropped further to 0.8, remained at that level in weeks 49-72, then declined further to 0.3 during weeks 73-96.
During the first 24 weeks of treatment, 70.8% of patients experienced zero bleeds, and 22.5% experienced 1-3 bleeds. By week 96, the number of patients experiencing zero bleeds had increased to 88.6% and nearly 100% of patients had had fewer than three bleeds during that 24-week period.
The study also reported on target joint bleeds and showed the mean annualized bleed rate in target joints decreased from 1.4 in the first 24 weeks of treatment to 0.3 in weeks 73-96, by which time 90.4% of patients reported no target joint bleeds at all. Overall, 99.2% of target joints resolved, which was defined as two or fewer spontaneous bleeding events into a target joint in a year.
“The bleed rate seemed to converge on a low number, suggesting that maybe patients that came with preexisting synovitis or inflamed joints improved over time to resemble the patients who had better joint health at the beginning of the study,” Dr. Callaghan said.
The long-term follow-up did not reveal any major safety concerns. The most common drug-related adverse event was injection site reactions, which just over one-quarter of patients reported. The main serious adverse events were bleeding related.
“With any biologic agent, we were concerned about antidrug antibodies,” Dr. Callaghan told the conference. “At this follow-up point, less than 1% of patients treated with emicizumab in this group have had neutralizing antidrug antibodies.” Most of these antibodies were detected with routine screening, but there was one patient with antidrug antibodies who developed breakthrough bleeding during the study.
In an interview, Dr. Callaghan said emicizumab was “game-changing” therapy, and that the data showed it was efficacious even long term. However, he said there were still some questions to be answered about which patients were most likely to benefit.
“How early do we start this? Do we put previously untreated patients on this, and if we do, how do we expose them to factor VIII?” he said. Other challenging questions are whether to do immune tolerance induction for patients with factor VIII inhibitors and how the drug would work for other patient groups, such as those with comorbidities or who were very active.
The study was sponsored by F. Hoffman-La Roche and Chugai Pharmaceutical. Dr. Callaghan declared consultancies, grants, clinical trial involvement, speakers bureau engagements, and shares with the pharmaceutical sector.
SOURCE: Callaghan M et al. 2019 ISTH Congress, Abstract OC 60.2.
REPORTING FROM 2019 ISTH CONGRESS