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Neural networks can distinguish PsA from rheumatoid arthritis on MRI
Hand images are sufficient
NEW YORK – On the basis of MRI images of the hand, a neural network has been trained to distinguish seronegative and seropositive rheumatoid arthritis (RA) from psoriatic arthritis (PsA) as well as from each other, according to a study that was presented at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
In the work so far, the neural network was correct about 70% of the time in the absence of any further clinical analyses, according to David Simon, MD, a rheumatologist in the department of internal medicine at Friedrich-Alexander University, Erlangen, Germany.
Previous to this work, “there has been no study that has exclusively used hand MRI data and deep learning without requiring further expert input for the classification of arthritides,” Dr. Simon said.
In fact, when demographic and clinical data were added, there was no improvement in the performance of patient classification relative to the deep learning classification alone, according to the data presented by Dr. Simon.
The images were evaluated with residual neural networks (ResNet), which represents a sophisticated form of deep learning to facilitate the flow of information across the network layers as they form to improve accuracy in their ability to distinguish one form of disease from the other. The training was performed on images from the T1 coronal, T2 corona1, T1 coronal fat suppressed with contrast, T1 axial fat suppressed with contrast, and T2 fat suppressed axial sequences.
The study included hand MRI scans from 135 patients with seronegative RA, 190 with seropositive RA, 177 with PsA, and 147 with psoriasis. The performance was judged on the basis of area under the receiver operating characteristics curve (AUROC) with and without input of clinical characteristics. Patients who had psoriasis without clinical arthritis were included as a control population.
The AUROC for accuracy was 75% for seropositive RA relative to PsA, 74% for seronegative RA relative to PsA, and 67% for seropositive relative to seronegative RA. Of the patients who had psoriasis without arthritis, 98% were classified as PsA and 2% as RA.
Subsequent to the classification of the patients with psoriasis, 14 of the 147 (9.5%) have developed PsA so far over a relatively short follow-up. All of these were among those identified as PsA by neural network evaluation of the hand MRIs.
This suggests that “a PsA-like pattern may be present early in the course of psoriatic disease,” Dr. Simon said.
In the groups with joint disease, who had mean ages ranging from 56 to 65, the mean disease durations were 2.6 years for those with seropositive RA, 1.3 years for those with seronegative RA, and 0.8 years for those with PsA. The patients with psoriasis were younger (mean age, 40.5 years) but had a longer disease duration (mean 4.2 years).
All of the MRI sequences were relevant for classification, but contrast did not appear to help with accuracy.
“If the images with contrast enhancement were deleted, the loss of performance was only marginal,” Dr. Simon reported.
The accuracy of neural networks increases with data, making it likely that further refinements in methodology will lead to a greater degree of accuracy, according to Dr. Simon. While the methodology is not yet ready for routine use in the clinic, the study demonstrates that neural network analysis of hand MRI to distinguish forms of arthritis “is possible.” Further studies are planned toward the goal of creating a viable clinical tool.
“Of course, if we could create an accurate tool with ultrasound, this would be even more practical,” said Dr. Simon, recognizing the value of an office tool, but he cautioned that this would be far more challenging.
“The precision of MRI is an important factor for effective neural network training,” he said.
Utility: ‘In challenging cases if the accuracy improves’?
A viable method for objectively and rapidly distinguishing inflammatory joint diseases, particularly in patients with an ambiguous clinical presentation, is an unmet need, according to Philip J. Mease, MD, director of rheumatology research at Swedish Medical Center, Seattle.
Although the data presented are promising, Dr. Mease said in an interview that he believes there is a fair amount of work to be done before imaging analysis based on deep learning makes its way into routine clinical care. He is also hoping for methods to distinguish RA from PsA that are easier and less expensive, such as serum biomarkers. However, he agreed that a MRI-based tool could be useful when differentiating disease that is challenging.
“MRI is an expensive way for routine classification of disease, but this approach could be useful in challenging cases if the accuracy improves,” he said.
Meanwhile, other clinical researchers might want to test the principle. “You can try it,” said Dr. Simon, who reported that his team has made the methodology publicly available.
Dr. Simon reported no conflicts of interest. Dr. Mease reported financial relationships with more than 10 pharmaceutical companies, most of which make products used for the treatment of inflammatory joint diseases.
Hand images are sufficient
Hand images are sufficient
NEW YORK – On the basis of MRI images of the hand, a neural network has been trained to distinguish seronegative and seropositive rheumatoid arthritis (RA) from psoriatic arthritis (PsA) as well as from each other, according to a study that was presented at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
In the work so far, the neural network was correct about 70% of the time in the absence of any further clinical analyses, according to David Simon, MD, a rheumatologist in the department of internal medicine at Friedrich-Alexander University, Erlangen, Germany.
Previous to this work, “there has been no study that has exclusively used hand MRI data and deep learning without requiring further expert input for the classification of arthritides,” Dr. Simon said.
In fact, when demographic and clinical data were added, there was no improvement in the performance of patient classification relative to the deep learning classification alone, according to the data presented by Dr. Simon.
The images were evaluated with residual neural networks (ResNet), which represents a sophisticated form of deep learning to facilitate the flow of information across the network layers as they form to improve accuracy in their ability to distinguish one form of disease from the other. The training was performed on images from the T1 coronal, T2 corona1, T1 coronal fat suppressed with contrast, T1 axial fat suppressed with contrast, and T2 fat suppressed axial sequences.
The study included hand MRI scans from 135 patients with seronegative RA, 190 with seropositive RA, 177 with PsA, and 147 with psoriasis. The performance was judged on the basis of area under the receiver operating characteristics curve (AUROC) with and without input of clinical characteristics. Patients who had psoriasis without clinical arthritis were included as a control population.
The AUROC for accuracy was 75% for seropositive RA relative to PsA, 74% for seronegative RA relative to PsA, and 67% for seropositive relative to seronegative RA. Of the patients who had psoriasis without arthritis, 98% were classified as PsA and 2% as RA.
Subsequent to the classification of the patients with psoriasis, 14 of the 147 (9.5%) have developed PsA so far over a relatively short follow-up. All of these were among those identified as PsA by neural network evaluation of the hand MRIs.
This suggests that “a PsA-like pattern may be present early in the course of psoriatic disease,” Dr. Simon said.
In the groups with joint disease, who had mean ages ranging from 56 to 65, the mean disease durations were 2.6 years for those with seropositive RA, 1.3 years for those with seronegative RA, and 0.8 years for those with PsA. The patients with psoriasis were younger (mean age, 40.5 years) but had a longer disease duration (mean 4.2 years).
All of the MRI sequences were relevant for classification, but contrast did not appear to help with accuracy.
“If the images with contrast enhancement were deleted, the loss of performance was only marginal,” Dr. Simon reported.
The accuracy of neural networks increases with data, making it likely that further refinements in methodology will lead to a greater degree of accuracy, according to Dr. Simon. While the methodology is not yet ready for routine use in the clinic, the study demonstrates that neural network analysis of hand MRI to distinguish forms of arthritis “is possible.” Further studies are planned toward the goal of creating a viable clinical tool.
“Of course, if we could create an accurate tool with ultrasound, this would be even more practical,” said Dr. Simon, recognizing the value of an office tool, but he cautioned that this would be far more challenging.
“The precision of MRI is an important factor for effective neural network training,” he said.
Utility: ‘In challenging cases if the accuracy improves’?
A viable method for objectively and rapidly distinguishing inflammatory joint diseases, particularly in patients with an ambiguous clinical presentation, is an unmet need, according to Philip J. Mease, MD, director of rheumatology research at Swedish Medical Center, Seattle.
Although the data presented are promising, Dr. Mease said in an interview that he believes there is a fair amount of work to be done before imaging analysis based on deep learning makes its way into routine clinical care. He is also hoping for methods to distinguish RA from PsA that are easier and less expensive, such as serum biomarkers. However, he agreed that a MRI-based tool could be useful when differentiating disease that is challenging.
“MRI is an expensive way for routine classification of disease, but this approach could be useful in challenging cases if the accuracy improves,” he said.
Meanwhile, other clinical researchers might want to test the principle. “You can try it,” said Dr. Simon, who reported that his team has made the methodology publicly available.
Dr. Simon reported no conflicts of interest. Dr. Mease reported financial relationships with more than 10 pharmaceutical companies, most of which make products used for the treatment of inflammatory joint diseases.
NEW YORK – On the basis of MRI images of the hand, a neural network has been trained to distinguish seronegative and seropositive rheumatoid arthritis (RA) from psoriatic arthritis (PsA) as well as from each other, according to a study that was presented at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
In the work so far, the neural network was correct about 70% of the time in the absence of any further clinical analyses, according to David Simon, MD, a rheumatologist in the department of internal medicine at Friedrich-Alexander University, Erlangen, Germany.
Previous to this work, “there has been no study that has exclusively used hand MRI data and deep learning without requiring further expert input for the classification of arthritides,” Dr. Simon said.
In fact, when demographic and clinical data were added, there was no improvement in the performance of patient classification relative to the deep learning classification alone, according to the data presented by Dr. Simon.
The images were evaluated with residual neural networks (ResNet), which represents a sophisticated form of deep learning to facilitate the flow of information across the network layers as they form to improve accuracy in their ability to distinguish one form of disease from the other. The training was performed on images from the T1 coronal, T2 corona1, T1 coronal fat suppressed with contrast, T1 axial fat suppressed with contrast, and T2 fat suppressed axial sequences.
The study included hand MRI scans from 135 patients with seronegative RA, 190 with seropositive RA, 177 with PsA, and 147 with psoriasis. The performance was judged on the basis of area under the receiver operating characteristics curve (AUROC) with and without input of clinical characteristics. Patients who had psoriasis without clinical arthritis were included as a control population.
The AUROC for accuracy was 75% for seropositive RA relative to PsA, 74% for seronegative RA relative to PsA, and 67% for seropositive relative to seronegative RA. Of the patients who had psoriasis without arthritis, 98% were classified as PsA and 2% as RA.
Subsequent to the classification of the patients with psoriasis, 14 of the 147 (9.5%) have developed PsA so far over a relatively short follow-up. All of these were among those identified as PsA by neural network evaluation of the hand MRIs.
This suggests that “a PsA-like pattern may be present early in the course of psoriatic disease,” Dr. Simon said.
In the groups with joint disease, who had mean ages ranging from 56 to 65, the mean disease durations were 2.6 years for those with seropositive RA, 1.3 years for those with seronegative RA, and 0.8 years for those with PsA. The patients with psoriasis were younger (mean age, 40.5 years) but had a longer disease duration (mean 4.2 years).
All of the MRI sequences were relevant for classification, but contrast did not appear to help with accuracy.
“If the images with contrast enhancement were deleted, the loss of performance was only marginal,” Dr. Simon reported.
The accuracy of neural networks increases with data, making it likely that further refinements in methodology will lead to a greater degree of accuracy, according to Dr. Simon. While the methodology is not yet ready for routine use in the clinic, the study demonstrates that neural network analysis of hand MRI to distinguish forms of arthritis “is possible.” Further studies are planned toward the goal of creating a viable clinical tool.
“Of course, if we could create an accurate tool with ultrasound, this would be even more practical,” said Dr. Simon, recognizing the value of an office tool, but he cautioned that this would be far more challenging.
“The precision of MRI is an important factor for effective neural network training,” he said.
Utility: ‘In challenging cases if the accuracy improves’?
A viable method for objectively and rapidly distinguishing inflammatory joint diseases, particularly in patients with an ambiguous clinical presentation, is an unmet need, according to Philip J. Mease, MD, director of rheumatology research at Swedish Medical Center, Seattle.
Although the data presented are promising, Dr. Mease said in an interview that he believes there is a fair amount of work to be done before imaging analysis based on deep learning makes its way into routine clinical care. He is also hoping for methods to distinguish RA from PsA that are easier and less expensive, such as serum biomarkers. However, he agreed that a MRI-based tool could be useful when differentiating disease that is challenging.
“MRI is an expensive way for routine classification of disease, but this approach could be useful in challenging cases if the accuracy improves,” he said.
Meanwhile, other clinical researchers might want to test the principle. “You can try it,” said Dr. Simon, who reported that his team has made the methodology publicly available.
Dr. Simon reported no conflicts of interest. Dr. Mease reported financial relationships with more than 10 pharmaceutical companies, most of which make products used for the treatment of inflammatory joint diseases.
AT GRAPPA 2022
New algorithm for initial PsA treatment choice is driven by T-cell behavior
T-cell behavior
Biologic selection is cytokine based
NEW YORK – An algorithm in development for psoriatic arthritis (PsA) is showing promise for directing patients to the biologic with the greatest likelihood of producing disease control, according to a proof-of-concept study presented at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
“Our technique involves a more precise functional assay showing exact T-cell behavior, compared to the previous assessments that only analyzed cellular phenotypes,” reported Gizem Ayan, MD, a fellow in rheumatology at Hacettepe University Faculty of Medicine, Ankara, Turkey.
The concept of precision medicine in PsA as well as other autoimmune diseases is not new. Phenotypes and biomarkers have already shown potential for guiding treatment, according to Dr. Ayan, but she said none are yet guideline recommended or proven to improve patient outcomes.
The principle of the new algorithm that she and her coinvestigators are pursing is based on immunophenotype analysis conducted with a flow-cytometric cytokine secretion assay (FCCSA). In the protocol, monocytes obtained from peripheral blood undergo activation before an FCCSA to distinguish patients by their T-cell behavior.
The treatment decision tree is based on median ratios of tumor necrosis factor (TNF)-alpha, interleukin (IL)–22, IL-17, and interferon-gamma expression among CD4+ and CD8+ cells. Based on a yes-or-no response to specific immune patterns, the patient is funneled to a biologic that inhibits a dominant cytokine.
The proof-of-concept study, which enrolled 8 patients with PsA who were naive to conventional synthetic disease-modifying antirheumatic drugs (csDMARDs) and 11 patients with PsA who were naive to biologic DMARDs (bDMARDs), was designed to demonstrate feasibility. It did not test clinical benefit, but it did show that immunophenotyping with this methodology can be performed efficiently.
“From the time a blood sample is obtained, the method provided results within 24 hours,” according to Dr. Ayan, who is now planning a randomized trial to test the ability of the algorithm to improve clinical outcomes.
In the decision tree, there are five yes-no pathways to a treatment choice. The first step of the algorithm is to test the ratio of TNF-alpha to interferon-gamma CD4+ T cells. A “yes’ response is produced if the ratio is greater than or equal to 2. These patients are then evaluated for the ratio of TNF-alpha to interferon-gamma CD8+ T cells. A yes response is produced if the ratio is greater than or equal to 0.5. If yes, they are candidates for a TNF-alpha inhibitor. If no, they are directed to an IL-12/23 inhibitor.
If the answer at the first decision point in the algorithm is a “no,” meaning they do not have a TNF-alpha to interferon-gamma CD4+ ratio of 2 or higher, they are evaluated for percentage of CD4+ T cells expressing IL-22 or IL-17. Is it greater than or equal to 2%? If the answer is “no,” they are candidates for an IL-12/23 inhibitor.
If “yes,” they are evaluated for percentage of IL-22 to IL-17 CD4+. If the IL-22 CD4+ percentage is lower than the IL-17 CD4+ percentage, meaning a “yes” to this decision point, they are directed to an IL-17 inhibitor. If the answer at this decision point is “no,” they are directed to an IL-12/23 inhibitor.
Prior to enrollment in this proof-of-concept study, 10 of the bDMARD patients were scheduled to receive an anti-TNF drug and 1 was scheduled to receive an IL-12/23 inhibitor. On the basis of this algorithm, only 5 patients were directed to an anti-TNF drug. Of the remaining, 5 were directed to an IL-17 inhibitor, and 1 was directed to an IL-12/23 inhibitor.
All 19 participants in the proof-of-concept study had peripheral arthritis; their median age was 45 years. Approximately 90% had skin lesions. Axial involvement was present in only one patient. Based on these and other characteristics and the median ratios of the cytokines measured, Dr. Ayan called this a representative population.
Based on the feasibility of this method for subtyping patients by T-cell behavior to guide drug selection, Dr. Ayan anticipates pursuing the additional steps that would show the algorithm makes a difference to patient care, including such adjunctive benefits as more cost-effective treatment selection.
“We aim to develop a treatment decision algorithm that can be implemented in daily practice,” Dr. Ayan said.
Is peripheral blood sampling adequate?
In addition to saying that the algorithm will need to prove that it alters outcomes, Samuel Tzen-yue Hwang, MD, PhD, professor and chair of the department of dermatology at the University of California, Davis, Sacramento, pointed out some potential practical issues.
“Flow cytometry is not typically available as a rapid throughput, and the cost is high,” he said. Moreover, he remains skeptical about performing this algorithm on the basis of peripheral blood samples.
“It is debatable that looking at peripheral cells would provide adequate information about what is taking place at sites of inflammation,” he said. Although it would “be fantastic” to develop an algorithm that required only a peripheral blood sample, he pointed out that “only a fraction of these cells is relevant” to disease activity.
Aspirating fluid from an involved joint “might be more useful,” but it is more work, he added. Yet, Dr. Hwang acknowledged that this approach is intriguing. He agreed that there is considerable heterogeneity among patients with PsA in their response to specific biologics, and a method to better direct patients to the treatment most likely to elicit a response is needed.
Dr. Ayan and Dr. Hwang reported no potential conflicts of interest.
Biologic selection is cytokine based
Biologic selection is cytokine based
NEW YORK – An algorithm in development for psoriatic arthritis (PsA) is showing promise for directing patients to the biologic with the greatest likelihood of producing disease control, according to a proof-of-concept study presented at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
“Our technique involves a more precise functional assay showing exact T-cell behavior, compared to the previous assessments that only analyzed cellular phenotypes,” reported Gizem Ayan, MD, a fellow in rheumatology at Hacettepe University Faculty of Medicine, Ankara, Turkey.
The concept of precision medicine in PsA as well as other autoimmune diseases is not new. Phenotypes and biomarkers have already shown potential for guiding treatment, according to Dr. Ayan, but she said none are yet guideline recommended or proven to improve patient outcomes.
The principle of the new algorithm that she and her coinvestigators are pursing is based on immunophenotype analysis conducted with a flow-cytometric cytokine secretion assay (FCCSA). In the protocol, monocytes obtained from peripheral blood undergo activation before an FCCSA to distinguish patients by their T-cell behavior.
The treatment decision tree is based on median ratios of tumor necrosis factor (TNF)-alpha, interleukin (IL)–22, IL-17, and interferon-gamma expression among CD4+ and CD8+ cells. Based on a yes-or-no response to specific immune patterns, the patient is funneled to a biologic that inhibits a dominant cytokine.
The proof-of-concept study, which enrolled 8 patients with PsA who were naive to conventional synthetic disease-modifying antirheumatic drugs (csDMARDs) and 11 patients with PsA who were naive to biologic DMARDs (bDMARDs), was designed to demonstrate feasibility. It did not test clinical benefit, but it did show that immunophenotyping with this methodology can be performed efficiently.
“From the time a blood sample is obtained, the method provided results within 24 hours,” according to Dr. Ayan, who is now planning a randomized trial to test the ability of the algorithm to improve clinical outcomes.
In the decision tree, there are five yes-no pathways to a treatment choice. The first step of the algorithm is to test the ratio of TNF-alpha to interferon-gamma CD4+ T cells. A “yes’ response is produced if the ratio is greater than or equal to 2. These patients are then evaluated for the ratio of TNF-alpha to interferon-gamma CD8+ T cells. A yes response is produced if the ratio is greater than or equal to 0.5. If yes, they are candidates for a TNF-alpha inhibitor. If no, they are directed to an IL-12/23 inhibitor.
If the answer at the first decision point in the algorithm is a “no,” meaning they do not have a TNF-alpha to interferon-gamma CD4+ ratio of 2 or higher, they are evaluated for percentage of CD4+ T cells expressing IL-22 or IL-17. Is it greater than or equal to 2%? If the answer is “no,” they are candidates for an IL-12/23 inhibitor.
If “yes,” they are evaluated for percentage of IL-22 to IL-17 CD4+. If the IL-22 CD4+ percentage is lower than the IL-17 CD4+ percentage, meaning a “yes” to this decision point, they are directed to an IL-17 inhibitor. If the answer at this decision point is “no,” they are directed to an IL-12/23 inhibitor.
Prior to enrollment in this proof-of-concept study, 10 of the bDMARD patients were scheduled to receive an anti-TNF drug and 1 was scheduled to receive an IL-12/23 inhibitor. On the basis of this algorithm, only 5 patients were directed to an anti-TNF drug. Of the remaining, 5 were directed to an IL-17 inhibitor, and 1 was directed to an IL-12/23 inhibitor.
All 19 participants in the proof-of-concept study had peripheral arthritis; their median age was 45 years. Approximately 90% had skin lesions. Axial involvement was present in only one patient. Based on these and other characteristics and the median ratios of the cytokines measured, Dr. Ayan called this a representative population.
Based on the feasibility of this method for subtyping patients by T-cell behavior to guide drug selection, Dr. Ayan anticipates pursuing the additional steps that would show the algorithm makes a difference to patient care, including such adjunctive benefits as more cost-effective treatment selection.
“We aim to develop a treatment decision algorithm that can be implemented in daily practice,” Dr. Ayan said.
Is peripheral blood sampling adequate?
In addition to saying that the algorithm will need to prove that it alters outcomes, Samuel Tzen-yue Hwang, MD, PhD, professor and chair of the department of dermatology at the University of California, Davis, Sacramento, pointed out some potential practical issues.
“Flow cytometry is not typically available as a rapid throughput, and the cost is high,” he said. Moreover, he remains skeptical about performing this algorithm on the basis of peripheral blood samples.
“It is debatable that looking at peripheral cells would provide adequate information about what is taking place at sites of inflammation,” he said. Although it would “be fantastic” to develop an algorithm that required only a peripheral blood sample, he pointed out that “only a fraction of these cells is relevant” to disease activity.
Aspirating fluid from an involved joint “might be more useful,” but it is more work, he added. Yet, Dr. Hwang acknowledged that this approach is intriguing. He agreed that there is considerable heterogeneity among patients with PsA in their response to specific biologics, and a method to better direct patients to the treatment most likely to elicit a response is needed.
Dr. Ayan and Dr. Hwang reported no potential conflicts of interest.
NEW YORK – An algorithm in development for psoriatic arthritis (PsA) is showing promise for directing patients to the biologic with the greatest likelihood of producing disease control, according to a proof-of-concept study presented at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
“Our technique involves a more precise functional assay showing exact T-cell behavior, compared to the previous assessments that only analyzed cellular phenotypes,” reported Gizem Ayan, MD, a fellow in rheumatology at Hacettepe University Faculty of Medicine, Ankara, Turkey.
The concept of precision medicine in PsA as well as other autoimmune diseases is not new. Phenotypes and biomarkers have already shown potential for guiding treatment, according to Dr. Ayan, but she said none are yet guideline recommended or proven to improve patient outcomes.
The principle of the new algorithm that she and her coinvestigators are pursing is based on immunophenotype analysis conducted with a flow-cytometric cytokine secretion assay (FCCSA). In the protocol, monocytes obtained from peripheral blood undergo activation before an FCCSA to distinguish patients by their T-cell behavior.
The treatment decision tree is based on median ratios of tumor necrosis factor (TNF)-alpha, interleukin (IL)–22, IL-17, and interferon-gamma expression among CD4+ and CD8+ cells. Based on a yes-or-no response to specific immune patterns, the patient is funneled to a biologic that inhibits a dominant cytokine.
The proof-of-concept study, which enrolled 8 patients with PsA who were naive to conventional synthetic disease-modifying antirheumatic drugs (csDMARDs) and 11 patients with PsA who were naive to biologic DMARDs (bDMARDs), was designed to demonstrate feasibility. It did not test clinical benefit, but it did show that immunophenotyping with this methodology can be performed efficiently.
“From the time a blood sample is obtained, the method provided results within 24 hours,” according to Dr. Ayan, who is now planning a randomized trial to test the ability of the algorithm to improve clinical outcomes.
In the decision tree, there are five yes-no pathways to a treatment choice. The first step of the algorithm is to test the ratio of TNF-alpha to interferon-gamma CD4+ T cells. A “yes’ response is produced if the ratio is greater than or equal to 2. These patients are then evaluated for the ratio of TNF-alpha to interferon-gamma CD8+ T cells. A yes response is produced if the ratio is greater than or equal to 0.5. If yes, they are candidates for a TNF-alpha inhibitor. If no, they are directed to an IL-12/23 inhibitor.
If the answer at the first decision point in the algorithm is a “no,” meaning they do not have a TNF-alpha to interferon-gamma CD4+ ratio of 2 or higher, they are evaluated for percentage of CD4+ T cells expressing IL-22 or IL-17. Is it greater than or equal to 2%? If the answer is “no,” they are candidates for an IL-12/23 inhibitor.
If “yes,” they are evaluated for percentage of IL-22 to IL-17 CD4+. If the IL-22 CD4+ percentage is lower than the IL-17 CD4+ percentage, meaning a “yes” to this decision point, they are directed to an IL-17 inhibitor. If the answer at this decision point is “no,” they are directed to an IL-12/23 inhibitor.
Prior to enrollment in this proof-of-concept study, 10 of the bDMARD patients were scheduled to receive an anti-TNF drug and 1 was scheduled to receive an IL-12/23 inhibitor. On the basis of this algorithm, only 5 patients were directed to an anti-TNF drug. Of the remaining, 5 were directed to an IL-17 inhibitor, and 1 was directed to an IL-12/23 inhibitor.
All 19 participants in the proof-of-concept study had peripheral arthritis; their median age was 45 years. Approximately 90% had skin lesions. Axial involvement was present in only one patient. Based on these and other characteristics and the median ratios of the cytokines measured, Dr. Ayan called this a representative population.
Based on the feasibility of this method for subtyping patients by T-cell behavior to guide drug selection, Dr. Ayan anticipates pursuing the additional steps that would show the algorithm makes a difference to patient care, including such adjunctive benefits as more cost-effective treatment selection.
“We aim to develop a treatment decision algorithm that can be implemented in daily practice,” Dr. Ayan said.
Is peripheral blood sampling adequate?
In addition to saying that the algorithm will need to prove that it alters outcomes, Samuel Tzen-yue Hwang, MD, PhD, professor and chair of the department of dermatology at the University of California, Davis, Sacramento, pointed out some potential practical issues.
“Flow cytometry is not typically available as a rapid throughput, and the cost is high,” he said. Moreover, he remains skeptical about performing this algorithm on the basis of peripheral blood samples.
“It is debatable that looking at peripheral cells would provide adequate information about what is taking place at sites of inflammation,” he said. Although it would “be fantastic” to develop an algorithm that required only a peripheral blood sample, he pointed out that “only a fraction of these cells is relevant” to disease activity.
Aspirating fluid from an involved joint “might be more useful,” but it is more work, he added. Yet, Dr. Hwang acknowledged that this approach is intriguing. He agreed that there is considerable heterogeneity among patients with PsA in their response to specific biologics, and a method to better direct patients to the treatment most likely to elicit a response is needed.
Dr. Ayan and Dr. Hwang reported no potential conflicts of interest.
T-cell behavior
T-cell behavior
AT GRAPPA 2022
The shifting sands of lung cancer screening
An analysis of trends in lung cancer screening since March 2021 when the U.S. Preventive Services Task Force (USPSTF) expanded the eligibility criteria for lung cancer screening, shows that significantly more Black men have been screened for lung cancer, but not women or undereducated people.
The eligibility for lung cancer screening was expanded in 2021 to include men and women under 50 years old and people who smoke at least one pack of cigarettes a day for the last 20 years. “
“Expansion of screening criteria is a critical first step to achieving equity in lung cancer screening for all high-risk populations, but myriad challenges remain before individuals enter the door for screening,” wrote the authors, led by Julie A. Barta, MD, Thomas Jefferson University, Philadelphia. “Health policy changes must occur simultaneously with efforts to expand community outreach, overcome logistical barriers, and facilitate screening adherence. Only after comprehensive strategies to dismantle screening barriers are identified, validated, and implemented can there be a truly equitable landscape for lung cancer screening.”
For the study, published in JAMA Open Network, researchers examined rates of centralized lung cancer screening in the Baltimore area. In addition to expanding lung cancer screening generally, there was hope that the expanded criteria might increase uptake of screening in populations that are traditionally underserved, such as African American, Hispanic, and female patients. Of 815 people screened during the study period (March-December 2021), 161 were newly eligible for screening under the 2021 criteria.
“There’s been quite a bit of work in the field demonstrating that Black men and women develop lung cancer at more advanced stages of disease, and they often are diagnosed at younger ages and have fewer pack-years of smoking. So the hypothesis was that this would reduce some of the disparities seen in lung cancer screening by making more people eligible,” Dr. Barta said in an interview.
The researchers categorized participants as those who would have been eligible for screening under the USPSTF 2013 guideline (age 55 or older, 30 or more pack-years, quit within the past 15 years), and those who would be eligible under the 2021 guideline (age 50 or older, 20 or more pack-years, quit within the past 15 years). Of the 2021 cohort, 54.5% were African American, versus 39.5% of the 2013 cohort (P = .002). There were no differences between the cohorts with respect to education level or gender.
“Although we’ve seen some encouraging improvement in terms of getting more eligible patients into our screening program, there’s still a lot of work to be done in the field,” Dr. Barta said. “Diagnosing lung cancer at earlier stages of disease is more cost effective in general for the health care system than fighting lung cancer at advanced stages, which requires more complex and multimodal and prolonged therapies.”
New evidence: Chest CTs for lung cancer screening reduces incidence of advanced lung cancer
In an analysis of the SEER database presented in June at the annual meeting of the American Society of Clinical Oncology, the adoption of low-dose chest computed tomography (LDCT) led to fewer diagnoses of advanced lung cancer, although these declines varied significantly by race and ethnicity. Non-Hispanic Blacks seemed to benefit the most with a 55% decline (P < .01), while Hispanics had the lowest rate of decline at 41% (P < .01). The change was recommended by USPSTF in 2013 after the National Lung Screening Trial revealed a 20% relative reduction in mortality when CT scans were used instead of chest radiography. The Centers for Medicare and Medicaid Services approved coverage of the screen in 2015.
The SEER study looked at data from 400,343 individuals from 2004-2014 (preintervention) and 2015-2018 (postintervention). The age-adjusted incidence of advanced lung cancer declined during both periods, but the decline was sharper between 2015 and 2018, with three fewer cases per 100,000 people than 2004-2014 (P < .01). Similar patterns were seen in subanalyses of males and females, non-Hispanic Whites, non-Hispanic Blacks, and Hispanics. The relative declines were largest in women, non-Hispanic Blacks, and people who lived outside of Metropolitan areas.
During a Q&A session that followed the presentation, Robert Smith, PhD, pointed out that the bar for eligibility of lung cancer risk has been set quite high, following the eligibility criteria for clinical trials. He noted that . “We are missing opportunities to prevent avertable lung cancer deaths,” said Dr. Smith, senior vice president of cancer screening at the American Cancer Society.
On the other hand, screening-prompted biopsies have the potential to cause harm, particularly in patients who already have lung disease, said Douglas Allen Arenberg, MD, professor at the University of Michigan, Ann Arbor. “I think that’s what scares most people is the potential downside, which is very hard to measure outside of a clinical trial,” said Dr. Arenberg, who served as a discussant for the presentation.
One way to reduce that risk is to identify biomarkers, either for screens or for incidentally-detected nodules, that have good negative predictive value. “If I had a blood test that is as good as a negative PET scan, I’m going to be much more likely to say, ‘Yeah, you’re 40 and your grandfather had lung cancer. Maybe you should get a CT. If we had that, we could screen a lot more people. Right now, I would discourage anybody who is at low risk from getting screened because when they come to me, the biggest opportunity I have to do harm is when I do a biopsy, and you always remember the ones that go wrong,” he said.
Dr. Arenberg also called for improvements in electronic medical records to better flag at-risk patients. “I think we as physicians have to demand more of the software developers that create these EMRs for us,” he said.
Another study in the same session used data from 1,391,088 patients drawn from the National Cancer Database between 2010 and 2017 to examine trends in diagnosis of stage I cancer. In 2010, 23.5% of patients were diagnosed as stage I, versus 29.1% in 2017. Stage I incidence increased from 25.8% to 31.7% in non–small cell lung cancer, but there was no statistically significant change in small cell lung cancer. As with the SEER database study, the researchers noted that the shift toward stage I diagnoses predated the recommendation of LDCT.
Dr. Arenberg suggested that the trend may come down to increased frequency of CT scans, which often collect incidental images of the lungs. He added that better access to care may also be helping to drive the change. “How much of that might have had something to do with the introduction 5 or 10 years earlier of the Affordable Care Act and people just simply having access to care and taking advantage of that?” Dr. Arenberg said.
But Dr. Arenberg said that not even screening can explain all the data. He referenced a stage shift in patients of all age groups in the National Cancer Database study, even those too young to be eligible for screening. “There’s something else going on here. It would be nice for us to understand what caused these trends, so perhaps we could accentuate that trend even more, but stage shifts are clearly occurring in lung cancer,” Dr. Arenberg said.
Dr. Barta has received grants from Genentech Health Equity Innovations Fund. Dr. Arenberg has no relevant financial disclosures. Dr. Smith’s potential disclosures could not be ascertained.
An analysis of trends in lung cancer screening since March 2021 when the U.S. Preventive Services Task Force (USPSTF) expanded the eligibility criteria for lung cancer screening, shows that significantly more Black men have been screened for lung cancer, but not women or undereducated people.
The eligibility for lung cancer screening was expanded in 2021 to include men and women under 50 years old and people who smoke at least one pack of cigarettes a day for the last 20 years. “
“Expansion of screening criteria is a critical first step to achieving equity in lung cancer screening for all high-risk populations, but myriad challenges remain before individuals enter the door for screening,” wrote the authors, led by Julie A. Barta, MD, Thomas Jefferson University, Philadelphia. “Health policy changes must occur simultaneously with efforts to expand community outreach, overcome logistical barriers, and facilitate screening adherence. Only after comprehensive strategies to dismantle screening barriers are identified, validated, and implemented can there be a truly equitable landscape for lung cancer screening.”
For the study, published in JAMA Open Network, researchers examined rates of centralized lung cancer screening in the Baltimore area. In addition to expanding lung cancer screening generally, there was hope that the expanded criteria might increase uptake of screening in populations that are traditionally underserved, such as African American, Hispanic, and female patients. Of 815 people screened during the study period (March-December 2021), 161 were newly eligible for screening under the 2021 criteria.
“There’s been quite a bit of work in the field demonstrating that Black men and women develop lung cancer at more advanced stages of disease, and they often are diagnosed at younger ages and have fewer pack-years of smoking. So the hypothesis was that this would reduce some of the disparities seen in lung cancer screening by making more people eligible,” Dr. Barta said in an interview.
The researchers categorized participants as those who would have been eligible for screening under the USPSTF 2013 guideline (age 55 or older, 30 or more pack-years, quit within the past 15 years), and those who would be eligible under the 2021 guideline (age 50 or older, 20 or more pack-years, quit within the past 15 years). Of the 2021 cohort, 54.5% were African American, versus 39.5% of the 2013 cohort (P = .002). There were no differences between the cohorts with respect to education level or gender.
“Although we’ve seen some encouraging improvement in terms of getting more eligible patients into our screening program, there’s still a lot of work to be done in the field,” Dr. Barta said. “Diagnosing lung cancer at earlier stages of disease is more cost effective in general for the health care system than fighting lung cancer at advanced stages, which requires more complex and multimodal and prolonged therapies.”
New evidence: Chest CTs for lung cancer screening reduces incidence of advanced lung cancer
In an analysis of the SEER database presented in June at the annual meeting of the American Society of Clinical Oncology, the adoption of low-dose chest computed tomography (LDCT) led to fewer diagnoses of advanced lung cancer, although these declines varied significantly by race and ethnicity. Non-Hispanic Blacks seemed to benefit the most with a 55% decline (P < .01), while Hispanics had the lowest rate of decline at 41% (P < .01). The change was recommended by USPSTF in 2013 after the National Lung Screening Trial revealed a 20% relative reduction in mortality when CT scans were used instead of chest radiography. The Centers for Medicare and Medicaid Services approved coverage of the screen in 2015.
The SEER study looked at data from 400,343 individuals from 2004-2014 (preintervention) and 2015-2018 (postintervention). The age-adjusted incidence of advanced lung cancer declined during both periods, but the decline was sharper between 2015 and 2018, with three fewer cases per 100,000 people than 2004-2014 (P < .01). Similar patterns were seen in subanalyses of males and females, non-Hispanic Whites, non-Hispanic Blacks, and Hispanics. The relative declines were largest in women, non-Hispanic Blacks, and people who lived outside of Metropolitan areas.
During a Q&A session that followed the presentation, Robert Smith, PhD, pointed out that the bar for eligibility of lung cancer risk has been set quite high, following the eligibility criteria for clinical trials. He noted that . “We are missing opportunities to prevent avertable lung cancer deaths,” said Dr. Smith, senior vice president of cancer screening at the American Cancer Society.
On the other hand, screening-prompted biopsies have the potential to cause harm, particularly in patients who already have lung disease, said Douglas Allen Arenberg, MD, professor at the University of Michigan, Ann Arbor. “I think that’s what scares most people is the potential downside, which is very hard to measure outside of a clinical trial,” said Dr. Arenberg, who served as a discussant for the presentation.
One way to reduce that risk is to identify biomarkers, either for screens or for incidentally-detected nodules, that have good negative predictive value. “If I had a blood test that is as good as a negative PET scan, I’m going to be much more likely to say, ‘Yeah, you’re 40 and your grandfather had lung cancer. Maybe you should get a CT. If we had that, we could screen a lot more people. Right now, I would discourage anybody who is at low risk from getting screened because when they come to me, the biggest opportunity I have to do harm is when I do a biopsy, and you always remember the ones that go wrong,” he said.
Dr. Arenberg also called for improvements in electronic medical records to better flag at-risk patients. “I think we as physicians have to demand more of the software developers that create these EMRs for us,” he said.
Another study in the same session used data from 1,391,088 patients drawn from the National Cancer Database between 2010 and 2017 to examine trends in diagnosis of stage I cancer. In 2010, 23.5% of patients were diagnosed as stage I, versus 29.1% in 2017. Stage I incidence increased from 25.8% to 31.7% in non–small cell lung cancer, but there was no statistically significant change in small cell lung cancer. As with the SEER database study, the researchers noted that the shift toward stage I diagnoses predated the recommendation of LDCT.
Dr. Arenberg suggested that the trend may come down to increased frequency of CT scans, which often collect incidental images of the lungs. He added that better access to care may also be helping to drive the change. “How much of that might have had something to do with the introduction 5 or 10 years earlier of the Affordable Care Act and people just simply having access to care and taking advantage of that?” Dr. Arenberg said.
But Dr. Arenberg said that not even screening can explain all the data. He referenced a stage shift in patients of all age groups in the National Cancer Database study, even those too young to be eligible for screening. “There’s something else going on here. It would be nice for us to understand what caused these trends, so perhaps we could accentuate that trend even more, but stage shifts are clearly occurring in lung cancer,” Dr. Arenberg said.
Dr. Barta has received grants from Genentech Health Equity Innovations Fund. Dr. Arenberg has no relevant financial disclosures. Dr. Smith’s potential disclosures could not be ascertained.
An analysis of trends in lung cancer screening since March 2021 when the U.S. Preventive Services Task Force (USPSTF) expanded the eligibility criteria for lung cancer screening, shows that significantly more Black men have been screened for lung cancer, but not women or undereducated people.
The eligibility for lung cancer screening was expanded in 2021 to include men and women under 50 years old and people who smoke at least one pack of cigarettes a day for the last 20 years. “
“Expansion of screening criteria is a critical first step to achieving equity in lung cancer screening for all high-risk populations, but myriad challenges remain before individuals enter the door for screening,” wrote the authors, led by Julie A. Barta, MD, Thomas Jefferson University, Philadelphia. “Health policy changes must occur simultaneously with efforts to expand community outreach, overcome logistical barriers, and facilitate screening adherence. Only after comprehensive strategies to dismantle screening barriers are identified, validated, and implemented can there be a truly equitable landscape for lung cancer screening.”
For the study, published in JAMA Open Network, researchers examined rates of centralized lung cancer screening in the Baltimore area. In addition to expanding lung cancer screening generally, there was hope that the expanded criteria might increase uptake of screening in populations that are traditionally underserved, such as African American, Hispanic, and female patients. Of 815 people screened during the study period (March-December 2021), 161 were newly eligible for screening under the 2021 criteria.
“There’s been quite a bit of work in the field demonstrating that Black men and women develop lung cancer at more advanced stages of disease, and they often are diagnosed at younger ages and have fewer pack-years of smoking. So the hypothesis was that this would reduce some of the disparities seen in lung cancer screening by making more people eligible,” Dr. Barta said in an interview.
The researchers categorized participants as those who would have been eligible for screening under the USPSTF 2013 guideline (age 55 or older, 30 or more pack-years, quit within the past 15 years), and those who would be eligible under the 2021 guideline (age 50 or older, 20 or more pack-years, quit within the past 15 years). Of the 2021 cohort, 54.5% were African American, versus 39.5% of the 2013 cohort (P = .002). There were no differences between the cohorts with respect to education level or gender.
“Although we’ve seen some encouraging improvement in terms of getting more eligible patients into our screening program, there’s still a lot of work to be done in the field,” Dr. Barta said. “Diagnosing lung cancer at earlier stages of disease is more cost effective in general for the health care system than fighting lung cancer at advanced stages, which requires more complex and multimodal and prolonged therapies.”
New evidence: Chest CTs for lung cancer screening reduces incidence of advanced lung cancer
In an analysis of the SEER database presented in June at the annual meeting of the American Society of Clinical Oncology, the adoption of low-dose chest computed tomography (LDCT) led to fewer diagnoses of advanced lung cancer, although these declines varied significantly by race and ethnicity. Non-Hispanic Blacks seemed to benefit the most with a 55% decline (P < .01), while Hispanics had the lowest rate of decline at 41% (P < .01). The change was recommended by USPSTF in 2013 after the National Lung Screening Trial revealed a 20% relative reduction in mortality when CT scans were used instead of chest radiography. The Centers for Medicare and Medicaid Services approved coverage of the screen in 2015.
The SEER study looked at data from 400,343 individuals from 2004-2014 (preintervention) and 2015-2018 (postintervention). The age-adjusted incidence of advanced lung cancer declined during both periods, but the decline was sharper between 2015 and 2018, with three fewer cases per 100,000 people than 2004-2014 (P < .01). Similar patterns were seen in subanalyses of males and females, non-Hispanic Whites, non-Hispanic Blacks, and Hispanics. The relative declines were largest in women, non-Hispanic Blacks, and people who lived outside of Metropolitan areas.
During a Q&A session that followed the presentation, Robert Smith, PhD, pointed out that the bar for eligibility of lung cancer risk has been set quite high, following the eligibility criteria for clinical trials. He noted that . “We are missing opportunities to prevent avertable lung cancer deaths,” said Dr. Smith, senior vice president of cancer screening at the American Cancer Society.
On the other hand, screening-prompted biopsies have the potential to cause harm, particularly in patients who already have lung disease, said Douglas Allen Arenberg, MD, professor at the University of Michigan, Ann Arbor. “I think that’s what scares most people is the potential downside, which is very hard to measure outside of a clinical trial,” said Dr. Arenberg, who served as a discussant for the presentation.
One way to reduce that risk is to identify biomarkers, either for screens or for incidentally-detected nodules, that have good negative predictive value. “If I had a blood test that is as good as a negative PET scan, I’m going to be much more likely to say, ‘Yeah, you’re 40 and your grandfather had lung cancer. Maybe you should get a CT. If we had that, we could screen a lot more people. Right now, I would discourage anybody who is at low risk from getting screened because when they come to me, the biggest opportunity I have to do harm is when I do a biopsy, and you always remember the ones that go wrong,” he said.
Dr. Arenberg also called for improvements in electronic medical records to better flag at-risk patients. “I think we as physicians have to demand more of the software developers that create these EMRs for us,” he said.
Another study in the same session used data from 1,391,088 patients drawn from the National Cancer Database between 2010 and 2017 to examine trends in diagnosis of stage I cancer. In 2010, 23.5% of patients were diagnosed as stage I, versus 29.1% in 2017. Stage I incidence increased from 25.8% to 31.7% in non–small cell lung cancer, but there was no statistically significant change in small cell lung cancer. As with the SEER database study, the researchers noted that the shift toward stage I diagnoses predated the recommendation of LDCT.
Dr. Arenberg suggested that the trend may come down to increased frequency of CT scans, which often collect incidental images of the lungs. He added that better access to care may also be helping to drive the change. “How much of that might have had something to do with the introduction 5 or 10 years earlier of the Affordable Care Act and people just simply having access to care and taking advantage of that?” Dr. Arenberg said.
But Dr. Arenberg said that not even screening can explain all the data. He referenced a stage shift in patients of all age groups in the National Cancer Database study, even those too young to be eligible for screening. “There’s something else going on here. It would be nice for us to understand what caused these trends, so perhaps we could accentuate that trend even more, but stage shifts are clearly occurring in lung cancer,” Dr. Arenberg said.
Dr. Barta has received grants from Genentech Health Equity Innovations Fund. Dr. Arenberg has no relevant financial disclosures. Dr. Smith’s potential disclosures could not be ascertained.
FROM JAMA NETWORK OPEN
Study eyes characteristics of pediatric patients with hidradenitis suppurativa
INDIANAPOLIS – in a study presented at the annual meeting of the Society for Pediatric Dermatology.
In addition, 44% presented with scarring, which suggests that HS may be underdiagnosed in this patient population. Those are the key findings from the study, a single-center retrospective chart review presented by Stephanie Sanchez during a poster session at the meeting.
“There is limited research on HS within the pediatric population,” said Ms. Sanchez, a fourth-year medical student at Boston University. “It’s not very well defined or characterized.” The “unusually high number of pediatric patients with HS” at Boston Medical Center provided “a unique opportunity to study this topic.”
Working with her mentor, Lisa Shen, MD, associate medical director of pediatric dermatology at Boston University, Ms. Sanchez and colleagues retrospectively reviewed the medical records of 303 patients aged 4-18 years who were diagnosed with HS at Boston Medical Center from 2012 to 2021. Boston Medical Center is the largest safety net hospital in New England. All data points and outcome measures were collected within 6 months of the patient’s HS diagnosis date.
Of the 303 patients with HS, 84% were female and 16% were male. Complete information about race was available in 286 patients. Of these, 65% were Black/African American, 11% were White, and the rest were from other racial groups. The mean age at symptom onset was 13 years, while the mean age at diagnosis was 15 years, and the mean delay to diagnosis was 2 years. A family history of HS was reported in 36% of patients.
The most common clinical features in these HS patients were pain/tenderness (90%), pustules/papules (65%), discharge/drainage (62%), and deep-seated nodules (51%). Scarring was present in 44% of patients at the time of diagnosis. The three most common sites of involvement were the axillary area (79%), the pubic area (36%), and the inguinal folds/inner thighs (34%).
Obesity was the most common comorbidity at the time of diagnosis, with 64% of patients affected. The next most common comorbidities were acne vulgaris (36%), acanthosis nigricans (25%), depression (18%), being overweight (17%), polycystic ovary syndrome (16%) and anxiety (13%). None had type 1 diabetes or metabolic syndrome.
Referring to the large population of underserved minority patients at Boston Medical Center, Dr. Shen noted, “we have to make sure not to underestimate the prevalence of obesity in this population as they get older. We need to start from a younger age to incorporate multidisciplinary care such as weight management, nutrition, and working with our pediatric surgery colleagues in trying to tackle [HS] because there is data to suggest that the earlier we intervene, the better outcomes they have. That makes sense.”
Adam Friedman, MD, professor and chair of dermatology at George Washington University, Washington, who was asked to comment on the findings, said that the study “highlights the impressive and concerning gap and delays in diagnosis, not too dissimilar to what the literature shows in adult HS patients, which unfortunately has tremendous ramifications, both physically and emotionally/psychosocially.”
While this single-center study identified potential risk factors, such as obesity and self-identifying as Black, he said, “it is important to note that this condition does not discriminate and therefore it is important not to miss the cases that don’t follow the textbook nor stigmatize this condition as one that only impacts certain demographics.”
The researchers reported having no financial disclosures. Dr. Friedman, who was not involved with the study, reported that he serves as a consultant and/or advisor to numerous pharmaceutical companies. He is a speaker for companies including, Regeneron, Sanofi, AbbVie, Janssen, Incyte, and Brickell Biotech, and has received grants from Pfizer, the Dermatology Foundation, Almirall, Incyte, Galderma, and Janssen.
INDIANAPOLIS – in a study presented at the annual meeting of the Society for Pediatric Dermatology.
In addition, 44% presented with scarring, which suggests that HS may be underdiagnosed in this patient population. Those are the key findings from the study, a single-center retrospective chart review presented by Stephanie Sanchez during a poster session at the meeting.
“There is limited research on HS within the pediatric population,” said Ms. Sanchez, a fourth-year medical student at Boston University. “It’s not very well defined or characterized.” The “unusually high number of pediatric patients with HS” at Boston Medical Center provided “a unique opportunity to study this topic.”
Working with her mentor, Lisa Shen, MD, associate medical director of pediatric dermatology at Boston University, Ms. Sanchez and colleagues retrospectively reviewed the medical records of 303 patients aged 4-18 years who were diagnosed with HS at Boston Medical Center from 2012 to 2021. Boston Medical Center is the largest safety net hospital in New England. All data points and outcome measures were collected within 6 months of the patient’s HS diagnosis date.
Of the 303 patients with HS, 84% were female and 16% were male. Complete information about race was available in 286 patients. Of these, 65% were Black/African American, 11% were White, and the rest were from other racial groups. The mean age at symptom onset was 13 years, while the mean age at diagnosis was 15 years, and the mean delay to diagnosis was 2 years. A family history of HS was reported in 36% of patients.
The most common clinical features in these HS patients were pain/tenderness (90%), pustules/papules (65%), discharge/drainage (62%), and deep-seated nodules (51%). Scarring was present in 44% of patients at the time of diagnosis. The three most common sites of involvement were the axillary area (79%), the pubic area (36%), and the inguinal folds/inner thighs (34%).
Obesity was the most common comorbidity at the time of diagnosis, with 64% of patients affected. The next most common comorbidities were acne vulgaris (36%), acanthosis nigricans (25%), depression (18%), being overweight (17%), polycystic ovary syndrome (16%) and anxiety (13%). None had type 1 diabetes or metabolic syndrome.
Referring to the large population of underserved minority patients at Boston Medical Center, Dr. Shen noted, “we have to make sure not to underestimate the prevalence of obesity in this population as they get older. We need to start from a younger age to incorporate multidisciplinary care such as weight management, nutrition, and working with our pediatric surgery colleagues in trying to tackle [HS] because there is data to suggest that the earlier we intervene, the better outcomes they have. That makes sense.”
Adam Friedman, MD, professor and chair of dermatology at George Washington University, Washington, who was asked to comment on the findings, said that the study “highlights the impressive and concerning gap and delays in diagnosis, not too dissimilar to what the literature shows in adult HS patients, which unfortunately has tremendous ramifications, both physically and emotionally/psychosocially.”
While this single-center study identified potential risk factors, such as obesity and self-identifying as Black, he said, “it is important to note that this condition does not discriminate and therefore it is important not to miss the cases that don’t follow the textbook nor stigmatize this condition as one that only impacts certain demographics.”
The researchers reported having no financial disclosures. Dr. Friedman, who was not involved with the study, reported that he serves as a consultant and/or advisor to numerous pharmaceutical companies. He is a speaker for companies including, Regeneron, Sanofi, AbbVie, Janssen, Incyte, and Brickell Biotech, and has received grants from Pfizer, the Dermatology Foundation, Almirall, Incyte, Galderma, and Janssen.
INDIANAPOLIS – in a study presented at the annual meeting of the Society for Pediatric Dermatology.
In addition, 44% presented with scarring, which suggests that HS may be underdiagnosed in this patient population. Those are the key findings from the study, a single-center retrospective chart review presented by Stephanie Sanchez during a poster session at the meeting.
“There is limited research on HS within the pediatric population,” said Ms. Sanchez, a fourth-year medical student at Boston University. “It’s not very well defined or characterized.” The “unusually high number of pediatric patients with HS” at Boston Medical Center provided “a unique opportunity to study this topic.”
Working with her mentor, Lisa Shen, MD, associate medical director of pediatric dermatology at Boston University, Ms. Sanchez and colleagues retrospectively reviewed the medical records of 303 patients aged 4-18 years who were diagnosed with HS at Boston Medical Center from 2012 to 2021. Boston Medical Center is the largest safety net hospital in New England. All data points and outcome measures were collected within 6 months of the patient’s HS diagnosis date.
Of the 303 patients with HS, 84% were female and 16% were male. Complete information about race was available in 286 patients. Of these, 65% were Black/African American, 11% were White, and the rest were from other racial groups. The mean age at symptom onset was 13 years, while the mean age at diagnosis was 15 years, and the mean delay to diagnosis was 2 years. A family history of HS was reported in 36% of patients.
The most common clinical features in these HS patients were pain/tenderness (90%), pustules/papules (65%), discharge/drainage (62%), and deep-seated nodules (51%). Scarring was present in 44% of patients at the time of diagnosis. The three most common sites of involvement were the axillary area (79%), the pubic area (36%), and the inguinal folds/inner thighs (34%).
Obesity was the most common comorbidity at the time of diagnosis, with 64% of patients affected. The next most common comorbidities were acne vulgaris (36%), acanthosis nigricans (25%), depression (18%), being overweight (17%), polycystic ovary syndrome (16%) and anxiety (13%). None had type 1 diabetes or metabolic syndrome.
Referring to the large population of underserved minority patients at Boston Medical Center, Dr. Shen noted, “we have to make sure not to underestimate the prevalence of obesity in this population as they get older. We need to start from a younger age to incorporate multidisciplinary care such as weight management, nutrition, and working with our pediatric surgery colleagues in trying to tackle [HS] because there is data to suggest that the earlier we intervene, the better outcomes they have. That makes sense.”
Adam Friedman, MD, professor and chair of dermatology at George Washington University, Washington, who was asked to comment on the findings, said that the study “highlights the impressive and concerning gap and delays in diagnosis, not too dissimilar to what the literature shows in adult HS patients, which unfortunately has tremendous ramifications, both physically and emotionally/psychosocially.”
While this single-center study identified potential risk factors, such as obesity and self-identifying as Black, he said, “it is important to note that this condition does not discriminate and therefore it is important not to miss the cases that don’t follow the textbook nor stigmatize this condition as one that only impacts certain demographics.”
The researchers reported having no financial disclosures. Dr. Friedman, who was not involved with the study, reported that he serves as a consultant and/or advisor to numerous pharmaceutical companies. He is a speaker for companies including, Regeneron, Sanofi, AbbVie, Janssen, Incyte, and Brickell Biotech, and has received grants from Pfizer, the Dermatology Foundation, Almirall, Incyte, Galderma, and Janssen.
AT SPD 2022
Pembrolizumab for melanoma bittersweet, doctor says
CHICAGO – Pembrolizumab has shown promise as adjuvant therapy for stage IIB and IIC melanoma, shows the first interim analysis of the phase 3 KEYNOTE-716 study recently published in The Lancet.
The findings meet an unmet need as the recurrence risk in stage IIB and IIC melanoma is “underrecognized,” said author Georgina Long, MD, comedical director of the Melanoma Institute Australia, University of Sydney.
In fact, their risk of recurrence is similar to patients with stage IIIB disease, wrote David Killock, PhD, in a related commentary published in Nature Reviews.
The adjuvant treatment resulted in an 89% recurrence-free survival in patients who received pembrolizumab, compared with 83% of patients in the placebo group (hazard ratio, 0.65; P = .0066). These findings were used as the basis for Food and Drug Administration approval of pembrolizumab (Keytruda, Merck) for this patient population in December 2021.
Despite the positive findings, Dr. Killock called for more research on distant metastasis-free survival, overall survival, and quality of life data to “establish the true clinical benefit of adjuvant pembrolizumab.”
At the annual meeting of the American Society of Clinical Oncology, Dr. Long presented the third interim analysis which showed pembrolizumab reduced recurrence and distant metastases at 24 months, although the clinical benefit was relatively small at an approximately 8% improvement in recurrence-free survival and about a 6% improvement in distant metastasis-free survival. About 83% in the pembrolizumab group had treatment-related toxicities versus 64% in the placebo group. There were no deaths caused by treatment. About 90% of pembrolizumab-related endocrinopathies led to long-term hormone replacement.
In a discussion that followed the presentation at ASCO, Charlotte Eielson Ariyan, MD, PhD, said the results are bittersweet. Higher-risk stage IIC patients have a risk of recurrence of about 40%. “It’s high, but the absolute risk reduction is about 8%. This is a very personalized discussion with the patient and the physician in understanding their risk of toxicity is about 17% and higher than their absolute risk reduction with the treatment. For me, this is a bitter pill to swallow because you’re treating people longer and you’re not sure if you’re really helping them. Until we can further define who the highest-risk patients are, I think it’s hard to give it to everyone,” said Dr. Ariyan, who is a surgeon with Memorial Sloan Kettering Cancer Center, New York.
In addition to weighing short-term benefits and toxicity, there are longer-term concerns. Toxicity experienced from PD-1 inhibitors in the adjuvant setting could impact future treatment decisions. “We’re very lucky here in melanoma to know that systemic therapies are effective and we can cure people who recur. I would argue this is why we probably will never really see a difference in the survival benefit in this group because people who cross over will probably do well,” Dr. Ariyan said.
During the Q&A session, Vernon Sondek, MD, Moffitt Cancer Center, Tampa, encouraged physician colleagues to have an open mind about treatments. “Beware of dogma. We thought that adjuvant immunotherapy works much better in patients with ulcerated primary tumors. That’s a dogma in some parts of the world. Yet the T4a patients in KEYNOTE-716 dramatically outperformed the ulcerated T3b and T4b [patients]. We still don’t know what we don’t know.”
The study details
KEYNOTE-716 included 976 patients 12 years or older with newly diagnosed completely resected stage IIB or IIC melanoma with a negative sentinel lymph node. Patients were randomized to placebo or 200 mg pembrolizumab every 3 weeks, or 2 mg/kg in pediatric patients, over 17 cycles. Almost 40% of patients were age 65 or older. T3b and T4b were the most common melanoma subcategories at 41% and 35%, respectively.
The planned third interim analysis occurred after the occurrence of 146 distant metastases. After a median follow-up of 27.4 months, distant metastasis-free survival favored the pembrolizumab group (HR, 0.64; P = .0029). At 24 months, the pembrolizumab group had a higher distant metastasis-free survival at 88.1% versus 82.2% and a lower recurrence rate at 81.2% versus 72.8% (HR, 0.64; 95% confidence interval, 0.50-0.84).
At 24 months, only the T4a patients had a statistically significant reduction in distant metastases at 58% (HR, 0.42; 95% CI, 0.19-0.96), although there were numerical reductions in T3a (HR, 0.71; 95% CI, 0.41-1.22) and T4b (HR, 0.70; 95% CI, 0.44-1.33) patients. Of patients experiencing a distant metastasis, 73% of the placebo group had a first distant metastasis to the lung compared with 49% of the pembrolizumab group.
Dr. Long has held consulting or advisory roles for Merck Sharpe & Dohme, which funded this study.
CHICAGO – Pembrolizumab has shown promise as adjuvant therapy for stage IIB and IIC melanoma, shows the first interim analysis of the phase 3 KEYNOTE-716 study recently published in The Lancet.
The findings meet an unmet need as the recurrence risk in stage IIB and IIC melanoma is “underrecognized,” said author Georgina Long, MD, comedical director of the Melanoma Institute Australia, University of Sydney.
In fact, their risk of recurrence is similar to patients with stage IIIB disease, wrote David Killock, PhD, in a related commentary published in Nature Reviews.
The adjuvant treatment resulted in an 89% recurrence-free survival in patients who received pembrolizumab, compared with 83% of patients in the placebo group (hazard ratio, 0.65; P = .0066). These findings were used as the basis for Food and Drug Administration approval of pembrolizumab (Keytruda, Merck) for this patient population in December 2021.
Despite the positive findings, Dr. Killock called for more research on distant metastasis-free survival, overall survival, and quality of life data to “establish the true clinical benefit of adjuvant pembrolizumab.”
At the annual meeting of the American Society of Clinical Oncology, Dr. Long presented the third interim analysis which showed pembrolizumab reduced recurrence and distant metastases at 24 months, although the clinical benefit was relatively small at an approximately 8% improvement in recurrence-free survival and about a 6% improvement in distant metastasis-free survival. About 83% in the pembrolizumab group had treatment-related toxicities versus 64% in the placebo group. There were no deaths caused by treatment. About 90% of pembrolizumab-related endocrinopathies led to long-term hormone replacement.
In a discussion that followed the presentation at ASCO, Charlotte Eielson Ariyan, MD, PhD, said the results are bittersweet. Higher-risk stage IIC patients have a risk of recurrence of about 40%. “It’s high, but the absolute risk reduction is about 8%. This is a very personalized discussion with the patient and the physician in understanding their risk of toxicity is about 17% and higher than their absolute risk reduction with the treatment. For me, this is a bitter pill to swallow because you’re treating people longer and you’re not sure if you’re really helping them. Until we can further define who the highest-risk patients are, I think it’s hard to give it to everyone,” said Dr. Ariyan, who is a surgeon with Memorial Sloan Kettering Cancer Center, New York.
In addition to weighing short-term benefits and toxicity, there are longer-term concerns. Toxicity experienced from PD-1 inhibitors in the adjuvant setting could impact future treatment decisions. “We’re very lucky here in melanoma to know that systemic therapies are effective and we can cure people who recur. I would argue this is why we probably will never really see a difference in the survival benefit in this group because people who cross over will probably do well,” Dr. Ariyan said.
During the Q&A session, Vernon Sondek, MD, Moffitt Cancer Center, Tampa, encouraged physician colleagues to have an open mind about treatments. “Beware of dogma. We thought that adjuvant immunotherapy works much better in patients with ulcerated primary tumors. That’s a dogma in some parts of the world. Yet the T4a patients in KEYNOTE-716 dramatically outperformed the ulcerated T3b and T4b [patients]. We still don’t know what we don’t know.”
The study details
KEYNOTE-716 included 976 patients 12 years or older with newly diagnosed completely resected stage IIB or IIC melanoma with a negative sentinel lymph node. Patients were randomized to placebo or 200 mg pembrolizumab every 3 weeks, or 2 mg/kg in pediatric patients, over 17 cycles. Almost 40% of patients were age 65 or older. T3b and T4b were the most common melanoma subcategories at 41% and 35%, respectively.
The planned third interim analysis occurred after the occurrence of 146 distant metastases. After a median follow-up of 27.4 months, distant metastasis-free survival favored the pembrolizumab group (HR, 0.64; P = .0029). At 24 months, the pembrolizumab group had a higher distant metastasis-free survival at 88.1% versus 82.2% and a lower recurrence rate at 81.2% versus 72.8% (HR, 0.64; 95% confidence interval, 0.50-0.84).
At 24 months, only the T4a patients had a statistically significant reduction in distant metastases at 58% (HR, 0.42; 95% CI, 0.19-0.96), although there were numerical reductions in T3a (HR, 0.71; 95% CI, 0.41-1.22) and T4b (HR, 0.70; 95% CI, 0.44-1.33) patients. Of patients experiencing a distant metastasis, 73% of the placebo group had a first distant metastasis to the lung compared with 49% of the pembrolizumab group.
Dr. Long has held consulting or advisory roles for Merck Sharpe & Dohme, which funded this study.
CHICAGO – Pembrolizumab has shown promise as adjuvant therapy for stage IIB and IIC melanoma, shows the first interim analysis of the phase 3 KEYNOTE-716 study recently published in The Lancet.
The findings meet an unmet need as the recurrence risk in stage IIB and IIC melanoma is “underrecognized,” said author Georgina Long, MD, comedical director of the Melanoma Institute Australia, University of Sydney.
In fact, their risk of recurrence is similar to patients with stage IIIB disease, wrote David Killock, PhD, in a related commentary published in Nature Reviews.
The adjuvant treatment resulted in an 89% recurrence-free survival in patients who received pembrolizumab, compared with 83% of patients in the placebo group (hazard ratio, 0.65; P = .0066). These findings were used as the basis for Food and Drug Administration approval of pembrolizumab (Keytruda, Merck) for this patient population in December 2021.
Despite the positive findings, Dr. Killock called for more research on distant metastasis-free survival, overall survival, and quality of life data to “establish the true clinical benefit of adjuvant pembrolizumab.”
At the annual meeting of the American Society of Clinical Oncology, Dr. Long presented the third interim analysis which showed pembrolizumab reduced recurrence and distant metastases at 24 months, although the clinical benefit was relatively small at an approximately 8% improvement in recurrence-free survival and about a 6% improvement in distant metastasis-free survival. About 83% in the pembrolizumab group had treatment-related toxicities versus 64% in the placebo group. There were no deaths caused by treatment. About 90% of pembrolizumab-related endocrinopathies led to long-term hormone replacement.
In a discussion that followed the presentation at ASCO, Charlotte Eielson Ariyan, MD, PhD, said the results are bittersweet. Higher-risk stage IIC patients have a risk of recurrence of about 40%. “It’s high, but the absolute risk reduction is about 8%. This is a very personalized discussion with the patient and the physician in understanding their risk of toxicity is about 17% and higher than their absolute risk reduction with the treatment. For me, this is a bitter pill to swallow because you’re treating people longer and you’re not sure if you’re really helping them. Until we can further define who the highest-risk patients are, I think it’s hard to give it to everyone,” said Dr. Ariyan, who is a surgeon with Memorial Sloan Kettering Cancer Center, New York.
In addition to weighing short-term benefits and toxicity, there are longer-term concerns. Toxicity experienced from PD-1 inhibitors in the adjuvant setting could impact future treatment decisions. “We’re very lucky here in melanoma to know that systemic therapies are effective and we can cure people who recur. I would argue this is why we probably will never really see a difference in the survival benefit in this group because people who cross over will probably do well,” Dr. Ariyan said.
During the Q&A session, Vernon Sondek, MD, Moffitt Cancer Center, Tampa, encouraged physician colleagues to have an open mind about treatments. “Beware of dogma. We thought that adjuvant immunotherapy works much better in patients with ulcerated primary tumors. That’s a dogma in some parts of the world. Yet the T4a patients in KEYNOTE-716 dramatically outperformed the ulcerated T3b and T4b [patients]. We still don’t know what we don’t know.”
The study details
KEYNOTE-716 included 976 patients 12 years or older with newly diagnosed completely resected stage IIB or IIC melanoma with a negative sentinel lymph node. Patients were randomized to placebo or 200 mg pembrolizumab every 3 weeks, or 2 mg/kg in pediatric patients, over 17 cycles. Almost 40% of patients were age 65 or older. T3b and T4b were the most common melanoma subcategories at 41% and 35%, respectively.
The planned third interim analysis occurred after the occurrence of 146 distant metastases. After a median follow-up of 27.4 months, distant metastasis-free survival favored the pembrolizumab group (HR, 0.64; P = .0029). At 24 months, the pembrolizumab group had a higher distant metastasis-free survival at 88.1% versus 82.2% and a lower recurrence rate at 81.2% versus 72.8% (HR, 0.64; 95% confidence interval, 0.50-0.84).
At 24 months, only the T4a patients had a statistically significant reduction in distant metastases at 58% (HR, 0.42; 95% CI, 0.19-0.96), although there were numerical reductions in T3a (HR, 0.71; 95% CI, 0.41-1.22) and T4b (HR, 0.70; 95% CI, 0.44-1.33) patients. Of patients experiencing a distant metastasis, 73% of the placebo group had a first distant metastasis to the lung compared with 49% of the pembrolizumab group.
Dr. Long has held consulting or advisory roles for Merck Sharpe & Dohme, which funded this study.
AT ASCO 2022
What influences a trainee’s decision to choose pediatric dermatology as a career?
INDIANAPOLIS – Three during and after fellowship.
Those are key findings from a survey of current and prior pediatric dermatology fellows, which sought to investigate what factors influence their career decisions.
According to the study’s principal investigator, Lucia Z. Diaz, MD, pediatric dermatology suffers from workforce shortages and geographic maldistribution as a subspecialty in the United States. She also noted that, from 2016 to 2021, 100% of pediatric dermatology applicants matched, yet about 15 of every 31 positions remained unfilled during each of those years. This suggests that there may be a lack of trainee mentorship secondary to a lack of available pediatric dermatologists.
“Somewhere along the way, we lose trainees to general dermatology, or they may go through a pediatric dermatology fellowship but not actually see children upon completion of their training,” Dr. Diaz, chief of pediatric dermatology at the University of Texas at Austin, said in an interview at the annual meeting of the Society for Pediatric Dermatology, where the study was presented during a poster session. “We wanted to find out factors influencing this.”
For the study, Dr. Diaz, Courtney N. Haller, MD, a first-year dermatology resident at the University of Texas at Austin, and their colleagues emailed a 37-item survey to 59 current and prior pediatric dermatology fellows who trained in the United States in the past 4 years (classes of 2019-2022). Current fellows were asked to share their future plans, and past fellows were asked to share details about their current practice situation including practice type (such as academics, private practice, and a mix of adult and pediatrics), and the researchers used descriptive statistics and chi-square analyses to evaluate qualitative data.
In all, 41 survey participants gave complete responses, and 3 gave partial responses. Of these, 8 were current fellows, 36 were past fellows, and 38 were female. The researchers found that 67% of survey respondents first became interested in pediatric dermatology in medical school, while the decision to pursue a fellowship occurred then (33%) or during their third year of dermatology residency (33%). Early exposure to pediatric dermatology, from medical school through dermatology PGY-2, was significantly associated with an early decision to pursue a pediatric dermatology career (P = .004).
In addition, respondents at institutions with two or more pediatric dermatology faculty were significantly more likely to cite home institution mentorship as an influencing factor in their career decision (P = .035).
“I thought that the interest in pediatric dermatology would peak early on during dermatology residency, but it primarily happens during medical school,” said Dr. Diaz, who is also associate director of the dermatology residency program at the medical school. “Mentorship and early exposure to pediatric dermatology during medical school are really important.”
The top three factors that discouraged respondents from pursuing a pediatric dermatology fellowship included a lack of salary benefit with additional training (83%), additional time required to complete training (73%), and geographic relocation (20%). After fellowship, 51% of respondents said they plan to or currently work in academic settings, while 88% said they plan to work full time or currently were working full time.
Interestingly, fellows with additional pediatric training such as an internship or residency were not more likely to see a greater percentage of pediatric patients in practice than those without this training (P = .14). The top 3 reasons for not seeing pediatric patients 100% of the clinical time were interest in seeing adult patients (67%), financial factors (56%), and interest in performing more procedures (56%).
In other findings, the top three factors in deciding practice location were proximity to extended family (63%), practice type (59%), and income (51%).
Adelaide A. Hebert, MD, who was asked to comment on the study, said that the lack of salary benefit from additional training is a sticking point for many fellows. “The market trends of supply and demand do not work in pediatric dermatology,” said Dr. Hebert, professor of dermatology and pediatrics, and chief of pediatric dermatology at the University of Texas, Houston. “You would think that, because there are fewer of us, we should be paid more, but it does not work that way.”
She characterized the overall study findings as “a real testament to what the challenges are” in recruiting trainees to pediatric dermatology. “The influence of mentors resonates in this assessment, but influences that are somewhat beyond our control also play a role, such as lack of salary benefit from additional training, interest in seeing adult patients, and financial factors.”
Neither the researchers nor Dr. Hebert reported having relevant financial disclosures.
INDIANAPOLIS – Three during and after fellowship.
Those are key findings from a survey of current and prior pediatric dermatology fellows, which sought to investigate what factors influence their career decisions.
According to the study’s principal investigator, Lucia Z. Diaz, MD, pediatric dermatology suffers from workforce shortages and geographic maldistribution as a subspecialty in the United States. She also noted that, from 2016 to 2021, 100% of pediatric dermatology applicants matched, yet about 15 of every 31 positions remained unfilled during each of those years. This suggests that there may be a lack of trainee mentorship secondary to a lack of available pediatric dermatologists.
“Somewhere along the way, we lose trainees to general dermatology, or they may go through a pediatric dermatology fellowship but not actually see children upon completion of their training,” Dr. Diaz, chief of pediatric dermatology at the University of Texas at Austin, said in an interview at the annual meeting of the Society for Pediatric Dermatology, where the study was presented during a poster session. “We wanted to find out factors influencing this.”
For the study, Dr. Diaz, Courtney N. Haller, MD, a first-year dermatology resident at the University of Texas at Austin, and their colleagues emailed a 37-item survey to 59 current and prior pediatric dermatology fellows who trained in the United States in the past 4 years (classes of 2019-2022). Current fellows were asked to share their future plans, and past fellows were asked to share details about their current practice situation including practice type (such as academics, private practice, and a mix of adult and pediatrics), and the researchers used descriptive statistics and chi-square analyses to evaluate qualitative data.
In all, 41 survey participants gave complete responses, and 3 gave partial responses. Of these, 8 were current fellows, 36 were past fellows, and 38 were female. The researchers found that 67% of survey respondents first became interested in pediatric dermatology in medical school, while the decision to pursue a fellowship occurred then (33%) or during their third year of dermatology residency (33%). Early exposure to pediatric dermatology, from medical school through dermatology PGY-2, was significantly associated with an early decision to pursue a pediatric dermatology career (P = .004).
In addition, respondents at institutions with two or more pediatric dermatology faculty were significantly more likely to cite home institution mentorship as an influencing factor in their career decision (P = .035).
“I thought that the interest in pediatric dermatology would peak early on during dermatology residency, but it primarily happens during medical school,” said Dr. Diaz, who is also associate director of the dermatology residency program at the medical school. “Mentorship and early exposure to pediatric dermatology during medical school are really important.”
The top three factors that discouraged respondents from pursuing a pediatric dermatology fellowship included a lack of salary benefit with additional training (83%), additional time required to complete training (73%), and geographic relocation (20%). After fellowship, 51% of respondents said they plan to or currently work in academic settings, while 88% said they plan to work full time or currently were working full time.
Interestingly, fellows with additional pediatric training such as an internship or residency were not more likely to see a greater percentage of pediatric patients in practice than those without this training (P = .14). The top 3 reasons for not seeing pediatric patients 100% of the clinical time were interest in seeing adult patients (67%), financial factors (56%), and interest in performing more procedures (56%).
In other findings, the top three factors in deciding practice location were proximity to extended family (63%), practice type (59%), and income (51%).
Adelaide A. Hebert, MD, who was asked to comment on the study, said that the lack of salary benefit from additional training is a sticking point for many fellows. “The market trends of supply and demand do not work in pediatric dermatology,” said Dr. Hebert, professor of dermatology and pediatrics, and chief of pediatric dermatology at the University of Texas, Houston. “You would think that, because there are fewer of us, we should be paid more, but it does not work that way.”
She characterized the overall study findings as “a real testament to what the challenges are” in recruiting trainees to pediatric dermatology. “The influence of mentors resonates in this assessment, but influences that are somewhat beyond our control also play a role, such as lack of salary benefit from additional training, interest in seeing adult patients, and financial factors.”
Neither the researchers nor Dr. Hebert reported having relevant financial disclosures.
INDIANAPOLIS – Three during and after fellowship.
Those are key findings from a survey of current and prior pediatric dermatology fellows, which sought to investigate what factors influence their career decisions.
According to the study’s principal investigator, Lucia Z. Diaz, MD, pediatric dermatology suffers from workforce shortages and geographic maldistribution as a subspecialty in the United States. She also noted that, from 2016 to 2021, 100% of pediatric dermatology applicants matched, yet about 15 of every 31 positions remained unfilled during each of those years. This suggests that there may be a lack of trainee mentorship secondary to a lack of available pediatric dermatologists.
“Somewhere along the way, we lose trainees to general dermatology, or they may go through a pediatric dermatology fellowship but not actually see children upon completion of their training,” Dr. Diaz, chief of pediatric dermatology at the University of Texas at Austin, said in an interview at the annual meeting of the Society for Pediatric Dermatology, where the study was presented during a poster session. “We wanted to find out factors influencing this.”
For the study, Dr. Diaz, Courtney N. Haller, MD, a first-year dermatology resident at the University of Texas at Austin, and their colleagues emailed a 37-item survey to 59 current and prior pediatric dermatology fellows who trained in the United States in the past 4 years (classes of 2019-2022). Current fellows were asked to share their future plans, and past fellows were asked to share details about their current practice situation including practice type (such as academics, private practice, and a mix of adult and pediatrics), and the researchers used descriptive statistics and chi-square analyses to evaluate qualitative data.
In all, 41 survey participants gave complete responses, and 3 gave partial responses. Of these, 8 were current fellows, 36 were past fellows, and 38 were female. The researchers found that 67% of survey respondents first became interested in pediatric dermatology in medical school, while the decision to pursue a fellowship occurred then (33%) or during their third year of dermatology residency (33%). Early exposure to pediatric dermatology, from medical school through dermatology PGY-2, was significantly associated with an early decision to pursue a pediatric dermatology career (P = .004).
In addition, respondents at institutions with two or more pediatric dermatology faculty were significantly more likely to cite home institution mentorship as an influencing factor in their career decision (P = .035).
“I thought that the interest in pediatric dermatology would peak early on during dermatology residency, but it primarily happens during medical school,” said Dr. Diaz, who is also associate director of the dermatology residency program at the medical school. “Mentorship and early exposure to pediatric dermatology during medical school are really important.”
The top three factors that discouraged respondents from pursuing a pediatric dermatology fellowship included a lack of salary benefit with additional training (83%), additional time required to complete training (73%), and geographic relocation (20%). After fellowship, 51% of respondents said they plan to or currently work in academic settings, while 88% said they plan to work full time or currently were working full time.
Interestingly, fellows with additional pediatric training such as an internship or residency were not more likely to see a greater percentage of pediatric patients in practice than those without this training (P = .14). The top 3 reasons for not seeing pediatric patients 100% of the clinical time were interest in seeing adult patients (67%), financial factors (56%), and interest in performing more procedures (56%).
In other findings, the top three factors in deciding practice location were proximity to extended family (63%), practice type (59%), and income (51%).
Adelaide A. Hebert, MD, who was asked to comment on the study, said that the lack of salary benefit from additional training is a sticking point for many fellows. “The market trends of supply and demand do not work in pediatric dermatology,” said Dr. Hebert, professor of dermatology and pediatrics, and chief of pediatric dermatology at the University of Texas, Houston. “You would think that, because there are fewer of us, we should be paid more, but it does not work that way.”
She characterized the overall study findings as “a real testament to what the challenges are” in recruiting trainees to pediatric dermatology. “The influence of mentors resonates in this assessment, but influences that are somewhat beyond our control also play a role, such as lack of salary benefit from additional training, interest in seeing adult patients, and financial factors.”
Neither the researchers nor Dr. Hebert reported having relevant financial disclosures.
AT SPD 2022
Topical gel for epidermolysis bullosa shows ongoing benefit
GLASGOW, Scotland – the phase 3 safety and efficacy study of the treatment.
Over 200 patients from the trial, including 105 who began treatment with a control gel, continued taking oleogel-S10 after 90 days. The current interim analysis at 12 months indicates there was a 55% reduction in the proportion of the body affected, compared with baseline.
Moreover, reductions in skin activity scores seen in the double-blind phase of the trial were maintained during the open-label extension. About 6% of patients experienced adverse events that led to withdrawal from the study.
The results show that oleogel-S10 was associated with “accelerated wound healing,” said study presenter Tracey Cunningham, MD, chief medical officer, Amryt Pharmaceuticals DAC, Dublin, which is developing the topical agent. “There were no new safety signals with this longer exposure to oleogel-S10, and patients had sustained improvement in wound burden,” she added.
The research was presented at the British Association of Dermatologists (BAD) 2022 Annual Meeting on July 6.
In April, European Medicines Agency recommended approval of oleogel-S10 for the treatment of partial-thickness skin wounds associated with dystrophic and junctional EB for patients aged 6 months and older.
However, just a month earlier, the U.S. Food and Drug Administration declined to approve the topical agent for use in EB, even after it extended its review by 3 months to include additional analyses of data previously submitted by the company.
In the post-presentation discussion, Dr. Cunningham said that the FDA had “not been satisfied at this point with the information that we have given them,” adding, “We don’t agree with the decision, and we will be appealing.”
Raman K. Madan, MD, a dermatologist at Northwell Health, Huntington, New York, who was not involved in the study, said that the reductions in wound healing seen in the study are “meaningful” and that the numbers represent a “big breakthrough.”
He told this news organization that there are “very few products on the market” for EB and that having an option for patients “would be amazing.”
“The big issue here would be cost and coverage for patients,” he said. If approved, “hopefully” it will be affordable, he added.
Dr. Madan noted that from his perspective, the majority of the reactions to the topical gel were “mild,” and there are “a lot of confounding factors” underlying the number of serious adverse events. “These patients with epidermolysis are prone to some of these issues regardless of treatment,” he said.
During her presentation, Dr. Cunningham noted that EB is a rare, debilitating condition that is characterized by varying degrees of skin fragility, blisters, and impaired wound healing that in turn lead to serious complications that affect quality of life.
While wound management is a “fundamental priority” for patients living with EB, she said, there is a “high, unmet” clinical need.
To those ends, EASE was the largest randomized controlled phase 3 efficacy and safety study in EB. In the study, 252 patients were allocated to receive oleogel-S10 or control gel plus standard-of-care nonadhesive wound dressing.
The double-blind phase of the trial met its primary endpoint: A higher proportion of patients who were given oleogel-S10 achieved first complete closure of the EB target wound by day 45, compared with patients who were given control gel, at 41.3% versus 28.9%. This equated to a relative risk of wound closure by day 45 of 1.44, or an odds ratio of 1.84 (P = .013).
However, as reported at the time by this news organization, the difference in time to wound healing by day 90 between the two patient groups was not statistically significant (P = .302), with 50.5% of oleogel-S10 patients achieving wound closure, versus 43.9% of those in the control group.
Dr. Cunningham discussed the open-label extension, which involved 205 patients from the double-blind phase (mean age, of 16.3 years) treated with oleogel-S10 or control gel plus standard-of-care nonadhesive wound dressing for 24 months.
In presenting the results of the first 12 months of the open-label extension, she said that oleogel-S10 led to “consistent” reductions in the body surface area percentage (BSAP) affected by EB. The overall reduction from baseline was 55% after receiving treatment for 15 months.
Between day 90 and month 12 of the open-label extension, the absolute BSAP was reduced from 7.4% to 5.4% for patients who had received oleogel-S10 from the start of the study. For those who started in the control group and then switched to the oleogel-S10 arm during the open-label extension, the reduction was from 8.3% to 6.4%.
Dr. Cunningham pointed out that a 1% reduction in BSAP equates approximately to the palmar surface of the hand.
Scores on the Epidermolysis Bullosa Disease Activity and Scarring Index (EBDASI) Skin activity subscale indicated that the reductions achieved in the double-blind phase of the trial were maintained.
Among patients who received oleogel-S10 from the start of the trial, EBDASI Skin scores were reduced from 19.6 at baseline to 13.5 at 12 months’ follow-up in the open-label extension. The reduction was from 19.6 to 13.5 for those who began the trial taking control gel.
Dr. Cunningham showed that adverse events of any grade were seen in 72.0% of patients who began taking oleogel-S10 at the start of the trial and in 69.5% of those who began the trial taking control gel.
Serious adverse events were recorded in 23.0% and 20.0% of patients, respectively, while 6.0% of those who initially received oleogel-S10 and 6.7% of those initially assigned to control gel experienced adverse events that led to study withdrawal during the open-label phase.
The most frequently reported adverse events in the open-label extension were wound complications, seen in 39.5% of patients; anemia, seen in 14.1%; wound infection, seen in 9.3%; pyrexia, seen in 8.3%; and pruritus, seen in 5.9%. No more details regarding adverse events were provided.
The study was funded by Amryt Pharmaceuticals DAC. Dr. Cunningham is an employee of Amryt Pharmaceuticals. No other relevant financial relationships have been disclosed.
A version of this article first appeared on Medscape.com.
GLASGOW, Scotland – the phase 3 safety and efficacy study of the treatment.
Over 200 patients from the trial, including 105 who began treatment with a control gel, continued taking oleogel-S10 after 90 days. The current interim analysis at 12 months indicates there was a 55% reduction in the proportion of the body affected, compared with baseline.
Moreover, reductions in skin activity scores seen in the double-blind phase of the trial were maintained during the open-label extension. About 6% of patients experienced adverse events that led to withdrawal from the study.
The results show that oleogel-S10 was associated with “accelerated wound healing,” said study presenter Tracey Cunningham, MD, chief medical officer, Amryt Pharmaceuticals DAC, Dublin, which is developing the topical agent. “There were no new safety signals with this longer exposure to oleogel-S10, and patients had sustained improvement in wound burden,” she added.
The research was presented at the British Association of Dermatologists (BAD) 2022 Annual Meeting on July 6.
In April, European Medicines Agency recommended approval of oleogel-S10 for the treatment of partial-thickness skin wounds associated with dystrophic and junctional EB for patients aged 6 months and older.
However, just a month earlier, the U.S. Food and Drug Administration declined to approve the topical agent for use in EB, even after it extended its review by 3 months to include additional analyses of data previously submitted by the company.
In the post-presentation discussion, Dr. Cunningham said that the FDA had “not been satisfied at this point with the information that we have given them,” adding, “We don’t agree with the decision, and we will be appealing.”
Raman K. Madan, MD, a dermatologist at Northwell Health, Huntington, New York, who was not involved in the study, said that the reductions in wound healing seen in the study are “meaningful” and that the numbers represent a “big breakthrough.”
He told this news organization that there are “very few products on the market” for EB and that having an option for patients “would be amazing.”
“The big issue here would be cost and coverage for patients,” he said. If approved, “hopefully” it will be affordable, he added.
Dr. Madan noted that from his perspective, the majority of the reactions to the topical gel were “mild,” and there are “a lot of confounding factors” underlying the number of serious adverse events. “These patients with epidermolysis are prone to some of these issues regardless of treatment,” he said.
During her presentation, Dr. Cunningham noted that EB is a rare, debilitating condition that is characterized by varying degrees of skin fragility, blisters, and impaired wound healing that in turn lead to serious complications that affect quality of life.
While wound management is a “fundamental priority” for patients living with EB, she said, there is a “high, unmet” clinical need.
To those ends, EASE was the largest randomized controlled phase 3 efficacy and safety study in EB. In the study, 252 patients were allocated to receive oleogel-S10 or control gel plus standard-of-care nonadhesive wound dressing.
The double-blind phase of the trial met its primary endpoint: A higher proportion of patients who were given oleogel-S10 achieved first complete closure of the EB target wound by day 45, compared with patients who were given control gel, at 41.3% versus 28.9%. This equated to a relative risk of wound closure by day 45 of 1.44, or an odds ratio of 1.84 (P = .013).
However, as reported at the time by this news organization, the difference in time to wound healing by day 90 between the two patient groups was not statistically significant (P = .302), with 50.5% of oleogel-S10 patients achieving wound closure, versus 43.9% of those in the control group.
Dr. Cunningham discussed the open-label extension, which involved 205 patients from the double-blind phase (mean age, of 16.3 years) treated with oleogel-S10 or control gel plus standard-of-care nonadhesive wound dressing for 24 months.
In presenting the results of the first 12 months of the open-label extension, she said that oleogel-S10 led to “consistent” reductions in the body surface area percentage (BSAP) affected by EB. The overall reduction from baseline was 55% after receiving treatment for 15 months.
Between day 90 and month 12 of the open-label extension, the absolute BSAP was reduced from 7.4% to 5.4% for patients who had received oleogel-S10 from the start of the study. For those who started in the control group and then switched to the oleogel-S10 arm during the open-label extension, the reduction was from 8.3% to 6.4%.
Dr. Cunningham pointed out that a 1% reduction in BSAP equates approximately to the palmar surface of the hand.
Scores on the Epidermolysis Bullosa Disease Activity and Scarring Index (EBDASI) Skin activity subscale indicated that the reductions achieved in the double-blind phase of the trial were maintained.
Among patients who received oleogel-S10 from the start of the trial, EBDASI Skin scores were reduced from 19.6 at baseline to 13.5 at 12 months’ follow-up in the open-label extension. The reduction was from 19.6 to 13.5 for those who began the trial taking control gel.
Dr. Cunningham showed that adverse events of any grade were seen in 72.0% of patients who began taking oleogel-S10 at the start of the trial and in 69.5% of those who began the trial taking control gel.
Serious adverse events were recorded in 23.0% and 20.0% of patients, respectively, while 6.0% of those who initially received oleogel-S10 and 6.7% of those initially assigned to control gel experienced adverse events that led to study withdrawal during the open-label phase.
The most frequently reported adverse events in the open-label extension were wound complications, seen in 39.5% of patients; anemia, seen in 14.1%; wound infection, seen in 9.3%; pyrexia, seen in 8.3%; and pruritus, seen in 5.9%. No more details regarding adverse events were provided.
The study was funded by Amryt Pharmaceuticals DAC. Dr. Cunningham is an employee of Amryt Pharmaceuticals. No other relevant financial relationships have been disclosed.
A version of this article first appeared on Medscape.com.
GLASGOW, Scotland – the phase 3 safety and efficacy study of the treatment.
Over 200 patients from the trial, including 105 who began treatment with a control gel, continued taking oleogel-S10 after 90 days. The current interim analysis at 12 months indicates there was a 55% reduction in the proportion of the body affected, compared with baseline.
Moreover, reductions in skin activity scores seen in the double-blind phase of the trial were maintained during the open-label extension. About 6% of patients experienced adverse events that led to withdrawal from the study.
The results show that oleogel-S10 was associated with “accelerated wound healing,” said study presenter Tracey Cunningham, MD, chief medical officer, Amryt Pharmaceuticals DAC, Dublin, which is developing the topical agent. “There were no new safety signals with this longer exposure to oleogel-S10, and patients had sustained improvement in wound burden,” she added.
The research was presented at the British Association of Dermatologists (BAD) 2022 Annual Meeting on July 6.
In April, European Medicines Agency recommended approval of oleogel-S10 for the treatment of partial-thickness skin wounds associated with dystrophic and junctional EB for patients aged 6 months and older.
However, just a month earlier, the U.S. Food and Drug Administration declined to approve the topical agent for use in EB, even after it extended its review by 3 months to include additional analyses of data previously submitted by the company.
In the post-presentation discussion, Dr. Cunningham said that the FDA had “not been satisfied at this point with the information that we have given them,” adding, “We don’t agree with the decision, and we will be appealing.”
Raman K. Madan, MD, a dermatologist at Northwell Health, Huntington, New York, who was not involved in the study, said that the reductions in wound healing seen in the study are “meaningful” and that the numbers represent a “big breakthrough.”
He told this news organization that there are “very few products on the market” for EB and that having an option for patients “would be amazing.”
“The big issue here would be cost and coverage for patients,” he said. If approved, “hopefully” it will be affordable, he added.
Dr. Madan noted that from his perspective, the majority of the reactions to the topical gel were “mild,” and there are “a lot of confounding factors” underlying the number of serious adverse events. “These patients with epidermolysis are prone to some of these issues regardless of treatment,” he said.
During her presentation, Dr. Cunningham noted that EB is a rare, debilitating condition that is characterized by varying degrees of skin fragility, blisters, and impaired wound healing that in turn lead to serious complications that affect quality of life.
While wound management is a “fundamental priority” for patients living with EB, she said, there is a “high, unmet” clinical need.
To those ends, EASE was the largest randomized controlled phase 3 efficacy and safety study in EB. In the study, 252 patients were allocated to receive oleogel-S10 or control gel plus standard-of-care nonadhesive wound dressing.
The double-blind phase of the trial met its primary endpoint: A higher proportion of patients who were given oleogel-S10 achieved first complete closure of the EB target wound by day 45, compared with patients who were given control gel, at 41.3% versus 28.9%. This equated to a relative risk of wound closure by day 45 of 1.44, or an odds ratio of 1.84 (P = .013).
However, as reported at the time by this news organization, the difference in time to wound healing by day 90 between the two patient groups was not statistically significant (P = .302), with 50.5% of oleogel-S10 patients achieving wound closure, versus 43.9% of those in the control group.
Dr. Cunningham discussed the open-label extension, which involved 205 patients from the double-blind phase (mean age, of 16.3 years) treated with oleogel-S10 or control gel plus standard-of-care nonadhesive wound dressing for 24 months.
In presenting the results of the first 12 months of the open-label extension, she said that oleogel-S10 led to “consistent” reductions in the body surface area percentage (BSAP) affected by EB. The overall reduction from baseline was 55% after receiving treatment for 15 months.
Between day 90 and month 12 of the open-label extension, the absolute BSAP was reduced from 7.4% to 5.4% for patients who had received oleogel-S10 from the start of the study. For those who started in the control group and then switched to the oleogel-S10 arm during the open-label extension, the reduction was from 8.3% to 6.4%.
Dr. Cunningham pointed out that a 1% reduction in BSAP equates approximately to the palmar surface of the hand.
Scores on the Epidermolysis Bullosa Disease Activity and Scarring Index (EBDASI) Skin activity subscale indicated that the reductions achieved in the double-blind phase of the trial were maintained.
Among patients who received oleogel-S10 from the start of the trial, EBDASI Skin scores were reduced from 19.6 at baseline to 13.5 at 12 months’ follow-up in the open-label extension. The reduction was from 19.6 to 13.5 for those who began the trial taking control gel.
Dr. Cunningham showed that adverse events of any grade were seen in 72.0% of patients who began taking oleogel-S10 at the start of the trial and in 69.5% of those who began the trial taking control gel.
Serious adverse events were recorded in 23.0% and 20.0% of patients, respectively, while 6.0% of those who initially received oleogel-S10 and 6.7% of those initially assigned to control gel experienced adverse events that led to study withdrawal during the open-label phase.
The most frequently reported adverse events in the open-label extension were wound complications, seen in 39.5% of patients; anemia, seen in 14.1%; wound infection, seen in 9.3%; pyrexia, seen in 8.3%; and pruritus, seen in 5.9%. No more details regarding adverse events were provided.
The study was funded by Amryt Pharmaceuticals DAC. Dr. Cunningham is an employee of Amryt Pharmaceuticals. No other relevant financial relationships have been disclosed.
A version of this article first appeared on Medscape.com.
Drugging the undruggable
including 68% of pancreatic tumors and 20% of all non–small cell lung cancers (NSCLC).
We now have a treatment – sotorasib – for patients with locally advanced or metastatic NSCLC that is driven by a KRAS mutation (G12C). And, now, there is a second treatment – adagrasib – under study, which, according to a presentation recently made at the annual meeting of the American Society of Clinical Oncology, looks promising.
Ras is a membrane-bound regulatory protein (G protein) belonging to the family of guanosine triphosphatases (GTPases). Ras functions as a guanosine diphosphate/triphosphate binary switch by cycling between the active GTP-bound and the inactive GDP-bound states in response to extracellular stimuli. The KRAS (G12C) mutation affects the active form of KRAS and results in abnormally high concentrations of GTP-bound KRAS leading to hyperactivation of downstream oncogenic pathways and uncontrolled cell growth, specifically of ERK and MEK signaling pathways.
At the ASCO annual meeting in June, Spira and colleagues reported the results of cohort A of the KRYSTAL-1 study evaluating adagrasib as second-line therapy patients with advanced solid tumors harboring a KRAS (G12C) mutation. Like sotorasib, adagrasib is a KRAS (G12C) inhibitor that irreversibly and selectively binds KRAS (G12C), locking it in its inactive state. In this study, patients had to have failed first-line chemotherapy and immunotherapy with 43% of lung cancer patients responding. The 12-month overall survival (OS) was 51%, median overall survival was 12.6 and median progression-free survival (PFS) was 6.5 months. Twenty-five patients with KRAS (G12C)–mutant NSCLC and active, untreated central nervous system metastases received adagrasib in a phase 1b cohort. The intracranial overall response rate was 31.6% and median intracranial PFS was 4.2 months. Systemic ORR was 35.0% (7/20), the disease control rate was 80.0% (16/20) and median duration of response was 9.6 months. Based on these data, a phase 3 trial evaluating adagrasib monotherapy versus docetaxel in previously treated patients with KRAS (G12C) mutant NSCLC is ongoing.
The Food and Drug Administration approval of sotorasib in 2021 was, in part, based on the results of a single-arm, phase 2, second-line study of patients who had previously received platinum-based chemotherapy and/or immunotherapy. An ORR rate of 37.1% was reported with a median PFS of 6.8 months and median OS of 12.5 months leading to the FDA approval. Responses were observed across the range of baseline PD-L1 expression levels: 48% of PD-L1 negative, 39% with PD-L1 between 1%-49%, and 22% of patients with a PD-L1 of greater than 50% having a response.
The major toxicities observed in these studies were gastrointestinal (diarrhea, nausea, vomiting) and hepatic (elevated liver enzymes). About 97% of patients on adagrasib experienced any treatment-related adverse events, and 43% experienced a grade 3 or 4 treatment-related adverse event leading to dose reduction in 52% of patients, a dose interruption in 61% of patients, and a 7% discontinuation rate. About 70% of patients treated with sotorasib had a treatment-related adverse event of any grade, and 21% reported grade 3 or 4 treatment-related adverse events.
A subgroup in the KRYSTAL-1 trial reported an intracranial ORR of 32% in patients with active, untreated CNS metastases. Median overall survival has not yet reached concordance between systemic and intracranial disease control was 88%. In addition, preliminary data from two patients with untreated CNS metastases from a phase 1b cohort found cerebrospinal fluid concentrations of adagrasib with a mean ratio of unbound brain-to-plasma concentration of 0.47, which is comparable or exceeds values for known CNS-penetrant tyrosine kinase inhibitors.
Unfortunately, KRAS (G12C) is not the only KRAS mutation out there. There are a myriad of others, such as G12V and G12D. Hopefully, we will be seeing more drugs aimed at this set of important mutations. Another question, of course, is when and if these drugs will move to the first-line setting.
Dr. Schiller is a medical oncologist and founding member of Oncologists United for Climate and Health. She is a former board member of the International Association for the Study of Lung Cancer and a current board member of the Lung Cancer Research Foundation.
including 68% of pancreatic tumors and 20% of all non–small cell lung cancers (NSCLC).
We now have a treatment – sotorasib – for patients with locally advanced or metastatic NSCLC that is driven by a KRAS mutation (G12C). And, now, there is a second treatment – adagrasib – under study, which, according to a presentation recently made at the annual meeting of the American Society of Clinical Oncology, looks promising.
Ras is a membrane-bound regulatory protein (G protein) belonging to the family of guanosine triphosphatases (GTPases). Ras functions as a guanosine diphosphate/triphosphate binary switch by cycling between the active GTP-bound and the inactive GDP-bound states in response to extracellular stimuli. The KRAS (G12C) mutation affects the active form of KRAS and results in abnormally high concentrations of GTP-bound KRAS leading to hyperactivation of downstream oncogenic pathways and uncontrolled cell growth, specifically of ERK and MEK signaling pathways.
At the ASCO annual meeting in June, Spira and colleagues reported the results of cohort A of the KRYSTAL-1 study evaluating adagrasib as second-line therapy patients with advanced solid tumors harboring a KRAS (G12C) mutation. Like sotorasib, adagrasib is a KRAS (G12C) inhibitor that irreversibly and selectively binds KRAS (G12C), locking it in its inactive state. In this study, patients had to have failed first-line chemotherapy and immunotherapy with 43% of lung cancer patients responding. The 12-month overall survival (OS) was 51%, median overall survival was 12.6 and median progression-free survival (PFS) was 6.5 months. Twenty-five patients with KRAS (G12C)–mutant NSCLC and active, untreated central nervous system metastases received adagrasib in a phase 1b cohort. The intracranial overall response rate was 31.6% and median intracranial PFS was 4.2 months. Systemic ORR was 35.0% (7/20), the disease control rate was 80.0% (16/20) and median duration of response was 9.6 months. Based on these data, a phase 3 trial evaluating adagrasib monotherapy versus docetaxel in previously treated patients with KRAS (G12C) mutant NSCLC is ongoing.
The Food and Drug Administration approval of sotorasib in 2021 was, in part, based on the results of a single-arm, phase 2, second-line study of patients who had previously received platinum-based chemotherapy and/or immunotherapy. An ORR rate of 37.1% was reported with a median PFS of 6.8 months and median OS of 12.5 months leading to the FDA approval. Responses were observed across the range of baseline PD-L1 expression levels: 48% of PD-L1 negative, 39% with PD-L1 between 1%-49%, and 22% of patients with a PD-L1 of greater than 50% having a response.
The major toxicities observed in these studies were gastrointestinal (diarrhea, nausea, vomiting) and hepatic (elevated liver enzymes). About 97% of patients on adagrasib experienced any treatment-related adverse events, and 43% experienced a grade 3 or 4 treatment-related adverse event leading to dose reduction in 52% of patients, a dose interruption in 61% of patients, and a 7% discontinuation rate. About 70% of patients treated with sotorasib had a treatment-related adverse event of any grade, and 21% reported grade 3 or 4 treatment-related adverse events.
A subgroup in the KRYSTAL-1 trial reported an intracranial ORR of 32% in patients with active, untreated CNS metastases. Median overall survival has not yet reached concordance between systemic and intracranial disease control was 88%. In addition, preliminary data from two patients with untreated CNS metastases from a phase 1b cohort found cerebrospinal fluid concentrations of adagrasib with a mean ratio of unbound brain-to-plasma concentration of 0.47, which is comparable or exceeds values for known CNS-penetrant tyrosine kinase inhibitors.
Unfortunately, KRAS (G12C) is not the only KRAS mutation out there. There are a myriad of others, such as G12V and G12D. Hopefully, we will be seeing more drugs aimed at this set of important mutations. Another question, of course, is when and if these drugs will move to the first-line setting.
Dr. Schiller is a medical oncologist and founding member of Oncologists United for Climate and Health. She is a former board member of the International Association for the Study of Lung Cancer and a current board member of the Lung Cancer Research Foundation.
including 68% of pancreatic tumors and 20% of all non–small cell lung cancers (NSCLC).
We now have a treatment – sotorasib – for patients with locally advanced or metastatic NSCLC that is driven by a KRAS mutation (G12C). And, now, there is a second treatment – adagrasib – under study, which, according to a presentation recently made at the annual meeting of the American Society of Clinical Oncology, looks promising.
Ras is a membrane-bound regulatory protein (G protein) belonging to the family of guanosine triphosphatases (GTPases). Ras functions as a guanosine diphosphate/triphosphate binary switch by cycling between the active GTP-bound and the inactive GDP-bound states in response to extracellular stimuli. The KRAS (G12C) mutation affects the active form of KRAS and results in abnormally high concentrations of GTP-bound KRAS leading to hyperactivation of downstream oncogenic pathways and uncontrolled cell growth, specifically of ERK and MEK signaling pathways.
At the ASCO annual meeting in June, Spira and colleagues reported the results of cohort A of the KRYSTAL-1 study evaluating adagrasib as second-line therapy patients with advanced solid tumors harboring a KRAS (G12C) mutation. Like sotorasib, adagrasib is a KRAS (G12C) inhibitor that irreversibly and selectively binds KRAS (G12C), locking it in its inactive state. In this study, patients had to have failed first-line chemotherapy and immunotherapy with 43% of lung cancer patients responding. The 12-month overall survival (OS) was 51%, median overall survival was 12.6 and median progression-free survival (PFS) was 6.5 months. Twenty-five patients with KRAS (G12C)–mutant NSCLC and active, untreated central nervous system metastases received adagrasib in a phase 1b cohort. The intracranial overall response rate was 31.6% and median intracranial PFS was 4.2 months. Systemic ORR was 35.0% (7/20), the disease control rate was 80.0% (16/20) and median duration of response was 9.6 months. Based on these data, a phase 3 trial evaluating adagrasib monotherapy versus docetaxel in previously treated patients with KRAS (G12C) mutant NSCLC is ongoing.
The Food and Drug Administration approval of sotorasib in 2021 was, in part, based on the results of a single-arm, phase 2, second-line study of patients who had previously received platinum-based chemotherapy and/or immunotherapy. An ORR rate of 37.1% was reported with a median PFS of 6.8 months and median OS of 12.5 months leading to the FDA approval. Responses were observed across the range of baseline PD-L1 expression levels: 48% of PD-L1 negative, 39% with PD-L1 between 1%-49%, and 22% of patients with a PD-L1 of greater than 50% having a response.
The major toxicities observed in these studies were gastrointestinal (diarrhea, nausea, vomiting) and hepatic (elevated liver enzymes). About 97% of patients on adagrasib experienced any treatment-related adverse events, and 43% experienced a grade 3 or 4 treatment-related adverse event leading to dose reduction in 52% of patients, a dose interruption in 61% of patients, and a 7% discontinuation rate. About 70% of patients treated with sotorasib had a treatment-related adverse event of any grade, and 21% reported grade 3 or 4 treatment-related adverse events.
A subgroup in the KRYSTAL-1 trial reported an intracranial ORR of 32% in patients with active, untreated CNS metastases. Median overall survival has not yet reached concordance between systemic and intracranial disease control was 88%. In addition, preliminary data from two patients with untreated CNS metastases from a phase 1b cohort found cerebrospinal fluid concentrations of adagrasib with a mean ratio of unbound brain-to-plasma concentration of 0.47, which is comparable or exceeds values for known CNS-penetrant tyrosine kinase inhibitors.
Unfortunately, KRAS (G12C) is not the only KRAS mutation out there. There are a myriad of others, such as G12V and G12D. Hopefully, we will be seeing more drugs aimed at this set of important mutations. Another question, of course, is when and if these drugs will move to the first-line setting.
Dr. Schiller is a medical oncologist and founding member of Oncologists United for Climate and Health. She is a former board member of the International Association for the Study of Lung Cancer and a current board member of the Lung Cancer Research Foundation.
Select patients with breast cancer may skip RT after lumpectomy
The women in this trial who skipped radiotherapy, and were treated with breast-conserving surgery followed by endocrine therapy, had an overall survival rate of 97.2%. The local recurrence rate was 2.3%, which was the study’s primary endpoint.
“Women 55 and over, with low-grade luminal A-type breast cancer, following breast conserving surgery and treated with endocrine therapy alone, had a very low rate of local recurrence at 5 years,” commented lead author Timothy Joseph Whelan, MD.
“The prospective and multicenter nature of this study supports that these patients are candidates for the omission of radiotherapy,” said Dr. Whelan, oncology professor and Canada Research Chair in Breast Cancer Research at McMaster University and a radiation oncologist at the Juravinski Cancer Centre, both in Hamilton, Ont.
“Over 300,000 [people] are diagnosed with invasive breast cancer in North America annually, the majority in the United States,” said Dr. Whelan. “We estimate that these results could apply to 10%-15% of them, so about 30,000-40,000 women per year who could avoid the morbidity, the cost, and inconvenience of radiotherapy.”
The results were presented at the annual meeting of the American Society of Clinical Oncology.
Dr. Whelan explained that adjuvant radiation therapy is generally prescribed following breast conservation therapy to lower the risk of local recurrence, but the treatment is also associated with acute and late toxicity. In addition, it can incur high costs and inconvenience for the patient.
Previous studies have found that among women older than 60 with low-grade, luminal A-type breast cancer who received only breast-conserving surgery, there was a low rate of local recurrence. In women aged older than 70 years, the risk of local recurrence was about 4%-5%.
This latest study focused on patients with breast cancer with a luminal A subtype combined with clinical pathological factors (defined as estrogen receptor ≥ 1%, progesterone receptor > 20%, HER2 negative, and Ki67 ≤ 13.25%).
This was a prospective, multicenter cohort study that included 501 patients aged 55 years and older who had undergone breast-conserving surgery for grade 1-2 T1N0 cancer.
The median patient age was 67, with 442 (88%) older than 75 years. The median tumor size was 1.1 cm.
Median follow-up was 5 years. The cohort was followed every 6 months for the first 2 years and then annually.
The primary outcome was local recurrence defined as time from enrollment to any invasive or noninvasive cancer in the ipsilateral breast, and secondary endpoints included contralateral breast cancer, relapse-free survival based on any recurrence, disease free survival, second cancer or death, and overall survival.
At five years, there were 10 events of local recurrence, for a rate of 2.3%. For secondary outcomes, there were eight events of contralateral breast cancer (1.9%); 12 relapses for a recurrence-free survival rate of 97.3%; 47 disease progression (23 second nonbreast cancers) for a disease-free survival rate of 89.9%; and 13 deaths, including 1 from breast cancer, for an overall survival of 97.2%.
Confirms earlier data
Penny R. Anderson, MD, professor in the department of radiation oncology at Fox Chase Cancer Center, Philadelphia, commented that this was an “extremely well-designed and important study.
“It has identified a specific subset of patients to be appropriate candidates for consideration of omission of adjuvant breast radiation therapy after breast-conserving surgery,” she added.
Although previously published trials have helped identify certain patient groups who have a low risk of local recurrence – and therefore, for whom it may be appropriate to omit radiation – they have been based on the traditional clinical and pathologic factors of tumor size, margin status, receptor status, and patient age.
“This LUMINA trial utilizes the molecular-defined intrinsic subtype of luminal A breast cancer to provide additional prognostic information,” she said. “This finding certainly suggests that this group of patients are ideal candidates for the omission of radiation, and that this should be discussed with these patients as a potential option in their treatment management.”
Overall, this trial is a “significant addition and a very relevant contribution to the literature demonstrating that adjuvant breast radiation may safely be omitted in this particular subgroup of breast cancer patients,” she said.
Unanswered questions
Commenting on the study, Julie Gralow, MD, chief medical officer and executive vice president of ASCO, told this news organization that she thinks the take-home message is that there is “clearly a population of early-stage breast cancer [patients] who after lumpectomy do not benefit from radiation.”
“I think where there will be discussion will be what is the optimal way of identifying that group,” she said, noting that in this study the patients were screened for Ki67, a marker of proliferation.
Testing for Ki67 is not the standard of care, Dr. Gralow pointed out, and there is also a problem with reproducibility since “every lab does it somewhat differently, because it is not a standard pathology approach.”
There are now many unanswered questions, she noted. “Do we need that central testing of Ki67? Do we need to develop guidelines for how to do this? Is this better than if you’ve already run an Oncotype or a MammaPrint test to see if the patient needs chemo, then would that suffice? That is where the discussion will be. We can reduce the number of patients who need radiation without an increase in local regional recurrence.”
In terms of clinical practice, Dr. Gralow explained that there are already some data supporting the omission of radiation therapy in an older population with ER-positive small low-grade tumors, and this has become a standard clinical practice. “It’s not based on solid data, but based on an accumulation of retrospective analyses,” she said. “So we have already been doing it for an older population. This would bring down the age group, and it would better define it, and test it prospectively.”
Limitations to note
Also commenting on the study, Deborah Axelrod, MD, director of clinical breast surgery at New York University Langone’s Perlmutter Cancer Center, explained that, in the last decade, knowledge about the behavior of breast cancers based on molecular subtyping has greatly increased. “Results of studies such as this have given us information on which cancers need more treatment and for which cancers we can de-escalate treatment,” she said. “Refining this more, it’s about reducing the morbidity and improving quality of life without compromising the oncological outcome.”
She noted that a big strength of this LUMINA study is that it is prospective and multicenter. “It has been supported by other past studies as well and will define for which patients with newly treated breast cancers can we omit radiation, which has been the standard of care,” said Dr. Axelrod. “It is based on the age and biology of breast cancer in defining which patient can forgo radiation and showed a low risk of recurrence in a specific population of women with a favorable breast cancer profile”
There were limitations to the study. “There is a 5-year follow-up and local recurrence for ER-positive cancers continues to rise after 5 years, so longer-term follow-up will be important,” she said. Also, she pointed out that it is a single-arm study so there is no radiation therapy comparison arm.
Other limitations were that the patients were older with smaller tumors, and all were committed to 5 years of endocrine therapy, although compliance with that has not been reported. There may be some older patients who prefer radiation therapy, especially a week of accelerated partial breast irradiation, rather than commit to 5 years of endocrine therapy as mandated in this study.
“Overall, the takeaway message for patients is that the omission of radiation therapy should be considered an option for older women with localized breast cancer with favorable features who receive endocrine therapies,” said Dr. Axelrod.
LUMINA was sponsored by the Canadian Breast Cancer Foundation and the Canadian Cancer Society. Dr. Whelan has reported research funding from Exact Sciences (Inst). Dr. Axelrod and Dr. Anderson reported no disclosures. Dr. Gralow reported relationships with Genentech, AstraZeneca, Hexal, Puma BioTechnology, Roche, Novartis, Seagen, and Genomic Health.
A version of this article first appeared on Medscape.com.
The women in this trial who skipped radiotherapy, and were treated with breast-conserving surgery followed by endocrine therapy, had an overall survival rate of 97.2%. The local recurrence rate was 2.3%, which was the study’s primary endpoint.
“Women 55 and over, with low-grade luminal A-type breast cancer, following breast conserving surgery and treated with endocrine therapy alone, had a very low rate of local recurrence at 5 years,” commented lead author Timothy Joseph Whelan, MD.
“The prospective and multicenter nature of this study supports that these patients are candidates for the omission of radiotherapy,” said Dr. Whelan, oncology professor and Canada Research Chair in Breast Cancer Research at McMaster University and a radiation oncologist at the Juravinski Cancer Centre, both in Hamilton, Ont.
“Over 300,000 [people] are diagnosed with invasive breast cancer in North America annually, the majority in the United States,” said Dr. Whelan. “We estimate that these results could apply to 10%-15% of them, so about 30,000-40,000 women per year who could avoid the morbidity, the cost, and inconvenience of radiotherapy.”
The results were presented at the annual meeting of the American Society of Clinical Oncology.
Dr. Whelan explained that adjuvant radiation therapy is generally prescribed following breast conservation therapy to lower the risk of local recurrence, but the treatment is also associated with acute and late toxicity. In addition, it can incur high costs and inconvenience for the patient.
Previous studies have found that among women older than 60 with low-grade, luminal A-type breast cancer who received only breast-conserving surgery, there was a low rate of local recurrence. In women aged older than 70 years, the risk of local recurrence was about 4%-5%.
This latest study focused on patients with breast cancer with a luminal A subtype combined with clinical pathological factors (defined as estrogen receptor ≥ 1%, progesterone receptor > 20%, HER2 negative, and Ki67 ≤ 13.25%).
This was a prospective, multicenter cohort study that included 501 patients aged 55 years and older who had undergone breast-conserving surgery for grade 1-2 T1N0 cancer.
The median patient age was 67, with 442 (88%) older than 75 years. The median tumor size was 1.1 cm.
Median follow-up was 5 years. The cohort was followed every 6 months for the first 2 years and then annually.
The primary outcome was local recurrence defined as time from enrollment to any invasive or noninvasive cancer in the ipsilateral breast, and secondary endpoints included contralateral breast cancer, relapse-free survival based on any recurrence, disease free survival, second cancer or death, and overall survival.
At five years, there were 10 events of local recurrence, for a rate of 2.3%. For secondary outcomes, there were eight events of contralateral breast cancer (1.9%); 12 relapses for a recurrence-free survival rate of 97.3%; 47 disease progression (23 second nonbreast cancers) for a disease-free survival rate of 89.9%; and 13 deaths, including 1 from breast cancer, for an overall survival of 97.2%.
Confirms earlier data
Penny R. Anderson, MD, professor in the department of radiation oncology at Fox Chase Cancer Center, Philadelphia, commented that this was an “extremely well-designed and important study.
“It has identified a specific subset of patients to be appropriate candidates for consideration of omission of adjuvant breast radiation therapy after breast-conserving surgery,” she added.
Although previously published trials have helped identify certain patient groups who have a low risk of local recurrence – and therefore, for whom it may be appropriate to omit radiation – they have been based on the traditional clinical and pathologic factors of tumor size, margin status, receptor status, and patient age.
“This LUMINA trial utilizes the molecular-defined intrinsic subtype of luminal A breast cancer to provide additional prognostic information,” she said. “This finding certainly suggests that this group of patients are ideal candidates for the omission of radiation, and that this should be discussed with these patients as a potential option in their treatment management.”
Overall, this trial is a “significant addition and a very relevant contribution to the literature demonstrating that adjuvant breast radiation may safely be omitted in this particular subgroup of breast cancer patients,” she said.
Unanswered questions
Commenting on the study, Julie Gralow, MD, chief medical officer and executive vice president of ASCO, told this news organization that she thinks the take-home message is that there is “clearly a population of early-stage breast cancer [patients] who after lumpectomy do not benefit from radiation.”
“I think where there will be discussion will be what is the optimal way of identifying that group,” she said, noting that in this study the patients were screened for Ki67, a marker of proliferation.
Testing for Ki67 is not the standard of care, Dr. Gralow pointed out, and there is also a problem with reproducibility since “every lab does it somewhat differently, because it is not a standard pathology approach.”
There are now many unanswered questions, she noted. “Do we need that central testing of Ki67? Do we need to develop guidelines for how to do this? Is this better than if you’ve already run an Oncotype or a MammaPrint test to see if the patient needs chemo, then would that suffice? That is where the discussion will be. We can reduce the number of patients who need radiation without an increase in local regional recurrence.”
In terms of clinical practice, Dr. Gralow explained that there are already some data supporting the omission of radiation therapy in an older population with ER-positive small low-grade tumors, and this has become a standard clinical practice. “It’s not based on solid data, but based on an accumulation of retrospective analyses,” she said. “So we have already been doing it for an older population. This would bring down the age group, and it would better define it, and test it prospectively.”
Limitations to note
Also commenting on the study, Deborah Axelrod, MD, director of clinical breast surgery at New York University Langone’s Perlmutter Cancer Center, explained that, in the last decade, knowledge about the behavior of breast cancers based on molecular subtyping has greatly increased. “Results of studies such as this have given us information on which cancers need more treatment and for which cancers we can de-escalate treatment,” she said. “Refining this more, it’s about reducing the morbidity and improving quality of life without compromising the oncological outcome.”
She noted that a big strength of this LUMINA study is that it is prospective and multicenter. “It has been supported by other past studies as well and will define for which patients with newly treated breast cancers can we omit radiation, which has been the standard of care,” said Dr. Axelrod. “It is based on the age and biology of breast cancer in defining which patient can forgo radiation and showed a low risk of recurrence in a specific population of women with a favorable breast cancer profile”
There were limitations to the study. “There is a 5-year follow-up and local recurrence for ER-positive cancers continues to rise after 5 years, so longer-term follow-up will be important,” she said. Also, she pointed out that it is a single-arm study so there is no radiation therapy comparison arm.
Other limitations were that the patients were older with smaller tumors, and all were committed to 5 years of endocrine therapy, although compliance with that has not been reported. There may be some older patients who prefer radiation therapy, especially a week of accelerated partial breast irradiation, rather than commit to 5 years of endocrine therapy as mandated in this study.
“Overall, the takeaway message for patients is that the omission of radiation therapy should be considered an option for older women with localized breast cancer with favorable features who receive endocrine therapies,” said Dr. Axelrod.
LUMINA was sponsored by the Canadian Breast Cancer Foundation and the Canadian Cancer Society. Dr. Whelan has reported research funding from Exact Sciences (Inst). Dr. Axelrod and Dr. Anderson reported no disclosures. Dr. Gralow reported relationships with Genentech, AstraZeneca, Hexal, Puma BioTechnology, Roche, Novartis, Seagen, and Genomic Health.
A version of this article first appeared on Medscape.com.
The women in this trial who skipped radiotherapy, and were treated with breast-conserving surgery followed by endocrine therapy, had an overall survival rate of 97.2%. The local recurrence rate was 2.3%, which was the study’s primary endpoint.
“Women 55 and over, with low-grade luminal A-type breast cancer, following breast conserving surgery and treated with endocrine therapy alone, had a very low rate of local recurrence at 5 years,” commented lead author Timothy Joseph Whelan, MD.
“The prospective and multicenter nature of this study supports that these patients are candidates for the omission of radiotherapy,” said Dr. Whelan, oncology professor and Canada Research Chair in Breast Cancer Research at McMaster University and a radiation oncologist at the Juravinski Cancer Centre, both in Hamilton, Ont.
“Over 300,000 [people] are diagnosed with invasive breast cancer in North America annually, the majority in the United States,” said Dr. Whelan. “We estimate that these results could apply to 10%-15% of them, so about 30,000-40,000 women per year who could avoid the morbidity, the cost, and inconvenience of radiotherapy.”
The results were presented at the annual meeting of the American Society of Clinical Oncology.
Dr. Whelan explained that adjuvant radiation therapy is generally prescribed following breast conservation therapy to lower the risk of local recurrence, but the treatment is also associated with acute and late toxicity. In addition, it can incur high costs and inconvenience for the patient.
Previous studies have found that among women older than 60 with low-grade, luminal A-type breast cancer who received only breast-conserving surgery, there was a low rate of local recurrence. In women aged older than 70 years, the risk of local recurrence was about 4%-5%.
This latest study focused on patients with breast cancer with a luminal A subtype combined with clinical pathological factors (defined as estrogen receptor ≥ 1%, progesterone receptor > 20%, HER2 negative, and Ki67 ≤ 13.25%).
This was a prospective, multicenter cohort study that included 501 patients aged 55 years and older who had undergone breast-conserving surgery for grade 1-2 T1N0 cancer.
The median patient age was 67, with 442 (88%) older than 75 years. The median tumor size was 1.1 cm.
Median follow-up was 5 years. The cohort was followed every 6 months for the first 2 years and then annually.
The primary outcome was local recurrence defined as time from enrollment to any invasive or noninvasive cancer in the ipsilateral breast, and secondary endpoints included contralateral breast cancer, relapse-free survival based on any recurrence, disease free survival, second cancer or death, and overall survival.
At five years, there were 10 events of local recurrence, for a rate of 2.3%. For secondary outcomes, there were eight events of contralateral breast cancer (1.9%); 12 relapses for a recurrence-free survival rate of 97.3%; 47 disease progression (23 second nonbreast cancers) for a disease-free survival rate of 89.9%; and 13 deaths, including 1 from breast cancer, for an overall survival of 97.2%.
Confirms earlier data
Penny R. Anderson, MD, professor in the department of radiation oncology at Fox Chase Cancer Center, Philadelphia, commented that this was an “extremely well-designed and important study.
“It has identified a specific subset of patients to be appropriate candidates for consideration of omission of adjuvant breast radiation therapy after breast-conserving surgery,” she added.
Although previously published trials have helped identify certain patient groups who have a low risk of local recurrence – and therefore, for whom it may be appropriate to omit radiation – they have been based on the traditional clinical and pathologic factors of tumor size, margin status, receptor status, and patient age.
“This LUMINA trial utilizes the molecular-defined intrinsic subtype of luminal A breast cancer to provide additional prognostic information,” she said. “This finding certainly suggests that this group of patients are ideal candidates for the omission of radiation, and that this should be discussed with these patients as a potential option in their treatment management.”
Overall, this trial is a “significant addition and a very relevant contribution to the literature demonstrating that adjuvant breast radiation may safely be omitted in this particular subgroup of breast cancer patients,” she said.
Unanswered questions
Commenting on the study, Julie Gralow, MD, chief medical officer and executive vice president of ASCO, told this news organization that she thinks the take-home message is that there is “clearly a population of early-stage breast cancer [patients] who after lumpectomy do not benefit from radiation.”
“I think where there will be discussion will be what is the optimal way of identifying that group,” she said, noting that in this study the patients were screened for Ki67, a marker of proliferation.
Testing for Ki67 is not the standard of care, Dr. Gralow pointed out, and there is also a problem with reproducibility since “every lab does it somewhat differently, because it is not a standard pathology approach.”
There are now many unanswered questions, she noted. “Do we need that central testing of Ki67? Do we need to develop guidelines for how to do this? Is this better than if you’ve already run an Oncotype or a MammaPrint test to see if the patient needs chemo, then would that suffice? That is where the discussion will be. We can reduce the number of patients who need radiation without an increase in local regional recurrence.”
In terms of clinical practice, Dr. Gralow explained that there are already some data supporting the omission of radiation therapy in an older population with ER-positive small low-grade tumors, and this has become a standard clinical practice. “It’s not based on solid data, but based on an accumulation of retrospective analyses,” she said. “So we have already been doing it for an older population. This would bring down the age group, and it would better define it, and test it prospectively.”
Limitations to note
Also commenting on the study, Deborah Axelrod, MD, director of clinical breast surgery at New York University Langone’s Perlmutter Cancer Center, explained that, in the last decade, knowledge about the behavior of breast cancers based on molecular subtyping has greatly increased. “Results of studies such as this have given us information on which cancers need more treatment and for which cancers we can de-escalate treatment,” she said. “Refining this more, it’s about reducing the morbidity and improving quality of life without compromising the oncological outcome.”
She noted that a big strength of this LUMINA study is that it is prospective and multicenter. “It has been supported by other past studies as well and will define for which patients with newly treated breast cancers can we omit radiation, which has been the standard of care,” said Dr. Axelrod. “It is based on the age and biology of breast cancer in defining which patient can forgo radiation and showed a low risk of recurrence in a specific population of women with a favorable breast cancer profile”
There were limitations to the study. “There is a 5-year follow-up and local recurrence for ER-positive cancers continues to rise after 5 years, so longer-term follow-up will be important,” she said. Also, she pointed out that it is a single-arm study so there is no radiation therapy comparison arm.
Other limitations were that the patients were older with smaller tumors, and all were committed to 5 years of endocrine therapy, although compliance with that has not been reported. There may be some older patients who prefer radiation therapy, especially a week of accelerated partial breast irradiation, rather than commit to 5 years of endocrine therapy as mandated in this study.
“Overall, the takeaway message for patients is that the omission of radiation therapy should be considered an option for older women with localized breast cancer with favorable features who receive endocrine therapies,” said Dr. Axelrod.
LUMINA was sponsored by the Canadian Breast Cancer Foundation and the Canadian Cancer Society. Dr. Whelan has reported research funding from Exact Sciences (Inst). Dr. Axelrod and Dr. Anderson reported no disclosures. Dr. Gralow reported relationships with Genentech, AstraZeneca, Hexal, Puma BioTechnology, Roche, Novartis, Seagen, and Genomic Health.
A version of this article first appeared on Medscape.com.
FROM ASCO 2022
Eczema causes substantial burden for many infants and preschoolers
INDIANAPOLIS – . Those are key findings from a large international web-based survey that was presented during a poster session at the annual meeting of the Society for Pediatric Dermatology.
“Improved knowledge of the AD-related burden may help reinforce the medical need in the pediatric population and contribute to better and earlier adequate management of the disease,” authors led by Stephan Weidinger , MD, PhD, vice head of the department of dermatology at University Hospital Schleswig-Holstein, Kiel, Germany, wrote in the abstract.
For the study, Dr. Weidinger and colleagues evaluated 1,486 infants and preschoolers with AD aged 6 months to under 6 years, who participated in the Epidemiology of Children with Atopic Dermatitis Reporting on their Experience (EPI-CARE), an international, cross-sectional, web-based survey of children and adolescents. The study population resided in 18 countries from five regions of the world, including North America, Latin America, Europe, Middle East/Eurasia, and East Asia. Parents or guardians answered all questions for infants/preschoolers younger than 4 years of age, while preschoolers aged 4 to younger than 6 years were asked to answer questions related to the impact of AD on their health-related quality of life.
AD severity was assessed using Patient Global Assessment (PtGA), where parents or guardians described their child’s eczema severity over the last week as mild, moderate, or severe. The researchers stratified outcomes by geographic region and AD severity, which included the following atopic comorbidities: worst itch, worst skin pain, and overall sleep disturbance in the past 24 hours as measured by the 0-10 numeric rating scale, where higher scores indicate worse severity; eczema-related hospitalization in the past 12 months; and frequency and average duration of flares over the past month.
The mean age of the study participants was 3 years and 61.6% had mild disease. The most common atopic comorbidities were hay fever, asthma, and seasonal allergies, and the incidence of atopic comorbidities increased with increasing AD severity. One or more atopic comorbidities was reported in 88.3% of patients with mild AD, compared with 92.1% of those with moderate disease and 95.8% of those with severe disease. In addition, infants and preschoolers with moderate or severe AD had worse itch, skin pain, and sleep disturbances over the past 24 hours, compared with those who had mild AD.
More than half of infants and preschoolers with severe AD (54.1%) were reported to have been hospitalized in the past 12 months (this ranged from 30.2% to 71.3% across regions), as did 35% of patients with moderate AD and 32.1% of those with mild AD. In addition, 50.6% of infants and preschoolers with severe AD had more than two flares in the past month, compared with 18.1% of those with moderate AD and 6.3% of those with mild disease.
In other findings, 50.7% of infants and preschoolers with severe AD had flares than lasted an average of 2 or more weeks, compared with 20.8% of those with moderate disease and 10% of those with mild disease. Also, 78.3% of preschoolers aged 4 to less than 6 years had missed one or more days of school in the previous 4 weeks: a mean of 5.1 days among those with mild AD, a mean of 7.3 days among those with moderate AD, and a mean of 12.1 days among those with severe disease.
Raj J. Chovatiya MD, PhD, of the department of dermatology at Northwestern University, Chicago, who was asked to comment on the study, said that infants and preschoolers remain an understudied group despite the high prevalence of AD in this age range. “The results of this study demonstrate a substantial burden of disease in this population, particularly among those with more severe disease,” said Dr. Chovatiya, who also directs the university’s Center for Eczema and Itch. “This includes longer and more frequent AD flares as well as high rates of inpatient hospitalization. These findings suggest that additional research is needed to better characterize disease burden and optimize outcomes for young children with AD.”
The study was funded by Regeneron Pharmaceuticals and Sanofi. Dr. Weidinger and other coauthors reported having received institutional research grants and consulting fees from many pharmaceutical companies that manufacture drugs used for the treatment of psoriasis and eczema.
Dr. Chovatiya disclosed that he has served as an advisory board member, consultant, speaker, and/or investigator for AbbVie, Arcutis, Arena, Beiersdorf, Bristol Myers Squibb, Dermavant, Eli Lilly, EPI Health, Incyte, L’Oréal, the National Eczema Association, Pfizer, Regeneron, Sanofi, and UCB.
INDIANAPOLIS – . Those are key findings from a large international web-based survey that was presented during a poster session at the annual meeting of the Society for Pediatric Dermatology.
“Improved knowledge of the AD-related burden may help reinforce the medical need in the pediatric population and contribute to better and earlier adequate management of the disease,” authors led by Stephan Weidinger , MD, PhD, vice head of the department of dermatology at University Hospital Schleswig-Holstein, Kiel, Germany, wrote in the abstract.
For the study, Dr. Weidinger and colleagues evaluated 1,486 infants and preschoolers with AD aged 6 months to under 6 years, who participated in the Epidemiology of Children with Atopic Dermatitis Reporting on their Experience (EPI-CARE), an international, cross-sectional, web-based survey of children and adolescents. The study population resided in 18 countries from five regions of the world, including North America, Latin America, Europe, Middle East/Eurasia, and East Asia. Parents or guardians answered all questions for infants/preschoolers younger than 4 years of age, while preschoolers aged 4 to younger than 6 years were asked to answer questions related to the impact of AD on their health-related quality of life.
AD severity was assessed using Patient Global Assessment (PtGA), where parents or guardians described their child’s eczema severity over the last week as mild, moderate, or severe. The researchers stratified outcomes by geographic region and AD severity, which included the following atopic comorbidities: worst itch, worst skin pain, and overall sleep disturbance in the past 24 hours as measured by the 0-10 numeric rating scale, where higher scores indicate worse severity; eczema-related hospitalization in the past 12 months; and frequency and average duration of flares over the past month.
The mean age of the study participants was 3 years and 61.6% had mild disease. The most common atopic comorbidities were hay fever, asthma, and seasonal allergies, and the incidence of atopic comorbidities increased with increasing AD severity. One or more atopic comorbidities was reported in 88.3% of patients with mild AD, compared with 92.1% of those with moderate disease and 95.8% of those with severe disease. In addition, infants and preschoolers with moderate or severe AD had worse itch, skin pain, and sleep disturbances over the past 24 hours, compared with those who had mild AD.
More than half of infants and preschoolers with severe AD (54.1%) were reported to have been hospitalized in the past 12 months (this ranged from 30.2% to 71.3% across regions), as did 35% of patients with moderate AD and 32.1% of those with mild AD. In addition, 50.6% of infants and preschoolers with severe AD had more than two flares in the past month, compared with 18.1% of those with moderate AD and 6.3% of those with mild disease.
In other findings, 50.7% of infants and preschoolers with severe AD had flares than lasted an average of 2 or more weeks, compared with 20.8% of those with moderate disease and 10% of those with mild disease. Also, 78.3% of preschoolers aged 4 to less than 6 years had missed one or more days of school in the previous 4 weeks: a mean of 5.1 days among those with mild AD, a mean of 7.3 days among those with moderate AD, and a mean of 12.1 days among those with severe disease.
Raj J. Chovatiya MD, PhD, of the department of dermatology at Northwestern University, Chicago, who was asked to comment on the study, said that infants and preschoolers remain an understudied group despite the high prevalence of AD in this age range. “The results of this study demonstrate a substantial burden of disease in this population, particularly among those with more severe disease,” said Dr. Chovatiya, who also directs the university’s Center for Eczema and Itch. “This includes longer and more frequent AD flares as well as high rates of inpatient hospitalization. These findings suggest that additional research is needed to better characterize disease burden and optimize outcomes for young children with AD.”
The study was funded by Regeneron Pharmaceuticals and Sanofi. Dr. Weidinger and other coauthors reported having received institutional research grants and consulting fees from many pharmaceutical companies that manufacture drugs used for the treatment of psoriasis and eczema.
Dr. Chovatiya disclosed that he has served as an advisory board member, consultant, speaker, and/or investigator for AbbVie, Arcutis, Arena, Beiersdorf, Bristol Myers Squibb, Dermavant, Eli Lilly, EPI Health, Incyte, L’Oréal, the National Eczema Association, Pfizer, Regeneron, Sanofi, and UCB.
INDIANAPOLIS – . Those are key findings from a large international web-based survey that was presented during a poster session at the annual meeting of the Society for Pediatric Dermatology.
“Improved knowledge of the AD-related burden may help reinforce the medical need in the pediatric population and contribute to better and earlier adequate management of the disease,” authors led by Stephan Weidinger , MD, PhD, vice head of the department of dermatology at University Hospital Schleswig-Holstein, Kiel, Germany, wrote in the abstract.
For the study, Dr. Weidinger and colleagues evaluated 1,486 infants and preschoolers with AD aged 6 months to under 6 years, who participated in the Epidemiology of Children with Atopic Dermatitis Reporting on their Experience (EPI-CARE), an international, cross-sectional, web-based survey of children and adolescents. The study population resided in 18 countries from five regions of the world, including North America, Latin America, Europe, Middle East/Eurasia, and East Asia. Parents or guardians answered all questions for infants/preschoolers younger than 4 years of age, while preschoolers aged 4 to younger than 6 years were asked to answer questions related to the impact of AD on their health-related quality of life.
AD severity was assessed using Patient Global Assessment (PtGA), where parents or guardians described their child’s eczema severity over the last week as mild, moderate, or severe. The researchers stratified outcomes by geographic region and AD severity, which included the following atopic comorbidities: worst itch, worst skin pain, and overall sleep disturbance in the past 24 hours as measured by the 0-10 numeric rating scale, where higher scores indicate worse severity; eczema-related hospitalization in the past 12 months; and frequency and average duration of flares over the past month.
The mean age of the study participants was 3 years and 61.6% had mild disease. The most common atopic comorbidities were hay fever, asthma, and seasonal allergies, and the incidence of atopic comorbidities increased with increasing AD severity. One or more atopic comorbidities was reported in 88.3% of patients with mild AD, compared with 92.1% of those with moderate disease and 95.8% of those with severe disease. In addition, infants and preschoolers with moderate or severe AD had worse itch, skin pain, and sleep disturbances over the past 24 hours, compared with those who had mild AD.
More than half of infants and preschoolers with severe AD (54.1%) were reported to have been hospitalized in the past 12 months (this ranged from 30.2% to 71.3% across regions), as did 35% of patients with moderate AD and 32.1% of those with mild AD. In addition, 50.6% of infants and preschoolers with severe AD had more than two flares in the past month, compared with 18.1% of those with moderate AD and 6.3% of those with mild disease.
In other findings, 50.7% of infants and preschoolers with severe AD had flares than lasted an average of 2 or more weeks, compared with 20.8% of those with moderate disease and 10% of those with mild disease. Also, 78.3% of preschoolers aged 4 to less than 6 years had missed one or more days of school in the previous 4 weeks: a mean of 5.1 days among those with mild AD, a mean of 7.3 days among those with moderate AD, and a mean of 12.1 days among those with severe disease.
Raj J. Chovatiya MD, PhD, of the department of dermatology at Northwestern University, Chicago, who was asked to comment on the study, said that infants and preschoolers remain an understudied group despite the high prevalence of AD in this age range. “The results of this study demonstrate a substantial burden of disease in this population, particularly among those with more severe disease,” said Dr. Chovatiya, who also directs the university’s Center for Eczema and Itch. “This includes longer and more frequent AD flares as well as high rates of inpatient hospitalization. These findings suggest that additional research is needed to better characterize disease burden and optimize outcomes for young children with AD.”
The study was funded by Regeneron Pharmaceuticals and Sanofi. Dr. Weidinger and other coauthors reported having received institutional research grants and consulting fees from many pharmaceutical companies that manufacture drugs used for the treatment of psoriasis and eczema.
Dr. Chovatiya disclosed that he has served as an advisory board member, consultant, speaker, and/or investigator for AbbVie, Arcutis, Arena, Beiersdorf, Bristol Myers Squibb, Dermavant, Eli Lilly, EPI Health, Incyte, L’Oréal, the National Eczema Association, Pfizer, Regeneron, Sanofi, and UCB.
AT SPD 2022