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Does colchicine have a role in treating excess ASCVD risk in patients with chronic inflammatory conditions?
The recent Food and Drug Administration approval of colchicine 0.5 mg (Lodoco) for use in atherosclerotic cardiovascular disease (ASCVD) prevention will possibly create opportunities to use the drug to treat residual risk for ASCVD in some patients with immune-mediated inflammatory diseases, particularly in rheumatology.
Potential in rheumatology
The 0.5-mg dose is just a shade under the 0.6-mg, twice daily dosing rheumatologists typically prescribe for gout, Christie Bartels, MD, MS, chief of rheumatology at the University of Wisconsin–Madison, said in an interview. Clinicians also use the 0.6-mg dose off-label for pseudogout or calcium pyrophosphate deposition disease (CPPD), Dr. Bartels noted.
The new formulation opens the consideration for using colchicine more in patients with psoriatic arthritis, lupus, and rheumatoid arthritis, she said. “I think we could certainly discuss it, particularly, in secondary prevention patients who already had an event or who are at the highest risk and already on optimal traditional agents,” she said.
She cited previous comments by Paul Ridker, MD, director of the center for cardiovascular disease prevention at Brigham and Women’s Hospital in Boston, and developer of the high-sensitivity C-reactive protein (hsCRP) test for measuring inflammatory markers. “We might not know the answer because Dr. Ridker pointed out he used colchicine 0.5 mg in patients that had a high-sensitivity CRP that was high; we need patients who have had inflammation of unknown origin, so those patients presumably weren’t already on another anti-inflammatory,” she said, noting that hydroxychloroquine, methotrexate, and some biologics provide some protection from cardiovascular risks.
However, a potential role for long-term colchicine 0.5 mg in ASCVD prevention may cause consideration for changing the drug’s role in gout treatment, Dr. Bartels said. “In gout, where we do have an FDA-approved indication for colchicine, we used to use it only for the first 6 months while we were getting patients to goal on allopurinol, which was usually then monotherapy after the first 6 months,” she said. “I think this will likely change how I treat gout patients in that I may also offer to continue both medications [colchicine and allopurinol] if they are tolerating them well.
“And then in patients where I’m using it off-label in CPPD, I might again share with them that in addition to possibly helping their CPPD, there may be this added benefit to reduce inflammation just in discussing the risks and benefits of the medicine.”
However, rheumatologists must be careful in using colchicine beyond the typical 6-month cycle, Dr. Bartels said. “One of the tricky things with colchicine, and part of the reason we did not traditionally continue it specifically past the first 6 months, was that it can cause myopathies or cytopenias, so we still have to counsel patients regarding these risks and monitor that,” she said.
Additionally, colchicine can have drug interactions with statins or calcium channel blockers that can change colchicine levels. “I think the dose here is so low, the 0.5 mg, that it’s probably still safe, but again, it’s something that we have to take a look at in the patient’s whole picture and the rest of their burden of their meds in order to make a decision with them,” Dr. Bartels said.
Possibilities in dermatology
The LoDoCo2 trial one of two major randomized trials that supported approval of colchicine 0.5 mg, reported that treated patients had a 60% lower rate of gout than the placebo group (1.4% vs. 3.4%). Joel Gelfand, MD, MSCE, the James J. Leyden professor of dermatology and epidemiology at the University of Pennsylvania, Philadelphia, pointed to this in evaluating the dermatologic implications of the drug’s approval. “This may be of particular interest as people with psoriasis have an increased risk of gout,” he said in emailed comments.
Colchicine’s mechanism of action to reduce inflammation parallels that of tumor necrosis factor (TNF) inhibitors used for dermatologic indications, namely by inhibiting leukocyte adhesion to disrupt the downregulation of TNF receptors, Dr. Gelfand said.
“Interestingly, observational data suggests biologics that target TNF such as adalimumab, etanercept, etc., are associated with a reduction in CV events, and in placebo-controlled trials we conducted in psoriasis patients, it reduced key inflammatory mediators of cardiovascular disease, including IL [interleukin]-6,” he said. “Randomized clinical trials to evaluate the ability of TNF inhibitors, which are now available as biosimilars, to prevent cardiovascular events in high-risk patients, should be conducted, and more work is needed to identify which additional immune-targeted treatments may lower CV risk with an acceptable safety profile.”
Colchicine currently has few indications for rare conditions in dermatology, Dr. Gelfand said, including Sweets syndrome, subcorneal pustular dermatosis, and cutaneous vasculitis. “There are some reports to suggest it may help psoriatic disease, but current data are limited and insufficient to recommend its use for psoriasis and/or psoriatic arthritis,” he said.
The approval of colchicine 0.5 mg for ASCVD could be meaningful for people with psoriasis who are also being treated for CV risk factors, Dr. Gelfand said. “Additional considerations such as signs of residual inflammation (elevated hsCRP) and CV imaging findings may be used to further guide shared decision-making for optimal use,” he said.
Another consideration he noted: “This is also a novel 0.5-mg formulation, and thus cost may be an issue.”
Would side effects bar use in gastroenterology?
Colchicine 0.5 mg may not move the needle much for expanding treatment of ASCVD in patients with inflammatory bowel disease (IBD) and potentially other gastrointestinal conditions, Edward Loftus Jr., MD, the Maxine and Jack Zarrow Family professor of gastroenterology specifically for IBD at the Mayo Clinic in Rochester, Minn., told MDEdge in emailed comments. “Given the GI side effect profile [of colchicine], I am not sure I would go there,” he said.
“Hopefully, the prescribers of this low-dose formulation are aware of the gastrointestinal side effects, such as diarrhea and nausea, and educate patients about these side effects so that a proper risk-benefit discussion can ensue,” he said.
Dr. Bartels reporting a previous financial relationship with Pfizer. Dr. Gelfand said he has financial relationships with AbbVie, Amgen, Bristol-Myers Squibb, Boehringer Ingelheim, Celldex, GlaxoSmithKline, Twill, Lilly, Leo, Moonlake, Janssen Biologics, Novartis, Pfizer, UCB, Neuroderm, and Veolia North America. Dr. Loftus disclosed relationships with AbbVie, Alvotech, Amgen, Arena, Avalo, Boehringer Ingelheim, Bristol-Myers Squibb, Celgene/Receptos, Celltrion Healthcare, Eli Lilly, Fresenius Kabi, Genentech, Gilead, GlaxoSmithKline, Gossamer Bio, Iterative Health, Janssen, KSL Diagnostics, Morphic, Ono, Pfizer, Sun, Surrozen, Takeda, Theravance, and UCB.
The recent Food and Drug Administration approval of colchicine 0.5 mg (Lodoco) for use in atherosclerotic cardiovascular disease (ASCVD) prevention will possibly create opportunities to use the drug to treat residual risk for ASCVD in some patients with immune-mediated inflammatory diseases, particularly in rheumatology.
Potential in rheumatology
The 0.5-mg dose is just a shade under the 0.6-mg, twice daily dosing rheumatologists typically prescribe for gout, Christie Bartels, MD, MS, chief of rheumatology at the University of Wisconsin–Madison, said in an interview. Clinicians also use the 0.6-mg dose off-label for pseudogout or calcium pyrophosphate deposition disease (CPPD), Dr. Bartels noted.
The new formulation opens the consideration for using colchicine more in patients with psoriatic arthritis, lupus, and rheumatoid arthritis, she said. “I think we could certainly discuss it, particularly, in secondary prevention patients who already had an event or who are at the highest risk and already on optimal traditional agents,” she said.
She cited previous comments by Paul Ridker, MD, director of the center for cardiovascular disease prevention at Brigham and Women’s Hospital in Boston, and developer of the high-sensitivity C-reactive protein (hsCRP) test for measuring inflammatory markers. “We might not know the answer because Dr. Ridker pointed out he used colchicine 0.5 mg in patients that had a high-sensitivity CRP that was high; we need patients who have had inflammation of unknown origin, so those patients presumably weren’t already on another anti-inflammatory,” she said, noting that hydroxychloroquine, methotrexate, and some biologics provide some protection from cardiovascular risks.
However, a potential role for long-term colchicine 0.5 mg in ASCVD prevention may cause consideration for changing the drug’s role in gout treatment, Dr. Bartels said. “In gout, where we do have an FDA-approved indication for colchicine, we used to use it only for the first 6 months while we were getting patients to goal on allopurinol, which was usually then monotherapy after the first 6 months,” she said. “I think this will likely change how I treat gout patients in that I may also offer to continue both medications [colchicine and allopurinol] if they are tolerating them well.
“And then in patients where I’m using it off-label in CPPD, I might again share with them that in addition to possibly helping their CPPD, there may be this added benefit to reduce inflammation just in discussing the risks and benefits of the medicine.”
However, rheumatologists must be careful in using colchicine beyond the typical 6-month cycle, Dr. Bartels said. “One of the tricky things with colchicine, and part of the reason we did not traditionally continue it specifically past the first 6 months, was that it can cause myopathies or cytopenias, so we still have to counsel patients regarding these risks and monitor that,” she said.
Additionally, colchicine can have drug interactions with statins or calcium channel blockers that can change colchicine levels. “I think the dose here is so low, the 0.5 mg, that it’s probably still safe, but again, it’s something that we have to take a look at in the patient’s whole picture and the rest of their burden of their meds in order to make a decision with them,” Dr. Bartels said.
Possibilities in dermatology
The LoDoCo2 trial one of two major randomized trials that supported approval of colchicine 0.5 mg, reported that treated patients had a 60% lower rate of gout than the placebo group (1.4% vs. 3.4%). Joel Gelfand, MD, MSCE, the James J. Leyden professor of dermatology and epidemiology at the University of Pennsylvania, Philadelphia, pointed to this in evaluating the dermatologic implications of the drug’s approval. “This may be of particular interest as people with psoriasis have an increased risk of gout,” he said in emailed comments.
Colchicine’s mechanism of action to reduce inflammation parallels that of tumor necrosis factor (TNF) inhibitors used for dermatologic indications, namely by inhibiting leukocyte adhesion to disrupt the downregulation of TNF receptors, Dr. Gelfand said.
“Interestingly, observational data suggests biologics that target TNF such as adalimumab, etanercept, etc., are associated with a reduction in CV events, and in placebo-controlled trials we conducted in psoriasis patients, it reduced key inflammatory mediators of cardiovascular disease, including IL [interleukin]-6,” he said. “Randomized clinical trials to evaluate the ability of TNF inhibitors, which are now available as biosimilars, to prevent cardiovascular events in high-risk patients, should be conducted, and more work is needed to identify which additional immune-targeted treatments may lower CV risk with an acceptable safety profile.”
Colchicine currently has few indications for rare conditions in dermatology, Dr. Gelfand said, including Sweets syndrome, subcorneal pustular dermatosis, and cutaneous vasculitis. “There are some reports to suggest it may help psoriatic disease, but current data are limited and insufficient to recommend its use for psoriasis and/or psoriatic arthritis,” he said.
The approval of colchicine 0.5 mg for ASCVD could be meaningful for people with psoriasis who are also being treated for CV risk factors, Dr. Gelfand said. “Additional considerations such as signs of residual inflammation (elevated hsCRP) and CV imaging findings may be used to further guide shared decision-making for optimal use,” he said.
Another consideration he noted: “This is also a novel 0.5-mg formulation, and thus cost may be an issue.”
Would side effects bar use in gastroenterology?
Colchicine 0.5 mg may not move the needle much for expanding treatment of ASCVD in patients with inflammatory bowel disease (IBD) and potentially other gastrointestinal conditions, Edward Loftus Jr., MD, the Maxine and Jack Zarrow Family professor of gastroenterology specifically for IBD at the Mayo Clinic in Rochester, Minn., told MDEdge in emailed comments. “Given the GI side effect profile [of colchicine], I am not sure I would go there,” he said.
“Hopefully, the prescribers of this low-dose formulation are aware of the gastrointestinal side effects, such as diarrhea and nausea, and educate patients about these side effects so that a proper risk-benefit discussion can ensue,” he said.
Dr. Bartels reporting a previous financial relationship with Pfizer. Dr. Gelfand said he has financial relationships with AbbVie, Amgen, Bristol-Myers Squibb, Boehringer Ingelheim, Celldex, GlaxoSmithKline, Twill, Lilly, Leo, Moonlake, Janssen Biologics, Novartis, Pfizer, UCB, Neuroderm, and Veolia North America. Dr. Loftus disclosed relationships with AbbVie, Alvotech, Amgen, Arena, Avalo, Boehringer Ingelheim, Bristol-Myers Squibb, Celgene/Receptos, Celltrion Healthcare, Eli Lilly, Fresenius Kabi, Genentech, Gilead, GlaxoSmithKline, Gossamer Bio, Iterative Health, Janssen, KSL Diagnostics, Morphic, Ono, Pfizer, Sun, Surrozen, Takeda, Theravance, and UCB.
The recent Food and Drug Administration approval of colchicine 0.5 mg (Lodoco) for use in atherosclerotic cardiovascular disease (ASCVD) prevention will possibly create opportunities to use the drug to treat residual risk for ASCVD in some patients with immune-mediated inflammatory diseases, particularly in rheumatology.
Potential in rheumatology
The 0.5-mg dose is just a shade under the 0.6-mg, twice daily dosing rheumatologists typically prescribe for gout, Christie Bartels, MD, MS, chief of rheumatology at the University of Wisconsin–Madison, said in an interview. Clinicians also use the 0.6-mg dose off-label for pseudogout or calcium pyrophosphate deposition disease (CPPD), Dr. Bartels noted.
The new formulation opens the consideration for using colchicine more in patients with psoriatic arthritis, lupus, and rheumatoid arthritis, she said. “I think we could certainly discuss it, particularly, in secondary prevention patients who already had an event or who are at the highest risk and already on optimal traditional agents,” she said.
She cited previous comments by Paul Ridker, MD, director of the center for cardiovascular disease prevention at Brigham and Women’s Hospital in Boston, and developer of the high-sensitivity C-reactive protein (hsCRP) test for measuring inflammatory markers. “We might not know the answer because Dr. Ridker pointed out he used colchicine 0.5 mg in patients that had a high-sensitivity CRP that was high; we need patients who have had inflammation of unknown origin, so those patients presumably weren’t already on another anti-inflammatory,” she said, noting that hydroxychloroquine, methotrexate, and some biologics provide some protection from cardiovascular risks.
However, a potential role for long-term colchicine 0.5 mg in ASCVD prevention may cause consideration for changing the drug’s role in gout treatment, Dr. Bartels said. “In gout, where we do have an FDA-approved indication for colchicine, we used to use it only for the first 6 months while we were getting patients to goal on allopurinol, which was usually then monotherapy after the first 6 months,” she said. “I think this will likely change how I treat gout patients in that I may also offer to continue both medications [colchicine and allopurinol] if they are tolerating them well.
“And then in patients where I’m using it off-label in CPPD, I might again share with them that in addition to possibly helping their CPPD, there may be this added benefit to reduce inflammation just in discussing the risks and benefits of the medicine.”
However, rheumatologists must be careful in using colchicine beyond the typical 6-month cycle, Dr. Bartels said. “One of the tricky things with colchicine, and part of the reason we did not traditionally continue it specifically past the first 6 months, was that it can cause myopathies or cytopenias, so we still have to counsel patients regarding these risks and monitor that,” she said.
Additionally, colchicine can have drug interactions with statins or calcium channel blockers that can change colchicine levels. “I think the dose here is so low, the 0.5 mg, that it’s probably still safe, but again, it’s something that we have to take a look at in the patient’s whole picture and the rest of their burden of their meds in order to make a decision with them,” Dr. Bartels said.
Possibilities in dermatology
The LoDoCo2 trial one of two major randomized trials that supported approval of colchicine 0.5 mg, reported that treated patients had a 60% lower rate of gout than the placebo group (1.4% vs. 3.4%). Joel Gelfand, MD, MSCE, the James J. Leyden professor of dermatology and epidemiology at the University of Pennsylvania, Philadelphia, pointed to this in evaluating the dermatologic implications of the drug’s approval. “This may be of particular interest as people with psoriasis have an increased risk of gout,” he said in emailed comments.
Colchicine’s mechanism of action to reduce inflammation parallels that of tumor necrosis factor (TNF) inhibitors used for dermatologic indications, namely by inhibiting leukocyte adhesion to disrupt the downregulation of TNF receptors, Dr. Gelfand said.
“Interestingly, observational data suggests biologics that target TNF such as adalimumab, etanercept, etc., are associated with a reduction in CV events, and in placebo-controlled trials we conducted in psoriasis patients, it reduced key inflammatory mediators of cardiovascular disease, including IL [interleukin]-6,” he said. “Randomized clinical trials to evaluate the ability of TNF inhibitors, which are now available as biosimilars, to prevent cardiovascular events in high-risk patients, should be conducted, and more work is needed to identify which additional immune-targeted treatments may lower CV risk with an acceptable safety profile.”
Colchicine currently has few indications for rare conditions in dermatology, Dr. Gelfand said, including Sweets syndrome, subcorneal pustular dermatosis, and cutaneous vasculitis. “There are some reports to suggest it may help psoriatic disease, but current data are limited and insufficient to recommend its use for psoriasis and/or psoriatic arthritis,” he said.
The approval of colchicine 0.5 mg for ASCVD could be meaningful for people with psoriasis who are also being treated for CV risk factors, Dr. Gelfand said. “Additional considerations such as signs of residual inflammation (elevated hsCRP) and CV imaging findings may be used to further guide shared decision-making for optimal use,” he said.
Another consideration he noted: “This is also a novel 0.5-mg formulation, and thus cost may be an issue.”
Would side effects bar use in gastroenterology?
Colchicine 0.5 mg may not move the needle much for expanding treatment of ASCVD in patients with inflammatory bowel disease (IBD) and potentially other gastrointestinal conditions, Edward Loftus Jr., MD, the Maxine and Jack Zarrow Family professor of gastroenterology specifically for IBD at the Mayo Clinic in Rochester, Minn., told MDEdge in emailed comments. “Given the GI side effect profile [of colchicine], I am not sure I would go there,” he said.
“Hopefully, the prescribers of this low-dose formulation are aware of the gastrointestinal side effects, such as diarrhea and nausea, and educate patients about these side effects so that a proper risk-benefit discussion can ensue,” he said.
Dr. Bartels reporting a previous financial relationship with Pfizer. Dr. Gelfand said he has financial relationships with AbbVie, Amgen, Bristol-Myers Squibb, Boehringer Ingelheim, Celldex, GlaxoSmithKline, Twill, Lilly, Leo, Moonlake, Janssen Biologics, Novartis, Pfizer, UCB, Neuroderm, and Veolia North America. Dr. Loftus disclosed relationships with AbbVie, Alvotech, Amgen, Arena, Avalo, Boehringer Ingelheim, Bristol-Myers Squibb, Celgene/Receptos, Celltrion Healthcare, Eli Lilly, Fresenius Kabi, Genentech, Gilead, GlaxoSmithKline, Gossamer Bio, Iterative Health, Janssen, KSL Diagnostics, Morphic, Ono, Pfizer, Sun, Surrozen, Takeda, Theravance, and UCB.
Study points to need to improve identification of culprit in SJS/TEN cases
demonstrated.
“Prompt identification and discontinuation of a culprit drug is critical to improving patient outcomes and preventing recurrence,” researchers led by Sherrie J. Divito, MD, PhD, of the department of dermatology at Brigham and Women’s Hospital, Boston, wrote in the study, which was published online in JAMA Dermatology. “Identification is difficult because there is no laboratory test or other criterion standard (in the absence of rechallenge) to identify a culprit drug, and patients take on average six medications at the time of their reaction. Consequently, many patients may be labeled as allergic to multiple agents.”
Although failing to identify the culprit drug can have severe consequences, they added, “overlabeling” (labeling a patient as allergic to a drug or drugs that they can tolerate safely) “is not insignificant.” As a result of overlabeling, “the patient may receive a less efficacious, more toxic, and/or more expensive agent than necessary, and in some cases may be left without treatment for their underlying disease.”
To evaluate the outcomes of patients’ allergy lists, current approaches to identify culprit drugs such as the Algorithm for Drug Causality for Epidermal Necrolysis (ALDEN), which was published in 2010, and potential methods of improving culprit drug identification, the researchers performed a retrospective cohort study of 48 patients at Brigham and Women’s Hospital and Massachusetts General Hospital, with clinically and histologically confirmed cases of SJS/TEN between January 2000 and July 2018. Of the 48 patients, 26 had SJS/TEN overlap and 22 had TEN. Their median age at diagnosis was 40 years; 60.4% were female; and 52.1% were white, 12.5% were Black, 10.4% were Hispanic, and 8.3% were Asian. They took a median of 6.5 drugs in the 3 months prior to disease onset.
The researchers observed that all patients had at least one drug labeled as an allergy. A single culprit drug was labeled in 17 cases, but physicians communicated certainty in only 7 of those cases. Among all 48 patients, 104 drugs were labeled as allergies.
To identify a culprit drug, physicians appeared to mainly rely on two factors: drug notoriety and timing of exposure, compared with the onset of SJS/TEN. “Identifying high-risk medications seemed heuristic, with one or more drugs in question noted in the record as a common culprit without reference to published or vetted data regarding risk,” the researchers wrote. “Regarding timing, drug charts when present in medical records were incomplete, as they focused predominantly on high-notoriety drugs.”
In other findings, ALDEN scoring was discordant with physician-labeled lists in 28 cases. It labeled an additional 9 drugs missed by physicians and scored 43 drugs labeled as allergens by physicians as “unlikely.” The researchers also reported that 20 cases could have potentially benefited from human leukocyte antigen testing.
Their results “underscore the need for a laboratory test to identify culprit drugs,” but without such a test, “a systematic unbiased approach, such as ALDEN or the RegiSCAR database, with possibly HLA testing, should be considered to ensure the true culprit drug is not missed and exonerate as many nonculprit drugs as possible,” Dr. Divito and colleagues concluded.
They acknowledged certain limitations of the analysis, including its retrospective design and that many cases predated research advances in the topic area that took place during the 18-year study period.
Karl Saardi, MD, director of the inpatient dermatology service at George Washington University Hospital, Washington, who was asked to comment on the study, said that the findings “are consistent with clinical practice in that drug causality is usually determined by ‘gestalt’ rather than objective tools like the ALDEN algorithm.”
“The main limitation is the small size, which suggests the study sites are low-volume centers for SJS/TEN. The fact that the ALDEN score wasn’t developed until 2010 means that all the cases included prior to 2010 would not have applied the ALDEN algorithm, so I think the metric about how infrequently ALDEN was applied is not very meaningful.”
Still, he said that he was “surprised” by the number of medications that were added as allergies based on clinical impression, “and I’m glad this article does cast some light on the issue. In my experience, beta-lactam antibiotics are often – incorrectly – deemed to be the cause of SJS/TEN when further review of the patient’s medication history clearly shows they have tolerated these drugs multiple times in the past.”
Since 2000, he added, “our understanding of SJS/TEN has grown substantially including the identification of MIRM [mycoplasma-induced rash and mucositis]/RIME [reactive infections mucocutaneous eruptions] and GBFDE [generalized bullous fixed drug eruption] as mimickers.”
Christine Ko, MD, professor of dermatology and pathology at Yale University, New Haven, Conn., who was also asked to comment on the study, agreed that a limitation of the study is that it partially preceded development of the unbiased approaches to determining the cause of a medication reaction, such as the ALDEN system. “A strength of this study is the examination of heuristics in dermatology and how they relate to patient safety,” she added.
The study was funded by grants from the National Institutes of Health, a Dermatology Foundation Diversity Research Supplement Award, and by the German Research Foundation. Dr. Divito reported receiving personal fees from Adaptimmune and MEI Pharma and a provisional patent issued from Brigham and Women’s Hospital outside the submitted work. Neither Dr. Saardi nor Dr. Ko reported having relevant disclosures.
demonstrated.
“Prompt identification and discontinuation of a culprit drug is critical to improving patient outcomes and preventing recurrence,” researchers led by Sherrie J. Divito, MD, PhD, of the department of dermatology at Brigham and Women’s Hospital, Boston, wrote in the study, which was published online in JAMA Dermatology. “Identification is difficult because there is no laboratory test or other criterion standard (in the absence of rechallenge) to identify a culprit drug, and patients take on average six medications at the time of their reaction. Consequently, many patients may be labeled as allergic to multiple agents.”
Although failing to identify the culprit drug can have severe consequences, they added, “overlabeling” (labeling a patient as allergic to a drug or drugs that they can tolerate safely) “is not insignificant.” As a result of overlabeling, “the patient may receive a less efficacious, more toxic, and/or more expensive agent than necessary, and in some cases may be left without treatment for their underlying disease.”
To evaluate the outcomes of patients’ allergy lists, current approaches to identify culprit drugs such as the Algorithm for Drug Causality for Epidermal Necrolysis (ALDEN), which was published in 2010, and potential methods of improving culprit drug identification, the researchers performed a retrospective cohort study of 48 patients at Brigham and Women’s Hospital and Massachusetts General Hospital, with clinically and histologically confirmed cases of SJS/TEN between January 2000 and July 2018. Of the 48 patients, 26 had SJS/TEN overlap and 22 had TEN. Their median age at diagnosis was 40 years; 60.4% were female; and 52.1% were white, 12.5% were Black, 10.4% were Hispanic, and 8.3% were Asian. They took a median of 6.5 drugs in the 3 months prior to disease onset.
The researchers observed that all patients had at least one drug labeled as an allergy. A single culprit drug was labeled in 17 cases, but physicians communicated certainty in only 7 of those cases. Among all 48 patients, 104 drugs were labeled as allergies.
To identify a culprit drug, physicians appeared to mainly rely on two factors: drug notoriety and timing of exposure, compared with the onset of SJS/TEN. “Identifying high-risk medications seemed heuristic, with one or more drugs in question noted in the record as a common culprit without reference to published or vetted data regarding risk,” the researchers wrote. “Regarding timing, drug charts when present in medical records were incomplete, as they focused predominantly on high-notoriety drugs.”
In other findings, ALDEN scoring was discordant with physician-labeled lists in 28 cases. It labeled an additional 9 drugs missed by physicians and scored 43 drugs labeled as allergens by physicians as “unlikely.” The researchers also reported that 20 cases could have potentially benefited from human leukocyte antigen testing.
Their results “underscore the need for a laboratory test to identify culprit drugs,” but without such a test, “a systematic unbiased approach, such as ALDEN or the RegiSCAR database, with possibly HLA testing, should be considered to ensure the true culprit drug is not missed and exonerate as many nonculprit drugs as possible,” Dr. Divito and colleagues concluded.
They acknowledged certain limitations of the analysis, including its retrospective design and that many cases predated research advances in the topic area that took place during the 18-year study period.
Karl Saardi, MD, director of the inpatient dermatology service at George Washington University Hospital, Washington, who was asked to comment on the study, said that the findings “are consistent with clinical practice in that drug causality is usually determined by ‘gestalt’ rather than objective tools like the ALDEN algorithm.”
“The main limitation is the small size, which suggests the study sites are low-volume centers for SJS/TEN. The fact that the ALDEN score wasn’t developed until 2010 means that all the cases included prior to 2010 would not have applied the ALDEN algorithm, so I think the metric about how infrequently ALDEN was applied is not very meaningful.”
Still, he said that he was “surprised” by the number of medications that were added as allergies based on clinical impression, “and I’m glad this article does cast some light on the issue. In my experience, beta-lactam antibiotics are often – incorrectly – deemed to be the cause of SJS/TEN when further review of the patient’s medication history clearly shows they have tolerated these drugs multiple times in the past.”
Since 2000, he added, “our understanding of SJS/TEN has grown substantially including the identification of MIRM [mycoplasma-induced rash and mucositis]/RIME [reactive infections mucocutaneous eruptions] and GBFDE [generalized bullous fixed drug eruption] as mimickers.”
Christine Ko, MD, professor of dermatology and pathology at Yale University, New Haven, Conn., who was also asked to comment on the study, agreed that a limitation of the study is that it partially preceded development of the unbiased approaches to determining the cause of a medication reaction, such as the ALDEN system. “A strength of this study is the examination of heuristics in dermatology and how they relate to patient safety,” she added.
The study was funded by grants from the National Institutes of Health, a Dermatology Foundation Diversity Research Supplement Award, and by the German Research Foundation. Dr. Divito reported receiving personal fees from Adaptimmune and MEI Pharma and a provisional patent issued from Brigham and Women’s Hospital outside the submitted work. Neither Dr. Saardi nor Dr. Ko reported having relevant disclosures.
demonstrated.
“Prompt identification and discontinuation of a culprit drug is critical to improving patient outcomes and preventing recurrence,” researchers led by Sherrie J. Divito, MD, PhD, of the department of dermatology at Brigham and Women’s Hospital, Boston, wrote in the study, which was published online in JAMA Dermatology. “Identification is difficult because there is no laboratory test or other criterion standard (in the absence of rechallenge) to identify a culprit drug, and patients take on average six medications at the time of their reaction. Consequently, many patients may be labeled as allergic to multiple agents.”
Although failing to identify the culprit drug can have severe consequences, they added, “overlabeling” (labeling a patient as allergic to a drug or drugs that they can tolerate safely) “is not insignificant.” As a result of overlabeling, “the patient may receive a less efficacious, more toxic, and/or more expensive agent than necessary, and in some cases may be left without treatment for their underlying disease.”
To evaluate the outcomes of patients’ allergy lists, current approaches to identify culprit drugs such as the Algorithm for Drug Causality for Epidermal Necrolysis (ALDEN), which was published in 2010, and potential methods of improving culprit drug identification, the researchers performed a retrospective cohort study of 48 patients at Brigham and Women’s Hospital and Massachusetts General Hospital, with clinically and histologically confirmed cases of SJS/TEN between January 2000 and July 2018. Of the 48 patients, 26 had SJS/TEN overlap and 22 had TEN. Their median age at diagnosis was 40 years; 60.4% were female; and 52.1% were white, 12.5% were Black, 10.4% were Hispanic, and 8.3% were Asian. They took a median of 6.5 drugs in the 3 months prior to disease onset.
The researchers observed that all patients had at least one drug labeled as an allergy. A single culprit drug was labeled in 17 cases, but physicians communicated certainty in only 7 of those cases. Among all 48 patients, 104 drugs were labeled as allergies.
To identify a culprit drug, physicians appeared to mainly rely on two factors: drug notoriety and timing of exposure, compared with the onset of SJS/TEN. “Identifying high-risk medications seemed heuristic, with one or more drugs in question noted in the record as a common culprit without reference to published or vetted data regarding risk,” the researchers wrote. “Regarding timing, drug charts when present in medical records were incomplete, as they focused predominantly on high-notoriety drugs.”
In other findings, ALDEN scoring was discordant with physician-labeled lists in 28 cases. It labeled an additional 9 drugs missed by physicians and scored 43 drugs labeled as allergens by physicians as “unlikely.” The researchers also reported that 20 cases could have potentially benefited from human leukocyte antigen testing.
Their results “underscore the need for a laboratory test to identify culprit drugs,” but without such a test, “a systematic unbiased approach, such as ALDEN or the RegiSCAR database, with possibly HLA testing, should be considered to ensure the true culprit drug is not missed and exonerate as many nonculprit drugs as possible,” Dr. Divito and colleagues concluded.
They acknowledged certain limitations of the analysis, including its retrospective design and that many cases predated research advances in the topic area that took place during the 18-year study period.
Karl Saardi, MD, director of the inpatient dermatology service at George Washington University Hospital, Washington, who was asked to comment on the study, said that the findings “are consistent with clinical practice in that drug causality is usually determined by ‘gestalt’ rather than objective tools like the ALDEN algorithm.”
“The main limitation is the small size, which suggests the study sites are low-volume centers for SJS/TEN. The fact that the ALDEN score wasn’t developed until 2010 means that all the cases included prior to 2010 would not have applied the ALDEN algorithm, so I think the metric about how infrequently ALDEN was applied is not very meaningful.”
Still, he said that he was “surprised” by the number of medications that were added as allergies based on clinical impression, “and I’m glad this article does cast some light on the issue. In my experience, beta-lactam antibiotics are often – incorrectly – deemed to be the cause of SJS/TEN when further review of the patient’s medication history clearly shows they have tolerated these drugs multiple times in the past.”
Since 2000, he added, “our understanding of SJS/TEN has grown substantially including the identification of MIRM [mycoplasma-induced rash and mucositis]/RIME [reactive infections mucocutaneous eruptions] and GBFDE [generalized bullous fixed drug eruption] as mimickers.”
Christine Ko, MD, professor of dermatology and pathology at Yale University, New Haven, Conn., who was also asked to comment on the study, agreed that a limitation of the study is that it partially preceded development of the unbiased approaches to determining the cause of a medication reaction, such as the ALDEN system. “A strength of this study is the examination of heuristics in dermatology and how they relate to patient safety,” she added.
The study was funded by grants from the National Institutes of Health, a Dermatology Foundation Diversity Research Supplement Award, and by the German Research Foundation. Dr. Divito reported receiving personal fees from Adaptimmune and MEI Pharma and a provisional patent issued from Brigham and Women’s Hospital outside the submitted work. Neither Dr. Saardi nor Dr. Ko reported having relevant disclosures.
FROM JAMA DERMATOLOGY
Fade haircut or something else?
The areas of hair loss and different length hairs in a patient with otherwise normal-density hair was consistent with a diagnosis of trichotillomania. The physician initially thought the patient had a “fade” hairstyle, but then observed him twirling his hair. Further queries confirmed a history of hair pulling (trichotillomania) and ingesting the hair (trichophagia).
In adulthood, trichotillomania affects females about 4 times more than males, although in childhood, the sex distribution appears about equal.1 The typical age of onset is between 10 to 13 years. Several mental health conditions are associated with trichotillomania, such as major depressive disorder, anxiety disorders, and substance use disorder, with trichotillomania generally preceding these comorbid disorders. It is important to rule out obsessive compulsive disorder and consider body dysmorphic disorder when making a diagnosis of trichotillomania.1
It is common to see androgenetic alopecia precipitated by hormone therapy in FTM individuals. This would usually cause thinning of the hair rather than the irregular hair lengths and pattern seen in this patient. Tinea capitis is also part of the differential diagnosis in a case such as this. It can be diagnosed by potassium hydroxide (KOH) preparations in the setting of friable and broken hair shafts (and sometimes erythema and inflammation).
Patients with trichotillomania may have hair with blunt or tapered ends; hair may also look like uneven stubble.2 The scalp is the most commonly involved site (72.8%), followed by eyebrows (50.7%), and the pubic region (50.7%).1 Useful diagnostic clues include an unusual shape of the affected area, accessible location, and a changing pattern from visit to visit.2 If trichotillomania is suspected, it might be useful to ask about hair-playing activities, such as twirling or twisting, or playing with the ends of eyelashes or eyebrows.2
Unwanted medical consequences of trichotillomania include skin damage (if sharp instruments are used for hair pulling), and the formation of gastrointestinal trichobezoars (hairballs) if trichophagia is present. Trichobezoars that cause bowel obstructions may need surgical intervention.1
Behavioral therapy is the first-line treatment for trichotillomania in all age groups.1,3 Treating any coexisting mental health disorders is also essential. There are currently no FDA-approved medications for treatment; however, there is evidence that N-acetylcysteine may be useful in treating adults with trichotillomania and other repetitive skin disorders.3 Antipsychotics and cannabinoid agonists also may be beneficial.1
This patient was continued on his current lithium, naltrexone, and bupropion regimen (rather than adding additional psychiatric medicines) as he was doing better than his previous baseline. He was advised to continue with his cognitive behavioral therapy. His hormone replacement therapy also was continued because it was not thought to be contributory. He was provided with education about symptoms of trichobezoar and red flag symptoms (eg, worsening nausea, vomiting, abdominal pain) that would necessitate emergency follow-up. His GERD symptoms were thought not to be related to his trichophagia. He was scheduled to follow up for routine primary care in 6 months.
Photo courtesy of Daniel Stulberg, MD. Text courtesy of Sarasawati Keeni, MD, and Daniel Stulberg, MD, FAAFP, Department of Family and Community Medicine, Western Michigan University Homer Stryker, MD School of Medicine, Kalamazoo.
1. Grant JE and Chamberlain SR. Trichotillomania. Am J Psychiatry. 2016;173:868-874. doi: 10.1176/appi.ajp.2016.15111432
2. Sah DE, Koo J, Price VH. Trichotillomania. Dermatol Ther. 2008;21:13-21. doi: 10.1111/j.1529-8019.2008.00165.x
3. Henkel ED, Jaquez SD, Diaz LZ. Pediatric trichotillomania: review of management. Pediatr Dermatol. 2019;36:803-807. doi: 10.1111/pde.13954
The areas of hair loss and different length hairs in a patient with otherwise normal-density hair was consistent with a diagnosis of trichotillomania. The physician initially thought the patient had a “fade” hairstyle, but then observed him twirling his hair. Further queries confirmed a history of hair pulling (trichotillomania) and ingesting the hair (trichophagia).
In adulthood, trichotillomania affects females about 4 times more than males, although in childhood, the sex distribution appears about equal.1 The typical age of onset is between 10 to 13 years. Several mental health conditions are associated with trichotillomania, such as major depressive disorder, anxiety disorders, and substance use disorder, with trichotillomania generally preceding these comorbid disorders. It is important to rule out obsessive compulsive disorder and consider body dysmorphic disorder when making a diagnosis of trichotillomania.1
It is common to see androgenetic alopecia precipitated by hormone therapy in FTM individuals. This would usually cause thinning of the hair rather than the irregular hair lengths and pattern seen in this patient. Tinea capitis is also part of the differential diagnosis in a case such as this. It can be diagnosed by potassium hydroxide (KOH) preparations in the setting of friable and broken hair shafts (and sometimes erythema and inflammation).
Patients with trichotillomania may have hair with blunt or tapered ends; hair may also look like uneven stubble.2 The scalp is the most commonly involved site (72.8%), followed by eyebrows (50.7%), and the pubic region (50.7%).1 Useful diagnostic clues include an unusual shape of the affected area, accessible location, and a changing pattern from visit to visit.2 If trichotillomania is suspected, it might be useful to ask about hair-playing activities, such as twirling or twisting, or playing with the ends of eyelashes or eyebrows.2
Unwanted medical consequences of trichotillomania include skin damage (if sharp instruments are used for hair pulling), and the formation of gastrointestinal trichobezoars (hairballs) if trichophagia is present. Trichobezoars that cause bowel obstructions may need surgical intervention.1
Behavioral therapy is the first-line treatment for trichotillomania in all age groups.1,3 Treating any coexisting mental health disorders is also essential. There are currently no FDA-approved medications for treatment; however, there is evidence that N-acetylcysteine may be useful in treating adults with trichotillomania and other repetitive skin disorders.3 Antipsychotics and cannabinoid agonists also may be beneficial.1
This patient was continued on his current lithium, naltrexone, and bupropion regimen (rather than adding additional psychiatric medicines) as he was doing better than his previous baseline. He was advised to continue with his cognitive behavioral therapy. His hormone replacement therapy also was continued because it was not thought to be contributory. He was provided with education about symptoms of trichobezoar and red flag symptoms (eg, worsening nausea, vomiting, abdominal pain) that would necessitate emergency follow-up. His GERD symptoms were thought not to be related to his trichophagia. He was scheduled to follow up for routine primary care in 6 months.
Photo courtesy of Daniel Stulberg, MD. Text courtesy of Sarasawati Keeni, MD, and Daniel Stulberg, MD, FAAFP, Department of Family and Community Medicine, Western Michigan University Homer Stryker, MD School of Medicine, Kalamazoo.
The areas of hair loss and different length hairs in a patient with otherwise normal-density hair was consistent with a diagnosis of trichotillomania. The physician initially thought the patient had a “fade” hairstyle, but then observed him twirling his hair. Further queries confirmed a history of hair pulling (trichotillomania) and ingesting the hair (trichophagia).
In adulthood, trichotillomania affects females about 4 times more than males, although in childhood, the sex distribution appears about equal.1 The typical age of onset is between 10 to 13 years. Several mental health conditions are associated with trichotillomania, such as major depressive disorder, anxiety disorders, and substance use disorder, with trichotillomania generally preceding these comorbid disorders. It is important to rule out obsessive compulsive disorder and consider body dysmorphic disorder when making a diagnosis of trichotillomania.1
It is common to see androgenetic alopecia precipitated by hormone therapy in FTM individuals. This would usually cause thinning of the hair rather than the irregular hair lengths and pattern seen in this patient. Tinea capitis is also part of the differential diagnosis in a case such as this. It can be diagnosed by potassium hydroxide (KOH) preparations in the setting of friable and broken hair shafts (and sometimes erythema and inflammation).
Patients with trichotillomania may have hair with blunt or tapered ends; hair may also look like uneven stubble.2 The scalp is the most commonly involved site (72.8%), followed by eyebrows (50.7%), and the pubic region (50.7%).1 Useful diagnostic clues include an unusual shape of the affected area, accessible location, and a changing pattern from visit to visit.2 If trichotillomania is suspected, it might be useful to ask about hair-playing activities, such as twirling or twisting, or playing with the ends of eyelashes or eyebrows.2
Unwanted medical consequences of trichotillomania include skin damage (if sharp instruments are used for hair pulling), and the formation of gastrointestinal trichobezoars (hairballs) if trichophagia is present. Trichobezoars that cause bowel obstructions may need surgical intervention.1
Behavioral therapy is the first-line treatment for trichotillomania in all age groups.1,3 Treating any coexisting mental health disorders is also essential. There are currently no FDA-approved medications for treatment; however, there is evidence that N-acetylcysteine may be useful in treating adults with trichotillomania and other repetitive skin disorders.3 Antipsychotics and cannabinoid agonists also may be beneficial.1
This patient was continued on his current lithium, naltrexone, and bupropion regimen (rather than adding additional psychiatric medicines) as he was doing better than his previous baseline. He was advised to continue with his cognitive behavioral therapy. His hormone replacement therapy also was continued because it was not thought to be contributory. He was provided with education about symptoms of trichobezoar and red flag symptoms (eg, worsening nausea, vomiting, abdominal pain) that would necessitate emergency follow-up. His GERD symptoms were thought not to be related to his trichophagia. He was scheduled to follow up for routine primary care in 6 months.
Photo courtesy of Daniel Stulberg, MD. Text courtesy of Sarasawati Keeni, MD, and Daniel Stulberg, MD, FAAFP, Department of Family and Community Medicine, Western Michigan University Homer Stryker, MD School of Medicine, Kalamazoo.
1. Grant JE and Chamberlain SR. Trichotillomania. Am J Psychiatry. 2016;173:868-874. doi: 10.1176/appi.ajp.2016.15111432
2. Sah DE, Koo J, Price VH. Trichotillomania. Dermatol Ther. 2008;21:13-21. doi: 10.1111/j.1529-8019.2008.00165.x
3. Henkel ED, Jaquez SD, Diaz LZ. Pediatric trichotillomania: review of management. Pediatr Dermatol. 2019;36:803-807. doi: 10.1111/pde.13954
1. Grant JE and Chamberlain SR. Trichotillomania. Am J Psychiatry. 2016;173:868-874. doi: 10.1176/appi.ajp.2016.15111432
2. Sah DE, Koo J, Price VH. Trichotillomania. Dermatol Ther. 2008;21:13-21. doi: 10.1111/j.1529-8019.2008.00165.x
3. Henkel ED, Jaquez SD, Diaz LZ. Pediatric trichotillomania: review of management. Pediatr Dermatol. 2019;36:803-807. doi: 10.1111/pde.13954
Imaging techniques will revolutionize cancer detection, expert predicts
PHOENIX –
In a lecture during a multispecialty roundup of cutting-edge energy-based device applications at the annual conference of the American Society for Laser Medicine and Surgery, Dr. Barton, a biomedical engineer who directs the BIO5 Institute at the University of Arizona, Tucson, said that while no current modality exists to enable physicians in dermatology and other specialties to view internal structures throughout the entire body with cellular resolution, refining existing technologies is a good way to start.
In 2011, renowned cancer researchers Douglas Hanahan, PhD, and Robert A. Weinberg, PhD, proposed six hallmarks of cancer, which include sustaining proliferative signaling, evading growth suppressors, resisting cell death, enabling replicative immortality, inducing angiogenesis, and activating invasion and metastasis. Each hallmark poses unique imaging challenges. For example, enabling replicative immortality “means that the cell nuclei change size and shape; they change their position,” said Dr. Barton, who is also professor of biomedical engineering and optical sciences at the university. “If we want to see that, we’re going to need an imaging modality that’s subcellular in resolution.”
Similarly, if clinicians want to view how proliferative signaling is changing, “that means being able to visualize the cell surface receptors; those are even smaller to actually visualize,” she said. “But we have technologies where we can target those receptors with fluorophores. And then we can look at large areas very quickly.” Meanwhile, the ability of cancer cells to resist cell death and evade growth suppressors often results in thickening of epithelium throughout the body. “So, if we can measure the thickness of the epithelium, we can see that there’s something wrong with that tissue,” she said.
As for cancer’s propensity for invasion and metastasis, “here, we’re looking at how the collagen structure [between the cells] has changed and whether there’s layer breakdown or not. Optical imaging can detect cancer. However, high resolution optical techniques can only image about 1 mm deep, so unless you’re looking at the skin or the eye, you’re going to have to develop an endoscope to be able to view these hallmarks.”
OCT images the tissue microstructure, generally in a resolution of 2-20 microns, at a depth of 1-2 mm, and it measures reflected light. When possible, Dr. Barton combines OCT with laser-induced fluorescence for enhanced accuracy of detection of cancer. Induced fluorescence senses molecular information with the natural fluorophores in the body or with targeted exogenous agents. Then there’s multiphoton microscopy, an advanced imaging technique that enables clinicians to view cellular and subcellular events within living tissue. Early models of this technology “took up entire benches” in physics labs, Dr. Barton said, but she and other investigators are designing smaller devices for use in clinics. “This is exciting, because not only do we [view] subcellular structure with this modality, but it can also be highly sensitive to collagen structure,” she said.
Ovarian cancer model
In a model of ovarian cancer, she and colleagues externalized the ovaries of a mouse, imaged the organs, put them back in, and reassessed them at 8 weeks. “This model develops cancer very quickly,” said Dr. Barton, who once worked for McDonnell Douglas on the Space Station program. At 8 weeks, using fluorescence and targeted agents with a tabletop multiphoton microscopy system, they observed that the proliferation signals of cancer had begun. “So, with an agent targeted to the folate receptor or to other receptors that are implicated in cancer development, we can see that ovaries and fallopian tubes are lighting up,” she said.
With proof of concept established with the mouse study, she and other researchers are drawing from technological advances to create tiny laser systems for use in the clinic to image a variety of structures in the human body. Optics advances include bulk optics and all-fiber designs where engineers can create an imaging probe that’s only 125 microns in diameter, “or maybe even as small as 70 microns in diameter,” she said. “We can do fabrications on the tips of endoscopes to redirect the light and focus it. We can also do 3-D printing and spiral scanning to create miniature devices to make new advances. That means that instead of just white light imaging of the colon or the lung like we have had in the past, we can start moving into smaller structures, such as the eustachian tube, the fallopian tube, the bile ducts, or making miniature devices for brain biopsies, lung biopsies, and maybe being able to get into bronchioles and arterioles.”
According to Dr. Barton, prior research has demonstrated that cerebral vasculature can be imaged with a catheter 400 microns in diameter, the spaces in the lungs can be imaged with a needle that is 310 microns in diameter, and the inner structures of the eustachian tube can be viewed with an endoscope 1 mm in diameter.
She and her colleagues are developing an OCT/fluorescence imaging falloposcope that is 0.8 mm in diameter, flexible, and steerable, as a tool for early detection of ovarian cancer in humans. “It’s now known that most ovarian cancer starts in the fallopian tubes,” Dr. Barton said. “It’s metastatic disease when those cells break off from the fallopian tubes and go to the ovaries. We wanted to create an imaging system where we created a fiber bundle that we could navigate with white light and with fluorescence so that we can see these early stages of cancer [and] how they fluoresce differently. We also wanted to have an OCT system so that we could image through the wall of the fallopian tube and look for that layer thickening and other precursors to ovarian cancer.”
To date, in vivo testing in healthy women has demonstrated that the miniature endoscope is able to reach the fallopian tubes through the natural orifice of the vagina and uterus. “That is pretty exciting,” she said. “The images may not be of the highest quality, but we are advancing.”
Dr. Barton reported having no relevant financial disclosures.
PHOENIX –
In a lecture during a multispecialty roundup of cutting-edge energy-based device applications at the annual conference of the American Society for Laser Medicine and Surgery, Dr. Barton, a biomedical engineer who directs the BIO5 Institute at the University of Arizona, Tucson, said that while no current modality exists to enable physicians in dermatology and other specialties to view internal structures throughout the entire body with cellular resolution, refining existing technologies is a good way to start.
In 2011, renowned cancer researchers Douglas Hanahan, PhD, and Robert A. Weinberg, PhD, proposed six hallmarks of cancer, which include sustaining proliferative signaling, evading growth suppressors, resisting cell death, enabling replicative immortality, inducing angiogenesis, and activating invasion and metastasis. Each hallmark poses unique imaging challenges. For example, enabling replicative immortality “means that the cell nuclei change size and shape; they change their position,” said Dr. Barton, who is also professor of biomedical engineering and optical sciences at the university. “If we want to see that, we’re going to need an imaging modality that’s subcellular in resolution.”
Similarly, if clinicians want to view how proliferative signaling is changing, “that means being able to visualize the cell surface receptors; those are even smaller to actually visualize,” she said. “But we have technologies where we can target those receptors with fluorophores. And then we can look at large areas very quickly.” Meanwhile, the ability of cancer cells to resist cell death and evade growth suppressors often results in thickening of epithelium throughout the body. “So, if we can measure the thickness of the epithelium, we can see that there’s something wrong with that tissue,” she said.
As for cancer’s propensity for invasion and metastasis, “here, we’re looking at how the collagen structure [between the cells] has changed and whether there’s layer breakdown or not. Optical imaging can detect cancer. However, high resolution optical techniques can only image about 1 mm deep, so unless you’re looking at the skin or the eye, you’re going to have to develop an endoscope to be able to view these hallmarks.”
OCT images the tissue microstructure, generally in a resolution of 2-20 microns, at a depth of 1-2 mm, and it measures reflected light. When possible, Dr. Barton combines OCT with laser-induced fluorescence for enhanced accuracy of detection of cancer. Induced fluorescence senses molecular information with the natural fluorophores in the body or with targeted exogenous agents. Then there’s multiphoton microscopy, an advanced imaging technique that enables clinicians to view cellular and subcellular events within living tissue. Early models of this technology “took up entire benches” in physics labs, Dr. Barton said, but she and other investigators are designing smaller devices for use in clinics. “This is exciting, because not only do we [view] subcellular structure with this modality, but it can also be highly sensitive to collagen structure,” she said.
Ovarian cancer model
In a model of ovarian cancer, she and colleagues externalized the ovaries of a mouse, imaged the organs, put them back in, and reassessed them at 8 weeks. “This model develops cancer very quickly,” said Dr. Barton, who once worked for McDonnell Douglas on the Space Station program. At 8 weeks, using fluorescence and targeted agents with a tabletop multiphoton microscopy system, they observed that the proliferation signals of cancer had begun. “So, with an agent targeted to the folate receptor or to other receptors that are implicated in cancer development, we can see that ovaries and fallopian tubes are lighting up,” she said.
With proof of concept established with the mouse study, she and other researchers are drawing from technological advances to create tiny laser systems for use in the clinic to image a variety of structures in the human body. Optics advances include bulk optics and all-fiber designs where engineers can create an imaging probe that’s only 125 microns in diameter, “or maybe even as small as 70 microns in diameter,” she said. “We can do fabrications on the tips of endoscopes to redirect the light and focus it. We can also do 3-D printing and spiral scanning to create miniature devices to make new advances. That means that instead of just white light imaging of the colon or the lung like we have had in the past, we can start moving into smaller structures, such as the eustachian tube, the fallopian tube, the bile ducts, or making miniature devices for brain biopsies, lung biopsies, and maybe being able to get into bronchioles and arterioles.”
According to Dr. Barton, prior research has demonstrated that cerebral vasculature can be imaged with a catheter 400 microns in diameter, the spaces in the lungs can be imaged with a needle that is 310 microns in diameter, and the inner structures of the eustachian tube can be viewed with an endoscope 1 mm in diameter.
She and her colleagues are developing an OCT/fluorescence imaging falloposcope that is 0.8 mm in diameter, flexible, and steerable, as a tool for early detection of ovarian cancer in humans. “It’s now known that most ovarian cancer starts in the fallopian tubes,” Dr. Barton said. “It’s metastatic disease when those cells break off from the fallopian tubes and go to the ovaries. We wanted to create an imaging system where we created a fiber bundle that we could navigate with white light and with fluorescence so that we can see these early stages of cancer [and] how they fluoresce differently. We also wanted to have an OCT system so that we could image through the wall of the fallopian tube and look for that layer thickening and other precursors to ovarian cancer.”
To date, in vivo testing in healthy women has demonstrated that the miniature endoscope is able to reach the fallopian tubes through the natural orifice of the vagina and uterus. “That is pretty exciting,” she said. “The images may not be of the highest quality, but we are advancing.”
Dr. Barton reported having no relevant financial disclosures.
PHOENIX –
In a lecture during a multispecialty roundup of cutting-edge energy-based device applications at the annual conference of the American Society for Laser Medicine and Surgery, Dr. Barton, a biomedical engineer who directs the BIO5 Institute at the University of Arizona, Tucson, said that while no current modality exists to enable physicians in dermatology and other specialties to view internal structures throughout the entire body with cellular resolution, refining existing technologies is a good way to start.
In 2011, renowned cancer researchers Douglas Hanahan, PhD, and Robert A. Weinberg, PhD, proposed six hallmarks of cancer, which include sustaining proliferative signaling, evading growth suppressors, resisting cell death, enabling replicative immortality, inducing angiogenesis, and activating invasion and metastasis. Each hallmark poses unique imaging challenges. For example, enabling replicative immortality “means that the cell nuclei change size and shape; they change their position,” said Dr. Barton, who is also professor of biomedical engineering and optical sciences at the university. “If we want to see that, we’re going to need an imaging modality that’s subcellular in resolution.”
Similarly, if clinicians want to view how proliferative signaling is changing, “that means being able to visualize the cell surface receptors; those are even smaller to actually visualize,” she said. “But we have technologies where we can target those receptors with fluorophores. And then we can look at large areas very quickly.” Meanwhile, the ability of cancer cells to resist cell death and evade growth suppressors often results in thickening of epithelium throughout the body. “So, if we can measure the thickness of the epithelium, we can see that there’s something wrong with that tissue,” she said.
As for cancer’s propensity for invasion and metastasis, “here, we’re looking at how the collagen structure [between the cells] has changed and whether there’s layer breakdown or not. Optical imaging can detect cancer. However, high resolution optical techniques can only image about 1 mm deep, so unless you’re looking at the skin or the eye, you’re going to have to develop an endoscope to be able to view these hallmarks.”
OCT images the tissue microstructure, generally in a resolution of 2-20 microns, at a depth of 1-2 mm, and it measures reflected light. When possible, Dr. Barton combines OCT with laser-induced fluorescence for enhanced accuracy of detection of cancer. Induced fluorescence senses molecular information with the natural fluorophores in the body or with targeted exogenous agents. Then there’s multiphoton microscopy, an advanced imaging technique that enables clinicians to view cellular and subcellular events within living tissue. Early models of this technology “took up entire benches” in physics labs, Dr. Barton said, but she and other investigators are designing smaller devices for use in clinics. “This is exciting, because not only do we [view] subcellular structure with this modality, but it can also be highly sensitive to collagen structure,” she said.
Ovarian cancer model
In a model of ovarian cancer, she and colleagues externalized the ovaries of a mouse, imaged the organs, put them back in, and reassessed them at 8 weeks. “This model develops cancer very quickly,” said Dr. Barton, who once worked for McDonnell Douglas on the Space Station program. At 8 weeks, using fluorescence and targeted agents with a tabletop multiphoton microscopy system, they observed that the proliferation signals of cancer had begun. “So, with an agent targeted to the folate receptor or to other receptors that are implicated in cancer development, we can see that ovaries and fallopian tubes are lighting up,” she said.
With proof of concept established with the mouse study, she and other researchers are drawing from technological advances to create tiny laser systems for use in the clinic to image a variety of structures in the human body. Optics advances include bulk optics and all-fiber designs where engineers can create an imaging probe that’s only 125 microns in diameter, “or maybe even as small as 70 microns in diameter,” she said. “We can do fabrications on the tips of endoscopes to redirect the light and focus it. We can also do 3-D printing and spiral scanning to create miniature devices to make new advances. That means that instead of just white light imaging of the colon or the lung like we have had in the past, we can start moving into smaller structures, such as the eustachian tube, the fallopian tube, the bile ducts, or making miniature devices for brain biopsies, lung biopsies, and maybe being able to get into bronchioles and arterioles.”
According to Dr. Barton, prior research has demonstrated that cerebral vasculature can be imaged with a catheter 400 microns in diameter, the spaces in the lungs can be imaged with a needle that is 310 microns in diameter, and the inner structures of the eustachian tube can be viewed with an endoscope 1 mm in diameter.
She and her colleagues are developing an OCT/fluorescence imaging falloposcope that is 0.8 mm in diameter, flexible, and steerable, as a tool for early detection of ovarian cancer in humans. “It’s now known that most ovarian cancer starts in the fallopian tubes,” Dr. Barton said. “It’s metastatic disease when those cells break off from the fallopian tubes and go to the ovaries. We wanted to create an imaging system where we created a fiber bundle that we could navigate with white light and with fluorescence so that we can see these early stages of cancer [and] how they fluoresce differently. We also wanted to have an OCT system so that we could image through the wall of the fallopian tube and look for that layer thickening and other precursors to ovarian cancer.”
To date, in vivo testing in healthy women has demonstrated that the miniature endoscope is able to reach the fallopian tubes through the natural orifice of the vagina and uterus. “That is pretty exciting,” she said. “The images may not be of the highest quality, but we are advancing.”
Dr. Barton reported having no relevant financial disclosures.
AT ASLMS 2023
FDA approves ritlecitinib for ages 12 and up for alopecia areata
Taken as a once-daily pill, ritlecitinib is a dual inhibitor of the TEC family of tyrosine kinases and of Janus kinase 3 (JAK3). The recommended dose of ritlecitinib, which will be marketed as Litfulo, is 50 mg once a day, according to the statement announcing the approval from Pfizer.
It is the second JAK inhibitor approved for treating alopecia areata, following approval of baricitinib (Olumiant) in June 2022 for AA in adults. Ritlecitinib is the first JAK inhibitor approved for children ages 12 and older with AA.
The European Medicines Agency has also accepted the Marketing Authorization Application for ritlecitinib in the same population and a decision is expected in the fourth quarter of this year.
Approval based on ALLEGRO trials
Approval was based on previously announced results from trials, including the phase 2b/3 ALLEGRO study of ritlecitinib in 718 patients aged 12 years and older with alopecia areata, with 50% of more scalp hair loss, as measured by the Severity of Alopecia Tool (SALT), including patients with alopecia totalis (complete scalp hair loss) and alopecia universalis (complete scalp, face, and body hair loss).
Patients in the trial were experiencing a current episode of alopecia areata that had lasted between 6 months and 10 years. They were randomized to receive once-daily ritlecitinib at doses of 30 mg or 50 mg (with or without 1 month of initial treatment with once-daily ritlecitinib 200 mg), ritlecitinib 10 mg, or placebo.
Statistically significantly higher proportions of patients treated with ritlecitinib 30 mg and 50 mg (with or without the loading dose) had 80% or more scalp hair coverage, as measured by a SALT score of 20 or less after 6 months of treatment versus placebo. After 6 months of treatment, among those on the 50-mg dose, 23% had achieved a SALT score of 20 or less, compared with 2% of those on placebo. The results were published in The Lancet.
According to the company release, efficacy and safety of ritlecitinib was consistent between those ages 12-17 and adults, and the most common adverse events reported in the study, in at least 4% of patients treated with ritlecitinib, were headache (10.8%), diarrhea (10%), acne (6.2%), rash (5.4%), and urticaria (4.6%).
Ritlecitinib labeling includes the boxed warning about the risk for serious infections, mortality, malignancy, major adverse cardiovascular events, and thrombosis, which is included in the labels for other JAK inhibitors.
Ritlecitinib evaluated for other diseases
In addition to alopecia areata, ritlecitinib has shown efficacy and acceptable safety in treating ulcerative colitis and is being evaluated for treating vitiligo, Crohn’s disease, and rheumatoid arthritis.
In the statement, the company says that ritlecitinib will be available “in the coming weeks.” The manufacturer says it also has completed regulatory submissions for ritlecitinib in the United Kingdom, China, and Japan, and expects decisions this year.
Alopecia areata affects about 6.8 million people in the United States and 147 million globally.
In a statement, Nicole Friedland, president and CEO of the National Alopecia Areata Foundation, said that NAAF “is thrilled to have a second FDA-approved treatment for alopecia areata, which is the first approved for adolescents.”
A version of this article first appeared on Medscape.com.
Taken as a once-daily pill, ritlecitinib is a dual inhibitor of the TEC family of tyrosine kinases and of Janus kinase 3 (JAK3). The recommended dose of ritlecitinib, which will be marketed as Litfulo, is 50 mg once a day, according to the statement announcing the approval from Pfizer.
It is the second JAK inhibitor approved for treating alopecia areata, following approval of baricitinib (Olumiant) in June 2022 for AA in adults. Ritlecitinib is the first JAK inhibitor approved for children ages 12 and older with AA.
The European Medicines Agency has also accepted the Marketing Authorization Application for ritlecitinib in the same population and a decision is expected in the fourth quarter of this year.
Approval based on ALLEGRO trials
Approval was based on previously announced results from trials, including the phase 2b/3 ALLEGRO study of ritlecitinib in 718 patients aged 12 years and older with alopecia areata, with 50% of more scalp hair loss, as measured by the Severity of Alopecia Tool (SALT), including patients with alopecia totalis (complete scalp hair loss) and alopecia universalis (complete scalp, face, and body hair loss).
Patients in the trial were experiencing a current episode of alopecia areata that had lasted between 6 months and 10 years. They were randomized to receive once-daily ritlecitinib at doses of 30 mg or 50 mg (with or without 1 month of initial treatment with once-daily ritlecitinib 200 mg), ritlecitinib 10 mg, or placebo.
Statistically significantly higher proportions of patients treated with ritlecitinib 30 mg and 50 mg (with or without the loading dose) had 80% or more scalp hair coverage, as measured by a SALT score of 20 or less after 6 months of treatment versus placebo. After 6 months of treatment, among those on the 50-mg dose, 23% had achieved a SALT score of 20 or less, compared with 2% of those on placebo. The results were published in The Lancet.
According to the company release, efficacy and safety of ritlecitinib was consistent between those ages 12-17 and adults, and the most common adverse events reported in the study, in at least 4% of patients treated with ritlecitinib, were headache (10.8%), diarrhea (10%), acne (6.2%), rash (5.4%), and urticaria (4.6%).
Ritlecitinib labeling includes the boxed warning about the risk for serious infections, mortality, malignancy, major adverse cardiovascular events, and thrombosis, which is included in the labels for other JAK inhibitors.
Ritlecitinib evaluated for other diseases
In addition to alopecia areata, ritlecitinib has shown efficacy and acceptable safety in treating ulcerative colitis and is being evaluated for treating vitiligo, Crohn’s disease, and rheumatoid arthritis.
In the statement, the company says that ritlecitinib will be available “in the coming weeks.” The manufacturer says it also has completed regulatory submissions for ritlecitinib in the United Kingdom, China, and Japan, and expects decisions this year.
Alopecia areata affects about 6.8 million people in the United States and 147 million globally.
In a statement, Nicole Friedland, president and CEO of the National Alopecia Areata Foundation, said that NAAF “is thrilled to have a second FDA-approved treatment for alopecia areata, which is the first approved for adolescents.”
A version of this article first appeared on Medscape.com.
Taken as a once-daily pill, ritlecitinib is a dual inhibitor of the TEC family of tyrosine kinases and of Janus kinase 3 (JAK3). The recommended dose of ritlecitinib, which will be marketed as Litfulo, is 50 mg once a day, according to the statement announcing the approval from Pfizer.
It is the second JAK inhibitor approved for treating alopecia areata, following approval of baricitinib (Olumiant) in June 2022 for AA in adults. Ritlecitinib is the first JAK inhibitor approved for children ages 12 and older with AA.
The European Medicines Agency has also accepted the Marketing Authorization Application for ritlecitinib in the same population and a decision is expected in the fourth quarter of this year.
Approval based on ALLEGRO trials
Approval was based on previously announced results from trials, including the phase 2b/3 ALLEGRO study of ritlecitinib in 718 patients aged 12 years and older with alopecia areata, with 50% of more scalp hair loss, as measured by the Severity of Alopecia Tool (SALT), including patients with alopecia totalis (complete scalp hair loss) and alopecia universalis (complete scalp, face, and body hair loss).
Patients in the trial were experiencing a current episode of alopecia areata that had lasted between 6 months and 10 years. They were randomized to receive once-daily ritlecitinib at doses of 30 mg or 50 mg (with or without 1 month of initial treatment with once-daily ritlecitinib 200 mg), ritlecitinib 10 mg, or placebo.
Statistically significantly higher proportions of patients treated with ritlecitinib 30 mg and 50 mg (with or without the loading dose) had 80% or more scalp hair coverage, as measured by a SALT score of 20 or less after 6 months of treatment versus placebo. After 6 months of treatment, among those on the 50-mg dose, 23% had achieved a SALT score of 20 or less, compared with 2% of those on placebo. The results were published in The Lancet.
According to the company release, efficacy and safety of ritlecitinib was consistent between those ages 12-17 and adults, and the most common adverse events reported in the study, in at least 4% of patients treated with ritlecitinib, were headache (10.8%), diarrhea (10%), acne (6.2%), rash (5.4%), and urticaria (4.6%).
Ritlecitinib labeling includes the boxed warning about the risk for serious infections, mortality, malignancy, major adverse cardiovascular events, and thrombosis, which is included in the labels for other JAK inhibitors.
Ritlecitinib evaluated for other diseases
In addition to alopecia areata, ritlecitinib has shown efficacy and acceptable safety in treating ulcerative colitis and is being evaluated for treating vitiligo, Crohn’s disease, and rheumatoid arthritis.
In the statement, the company says that ritlecitinib will be available “in the coming weeks.” The manufacturer says it also has completed regulatory submissions for ritlecitinib in the United Kingdom, China, and Japan, and expects decisions this year.
Alopecia areata affects about 6.8 million people in the United States and 147 million globally.
In a statement, Nicole Friedland, president and CEO of the National Alopecia Areata Foundation, said that NAAF “is thrilled to have a second FDA-approved treatment for alopecia areata, which is the first approved for adolescents.”
A version of this article first appeared on Medscape.com.
Study supports new NCCN classification for cutaneous squamous cell carcinoma
, according to new findings.
In addition, regardless of the NCCN risk group, the study found that Mohs surgery or peripheral and deep en face margin assessment (PDEMA) conferred a lower risk of developing LR, DM, and disease-related death.
“Although the NCCN included this new high-risk group in the last iteration of the guidelines, there were no studies that identified whether the high-risk group achieved the goal of identifying riskier tumors,” said senior author Emily Ruiz, MD, MPH, associate physician at the Mohs and Dermatologic Surgery Center at Brigham and Women’s Faulkner Hospital, Boston. “Based on the data in our study, the risk groups did risk stratify tumors and so clinicians can utilize the high-risk group risk factors to identify which tumors may require additional surveillance or treatment.”
The study was published online in JAMA Dermatology.
Most patients with CSCC are successfully treated with Mohs micrographic surgery or wide local excision (WLE) alone, but a subset will experience more severe and aggressive disease. While useful for prognostication, current staging systems do not incorporate patient factors or other high-risk tumor features that influence outcomes, which led to the NCCN reclassifying CSCC into low-, high-, and very high-risk groups. The NCCN guidelines also made a new recommendation that Mohs or PDEMA be the preferred method for tissue processing for high- and very-high-risk tumors, based on this new stratification.
However, these changes to the NCCN guidelines have not been validated. The goal of this study was to compare outcomes in very-high-, high-, and low-risk NCCN groups as well as comparing outcomes of CSCCs stratified by Mohs and WLE.
Dr. Ruiz and colleagues conducted a retrospective cohort study using patient data from two tertiary care academic medical centers. Their analysis included 10,196 tumors from 8,727 patients that were then stratified into low-risk (3,054 tumors [30.0%]), high-risk (6,269 tumors [61.5%]), and very-high-risk (873 tumors [8.6%]) groups.
Tumors in the very-high-risk group were more likely to have high-risk tumor and histologic features, such as large-caliber perineural invasion, large diameter, invasion beyond the subcutaneous fat or bone, poor differentiation, and lymphovascular invasion.
The authors found that, compared with the low-risk group, the high- and very-high-risk groups demonstrated a greater risk of LR (high-risk subhazard ratio, 1.99; P = .007; very-high-risk SHR, 12.66; P < .001); NM (high-risk SHR, 4.26; P = .02; very-high-risk SHR, 62.98; P < .001); DM (high-risk SHR, 2.2 × 107;P < .001; very-high-risk SHR, 6.3 × 108;P < .001); and DSD (high-risk SHR, 4.02; P = .03; very-high-risk SHR, 93.87; P < .001).
Adjusted 5-year cumulative incidence was also significantly higher in very-high- vs. high- and low-risk groups for all endpoints.
They next compared the procedures used to treat the tumors. Compared with WLE, patients treated with Mohs or PDEMA had a lower risk of LR (SHR, 0.65; P = .009), DM (SHR, 0.38; P = .02), and DSD (SHR, 0.55; P = .006).
Mohs and PDEMA have already became preferred surgical modalities for high- and very-high-risk tumors, and Dr. Ruiz pointed out that their analysis was for the entire cohort.
“We did not stratify this by risk group,” she said. “So our results do not change anything clinically at this time, but support prior studies that have found Mohs/PDEMA to have improved outcomes, compared to WLE. Further studies are needed evaluating surgical approach by risk-group.”
However, she emphasized, “our studies further validate prior evidence showing Mohs/PDEMA to have the lowest rates of recurrence and in this study, even disease-related death.”
Approached for an independent comment, Jeffrey M. Farma, MD, codirector of the melanoma and skin cancer program, and interim chair, department of surgical oncology, Fox Chase Cancer Center, Philadelphia, noted that this study supports the new reclassification of CSCC tumors by the NCCN, and confirms that the high-risk and very-high-risk tumors surely have a higher propensity for worse outcomes overall.
“That being said, the notion for type of resection and margin assessment is still an area of controversy in the dermatology, surgical oncology, and pathology community,” said Dr. Farma, who is also on the NCCN panel. “I believe we need further studies to truly understand the role of the type of resection and the pathologic evaluation play in this disease process.”
He also pointed out that it is unclear in this dataset if patients initially had any imaging to evaluate for local or regional metastatic disease. “It would be helpful to have a further understanding of which type of provider was performing the excisions, the type of excision decided upon, and if there was a standardized approach to [decide] which patients had MOHS or PDEMA and what was the surveillance for these patients both with imaging and physical examinations,” said Dr. Farma. “This data also evaluated patients over a long time period where practice patterns have evolved.”
Finally, he noted that the number of local and metastatic events subjectively seems low in this cohort. “We also do not know any information about the initial workup of the patients, patterns of recurrence, and adjuvant or palliative treatment after recurrence,” he added. “It is unclear from this manuscript how the type of resection or pathologic evaluation of margins leads to improved outcomes and further prospective studies are warranted.”
Dr. Ruiz reports reported serving as a coinvestigator and principal investigator for Regeneron Pharmaceuticals and as a coinvestigator for Merck and consulting for Checkpoint Therapeutics, BDO, and Genentech outside the submitted work. Dr. Farma has no disclosures other than the NCCN panel. The study was supported by Harvard Catalyst and the Harvard University Clinical and Translational Science Center and by Harvard University and its affiliated academic health care centers and partially supported by the Melvin Markey Discovery Fund at Cleveland Clinic Foundation.
, according to new findings.
In addition, regardless of the NCCN risk group, the study found that Mohs surgery or peripheral and deep en face margin assessment (PDEMA) conferred a lower risk of developing LR, DM, and disease-related death.
“Although the NCCN included this new high-risk group in the last iteration of the guidelines, there were no studies that identified whether the high-risk group achieved the goal of identifying riskier tumors,” said senior author Emily Ruiz, MD, MPH, associate physician at the Mohs and Dermatologic Surgery Center at Brigham and Women’s Faulkner Hospital, Boston. “Based on the data in our study, the risk groups did risk stratify tumors and so clinicians can utilize the high-risk group risk factors to identify which tumors may require additional surveillance or treatment.”
The study was published online in JAMA Dermatology.
Most patients with CSCC are successfully treated with Mohs micrographic surgery or wide local excision (WLE) alone, but a subset will experience more severe and aggressive disease. While useful for prognostication, current staging systems do not incorporate patient factors or other high-risk tumor features that influence outcomes, which led to the NCCN reclassifying CSCC into low-, high-, and very high-risk groups. The NCCN guidelines also made a new recommendation that Mohs or PDEMA be the preferred method for tissue processing for high- and very-high-risk tumors, based on this new stratification.
However, these changes to the NCCN guidelines have not been validated. The goal of this study was to compare outcomes in very-high-, high-, and low-risk NCCN groups as well as comparing outcomes of CSCCs stratified by Mohs and WLE.
Dr. Ruiz and colleagues conducted a retrospective cohort study using patient data from two tertiary care academic medical centers. Their analysis included 10,196 tumors from 8,727 patients that were then stratified into low-risk (3,054 tumors [30.0%]), high-risk (6,269 tumors [61.5%]), and very-high-risk (873 tumors [8.6%]) groups.
Tumors in the very-high-risk group were more likely to have high-risk tumor and histologic features, such as large-caliber perineural invasion, large diameter, invasion beyond the subcutaneous fat or bone, poor differentiation, and lymphovascular invasion.
The authors found that, compared with the low-risk group, the high- and very-high-risk groups demonstrated a greater risk of LR (high-risk subhazard ratio, 1.99; P = .007; very-high-risk SHR, 12.66; P < .001); NM (high-risk SHR, 4.26; P = .02; very-high-risk SHR, 62.98; P < .001); DM (high-risk SHR, 2.2 × 107;P < .001; very-high-risk SHR, 6.3 × 108;P < .001); and DSD (high-risk SHR, 4.02; P = .03; very-high-risk SHR, 93.87; P < .001).
Adjusted 5-year cumulative incidence was also significantly higher in very-high- vs. high- and low-risk groups for all endpoints.
They next compared the procedures used to treat the tumors. Compared with WLE, patients treated with Mohs or PDEMA had a lower risk of LR (SHR, 0.65; P = .009), DM (SHR, 0.38; P = .02), and DSD (SHR, 0.55; P = .006).
Mohs and PDEMA have already became preferred surgical modalities for high- and very-high-risk tumors, and Dr. Ruiz pointed out that their analysis was for the entire cohort.
“We did not stratify this by risk group,” she said. “So our results do not change anything clinically at this time, but support prior studies that have found Mohs/PDEMA to have improved outcomes, compared to WLE. Further studies are needed evaluating surgical approach by risk-group.”
However, she emphasized, “our studies further validate prior evidence showing Mohs/PDEMA to have the lowest rates of recurrence and in this study, even disease-related death.”
Approached for an independent comment, Jeffrey M. Farma, MD, codirector of the melanoma and skin cancer program, and interim chair, department of surgical oncology, Fox Chase Cancer Center, Philadelphia, noted that this study supports the new reclassification of CSCC tumors by the NCCN, and confirms that the high-risk and very-high-risk tumors surely have a higher propensity for worse outcomes overall.
“That being said, the notion for type of resection and margin assessment is still an area of controversy in the dermatology, surgical oncology, and pathology community,” said Dr. Farma, who is also on the NCCN panel. “I believe we need further studies to truly understand the role of the type of resection and the pathologic evaluation play in this disease process.”
He also pointed out that it is unclear in this dataset if patients initially had any imaging to evaluate for local or regional metastatic disease. “It would be helpful to have a further understanding of which type of provider was performing the excisions, the type of excision decided upon, and if there was a standardized approach to [decide] which patients had MOHS or PDEMA and what was the surveillance for these patients both with imaging and physical examinations,” said Dr. Farma. “This data also evaluated patients over a long time period where practice patterns have evolved.”
Finally, he noted that the number of local and metastatic events subjectively seems low in this cohort. “We also do not know any information about the initial workup of the patients, patterns of recurrence, and adjuvant or palliative treatment after recurrence,” he added. “It is unclear from this manuscript how the type of resection or pathologic evaluation of margins leads to improved outcomes and further prospective studies are warranted.”
Dr. Ruiz reports reported serving as a coinvestigator and principal investigator for Regeneron Pharmaceuticals and as a coinvestigator for Merck and consulting for Checkpoint Therapeutics, BDO, and Genentech outside the submitted work. Dr. Farma has no disclosures other than the NCCN panel. The study was supported by Harvard Catalyst and the Harvard University Clinical and Translational Science Center and by Harvard University and its affiliated academic health care centers and partially supported by the Melvin Markey Discovery Fund at Cleveland Clinic Foundation.
, according to new findings.
In addition, regardless of the NCCN risk group, the study found that Mohs surgery or peripheral and deep en face margin assessment (PDEMA) conferred a lower risk of developing LR, DM, and disease-related death.
“Although the NCCN included this new high-risk group in the last iteration of the guidelines, there were no studies that identified whether the high-risk group achieved the goal of identifying riskier tumors,” said senior author Emily Ruiz, MD, MPH, associate physician at the Mohs and Dermatologic Surgery Center at Brigham and Women’s Faulkner Hospital, Boston. “Based on the data in our study, the risk groups did risk stratify tumors and so clinicians can utilize the high-risk group risk factors to identify which tumors may require additional surveillance or treatment.”
The study was published online in JAMA Dermatology.
Most patients with CSCC are successfully treated with Mohs micrographic surgery or wide local excision (WLE) alone, but a subset will experience more severe and aggressive disease. While useful for prognostication, current staging systems do not incorporate patient factors or other high-risk tumor features that influence outcomes, which led to the NCCN reclassifying CSCC into low-, high-, and very high-risk groups. The NCCN guidelines also made a new recommendation that Mohs or PDEMA be the preferred method for tissue processing for high- and very-high-risk tumors, based on this new stratification.
However, these changes to the NCCN guidelines have not been validated. The goal of this study was to compare outcomes in very-high-, high-, and low-risk NCCN groups as well as comparing outcomes of CSCCs stratified by Mohs and WLE.
Dr. Ruiz and colleagues conducted a retrospective cohort study using patient data from two tertiary care academic medical centers. Their analysis included 10,196 tumors from 8,727 patients that were then stratified into low-risk (3,054 tumors [30.0%]), high-risk (6,269 tumors [61.5%]), and very-high-risk (873 tumors [8.6%]) groups.
Tumors in the very-high-risk group were more likely to have high-risk tumor and histologic features, such as large-caliber perineural invasion, large diameter, invasion beyond the subcutaneous fat or bone, poor differentiation, and lymphovascular invasion.
The authors found that, compared with the low-risk group, the high- and very-high-risk groups demonstrated a greater risk of LR (high-risk subhazard ratio, 1.99; P = .007; very-high-risk SHR, 12.66; P < .001); NM (high-risk SHR, 4.26; P = .02; very-high-risk SHR, 62.98; P < .001); DM (high-risk SHR, 2.2 × 107;P < .001; very-high-risk SHR, 6.3 × 108;P < .001); and DSD (high-risk SHR, 4.02; P = .03; very-high-risk SHR, 93.87; P < .001).
Adjusted 5-year cumulative incidence was also significantly higher in very-high- vs. high- and low-risk groups for all endpoints.
They next compared the procedures used to treat the tumors. Compared with WLE, patients treated with Mohs or PDEMA had a lower risk of LR (SHR, 0.65; P = .009), DM (SHR, 0.38; P = .02), and DSD (SHR, 0.55; P = .006).
Mohs and PDEMA have already became preferred surgical modalities for high- and very-high-risk tumors, and Dr. Ruiz pointed out that their analysis was for the entire cohort.
“We did not stratify this by risk group,” she said. “So our results do not change anything clinically at this time, but support prior studies that have found Mohs/PDEMA to have improved outcomes, compared to WLE. Further studies are needed evaluating surgical approach by risk-group.”
However, she emphasized, “our studies further validate prior evidence showing Mohs/PDEMA to have the lowest rates of recurrence and in this study, even disease-related death.”
Approached for an independent comment, Jeffrey M. Farma, MD, codirector of the melanoma and skin cancer program, and interim chair, department of surgical oncology, Fox Chase Cancer Center, Philadelphia, noted that this study supports the new reclassification of CSCC tumors by the NCCN, and confirms that the high-risk and very-high-risk tumors surely have a higher propensity for worse outcomes overall.
“That being said, the notion for type of resection and margin assessment is still an area of controversy in the dermatology, surgical oncology, and pathology community,” said Dr. Farma, who is also on the NCCN panel. “I believe we need further studies to truly understand the role of the type of resection and the pathologic evaluation play in this disease process.”
He also pointed out that it is unclear in this dataset if patients initially had any imaging to evaluate for local or regional metastatic disease. “It would be helpful to have a further understanding of which type of provider was performing the excisions, the type of excision decided upon, and if there was a standardized approach to [decide] which patients had MOHS or PDEMA and what was the surveillance for these patients both with imaging and physical examinations,” said Dr. Farma. “This data also evaluated patients over a long time period where practice patterns have evolved.”
Finally, he noted that the number of local and metastatic events subjectively seems low in this cohort. “We also do not know any information about the initial workup of the patients, patterns of recurrence, and adjuvant or palliative treatment after recurrence,” he added. “It is unclear from this manuscript how the type of resection or pathologic evaluation of margins leads to improved outcomes and further prospective studies are warranted.”
Dr. Ruiz reports reported serving as a coinvestigator and principal investigator for Regeneron Pharmaceuticals and as a coinvestigator for Merck and consulting for Checkpoint Therapeutics, BDO, and Genentech outside the submitted work. Dr. Farma has no disclosures other than the NCCN panel. The study was supported by Harvard Catalyst and the Harvard University Clinical and Translational Science Center and by Harvard University and its affiliated academic health care centers and partially supported by the Melvin Markey Discovery Fund at Cleveland Clinic Foundation.
FROM JAMA DERMATOLOGY
FDA passes on olorofim despite critical need for antifungals
The U.S. Food and Drug Administration is declining to approve the investigational antifungal olorofim and is asking for more data, according to a news release from the manufacturer, F2G.
Olorofim, (formerly known as F901318) is the first in the orotomide class of antifungals to be evaluated clinically for the treatment of invasive mold infections. Its maker, F2G, is a biotech company based in Manchester, England, that focuses on developing drugs for rare fungal diseases.
The company says it remains optimistic and will address the FDA’s requirements and continue to seek approval.
The FDA’s denial comes as fungal infections are becoming increasingly common and resistant to treatment. There are only four antifungal classes currently available, and there are few new candidates in the pipeline. No new classes of antifungals have been developed in 2 decades.
David Andes, MD, chief of the division of infectious diseases at the University of Wisconsin–Madison, told this news organization he shares the hope that the company can meet the requirements to gain approval.
“Some of the early results were really exciting,” he said. “People are enthusiastic about the compound because it has a novel mechanism of action, and it is active against a group of fungi that we have limited to no options for.”
Early results ‘exciting’
Dr. Andes said several physicians have been able to prescribe olorofim under the compassionate use program “and have witnessed success.”
Olorofim is the first antifungal agent to be granted breakthrough therapy designation, which the FDA granted in November 2019 for the treatment of invasive mold infections for patients with limited or no treatment options, including patients with refractory aspergillosis or those who are intolerant of currently available therapy. It is also indicated for infections due to Lomentospora prolificans, Scedosporium, and Scopulariopsis species.
Olorofim received a second breakthrough therapy designation in October 2020. The second designation was granted for treatment of central nervous system coccidioidomycosis that is refractory or for cases that cannot be treated with standard-of-care therapy.
It is very difficult for patients to be approved to receive compassionate use medicines, Dr. Andes pointed out. “I’d like to have access sooner rather than later,” he added.
Dr. Andes says the drugs are expensive and are time consuming to produce. And with antifungals, it is difficult to demonstrate safety in comparison with other antimicrobial agents because “it’s hard to hurt a fungus without having toxicity with human cells.”
Complete response letter issued
F2G received a complete response letter from the FDA regarding its new drug application for olorofim, according to the news release issued by the company. “While F2G is disappointed with this outcome, we remain optimistic about olorofim’s potential to address an unmet need for patients with invasive fungal infections who have exhausted their treatment alternatives,” Francesco Maria Lavino, chief executive officer, said in the release. “We are assessing the details of the Complete Response Letter, and we plan to meet with the FDA to discuss it further.”
Dr. Andes says few other antifungals have made it as far as olorofim in clinical trials.
Lance B. Price, PhD, codirector of the Antibiotic Resistance Action Center at George Washington University in Washington, told this news organization that despite the lack of antifungals in the pipeline, “We can’t allow our desperation to override the checkpoints that ensure that antifungals are safe to use in people.”
In the meantime, he said, it is important to preserve the utility of current antifungals by avoiding overusing them in medicine and agriculture.
“Sadly,” he said, “a drug called ipflufenoquin, which works by a similar mode of action as olorofim, has already been approved by the U.S. Environmental Protection Agency for use in plant agriculture. This could weaken the effectiveness of olorofim for treating things like Aspergillus infections even before the drug has been approved for use in humans.”
Plant drug undermining olorofim efficacy in humans
“While I’m sure this makes financial sense for the makers of ipflufenoquin, it borders on insanity from a public health perspective,” Dr. Price said.
Meanwhile, the global threat of fungal infections grows. The World Health Organization has launched its first-ever list of health-threatening fungi. Authors of a WHO report that contains the list write, “The invasive forms of these fungal infections often affect severely ill patients and those with significant underlying immune system–related conditions.”
F2G will continue to expand olorofim’s clinical trial program, according to the company’s statement. Along with its partner, Shionogi, it is enrolling patients with proven or probable invasive aspergillosis in a global phase 3 trial (OASIS), which will compare outcomes after treatment with olorofim in comparison with amphotericin B liposome (AmBisome) followed by standard of care.
A version of this article first appeared on Medscape.com.
The U.S. Food and Drug Administration is declining to approve the investigational antifungal olorofim and is asking for more data, according to a news release from the manufacturer, F2G.
Olorofim, (formerly known as F901318) is the first in the orotomide class of antifungals to be evaluated clinically for the treatment of invasive mold infections. Its maker, F2G, is a biotech company based in Manchester, England, that focuses on developing drugs for rare fungal diseases.
The company says it remains optimistic and will address the FDA’s requirements and continue to seek approval.
The FDA’s denial comes as fungal infections are becoming increasingly common and resistant to treatment. There are only four antifungal classes currently available, and there are few new candidates in the pipeline. No new classes of antifungals have been developed in 2 decades.
David Andes, MD, chief of the division of infectious diseases at the University of Wisconsin–Madison, told this news organization he shares the hope that the company can meet the requirements to gain approval.
“Some of the early results were really exciting,” he said. “People are enthusiastic about the compound because it has a novel mechanism of action, and it is active against a group of fungi that we have limited to no options for.”
Early results ‘exciting’
Dr. Andes said several physicians have been able to prescribe olorofim under the compassionate use program “and have witnessed success.”
Olorofim is the first antifungal agent to be granted breakthrough therapy designation, which the FDA granted in November 2019 for the treatment of invasive mold infections for patients with limited or no treatment options, including patients with refractory aspergillosis or those who are intolerant of currently available therapy. It is also indicated for infections due to Lomentospora prolificans, Scedosporium, and Scopulariopsis species.
Olorofim received a second breakthrough therapy designation in October 2020. The second designation was granted for treatment of central nervous system coccidioidomycosis that is refractory or for cases that cannot be treated with standard-of-care therapy.
It is very difficult for patients to be approved to receive compassionate use medicines, Dr. Andes pointed out. “I’d like to have access sooner rather than later,” he added.
Dr. Andes says the drugs are expensive and are time consuming to produce. And with antifungals, it is difficult to demonstrate safety in comparison with other antimicrobial agents because “it’s hard to hurt a fungus without having toxicity with human cells.”
Complete response letter issued
F2G received a complete response letter from the FDA regarding its new drug application for olorofim, according to the news release issued by the company. “While F2G is disappointed with this outcome, we remain optimistic about olorofim’s potential to address an unmet need for patients with invasive fungal infections who have exhausted their treatment alternatives,” Francesco Maria Lavino, chief executive officer, said in the release. “We are assessing the details of the Complete Response Letter, and we plan to meet with the FDA to discuss it further.”
Dr. Andes says few other antifungals have made it as far as olorofim in clinical trials.
Lance B. Price, PhD, codirector of the Antibiotic Resistance Action Center at George Washington University in Washington, told this news organization that despite the lack of antifungals in the pipeline, “We can’t allow our desperation to override the checkpoints that ensure that antifungals are safe to use in people.”
In the meantime, he said, it is important to preserve the utility of current antifungals by avoiding overusing them in medicine and agriculture.
“Sadly,” he said, “a drug called ipflufenoquin, which works by a similar mode of action as olorofim, has already been approved by the U.S. Environmental Protection Agency for use in plant agriculture. This could weaken the effectiveness of olorofim for treating things like Aspergillus infections even before the drug has been approved for use in humans.”
Plant drug undermining olorofim efficacy in humans
“While I’m sure this makes financial sense for the makers of ipflufenoquin, it borders on insanity from a public health perspective,” Dr. Price said.
Meanwhile, the global threat of fungal infections grows. The World Health Organization has launched its first-ever list of health-threatening fungi. Authors of a WHO report that contains the list write, “The invasive forms of these fungal infections often affect severely ill patients and those with significant underlying immune system–related conditions.”
F2G will continue to expand olorofim’s clinical trial program, according to the company’s statement. Along with its partner, Shionogi, it is enrolling patients with proven or probable invasive aspergillosis in a global phase 3 trial (OASIS), which will compare outcomes after treatment with olorofim in comparison with amphotericin B liposome (AmBisome) followed by standard of care.
A version of this article first appeared on Medscape.com.
The U.S. Food and Drug Administration is declining to approve the investigational antifungal olorofim and is asking for more data, according to a news release from the manufacturer, F2G.
Olorofim, (formerly known as F901318) is the first in the orotomide class of antifungals to be evaluated clinically for the treatment of invasive mold infections. Its maker, F2G, is a biotech company based in Manchester, England, that focuses on developing drugs for rare fungal diseases.
The company says it remains optimistic and will address the FDA’s requirements and continue to seek approval.
The FDA’s denial comes as fungal infections are becoming increasingly common and resistant to treatment. There are only four antifungal classes currently available, and there are few new candidates in the pipeline. No new classes of antifungals have been developed in 2 decades.
David Andes, MD, chief of the division of infectious diseases at the University of Wisconsin–Madison, told this news organization he shares the hope that the company can meet the requirements to gain approval.
“Some of the early results were really exciting,” he said. “People are enthusiastic about the compound because it has a novel mechanism of action, and it is active against a group of fungi that we have limited to no options for.”
Early results ‘exciting’
Dr. Andes said several physicians have been able to prescribe olorofim under the compassionate use program “and have witnessed success.”
Olorofim is the first antifungal agent to be granted breakthrough therapy designation, which the FDA granted in November 2019 for the treatment of invasive mold infections for patients with limited or no treatment options, including patients with refractory aspergillosis or those who are intolerant of currently available therapy. It is also indicated for infections due to Lomentospora prolificans, Scedosporium, and Scopulariopsis species.
Olorofim received a second breakthrough therapy designation in October 2020. The second designation was granted for treatment of central nervous system coccidioidomycosis that is refractory or for cases that cannot be treated with standard-of-care therapy.
It is very difficult for patients to be approved to receive compassionate use medicines, Dr. Andes pointed out. “I’d like to have access sooner rather than later,” he added.
Dr. Andes says the drugs are expensive and are time consuming to produce. And with antifungals, it is difficult to demonstrate safety in comparison with other antimicrobial agents because “it’s hard to hurt a fungus without having toxicity with human cells.”
Complete response letter issued
F2G received a complete response letter from the FDA regarding its new drug application for olorofim, according to the news release issued by the company. “While F2G is disappointed with this outcome, we remain optimistic about olorofim’s potential to address an unmet need for patients with invasive fungal infections who have exhausted their treatment alternatives,” Francesco Maria Lavino, chief executive officer, said in the release. “We are assessing the details of the Complete Response Letter, and we plan to meet with the FDA to discuss it further.”
Dr. Andes says few other antifungals have made it as far as olorofim in clinical trials.
Lance B. Price, PhD, codirector of the Antibiotic Resistance Action Center at George Washington University in Washington, told this news organization that despite the lack of antifungals in the pipeline, “We can’t allow our desperation to override the checkpoints that ensure that antifungals are safe to use in people.”
In the meantime, he said, it is important to preserve the utility of current antifungals by avoiding overusing them in medicine and agriculture.
“Sadly,” he said, “a drug called ipflufenoquin, which works by a similar mode of action as olorofim, has already been approved by the U.S. Environmental Protection Agency for use in plant agriculture. This could weaken the effectiveness of olorofim for treating things like Aspergillus infections even before the drug has been approved for use in humans.”
Plant drug undermining olorofim efficacy in humans
“While I’m sure this makes financial sense for the makers of ipflufenoquin, it borders on insanity from a public health perspective,” Dr. Price said.
Meanwhile, the global threat of fungal infections grows. The World Health Organization has launched its first-ever list of health-threatening fungi. Authors of a WHO report that contains the list write, “The invasive forms of these fungal infections often affect severely ill patients and those with significant underlying immune system–related conditions.”
F2G will continue to expand olorofim’s clinical trial program, according to the company’s statement. Along with its partner, Shionogi, it is enrolling patients with proven or probable invasive aspergillosis in a global phase 3 trial (OASIS), which will compare outcomes after treatment with olorofim in comparison with amphotericin B liposome (AmBisome) followed by standard of care.
A version of this article first appeared on Medscape.com.
Warts difficult to eradicate in immunocompromised children
.
Only a quarter of patients (24%) who were undergoing active cancer treatment experienced complete resolution of their warts, compared with 63.3% of patients who were not on active treatment.
In addition, warts persisted or worsened in 56.0% of patients receiving active treatment compared with 13.4% of those who were not receiving it.
“These data enable providers treating warts in children with cancer to have an educated discussion regarding the expected clinical progression of warts and the likelihood of response to wart therapy while on and off anti-cancer treatment,” the authors wrote in the study, published in Pediatric Dermatology.
In immunocompromised children, warts are more common than in the general pediatric population, and more resistant to treatment. But as the authors noted, data on the course and prognosis of warts in pediatric patients who are actively receiving anti-cancer therapy compared with patients who have completed treatment are limited.
Tina Ho, MD, PhD, of the department of dermatology, and colleagues from Boston Children’s Hospital, sought to analyze the clinical course of warts treated in this patient population at their institution over a 10-year period. They conducted a retrospective study of 72 children who were treated for cancer between 2011 and 2021, and who had also been treated for warts.
The median age of the cohort was 12 years, and they were followed for a median of 2 years following their diagnosis of warts. Within this group, more than half (55%) had hematologic malignancies, while 27% had a history of bone marrow transplantation.
Of note, the authors pointed out, 54% of the patients had plantar warts, and 60% of patients (38 of 63) with a documented number of warts had more than five at the time of presentation.
The treatment regimens that the children had received varied, with 81% of patients receiving cytotoxic chemotherapy and 23% of patients on targeted therapies that included immunotherapy.
The warts were most commonly treated with cryotherapy and topical salicylic acid; this was the case for those actively receiving oncology treatment or those who had completed their treatment regimens.
Outcomes of wart treatments were available in 25 of the patients undergoing active cancer treatment and in 30 of those who had completed treatment. For children on active oncology treatment, 5 (20%) achieved partial resolution, 6 (24%) achieved complete resolution, and 14 (56%) experienced persistence or worsening of their warts following therapy. Those who had completed treatment had better outcomes: Seven (23.3%) had a partial response, 19 (63.3%) had complete resolution, and 4 (13.4%) had persistence or worsening of warts after treatment of warts.
The authors also pointed out the treatment of warts can be painful, expensive, and time-consuming. “It is thus imperative that the risks and benefits of these treatments are carefully considered before proceeding with treatment,” wrote Dr. Ho and colleagues. “This is especially true in medically complex children with cancer who may be fearful of procedures and spend significant portions of their young lives within the medical system.”
Limitations to the study include its retrospective design and small sample size. Clinical data were not uniformly complete, and follow-up intervals varied among the participants. Also, it was conducted at a single-institution and at a large tertiary center, so the results may not be fully generalizable.
The authors declared no conflict of interest. No outside funding source was listed.
.
Only a quarter of patients (24%) who were undergoing active cancer treatment experienced complete resolution of their warts, compared with 63.3% of patients who were not on active treatment.
In addition, warts persisted or worsened in 56.0% of patients receiving active treatment compared with 13.4% of those who were not receiving it.
“These data enable providers treating warts in children with cancer to have an educated discussion regarding the expected clinical progression of warts and the likelihood of response to wart therapy while on and off anti-cancer treatment,” the authors wrote in the study, published in Pediatric Dermatology.
In immunocompromised children, warts are more common than in the general pediatric population, and more resistant to treatment. But as the authors noted, data on the course and prognosis of warts in pediatric patients who are actively receiving anti-cancer therapy compared with patients who have completed treatment are limited.
Tina Ho, MD, PhD, of the department of dermatology, and colleagues from Boston Children’s Hospital, sought to analyze the clinical course of warts treated in this patient population at their institution over a 10-year period. They conducted a retrospective study of 72 children who were treated for cancer between 2011 and 2021, and who had also been treated for warts.
The median age of the cohort was 12 years, and they were followed for a median of 2 years following their diagnosis of warts. Within this group, more than half (55%) had hematologic malignancies, while 27% had a history of bone marrow transplantation.
Of note, the authors pointed out, 54% of the patients had plantar warts, and 60% of patients (38 of 63) with a documented number of warts had more than five at the time of presentation.
The treatment regimens that the children had received varied, with 81% of patients receiving cytotoxic chemotherapy and 23% of patients on targeted therapies that included immunotherapy.
The warts were most commonly treated with cryotherapy and topical salicylic acid; this was the case for those actively receiving oncology treatment or those who had completed their treatment regimens.
Outcomes of wart treatments were available in 25 of the patients undergoing active cancer treatment and in 30 of those who had completed treatment. For children on active oncology treatment, 5 (20%) achieved partial resolution, 6 (24%) achieved complete resolution, and 14 (56%) experienced persistence or worsening of their warts following therapy. Those who had completed treatment had better outcomes: Seven (23.3%) had a partial response, 19 (63.3%) had complete resolution, and 4 (13.4%) had persistence or worsening of warts after treatment of warts.
The authors also pointed out the treatment of warts can be painful, expensive, and time-consuming. “It is thus imperative that the risks and benefits of these treatments are carefully considered before proceeding with treatment,” wrote Dr. Ho and colleagues. “This is especially true in medically complex children with cancer who may be fearful of procedures and spend significant portions of their young lives within the medical system.”
Limitations to the study include its retrospective design and small sample size. Clinical data were not uniformly complete, and follow-up intervals varied among the participants. Also, it was conducted at a single-institution and at a large tertiary center, so the results may not be fully generalizable.
The authors declared no conflict of interest. No outside funding source was listed.
.
Only a quarter of patients (24%) who were undergoing active cancer treatment experienced complete resolution of their warts, compared with 63.3% of patients who were not on active treatment.
In addition, warts persisted or worsened in 56.0% of patients receiving active treatment compared with 13.4% of those who were not receiving it.
“These data enable providers treating warts in children with cancer to have an educated discussion regarding the expected clinical progression of warts and the likelihood of response to wart therapy while on and off anti-cancer treatment,” the authors wrote in the study, published in Pediatric Dermatology.
In immunocompromised children, warts are more common than in the general pediatric population, and more resistant to treatment. But as the authors noted, data on the course and prognosis of warts in pediatric patients who are actively receiving anti-cancer therapy compared with patients who have completed treatment are limited.
Tina Ho, MD, PhD, of the department of dermatology, and colleagues from Boston Children’s Hospital, sought to analyze the clinical course of warts treated in this patient population at their institution over a 10-year period. They conducted a retrospective study of 72 children who were treated for cancer between 2011 and 2021, and who had also been treated for warts.
The median age of the cohort was 12 years, and they were followed for a median of 2 years following their diagnosis of warts. Within this group, more than half (55%) had hematologic malignancies, while 27% had a history of bone marrow transplantation.
Of note, the authors pointed out, 54% of the patients had plantar warts, and 60% of patients (38 of 63) with a documented number of warts had more than five at the time of presentation.
The treatment regimens that the children had received varied, with 81% of patients receiving cytotoxic chemotherapy and 23% of patients on targeted therapies that included immunotherapy.
The warts were most commonly treated with cryotherapy and topical salicylic acid; this was the case for those actively receiving oncology treatment or those who had completed their treatment regimens.
Outcomes of wart treatments were available in 25 of the patients undergoing active cancer treatment and in 30 of those who had completed treatment. For children on active oncology treatment, 5 (20%) achieved partial resolution, 6 (24%) achieved complete resolution, and 14 (56%) experienced persistence or worsening of their warts following therapy. Those who had completed treatment had better outcomes: Seven (23.3%) had a partial response, 19 (63.3%) had complete resolution, and 4 (13.4%) had persistence or worsening of warts after treatment of warts.
The authors also pointed out the treatment of warts can be painful, expensive, and time-consuming. “It is thus imperative that the risks and benefits of these treatments are carefully considered before proceeding with treatment,” wrote Dr. Ho and colleagues. “This is especially true in medically complex children with cancer who may be fearful of procedures and spend significant portions of their young lives within the medical system.”
Limitations to the study include its retrospective design and small sample size. Clinical data were not uniformly complete, and follow-up intervals varied among the participants. Also, it was conducted at a single-institution and at a large tertiary center, so the results may not be fully generalizable.
The authors declared no conflict of interest. No outside funding source was listed.
FROM PEDIATRIC DERMATOLOGY
Prognostic factors of SCCs in organ transplant recipients worse compared with general population
, results from a dual cohort study demonstrated.
The findings build on previous research and underscore the need for early diagnosis and aggressive surveillance in this patient population, corresponding author Adele C. Green, MBBS, PhD, professor and senior scientist at the QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia, and colleagues wrote in the study, which was published online in JAMA Dermatology. “Squamous cell carcinomas (SCCs) of the skin develop up to 77 times more frequently in immunosuppressed organ transplant recipients (OTRs) than the general population,” they wrote. “Because SCCs cause substantially more morbidity and death in the former, they are postulated to be innately more aggressive than in immunocompetent patients, but OTRs’ higher SCC mortality may simply reflect greater SCC tumor burdens per patient.”
In what is believed to be the first study of its kind, Dr. Green and colleagues drew data from two cohort studies to evaluate five key clinicopathologic indicators of poor SCC outcomes in organ transplant recipients, and in those from the general population in Queensland, Australia: cephalic location, perineural invasion, invasion to/beyond subcutaneous fat, poor differentiation, and tumor size greater than 20 mm. The study population included organ transplant recipients at high risk of skin cancer, who were enrolled in the Skin Tumours in Allograft Recipients (STAR) study, and those from a population-based cohort, the QSkin Sun and Health Study. STAR consisted of lung transplant recipients and kidney and liver transplant recipients at high risk of skin cancer who were recruited from tertiary centers and diagnosed with histopathologically confirmed SCC from 2012 to 2015. QSkin consisted of individuals from Queensland’s general adult population diagnosed with SCCs from 2012 to 2015.
SCC cases in QSkin were ascertained through Australia’s universal health insurance agency and linked with histopathology records. Next, the researchers performed data analysis from both cohort studies to determine the prevalence ratio (PR) of head/neck location, perineural invasion, tumor invasion to/beyond subcutaneous fat, poor cellular differentiation, and tumor diameter greater than 20 mm among SCCs among organ transplant recipients compared with the general population.
After combining the two studies, the researchers compared 741 SCCs excised from 191 organ transplant recipients and 2,558 SCCs excised from 1,507 individuals in the general population. Their median ages were similar (62.7 and 63.7 years, respectively) and most were male (78% and 63.4%, respectively).
As for site of involvement, SCCs developed most often on the head and neck in the transplant recipients (38.6%) and on the arms and hands in the general population (35.2%). After adjustment for age and sex, perineural invasion of SCCs was more than twice as common in transplant recipients than among cases in the general population, as was invasion to/beyond subcutaneous fat (PR of 2.37 for both associations).
In other findings, compared with SCCs in the general population, poorly vs. well-differentiated SCCs were more than threefold more common in transplant recipients (PR, 3.45), while the prevalence of tumors greater than 20 mm vs. 20 mm or smaller was moderately higher in transplant recipients (PR, 1.52).
“These findings are considered generalizable, confirming that OTRs’ poorer SCC outcomes are associated with not only their sheer numbers of SCC tumors, but also with a strong shift toward more invasive, less differentiated, and larger SCC tumors, in agreement with previous findings,” the researchers wrote. “This shift is likely associated with decreased immunosurveillance resulting from immunosuppressive therapy (since carcinogenesis decelerates with therapy cessation) interacting with effects of high UV radiation exposure.”
They acknowledged certain limitations of their analysis, chiefly the lack of central review of SCCs to ensure standard assessment of histopathologic features “including caliber of nerves with perineural invasion and cell differentiation; such a review would not have been feasible logistically.”
The study was supported by grants from the National Health and Medical Research Council of Australia. The researchers reported having no disclosures related to the submitted work.
, results from a dual cohort study demonstrated.
The findings build on previous research and underscore the need for early diagnosis and aggressive surveillance in this patient population, corresponding author Adele C. Green, MBBS, PhD, professor and senior scientist at the QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia, and colleagues wrote in the study, which was published online in JAMA Dermatology. “Squamous cell carcinomas (SCCs) of the skin develop up to 77 times more frequently in immunosuppressed organ transplant recipients (OTRs) than the general population,” they wrote. “Because SCCs cause substantially more morbidity and death in the former, they are postulated to be innately more aggressive than in immunocompetent patients, but OTRs’ higher SCC mortality may simply reflect greater SCC tumor burdens per patient.”
In what is believed to be the first study of its kind, Dr. Green and colleagues drew data from two cohort studies to evaluate five key clinicopathologic indicators of poor SCC outcomes in organ transplant recipients, and in those from the general population in Queensland, Australia: cephalic location, perineural invasion, invasion to/beyond subcutaneous fat, poor differentiation, and tumor size greater than 20 mm. The study population included organ transplant recipients at high risk of skin cancer, who were enrolled in the Skin Tumours in Allograft Recipients (STAR) study, and those from a population-based cohort, the QSkin Sun and Health Study. STAR consisted of lung transplant recipients and kidney and liver transplant recipients at high risk of skin cancer who were recruited from tertiary centers and diagnosed with histopathologically confirmed SCC from 2012 to 2015. QSkin consisted of individuals from Queensland’s general adult population diagnosed with SCCs from 2012 to 2015.
SCC cases in QSkin were ascertained through Australia’s universal health insurance agency and linked with histopathology records. Next, the researchers performed data analysis from both cohort studies to determine the prevalence ratio (PR) of head/neck location, perineural invasion, tumor invasion to/beyond subcutaneous fat, poor cellular differentiation, and tumor diameter greater than 20 mm among SCCs among organ transplant recipients compared with the general population.
After combining the two studies, the researchers compared 741 SCCs excised from 191 organ transplant recipients and 2,558 SCCs excised from 1,507 individuals in the general population. Their median ages were similar (62.7 and 63.7 years, respectively) and most were male (78% and 63.4%, respectively).
As for site of involvement, SCCs developed most often on the head and neck in the transplant recipients (38.6%) and on the arms and hands in the general population (35.2%). After adjustment for age and sex, perineural invasion of SCCs was more than twice as common in transplant recipients than among cases in the general population, as was invasion to/beyond subcutaneous fat (PR of 2.37 for both associations).
In other findings, compared with SCCs in the general population, poorly vs. well-differentiated SCCs were more than threefold more common in transplant recipients (PR, 3.45), while the prevalence of tumors greater than 20 mm vs. 20 mm or smaller was moderately higher in transplant recipients (PR, 1.52).
“These findings are considered generalizable, confirming that OTRs’ poorer SCC outcomes are associated with not only their sheer numbers of SCC tumors, but also with a strong shift toward more invasive, less differentiated, and larger SCC tumors, in agreement with previous findings,” the researchers wrote. “This shift is likely associated with decreased immunosurveillance resulting from immunosuppressive therapy (since carcinogenesis decelerates with therapy cessation) interacting with effects of high UV radiation exposure.”
They acknowledged certain limitations of their analysis, chiefly the lack of central review of SCCs to ensure standard assessment of histopathologic features “including caliber of nerves with perineural invasion and cell differentiation; such a review would not have been feasible logistically.”
The study was supported by grants from the National Health and Medical Research Council of Australia. The researchers reported having no disclosures related to the submitted work.
, results from a dual cohort study demonstrated.
The findings build on previous research and underscore the need for early diagnosis and aggressive surveillance in this patient population, corresponding author Adele C. Green, MBBS, PhD, professor and senior scientist at the QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia, and colleagues wrote in the study, which was published online in JAMA Dermatology. “Squamous cell carcinomas (SCCs) of the skin develop up to 77 times more frequently in immunosuppressed organ transplant recipients (OTRs) than the general population,” they wrote. “Because SCCs cause substantially more morbidity and death in the former, they are postulated to be innately more aggressive than in immunocompetent patients, but OTRs’ higher SCC mortality may simply reflect greater SCC tumor burdens per patient.”
In what is believed to be the first study of its kind, Dr. Green and colleagues drew data from two cohort studies to evaluate five key clinicopathologic indicators of poor SCC outcomes in organ transplant recipients, and in those from the general population in Queensland, Australia: cephalic location, perineural invasion, invasion to/beyond subcutaneous fat, poor differentiation, and tumor size greater than 20 mm. The study population included organ transplant recipients at high risk of skin cancer, who were enrolled in the Skin Tumours in Allograft Recipients (STAR) study, and those from a population-based cohort, the QSkin Sun and Health Study. STAR consisted of lung transplant recipients and kidney and liver transplant recipients at high risk of skin cancer who were recruited from tertiary centers and diagnosed with histopathologically confirmed SCC from 2012 to 2015. QSkin consisted of individuals from Queensland’s general adult population diagnosed with SCCs from 2012 to 2015.
SCC cases in QSkin were ascertained through Australia’s universal health insurance agency and linked with histopathology records. Next, the researchers performed data analysis from both cohort studies to determine the prevalence ratio (PR) of head/neck location, perineural invasion, tumor invasion to/beyond subcutaneous fat, poor cellular differentiation, and tumor diameter greater than 20 mm among SCCs among organ transplant recipients compared with the general population.
After combining the two studies, the researchers compared 741 SCCs excised from 191 organ transplant recipients and 2,558 SCCs excised from 1,507 individuals in the general population. Their median ages were similar (62.7 and 63.7 years, respectively) and most were male (78% and 63.4%, respectively).
As for site of involvement, SCCs developed most often on the head and neck in the transplant recipients (38.6%) and on the arms and hands in the general population (35.2%). After adjustment for age and sex, perineural invasion of SCCs was more than twice as common in transplant recipients than among cases in the general population, as was invasion to/beyond subcutaneous fat (PR of 2.37 for both associations).
In other findings, compared with SCCs in the general population, poorly vs. well-differentiated SCCs were more than threefold more common in transplant recipients (PR, 3.45), while the prevalence of tumors greater than 20 mm vs. 20 mm or smaller was moderately higher in transplant recipients (PR, 1.52).
“These findings are considered generalizable, confirming that OTRs’ poorer SCC outcomes are associated with not only their sheer numbers of SCC tumors, but also with a strong shift toward more invasive, less differentiated, and larger SCC tumors, in agreement with previous findings,” the researchers wrote. “This shift is likely associated with decreased immunosurveillance resulting from immunosuppressive therapy (since carcinogenesis decelerates with therapy cessation) interacting with effects of high UV radiation exposure.”
They acknowledged certain limitations of their analysis, chiefly the lack of central review of SCCs to ensure standard assessment of histopathologic features “including caliber of nerves with perineural invasion and cell differentiation; such a review would not have been feasible logistically.”
The study was supported by grants from the National Health and Medical Research Council of Australia. The researchers reported having no disclosures related to the submitted work.
FROM JAMA DERMATOLOGY
A 63-year-old male presented for evaluation of worsening genital lesions and associated swelling
.1 Clinically, ENV presents as verrucous, hyperkeratotic, cobblestone-like patches, plaques, and nodules with associated nonpitting edema of the affected body area.1 Secondary bacterial infections are common and often worsen the clinical course. The etiology of ENV involves chronic lymphatic obstruction and venous insufficiency, with additional risk factors including obesity, chronic lymphedema, bacterial infection, surgery or trauma, neoplasia, radiation, congestive heart failure, or scleroderma.2,3 While most commonly presenting on the lower extremities, cases have been reported involving the abdomen, sacrum, ears, buttocks, and penoscrotal area.1,2
Regardless of location, the pathogenesis of ENV remains the same. Chronic lymphatic obstruction results in accumulation and lymphostasis of protein-rich dermal fluid, which subsequently precipitates fibroblast proliferation and activation, suppression of the local immune response and development of recurrent lymphangitis, chronic inflammation, and potential secondary bacterial infection.2,4
There is no standard of care for the treatment and management of ENV and recurrence is common. Interventions often involve those used for chronic lymphedema – including leg elevation, compression stockings or devices, skin hygiene, and lymphatic pumping.2,3 Medical management with topical and oral retinoids has been reported, as well as emphasis on weight loss and infection control.1,4 Surgical intervention is often reserved for refractory cases that fail to respond to more conservative management, or severe presentations resulting in extensive functional and aesthetic impairment. Less commonly reported treatment modalities include lymphaticovenular anastomosis and ablative carbon dioxide laser use, although this latter intervention demonstrated minimal improvement in this patient.5,6
Penoscrotal ENV is a rare form of ENV affecting the genital region of males, often resulting in significant disfigurement, functional impairment, and psychosocial distress. Penoscrotal elephantiasis can be idiopathic, due to filarial infections, scleroinflammatory stricture of the urethra, Chlamydia trachomatis infection, and lymphostasis secondary to chronic inflammatory conditions such as streptococcal infections, radiotherapy, surgery, chronic venous stasis, or Kaposi sarcoma.7
In addition, hidradenitis suppurativa (HS) has been documented multiple times in the literature in association with the development of ENV, detailing lymphatic scarring secondary to chronic inguinal HS as the main pathogenic factor.8,9
Surgery is the mainstay of treatment for penoscrotal ENV, which not only improves functionality and cosmesis, but also aids in prevention of rare malignant sequelae, such as lymphangiosarcoma.10 Such interventions can involve lymphangioplasty to aid in lymphatic drainage or excision of the mass and subcutaneous tissue with full-thickness skin grafting for reconstruction.7 Collaboration between urology, plastic surgery, and dermatology is often essential to obtain adequate care with satisfactory outcomes and minimal recurrence for patients with this uncommon condition.
This case and photo were submitted by Marlee Hill, a medical student at the University of Oklahoma, Oklahoma City; and Michael Franzetti, MD, and Jeffrey McBride, MD, department of dermatology, University of Oklahoma Health Sciences Center. The column was edited by Donna Bilu Martin, MD.
Dr. Donna Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to d[email protected].
References
1. Hadian Y et al. Dermatol Online J. 2019 Dec 15;25(12):13030/qt6rn1s8ff.
2. Judge N and Kilic A. J Dermatol Case Rep. 2016 Nov 13;10(2):32-4.
3. Dean SM et al. J Am Acad Dermatol. 2011 Jun;64(6):1104-10.
4. Sisto K and Khachemoune A. Am J Clin Dermatol. 2008;9(3):141-6.
5. Motegi S et al. Dermatology. 2007;215(2):147-51.
6. Robinson CG et al. J Cutan Med Surg. 2018;22(6):611-3.
7. Koualla S et al. Ann Chir Plast Esthet. 2023 Apr 10;S0294-1260(23)00035-3.
8. Lelonek E et al. Acta Derm Venereol. 2021 Feb 11;101(2):adv00389.
9. Good LM et al. J Am Acad Dermatol. 2011 May;64(5):993-4.
10. Cerri A et al. Eur J Dermatol. 1998 Oct-Nov;8(7):511-4.
.1 Clinically, ENV presents as verrucous, hyperkeratotic, cobblestone-like patches, plaques, and nodules with associated nonpitting edema of the affected body area.1 Secondary bacterial infections are common and often worsen the clinical course. The etiology of ENV involves chronic lymphatic obstruction and venous insufficiency, with additional risk factors including obesity, chronic lymphedema, bacterial infection, surgery or trauma, neoplasia, radiation, congestive heart failure, or scleroderma.2,3 While most commonly presenting on the lower extremities, cases have been reported involving the abdomen, sacrum, ears, buttocks, and penoscrotal area.1,2
Regardless of location, the pathogenesis of ENV remains the same. Chronic lymphatic obstruction results in accumulation and lymphostasis of protein-rich dermal fluid, which subsequently precipitates fibroblast proliferation and activation, suppression of the local immune response and development of recurrent lymphangitis, chronic inflammation, and potential secondary bacterial infection.2,4
There is no standard of care for the treatment and management of ENV and recurrence is common. Interventions often involve those used for chronic lymphedema – including leg elevation, compression stockings or devices, skin hygiene, and lymphatic pumping.2,3 Medical management with topical and oral retinoids has been reported, as well as emphasis on weight loss and infection control.1,4 Surgical intervention is often reserved for refractory cases that fail to respond to more conservative management, or severe presentations resulting in extensive functional and aesthetic impairment. Less commonly reported treatment modalities include lymphaticovenular anastomosis and ablative carbon dioxide laser use, although this latter intervention demonstrated minimal improvement in this patient.5,6
Penoscrotal ENV is a rare form of ENV affecting the genital region of males, often resulting in significant disfigurement, functional impairment, and psychosocial distress. Penoscrotal elephantiasis can be idiopathic, due to filarial infections, scleroinflammatory stricture of the urethra, Chlamydia trachomatis infection, and lymphostasis secondary to chronic inflammatory conditions such as streptococcal infections, radiotherapy, surgery, chronic venous stasis, or Kaposi sarcoma.7
In addition, hidradenitis suppurativa (HS) has been documented multiple times in the literature in association with the development of ENV, detailing lymphatic scarring secondary to chronic inguinal HS as the main pathogenic factor.8,9
Surgery is the mainstay of treatment for penoscrotal ENV, which not only improves functionality and cosmesis, but also aids in prevention of rare malignant sequelae, such as lymphangiosarcoma.10 Such interventions can involve lymphangioplasty to aid in lymphatic drainage or excision of the mass and subcutaneous tissue with full-thickness skin grafting for reconstruction.7 Collaboration between urology, plastic surgery, and dermatology is often essential to obtain adequate care with satisfactory outcomes and minimal recurrence for patients with this uncommon condition.
This case and photo were submitted by Marlee Hill, a medical student at the University of Oklahoma, Oklahoma City; and Michael Franzetti, MD, and Jeffrey McBride, MD, department of dermatology, University of Oklahoma Health Sciences Center. The column was edited by Donna Bilu Martin, MD.
Dr. Donna Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to d[email protected].
References
1. Hadian Y et al. Dermatol Online J. 2019 Dec 15;25(12):13030/qt6rn1s8ff.
2. Judge N and Kilic A. J Dermatol Case Rep. 2016 Nov 13;10(2):32-4.
3. Dean SM et al. J Am Acad Dermatol. 2011 Jun;64(6):1104-10.
4. Sisto K and Khachemoune A. Am J Clin Dermatol. 2008;9(3):141-6.
5. Motegi S et al. Dermatology. 2007;215(2):147-51.
6. Robinson CG et al. J Cutan Med Surg. 2018;22(6):611-3.
7. Koualla S et al. Ann Chir Plast Esthet. 2023 Apr 10;S0294-1260(23)00035-3.
8. Lelonek E et al. Acta Derm Venereol. 2021 Feb 11;101(2):adv00389.
9. Good LM et al. J Am Acad Dermatol. 2011 May;64(5):993-4.
10. Cerri A et al. Eur J Dermatol. 1998 Oct-Nov;8(7):511-4.
.1 Clinically, ENV presents as verrucous, hyperkeratotic, cobblestone-like patches, plaques, and nodules with associated nonpitting edema of the affected body area.1 Secondary bacterial infections are common and often worsen the clinical course. The etiology of ENV involves chronic lymphatic obstruction and venous insufficiency, with additional risk factors including obesity, chronic lymphedema, bacterial infection, surgery or trauma, neoplasia, radiation, congestive heart failure, or scleroderma.2,3 While most commonly presenting on the lower extremities, cases have been reported involving the abdomen, sacrum, ears, buttocks, and penoscrotal area.1,2
Regardless of location, the pathogenesis of ENV remains the same. Chronic lymphatic obstruction results in accumulation and lymphostasis of protein-rich dermal fluid, which subsequently precipitates fibroblast proliferation and activation, suppression of the local immune response and development of recurrent lymphangitis, chronic inflammation, and potential secondary bacterial infection.2,4
There is no standard of care for the treatment and management of ENV and recurrence is common. Interventions often involve those used for chronic lymphedema – including leg elevation, compression stockings or devices, skin hygiene, and lymphatic pumping.2,3 Medical management with topical and oral retinoids has been reported, as well as emphasis on weight loss and infection control.1,4 Surgical intervention is often reserved for refractory cases that fail to respond to more conservative management, or severe presentations resulting in extensive functional and aesthetic impairment. Less commonly reported treatment modalities include lymphaticovenular anastomosis and ablative carbon dioxide laser use, although this latter intervention demonstrated minimal improvement in this patient.5,6
Penoscrotal ENV is a rare form of ENV affecting the genital region of males, often resulting in significant disfigurement, functional impairment, and psychosocial distress. Penoscrotal elephantiasis can be idiopathic, due to filarial infections, scleroinflammatory stricture of the urethra, Chlamydia trachomatis infection, and lymphostasis secondary to chronic inflammatory conditions such as streptococcal infections, radiotherapy, surgery, chronic venous stasis, or Kaposi sarcoma.7
In addition, hidradenitis suppurativa (HS) has been documented multiple times in the literature in association with the development of ENV, detailing lymphatic scarring secondary to chronic inguinal HS as the main pathogenic factor.8,9
Surgery is the mainstay of treatment for penoscrotal ENV, which not only improves functionality and cosmesis, but also aids in prevention of rare malignant sequelae, such as lymphangiosarcoma.10 Such interventions can involve lymphangioplasty to aid in lymphatic drainage or excision of the mass and subcutaneous tissue with full-thickness skin grafting for reconstruction.7 Collaboration between urology, plastic surgery, and dermatology is often essential to obtain adequate care with satisfactory outcomes and minimal recurrence for patients with this uncommon condition.
This case and photo were submitted by Marlee Hill, a medical student at the University of Oklahoma, Oklahoma City; and Michael Franzetti, MD, and Jeffrey McBride, MD, department of dermatology, University of Oklahoma Health Sciences Center. The column was edited by Donna Bilu Martin, MD.
Dr. Donna Bilu Martin is a board-certified dermatologist in private practice at Premier Dermatology, MD, in Aventura, Fla. More diagnostic cases are available at mdedge.com/dermatology. To submit a case for possible publication, send an email to d[email protected].
References
1. Hadian Y et al. Dermatol Online J. 2019 Dec 15;25(12):13030/qt6rn1s8ff.
2. Judge N and Kilic A. J Dermatol Case Rep. 2016 Nov 13;10(2):32-4.
3. Dean SM et al. J Am Acad Dermatol. 2011 Jun;64(6):1104-10.
4. Sisto K and Khachemoune A. Am J Clin Dermatol. 2008;9(3):141-6.
5. Motegi S et al. Dermatology. 2007;215(2):147-51.
6. Robinson CG et al. J Cutan Med Surg. 2018;22(6):611-3.
7. Koualla S et al. Ann Chir Plast Esthet. 2023 Apr 10;S0294-1260(23)00035-3.
8. Lelonek E et al. Acta Derm Venereol. 2021 Feb 11;101(2):adv00389.
9. Good LM et al. J Am Acad Dermatol. 2011 May;64(5):993-4.
10. Cerri A et al. Eur J Dermatol. 1998 Oct-Nov;8(7):511-4.
