Dermatology News

For over 200 years, researchers have been captivated by axolotl salamanders (Ambystoma mexicanum) and their remarkable regenerative abilities, seeking to uncover secrets that could revolutionize regenerative medicine, including the scarless healing of wounds.

“The axolotl salamander is the most studied animal ever in science for its neotenic ability to regenerate,” Jill S. Waibel, MD, dermatologist and researcher in Miami, Florida, said in an interview. Neotenic tissue retains a juvenile or immature state throughout an organism’s life. In the case of the axolotl, “it can regenerate limbs, part of its heart, even its brain.”

 

A 2019 review of several studies on the regenerative abilities of axolotls highlights the importance of gene activity in controlling its skin regeneration. Specifically, growth factors such as fibroblast growth factors, transforming growth factor beta, and Wnt play a key role in guiding how the creature’s skin cells behave during healing and regrowth. The immune response , particularly the actions of macrophages and neutrophils, is also crucial in the early stages of regeneration, as these cells clear away dead tissue and kickstart the healing process.

After studying the axolotl for the past 8 years, including mapping its genetic makeup, Waibel and researchers at RegenX Science are developing a line of cosmeceutical and over-the-counter products containing urodele collagen extract derived from the creature’s neotenic tissue, without harming the animal. In axolotls, Waibel explained, damaged neotenic tissue “still thinks it’s in fetal mode, so if it injures its muscle, bone, nerves, collagen, or skin, everything will redevelop. After a few months in utero, that process stops in humans, but it never stops in the axolotl. The axolotl has scarless healing and immunity because of antimicrobial properties found in the neotenic tissue.”

RegenX scientists have developed a proprietary decellularization process that renders the urodele collagen extract safe and effective for use in humans. “We then harnessed a reservoir of bioactive peptides, which are small proteins that come from the axolotl, but they don’t contain any RNA or DNA that could confer the risk of any diseases or cancer,” she added.

According to Waibel, who is also subsection chief of dermatology at Baptist Hospital and past medical director of the Miami Cancer Institute’s Multidisciplinary Skin Cancer Clinic, genetic analysis of the axolotl revealed genes that have not been seen in humans. The urodele collagen extract also has anti-inflammatory and analgesic properties. “It decreases TNF [tumor necrosis factor] and IL [interleukin]–23 and stimulates regenerative pathways like FETUB (Fetuin-B), which is a gene involved in tissue regeneration,” she said. “We’re exploring these for some products.”

Institutional Review Board–approved human clinical trials at three US sites are nearly complete for evaluating an antiaging hydrating daily serum, an antiaging serum for damaged skin, and a restorative serum to be applied following cosmetic procedures, all containing the extract. The product furthest along is a “super gel” that contains properties of the urodele collagen extract.

In a proof-of-concept study using a third-degree burn model in two pigs, Waibel and colleagues at the University of Miami, found that 3 days after the injury was induced, application of the gel led to 92% reepithelialization of the pig’s skin, compared with only 54% in untreated skin.

Shortly after this study was conducted, a burn patient was referred to Waibel — 4 years after he was struck by lightning while fishing on a boat in Mississippi, an accident that resulted in the loss of his right arm and both legs. During a telemedicine consultation, Waibel noticed open ulcers on his chest. “What are those from?” she asked. “They’re from my accident 4 years ago,” he replied. 

After the man flew to Miami for an in-person evaluation, Waibel treated his ulcers with a fractional laser to debride the wound, then applied the gel as part of a proof-of-concept approach, testing its potential in a real-world patient setting. Within 3 weeks, the long-standing ulcerated area had healed completely, marking the first time a human was treated with the super gel.

Looking ahead, the million-dollar question, Waibel noted, is how much healing can be achieved in humans with formulations of axolotl-derived technology. “For example, can we help a spinal cord injury patient? That sounds like a science fiction movie, but there are proteins in genes in this animal that we have turned off that potentially can be turned on in a human,” she said. “It’s very exciting.”

 

Arisa E. Ortiz, MD, director of Laser and Cosmetic Dermatology at the University of California, San Diego, and current president of the American Society for Laser Medicine and Surgery, who was asked to comment on this work, said that the use of urodele collagen extract derived from axolotl tissue “is an exciting innovation, especially given its unique properties like scarless healing and antimicrobial activity.” 

While the results from preclinical and proof-of-concept studies are promising, “a key limitation lies in understanding the extent to which these findings will translate to human applications,” Ortiz said. “Overall, this research contributes significantly to the fields of regenerative medicine and dermatology, offering hope for more effective treatments in the future.” 

 

Christine Ko, MD, professor of dermatology and pathology at Yale University, New Haven, Connecticut, who was also asked to provide her insights on the topic, said that, if researchers could replicate the axolotl salamander’s ability to regenerate its own limbs and organs, “medicine would be transformed. Rather than transplant another person’s organ with lifelong immunosuppression, a regenerative treatment could program a patient’s own body to create a needed organ. 

“On a simpler level,” she continued, “regenerating skin and its underlying structures could hasten wound healing and potentially even treat hair loss. This is not a pipe dream, as Waibel has successfully treated severe ulcers using a super gel containing urodele collagen extract. Urodele collagen is type XII collagen, important in the salamander’s capacity to heal and regenerate.”

Waibel disclosed that she is a scientific adviser to RegenX and is a member of the company’s board of directors. Ortiz and Ko reported having no relevant disclosures.

A version of this article first appeared on Medscape.com.

For over 200 years, researchers have been captivated by axolotl salamanders (Ambystoma mexicanum) and their remarkable regenerative abilities, seeking to uncover secrets that could revolutionize regenerative medicine, including the scarless healing of wounds.

“The axolotl salamander is the most studied animal ever in science for its neotenic ability to regenerate,” Jill S. Waibel, MD, dermatologist and researcher in Miami, Florida, said in an interview. Neotenic tissue retains a juvenile or immature state throughout an organism’s life. In the case of the axolotl, “it can regenerate limbs, part of its heart, even its brain.”

 

A 2019 review of several studies on the regenerative abilities of axolotls highlights the importance of gene activity in controlling its skin regeneration. Specifically, growth factors such as fibroblast growth factors, transforming growth factor beta, and Wnt play a key role in guiding how the creature’s skin cells behave during healing and regrowth. The immune response , particularly the actions of macrophages and neutrophils, is also crucial in the early stages of regeneration, as these cells clear away dead tissue and kickstart the healing process.

After studying the axolotl for the past 8 years, including mapping its genetic makeup, Waibel and researchers at RegenX Science are developing a line of cosmeceutical and over-the-counter products containing urodele collagen extract derived from the creature’s neotenic tissue, without harming the animal. In axolotls, Waibel explained, damaged neotenic tissue “still thinks it’s in fetal mode, so if it injures its muscle, bone, nerves, collagen, or skin, everything will redevelop. After a few months in utero, that process stops in humans, but it never stops in the axolotl. The axolotl has scarless healing and immunity because of antimicrobial properties found in the neotenic tissue.”

RegenX scientists have developed a proprietary decellularization process that renders the urodele collagen extract safe and effective for use in humans. “We then harnessed a reservoir of bioactive peptides, which are small proteins that come from the axolotl, but they don’t contain any RNA or DNA that could confer the risk of any diseases or cancer,” she added.

According to Waibel, who is also subsection chief of dermatology at Baptist Hospital and past medical director of the Miami Cancer Institute’s Multidisciplinary Skin Cancer Clinic, genetic analysis of the axolotl revealed genes that have not been seen in humans. The urodele collagen extract also has anti-inflammatory and analgesic properties. “It decreases TNF [tumor necrosis factor] and IL [interleukin]–23 and stimulates regenerative pathways like FETUB (Fetuin-B), which is a gene involved in tissue regeneration,” she said. “We’re exploring these for some products.”

Institutional Review Board–approved human clinical trials at three US sites are nearly complete for evaluating an antiaging hydrating daily serum, an antiaging serum for damaged skin, and a restorative serum to be applied following cosmetic procedures, all containing the extract. The product furthest along is a “super gel” that contains properties of the urodele collagen extract.

In a proof-of-concept study using a third-degree burn model in two pigs, Waibel and colleagues at the University of Miami, found that 3 days after the injury was induced, application of the gel led to 92% reepithelialization of the pig’s skin, compared with only 54% in untreated skin.

Shortly after this study was conducted, a burn patient was referred to Waibel — 4 years after he was struck by lightning while fishing on a boat in Mississippi, an accident that resulted in the loss of his right arm and both legs. During a telemedicine consultation, Waibel noticed open ulcers on his chest. “What are those from?” she asked. “They’re from my accident 4 years ago,” he replied. 

After the man flew to Miami for an in-person evaluation, Waibel treated his ulcers with a fractional laser to debride the wound, then applied the gel as part of a proof-of-concept approach, testing its potential in a real-world patient setting. Within 3 weeks, the long-standing ulcerated area had healed completely, marking the first time a human was treated with the super gel.

Looking ahead, the million-dollar question, Waibel noted, is how much healing can be achieved in humans with formulations of axolotl-derived technology. “For example, can we help a spinal cord injury patient? That sounds like a science fiction movie, but there are proteins in genes in this animal that we have turned off that potentially can be turned on in a human,” she said. “It’s very exciting.”

 

Arisa E. Ortiz, MD, director of Laser and Cosmetic Dermatology at the University of California, San Diego, and current president of the American Society for Laser Medicine and Surgery, who was asked to comment on this work, said that the use of urodele collagen extract derived from axolotl tissue “is an exciting innovation, especially given its unique properties like scarless healing and antimicrobial activity.” 

While the results from preclinical and proof-of-concept studies are promising, “a key limitation lies in understanding the extent to which these findings will translate to human applications,” Ortiz said. “Overall, this research contributes significantly to the fields of regenerative medicine and dermatology, offering hope for more effective treatments in the future.” 

 

Christine Ko, MD, professor of dermatology and pathology at Yale University, New Haven, Connecticut, who was also asked to provide her insights on the topic, said that, if researchers could replicate the axolotl salamander’s ability to regenerate its own limbs and organs, “medicine would be transformed. Rather than transplant another person’s organ with lifelong immunosuppression, a regenerative treatment could program a patient’s own body to create a needed organ. 

“On a simpler level,” she continued, “regenerating skin and its underlying structures could hasten wound healing and potentially even treat hair loss. This is not a pipe dream, as Waibel has successfully treated severe ulcers using a super gel containing urodele collagen extract. Urodele collagen is type XII collagen, important in the salamander’s capacity to heal and regenerate.”

Waibel disclosed that she is a scientific adviser to RegenX and is a member of the company’s board of directors. Ortiz and Ko reported having no relevant disclosures.

A version of this article first appeared on Medscape.com.

For over 200 years, researchers have been captivated by axolotl salamanders (Ambystoma mexicanum) and their remarkable regenerative abilities, seeking to uncover secrets that could revolutionize regenerative medicine, including the scarless healing of wounds.

“The axolotl salamander is the most studied animal ever in science for its neotenic ability to regenerate,” Jill S. Waibel, MD, dermatologist and researcher in Miami, Florida, said in an interview. Neotenic tissue retains a juvenile or immature state throughout an organism’s life. In the case of the axolotl, “it can regenerate limbs, part of its heart, even its brain.”

 

A 2019 review of several studies on the regenerative abilities of axolotls highlights the importance of gene activity in controlling its skin regeneration. Specifically, growth factors such as fibroblast growth factors, transforming growth factor beta, and Wnt play a key role in guiding how the creature’s skin cells behave during healing and regrowth. The immune response , particularly the actions of macrophages and neutrophils, is also crucial in the early stages of regeneration, as these cells clear away dead tissue and kickstart the healing process.

After studying the axolotl for the past 8 years, including mapping its genetic makeup, Waibel and researchers at RegenX Science are developing a line of cosmeceutical and over-the-counter products containing urodele collagen extract derived from the creature’s neotenic tissue, without harming the animal. In axolotls, Waibel explained, damaged neotenic tissue “still thinks it’s in fetal mode, so if it injures its muscle, bone, nerves, collagen, or skin, everything will redevelop. After a few months in utero, that process stops in humans, but it never stops in the axolotl. The axolotl has scarless healing and immunity because of antimicrobial properties found in the neotenic tissue.”

RegenX scientists have developed a proprietary decellularization process that renders the urodele collagen extract safe and effective for use in humans. “We then harnessed a reservoir of bioactive peptides, which are small proteins that come from the axolotl, but they don’t contain any RNA or DNA that could confer the risk of any diseases or cancer,” she added.

According to Waibel, who is also subsection chief of dermatology at Baptist Hospital and past medical director of the Miami Cancer Institute’s Multidisciplinary Skin Cancer Clinic, genetic analysis of the axolotl revealed genes that have not been seen in humans. The urodele collagen extract also has anti-inflammatory and analgesic properties. “It decreases TNF [tumor necrosis factor] and IL [interleukin]–23 and stimulates regenerative pathways like FETUB (Fetuin-B), which is a gene involved in tissue regeneration,” she said. “We’re exploring these for some products.”

Institutional Review Board–approved human clinical trials at three US sites are nearly complete for evaluating an antiaging hydrating daily serum, an antiaging serum for damaged skin, and a restorative serum to be applied following cosmetic procedures, all containing the extract. The product furthest along is a “super gel” that contains properties of the urodele collagen extract.

In a proof-of-concept study using a third-degree burn model in two pigs, Waibel and colleagues at the University of Miami, found that 3 days after the injury was induced, application of the gel led to 92% reepithelialization of the pig’s skin, compared with only 54% in untreated skin.

Shortly after this study was conducted, a burn patient was referred to Waibel — 4 years after he was struck by lightning while fishing on a boat in Mississippi, an accident that resulted in the loss of his right arm and both legs. During a telemedicine consultation, Waibel noticed open ulcers on his chest. “What are those from?” she asked. “They’re from my accident 4 years ago,” he replied. 

After the man flew to Miami for an in-person evaluation, Waibel treated his ulcers with a fractional laser to debride the wound, then applied the gel as part of a proof-of-concept approach, testing its potential in a real-world patient setting. Within 3 weeks, the long-standing ulcerated area had healed completely, marking the first time a human was treated with the super gel.

Looking ahead, the million-dollar question, Waibel noted, is how much healing can be achieved in humans with formulations of axolotl-derived technology. “For example, can we help a spinal cord injury patient? That sounds like a science fiction movie, but there are proteins in genes in this animal that we have turned off that potentially can be turned on in a human,” she said. “It’s very exciting.”

 

Arisa E. Ortiz, MD, director of Laser and Cosmetic Dermatology at the University of California, San Diego, and current president of the American Society for Laser Medicine and Surgery, who was asked to comment on this work, said that the use of urodele collagen extract derived from axolotl tissue “is an exciting innovation, especially given its unique properties like scarless healing and antimicrobial activity.” 

While the results from preclinical and proof-of-concept studies are promising, “a key limitation lies in understanding the extent to which these findings will translate to human applications,” Ortiz said. “Overall, this research contributes significantly to the fields of regenerative medicine and dermatology, offering hope for more effective treatments in the future.” 

 

Christine Ko, MD, professor of dermatology and pathology at Yale University, New Haven, Connecticut, who was also asked to provide her insights on the topic, said that, if researchers could replicate the axolotl salamander’s ability to regenerate its own limbs and organs, “medicine would be transformed. Rather than transplant another person’s organ with lifelong immunosuppression, a regenerative treatment could program a patient’s own body to create a needed organ. 

“On a simpler level,” she continued, “regenerating skin and its underlying structures could hasten wound healing and potentially even treat hair loss. This is not a pipe dream, as Waibel has successfully treated severe ulcers using a super gel containing urodele collagen extract. Urodele collagen is type XII collagen, important in the salamander’s capacity to heal and regenerate.”

Waibel disclosed that she is a scientific adviser to RegenX and is a member of the company’s board of directors. Ortiz and Ko reported having no relevant disclosures.

A version of this article first appeared on Medscape.com.

Laura Vater remembers sneaking into her home after 12-hour night shifts during medical training while her husband distracted their toddler. The stealthy tag-teaming effort helped her get enough undisturbed sleep before returning to an Indiana University hospital the following night to repeat the pattern.

“He would pretend to take out the trash when I pulled in,” said Vater, MD, now a gastrointestinal oncologist and assistant professor of medicine at IU Health Simon Cancer Center in Indianapolis. “I would sneak in so she [their daughter] wouldn’t see me, and then he would go back in.”

For Vater, prioritizing sleep during the day to combat sleep deprivation common among doctors-in-training on night shifts required enlisting a supportive spouse. It’s just one of the tips she and a few chief residents shared with this news organization for staying sharp and healthy during overnight rotations.

While the pace of patient rounds may slow from the frenetic daytime rush, training as a doctor after the sun goes down can be quite challenging for residents, they told this news organization. From sleep deprivation working while the rest of us slumbers to the after-effects of late-night caffeine, learning to manage night rotations requires a balance of preparation and attention to personal health while caring for others, the residents and adviser said.

Compromised sleep is one of the biggest hurdles residents have to overcome. Sleep loss comes with risks to cardiovascular disease and type 2 diabetes, among other heath conditions, according to Medscape Medical News reports. And night shift workers  who sleep 6 or fewer hours a night have at least one sleep disorder.

Sleep deprivation associated with overnight call schedules also can worsen a resident’s mood and motivation while impairing their judgment, leading to medical errors, according to a new study published in JAMA Open Network. The study proposed shorter consecutive night shifts and naps as ways to offset the results of sleep loss, especially for interns or first-year residents. 

Residency programs recently have been experimenting with shorter call schedules.

 

Catching Zzs

Working the night shift demands a disciplined sleep schedule, said Nat deQuillfeldt, MD, a Denver Health chief resident in the University of Colorado’s internal medicine residency program.

“When I was on night admissions, I was very strict about going to sleep at 8 AM and waking at 3 PM every single day. It can be very tempting to try to stay up and spend time with loved ones, but my husband and I both prioritized my physical well-being for those weeks,” said deQuillfeldt, a PGY-4 resident. “It was especially challenging for me because I had to commute about 50 minutes each way and without such a rigid schedule I would have struggled to be on time.”

deQuillfeldt doesn’t have young children at home, a noisy community, or other distractions to interrupt sleep during the day. But it was still difficult for her to sleep while the sun was out. “I used an eye mask and ear plugs but definitely woke up more often than I would at night.”

Blackout curtains may have helped, she added.

“Without adequate sleep, your clinical thinking is not as sharp. When emergencies happen overnight, you’re often the first person to arrive and need to be able to make rapid, accurate assessments and decisions.”

As a chief resident, she chooses never to sleep during night shifts.

“I personally didn’t want to leave my interns alone or make them feel like they were waking me up or bothering me if they needed help, and I also didn’t want to be groggy in case of a rapid response or code blue.”

But napping on night shift is definitely possible, deQuillfeldt said. Between following up on overnight lab results, answering nurses’ questions, and responding to emergencies, she found downtime on night shift to eat and hydrate. She believes others can catch an hour or 2 of shut eye, even if they work in the intensive care unit, or 3-4 hours on rare quiet nights.

Vater suggests residents transitioning from daytime work to night shift prepare by trying to catch an afternoon nap, staying up later the night before the change, and banking sleep hours in advance.

When he knows he’s starting night shifts, Apurva Popat, MD, said he tries to go to sleep an hour or so later nights before to avoid becoming sleep deprived. The chief resident of internal medicine at Marshfield Clinic Health System in Marshfield, Wisconsin, doesn’t recommend sleeping during the night shift.

“I typically try not to sleep, even if I have time, so I can go home and sleep later in the morning,” said Popat, a PGY-3 resident.

To help him snooze, he uses blackout curtains and a fan to block out noise. His wife, a first-year internal medicine intern, often works a different shift, so she helps set up his sleeping environment and he reciprocates when it’s her turn for night shifts.

Some interns may need to catch a 20- to 30-minute nap on the first night shift, he said.

Popat also seeks out brighter areas of the hospital, such as the emergency department, where there are more people and colleagues to keep him alert.

 

Bypass Vending Machines

Lack of sleep makes it even more difficult to eat healthy on night shift, said Vater, who advises residents about wellness issues at IU and on social media.

“When you are sleep deprived, when you do not get enough sleep, you eat but you don’t feel full,” she said. “It’s hard to eat well on night shift. It’s harder if you go to the break room and there’s candy and junk food.”

Vater said that, as a resident, she brought a lunch bag to the hospital during night shifts. “I never had time to prep food, so I’d bring a whole apple, a whole orange, a whole avocado or nuts. It allowed me to eat more fruits and vegetables than I normally would.”

She advises caution when considering coffee to stay awake, especially after about 9 PM, which could interfere with sleep residents need later when they finish their shifts. Caffeine may help in the moment, but it prevents deep sleep, Vater said. So when residents finally get sleep after their shifts, they may wake up feeling tired, she said.

To avoid sleepiness, Popat brings protein shakes with him to night shifts. They stave off sugar spikes and keep his energy level high, he said. He might have a protein shake and fruit before he leaves home and carry his vegetarian dinner with him to eat in the early morning hours when the hospital is calm.

Eating small and frequent meals also helps ward off sleepiness, deQuillfeldt said.

 

Take the Stairs

Trying to stay healthy on night shifts, Vater also checked on patients by taking the stairs. “I’d set the timer on my phone for 30 minutes and if I got paged at 15, I’d pause the timer and reset it if I had a moment later. I’d get at least 30 minutes in, although not always continuous. I think some activity is better than none.”

Vater said her hospital had a gym, but it wasn’t practical for her because it was further away from where she worked. “Sometimes my coresidents would be more creative, and we would do squats.”

Popat tries to lift weights 2 hours before his night shift, but he also takes short walks between patients’ rooms in the early morning hours when it’s quietest. He also promotes deep breathing to stay alert.

 

Ask for a Ride

Vater urges those coming off night shifts, especially those transitioning for the first time from daytime rotations, not to drive if they’re exhausted. “Get an Uber. ... Make sure you get a ride home.”

The CU residency program covers the cost of a ridesharing service when doctors-in-training are too tired to drive home, deQuillfeldt said. “We really try to encourage people to use this to reduce the risk of car accidents.”

 

Promoting Mental Health

The residency program also links residents with primary care and mental health services. People who really struggle with shift work sleep disorder may qualify for medications to help them stay awake overnight, in addition to sleep hygiene apps and sleep aides.

“Night shifts can put a strain on mental health, especially when you’re only working, eating, and sleeping and not spending any time with family and friends,” deQuillfeldt said. “My husband works late afternoons, so we often would go weeks seeing each other for 15-20 minutes a day.”

“Sleeping when the sun is out often leads to a lack of light exposure which can compound the problem. Seeking mental health support early is really important to avoiding burnout,” she said.

She also recommended planning a fun weekend activity, trip, or celebration with friends or family after night shifts end “so you have something to look forward to…It’s so important to have a light at the end of the tunnel, which will allow you to enjoy the sense of accomplishment even more.”

For more advice on the subject, consider the American Medical Association guide to managing sleep deprivation in residency or Laura Vater’s tips for night shifts.

A version of this article first appeared on Medscape.com.

Laura Vater remembers sneaking into her home after 12-hour night shifts during medical training while her husband distracted their toddler. The stealthy tag-teaming effort helped her get enough undisturbed sleep before returning to an Indiana University hospital the following night to repeat the pattern.

“He would pretend to take out the trash when I pulled in,” said Vater, MD, now a gastrointestinal oncologist and assistant professor of medicine at IU Health Simon Cancer Center in Indianapolis. “I would sneak in so she [their daughter] wouldn’t see me, and then he would go back in.”

For Vater, prioritizing sleep during the day to combat sleep deprivation common among doctors-in-training on night shifts required enlisting a supportive spouse. It’s just one of the tips she and a few chief residents shared with this news organization for staying sharp and healthy during overnight rotations.

While the pace of patient rounds may slow from the frenetic daytime rush, training as a doctor after the sun goes down can be quite challenging for residents, they told this news organization. From sleep deprivation working while the rest of us slumbers to the after-effects of late-night caffeine, learning to manage night rotations requires a balance of preparation and attention to personal health while caring for others, the residents and adviser said.

Compromised sleep is one of the biggest hurdles residents have to overcome. Sleep loss comes with risks to cardiovascular disease and type 2 diabetes, among other heath conditions, according to Medscape Medical News reports. And night shift workers  who sleep 6 or fewer hours a night have at least one sleep disorder.

Sleep deprivation associated with overnight call schedules also can worsen a resident’s mood and motivation while impairing their judgment, leading to medical errors, according to a new study published in JAMA Open Network. The study proposed shorter consecutive night shifts and naps as ways to offset the results of sleep loss, especially for interns or first-year residents. 

Residency programs recently have been experimenting with shorter call schedules.

 

Catching Zzs

Working the night shift demands a disciplined sleep schedule, said Nat deQuillfeldt, MD, a Denver Health chief resident in the University of Colorado’s internal medicine residency program.

“When I was on night admissions, I was very strict about going to sleep at 8 AM and waking at 3 PM every single day. It can be very tempting to try to stay up and spend time with loved ones, but my husband and I both prioritized my physical well-being for those weeks,” said deQuillfeldt, a PGY-4 resident. “It was especially challenging for me because I had to commute about 50 minutes each way and without such a rigid schedule I would have struggled to be on time.”

deQuillfeldt doesn’t have young children at home, a noisy community, or other distractions to interrupt sleep during the day. But it was still difficult for her to sleep while the sun was out. “I used an eye mask and ear plugs but definitely woke up more often than I would at night.”

Blackout curtains may have helped, she added.

“Without adequate sleep, your clinical thinking is not as sharp. When emergencies happen overnight, you’re often the first person to arrive and need to be able to make rapid, accurate assessments and decisions.”

As a chief resident, she chooses never to sleep during night shifts.

“I personally didn’t want to leave my interns alone or make them feel like they were waking me up or bothering me if they needed help, and I also didn’t want to be groggy in case of a rapid response or code blue.”

But napping on night shift is definitely possible, deQuillfeldt said. Between following up on overnight lab results, answering nurses’ questions, and responding to emergencies, she found downtime on night shift to eat and hydrate. She believes others can catch an hour or 2 of shut eye, even if they work in the intensive care unit, or 3-4 hours on rare quiet nights.

Vater suggests residents transitioning from daytime work to night shift prepare by trying to catch an afternoon nap, staying up later the night before the change, and banking sleep hours in advance.

When he knows he’s starting night shifts, Apurva Popat, MD, said he tries to go to sleep an hour or so later nights before to avoid becoming sleep deprived. The chief resident of internal medicine at Marshfield Clinic Health System in Marshfield, Wisconsin, doesn’t recommend sleeping during the night shift.

“I typically try not to sleep, even if I have time, so I can go home and sleep later in the morning,” said Popat, a PGY-3 resident.

To help him snooze, he uses blackout curtains and a fan to block out noise. His wife, a first-year internal medicine intern, often works a different shift, so she helps set up his sleeping environment and he reciprocates when it’s her turn for night shifts.

Some interns may need to catch a 20- to 30-minute nap on the first night shift, he said.

Popat also seeks out brighter areas of the hospital, such as the emergency department, where there are more people and colleagues to keep him alert.

 

Bypass Vending Machines

Lack of sleep makes it even more difficult to eat healthy on night shift, said Vater, who advises residents about wellness issues at IU and on social media.

“When you are sleep deprived, when you do not get enough sleep, you eat but you don’t feel full,” she said. “It’s hard to eat well on night shift. It’s harder if you go to the break room and there’s candy and junk food.”

Vater said that, as a resident, she brought a lunch bag to the hospital during night shifts. “I never had time to prep food, so I’d bring a whole apple, a whole orange, a whole avocado or nuts. It allowed me to eat more fruits and vegetables than I normally would.”

She advises caution when considering coffee to stay awake, especially after about 9 PM, which could interfere with sleep residents need later when they finish their shifts. Caffeine may help in the moment, but it prevents deep sleep, Vater said. So when residents finally get sleep after their shifts, they may wake up feeling tired, she said.

To avoid sleepiness, Popat brings protein shakes with him to night shifts. They stave off sugar spikes and keep his energy level high, he said. He might have a protein shake and fruit before he leaves home and carry his vegetarian dinner with him to eat in the early morning hours when the hospital is calm.

Eating small and frequent meals also helps ward off sleepiness, deQuillfeldt said.

 

Take the Stairs

Trying to stay healthy on night shifts, Vater also checked on patients by taking the stairs. “I’d set the timer on my phone for 30 minutes and if I got paged at 15, I’d pause the timer and reset it if I had a moment later. I’d get at least 30 minutes in, although not always continuous. I think some activity is better than none.”

Vater said her hospital had a gym, but it wasn’t practical for her because it was further away from where she worked. “Sometimes my coresidents would be more creative, and we would do squats.”

Popat tries to lift weights 2 hours before his night shift, but he also takes short walks between patients’ rooms in the early morning hours when it’s quietest. He also promotes deep breathing to stay alert.

 

Ask for a Ride

Vater urges those coming off night shifts, especially those transitioning for the first time from daytime rotations, not to drive if they’re exhausted. “Get an Uber. ... Make sure you get a ride home.”

The CU residency program covers the cost of a ridesharing service when doctors-in-training are too tired to drive home, deQuillfeldt said. “We really try to encourage people to use this to reduce the risk of car accidents.”

 

Promoting Mental Health

The residency program also links residents with primary care and mental health services. People who really struggle with shift work sleep disorder may qualify for medications to help them stay awake overnight, in addition to sleep hygiene apps and sleep aides.

“Night shifts can put a strain on mental health, especially when you’re only working, eating, and sleeping and not spending any time with family and friends,” deQuillfeldt said. “My husband works late afternoons, so we often would go weeks seeing each other for 15-20 minutes a day.”

“Sleeping when the sun is out often leads to a lack of light exposure which can compound the problem. Seeking mental health support early is really important to avoiding burnout,” she said.

She also recommended planning a fun weekend activity, trip, or celebration with friends or family after night shifts end “so you have something to look forward to…It’s so important to have a light at the end of the tunnel, which will allow you to enjoy the sense of accomplishment even more.”

For more advice on the subject, consider the American Medical Association guide to managing sleep deprivation in residency or Laura Vater’s tips for night shifts.

A version of this article first appeared on Medscape.com.

Laura Vater remembers sneaking into her home after 12-hour night shifts during medical training while her husband distracted their toddler. The stealthy tag-teaming effort helped her get enough undisturbed sleep before returning to an Indiana University hospital the following night to repeat the pattern.

“He would pretend to take out the trash when I pulled in,” said Vater, MD, now a gastrointestinal oncologist and assistant professor of medicine at IU Health Simon Cancer Center in Indianapolis. “I would sneak in so she [their daughter] wouldn’t see me, and then he would go back in.”

For Vater, prioritizing sleep during the day to combat sleep deprivation common among doctors-in-training on night shifts required enlisting a supportive spouse. It’s just one of the tips she and a few chief residents shared with this news organization for staying sharp and healthy during overnight rotations.

While the pace of patient rounds may slow from the frenetic daytime rush, training as a doctor after the sun goes down can be quite challenging for residents, they told this news organization. From sleep deprivation working while the rest of us slumbers to the after-effects of late-night caffeine, learning to manage night rotations requires a balance of preparation and attention to personal health while caring for others, the residents and adviser said.

Compromised sleep is one of the biggest hurdles residents have to overcome. Sleep loss comes with risks to cardiovascular disease and type 2 diabetes, among other heath conditions, according to Medscape Medical News reports. And night shift workers  who sleep 6 or fewer hours a night have at least one sleep disorder.

Sleep deprivation associated with overnight call schedules also can worsen a resident’s mood and motivation while impairing their judgment, leading to medical errors, according to a new study published in JAMA Open Network. The study proposed shorter consecutive night shifts and naps as ways to offset the results of sleep loss, especially for interns or first-year residents. 

Residency programs recently have been experimenting with shorter call schedules.

 

Catching Zzs

Working the night shift demands a disciplined sleep schedule, said Nat deQuillfeldt, MD, a Denver Health chief resident in the University of Colorado’s internal medicine residency program.

“When I was on night admissions, I was very strict about going to sleep at 8 AM and waking at 3 PM every single day. It can be very tempting to try to stay up and spend time with loved ones, but my husband and I both prioritized my physical well-being for those weeks,” said deQuillfeldt, a PGY-4 resident. “It was especially challenging for me because I had to commute about 50 minutes each way and without such a rigid schedule I would have struggled to be on time.”

deQuillfeldt doesn’t have young children at home, a noisy community, or other distractions to interrupt sleep during the day. But it was still difficult for her to sleep while the sun was out. “I used an eye mask and ear plugs but definitely woke up more often than I would at night.”

Blackout curtains may have helped, she added.

“Without adequate sleep, your clinical thinking is not as sharp. When emergencies happen overnight, you’re often the first person to arrive and need to be able to make rapid, accurate assessments and decisions.”

As a chief resident, she chooses never to sleep during night shifts.

“I personally didn’t want to leave my interns alone or make them feel like they were waking me up or bothering me if they needed help, and I also didn’t want to be groggy in case of a rapid response or code blue.”

But napping on night shift is definitely possible, deQuillfeldt said. Between following up on overnight lab results, answering nurses’ questions, and responding to emergencies, she found downtime on night shift to eat and hydrate. She believes others can catch an hour or 2 of shut eye, even if they work in the intensive care unit, or 3-4 hours on rare quiet nights.

Vater suggests residents transitioning from daytime work to night shift prepare by trying to catch an afternoon nap, staying up later the night before the change, and banking sleep hours in advance.

When he knows he’s starting night shifts, Apurva Popat, MD, said he tries to go to sleep an hour or so later nights before to avoid becoming sleep deprived. The chief resident of internal medicine at Marshfield Clinic Health System in Marshfield, Wisconsin, doesn’t recommend sleeping during the night shift.

“I typically try not to sleep, even if I have time, so I can go home and sleep later in the morning,” said Popat, a PGY-3 resident.

To help him snooze, he uses blackout curtains and a fan to block out noise. His wife, a first-year internal medicine intern, often works a different shift, so she helps set up his sleeping environment and he reciprocates when it’s her turn for night shifts.

Some interns may need to catch a 20- to 30-minute nap on the first night shift, he said.

Popat also seeks out brighter areas of the hospital, such as the emergency department, where there are more people and colleagues to keep him alert.

 

Bypass Vending Machines

Lack of sleep makes it even more difficult to eat healthy on night shift, said Vater, who advises residents about wellness issues at IU and on social media.

“When you are sleep deprived, when you do not get enough sleep, you eat but you don’t feel full,” she said. “It’s hard to eat well on night shift. It’s harder if you go to the break room and there’s candy and junk food.”

Vater said that, as a resident, she brought a lunch bag to the hospital during night shifts. “I never had time to prep food, so I’d bring a whole apple, a whole orange, a whole avocado or nuts. It allowed me to eat more fruits and vegetables than I normally would.”

She advises caution when considering coffee to stay awake, especially after about 9 PM, which could interfere with sleep residents need later when they finish their shifts. Caffeine may help in the moment, but it prevents deep sleep, Vater said. So when residents finally get sleep after their shifts, they may wake up feeling tired, she said.

To avoid sleepiness, Popat brings protein shakes with him to night shifts. They stave off sugar spikes and keep his energy level high, he said. He might have a protein shake and fruit before he leaves home and carry his vegetarian dinner with him to eat in the early morning hours when the hospital is calm.

Eating small and frequent meals also helps ward off sleepiness, deQuillfeldt said.

 

Take the Stairs

Trying to stay healthy on night shifts, Vater also checked on patients by taking the stairs. “I’d set the timer on my phone for 30 minutes and if I got paged at 15, I’d pause the timer and reset it if I had a moment later. I’d get at least 30 minutes in, although not always continuous. I think some activity is better than none.”

Vater said her hospital had a gym, but it wasn’t practical for her because it was further away from where she worked. “Sometimes my coresidents would be more creative, and we would do squats.”

Popat tries to lift weights 2 hours before his night shift, but he also takes short walks between patients’ rooms in the early morning hours when it’s quietest. He also promotes deep breathing to stay alert.

 

Ask for a Ride

Vater urges those coming off night shifts, especially those transitioning for the first time from daytime rotations, not to drive if they’re exhausted. “Get an Uber. ... Make sure you get a ride home.”

The CU residency program covers the cost of a ridesharing service when doctors-in-training are too tired to drive home, deQuillfeldt said. “We really try to encourage people to use this to reduce the risk of car accidents.”

 

Promoting Mental Health

The residency program also links residents with primary care and mental health services. People who really struggle with shift work sleep disorder may qualify for medications to help them stay awake overnight, in addition to sleep hygiene apps and sleep aides.

“Night shifts can put a strain on mental health, especially when you’re only working, eating, and sleeping and not spending any time with family and friends,” deQuillfeldt said. “My husband works late afternoons, so we often would go weeks seeing each other for 15-20 minutes a day.”

“Sleeping when the sun is out often leads to a lack of light exposure which can compound the problem. Seeking mental health support early is really important to avoiding burnout,” she said.

She also recommended planning a fun weekend activity, trip, or celebration with friends or family after night shifts end “so you have something to look forward to…It’s so important to have a light at the end of the tunnel, which will allow you to enjoy the sense of accomplishment even more.”

For more advice on the subject, consider the American Medical Association guide to managing sleep deprivation in residency or Laura Vater’s tips for night shifts.

A version of this article first appeared on Medscape.com.

While fewer than 10% of US physicians are unionized, the number of official union drives among private-sector doctors have skyrocketed in the last 2 years, compared with 2 decades prior, according to a new study. 

Researchers counted 21 union drives in 2023 and 12 in the first 5 months of 2024, compared with 0-6 drives each year between 2000 and 2022. 

If the 2023 and 2024 drives succeed, unions will represent 3523 new physicians — nearly equal to the 3541 doctors who sought unionization between 2000 and 2022.

“We were able to document a significant uptick in union petitions and success in certification drives,” said corresponding author Hayden Rooke-Ley, JD, of the Center for Advancing Health Policy Through Research, Brown University School of Public Health, Providence, Rhode Island. “We were surprised to see such a marked shift in 2023.”

About 72,000 physicians, an estimated 8% of all US doctors, are covered by unions, including some in the public sector. Physicians who are self-employed, now comprising less than a fifth of all doctors, are not eligible to join labor unions.

The study authors launched their research to better understand trends in physician unionization in light of high-profile union drives, especially among residents. Rooke-Ley said: “We suspected that declining morale and increased corporate employment for physicians were leading them to consider unionization.”

The researchers gathered data from the National Labor Relations Board about union drives by potential bargaining units that included physicians. From 2000 to 2022, 44 union petitions were filed. The number jumped to 33 from 2023-2024. 

 

“Tip of the Iceberg”

“This is the tip of the iceberg,” said ethicist Joseph F. Kras, MD, DDS, MA, an associate professor of anesthesiology at Washington University in St. Louis, Missouri, and corresponding author of a recent Anesthesia & Analgesia report about physician unionization.

“We are independent by nature,” Kras said. “But when you put us in an employed environment and start treating us as widgets, then we will act like employees of Amazon, Starbucks, and other companies and join together to push back against the increasing emphasis on profit over all at the expense of our independent judgment on what’s best for the patient.”

Of the 66 unionization efforts between 2000 and 2024 that were decided, 62% were certified, according to the JAMA study. The drives targeted hospitals (49%), community health centers (38%), and nonhospital corporate owners (13%).

The researchers only analyzed private-sector unionization and did not include physicians who are unionized at public institutions. 

 

What’s Behind Union Drives?

Alyssa Burgart, MD, MA, an ethicist and clinical associate professor of anesthesiology and pediatrics at Stanford University in California, told this news organization that physician unionization “is a big topic with a lot of really strong opinions.” 

Many doctors wrongly assume they can’t unionize because they’re physicians, said Burgart, a coauthor of the Anesthesia & Analgesia report.

Supporters of unionization believe it’s a strategy to be “recognized not as simply as a single physician with a concern,” she said. “When you’re among clinicians who can speak as a more unified group, organizations are more likely to take that seriously.”

A union may also be able to hold employers to account in areas such as the gender wage gap, sexual harassment, and bias in hiring and firing, Burgart said. And union supporters believe they’ll make more money if they collectively bargain. 

Other factors driving interest in unions include “increasing physician burnout, increasing physician exhaustion, and immense frustration with the ways that private equity is influencing how physicians need to work in order to practice,” she said. 

Earlier in 2024, physicians in Delaware’s ChristianaCare health system voted 288-130 to be represented by Doctors Council/Service Employees International, according to the union. 

“We have still not been able to staff up enough to where us physicians can get back to just focusing on taking care of patients,” a unionization leader told WHYY. 

The JAMA study examined news reports regarding most of the 2023-2024 union drives and found that supporters claimed they were motivated by working conditions (85%), lack of voice in management (81%), patient care concerns (54%), and pay (4%).

 

Critics Worry They’ll Lose Pay Because of Unions

Skeptics of unionization worry about whether “I’m going to be required to stand by some union stance that is actually out of alignment with my values as a physician,” Burgart said. And, she said, critics such as highly paid surgeons fear that adjustments to salaries because of union contracts could cause them to lose income.

In regard to compensation, a 2024 study surveyed unionized residents — along with faculty and staff — at general surgery programs and found evidence that unionization didn’t improve resident well-being or benefits, although it “provided a mechanism for resident voice and agency.”

“It is critical to study the outcomes of those who unionized to ensure that the reasons for unionizing were realized over time,” said that study’s coauthor Karl Bilimoria, MD, MS, chair of surgery at Indiana University School of Medicine, Indianapolis. “The unintended consequences of unionization must be examined along with the potential improvements.”

Rooke-Ley discloses consulting fees from the American Economic Liberties Project, National Academy of State Health Policy, and 32BJ Funds. Kras and Burgart disclose previous union membership. Bilimoria has no disclosures.

A version of this article first appeared on Medscape.com. 

While fewer than 10% of US physicians are unionized, the number of official union drives among private-sector doctors have skyrocketed in the last 2 years, compared with 2 decades prior, according to a new study. 

Researchers counted 21 union drives in 2023 and 12 in the first 5 months of 2024, compared with 0-6 drives each year between 2000 and 2022. 

If the 2023 and 2024 drives succeed, unions will represent 3523 new physicians — nearly equal to the 3541 doctors who sought unionization between 2000 and 2022.

“We were able to document a significant uptick in union petitions and success in certification drives,” said corresponding author Hayden Rooke-Ley, JD, of the Center for Advancing Health Policy Through Research, Brown University School of Public Health, Providence, Rhode Island. “We were surprised to see such a marked shift in 2023.”

About 72,000 physicians, an estimated 8% of all US doctors, are covered by unions, including some in the public sector. Physicians who are self-employed, now comprising less than a fifth of all doctors, are not eligible to join labor unions.

The study authors launched their research to better understand trends in physician unionization in light of high-profile union drives, especially among residents. Rooke-Ley said: “We suspected that declining morale and increased corporate employment for physicians were leading them to consider unionization.”

The researchers gathered data from the National Labor Relations Board about union drives by potential bargaining units that included physicians. From 2000 to 2022, 44 union petitions were filed. The number jumped to 33 from 2023-2024. 

 

“Tip of the Iceberg”

“This is the tip of the iceberg,” said ethicist Joseph F. Kras, MD, DDS, MA, an associate professor of anesthesiology at Washington University in St. Louis, Missouri, and corresponding author of a recent Anesthesia & Analgesia report about physician unionization.

“We are independent by nature,” Kras said. “But when you put us in an employed environment and start treating us as widgets, then we will act like employees of Amazon, Starbucks, and other companies and join together to push back against the increasing emphasis on profit over all at the expense of our independent judgment on what’s best for the patient.”

Of the 66 unionization efforts between 2000 and 2024 that were decided, 62% were certified, according to the JAMA study. The drives targeted hospitals (49%), community health centers (38%), and nonhospital corporate owners (13%).

The researchers only analyzed private-sector unionization and did not include physicians who are unionized at public institutions. 

 

What’s Behind Union Drives?

Alyssa Burgart, MD, MA, an ethicist and clinical associate professor of anesthesiology and pediatrics at Stanford University in California, told this news organization that physician unionization “is a big topic with a lot of really strong opinions.” 

Many doctors wrongly assume they can’t unionize because they’re physicians, said Burgart, a coauthor of the Anesthesia & Analgesia report.

Supporters of unionization believe it’s a strategy to be “recognized not as simply as a single physician with a concern,” she said. “When you’re among clinicians who can speak as a more unified group, organizations are more likely to take that seriously.”

A union may also be able to hold employers to account in areas such as the gender wage gap, sexual harassment, and bias in hiring and firing, Burgart said. And union supporters believe they’ll make more money if they collectively bargain. 

Other factors driving interest in unions include “increasing physician burnout, increasing physician exhaustion, and immense frustration with the ways that private equity is influencing how physicians need to work in order to practice,” she said. 

Earlier in 2024, physicians in Delaware’s ChristianaCare health system voted 288-130 to be represented by Doctors Council/Service Employees International, according to the union. 

“We have still not been able to staff up enough to where us physicians can get back to just focusing on taking care of patients,” a unionization leader told WHYY. 

The JAMA study examined news reports regarding most of the 2023-2024 union drives and found that supporters claimed they were motivated by working conditions (85%), lack of voice in management (81%), patient care concerns (54%), and pay (4%).

 

Critics Worry They’ll Lose Pay Because of Unions

Skeptics of unionization worry about whether “I’m going to be required to stand by some union stance that is actually out of alignment with my values as a physician,” Burgart said. And, she said, critics such as highly paid surgeons fear that adjustments to salaries because of union contracts could cause them to lose income.

In regard to compensation, a 2024 study surveyed unionized residents — along with faculty and staff — at general surgery programs and found evidence that unionization didn’t improve resident well-being or benefits, although it “provided a mechanism for resident voice and agency.”

“It is critical to study the outcomes of those who unionized to ensure that the reasons for unionizing were realized over time,” said that study’s coauthor Karl Bilimoria, MD, MS, chair of surgery at Indiana University School of Medicine, Indianapolis. “The unintended consequences of unionization must be examined along with the potential improvements.”

Rooke-Ley discloses consulting fees from the American Economic Liberties Project, National Academy of State Health Policy, and 32BJ Funds. Kras and Burgart disclose previous union membership. Bilimoria has no disclosures.

A version of this article first appeared on Medscape.com. 

While fewer than 10% of US physicians are unionized, the number of official union drives among private-sector doctors have skyrocketed in the last 2 years, compared with 2 decades prior, according to a new study. 

Researchers counted 21 union drives in 2023 and 12 in the first 5 months of 2024, compared with 0-6 drives each year between 2000 and 2022. 

If the 2023 and 2024 drives succeed, unions will represent 3523 new physicians — nearly equal to the 3541 doctors who sought unionization between 2000 and 2022.

“We were able to document a significant uptick in union petitions and success in certification drives,” said corresponding author Hayden Rooke-Ley, JD, of the Center for Advancing Health Policy Through Research, Brown University School of Public Health, Providence, Rhode Island. “We were surprised to see such a marked shift in 2023.”

About 72,000 physicians, an estimated 8% of all US doctors, are covered by unions, including some in the public sector. Physicians who are self-employed, now comprising less than a fifth of all doctors, are not eligible to join labor unions.

The study authors launched their research to better understand trends in physician unionization in light of high-profile union drives, especially among residents. Rooke-Ley said: “We suspected that declining morale and increased corporate employment for physicians were leading them to consider unionization.”

The researchers gathered data from the National Labor Relations Board about union drives by potential bargaining units that included physicians. From 2000 to 2022, 44 union petitions were filed. The number jumped to 33 from 2023-2024. 

 

“Tip of the Iceberg”

“This is the tip of the iceberg,” said ethicist Joseph F. Kras, MD, DDS, MA, an associate professor of anesthesiology at Washington University in St. Louis, Missouri, and corresponding author of a recent Anesthesia & Analgesia report about physician unionization.

“We are independent by nature,” Kras said. “But when you put us in an employed environment and start treating us as widgets, then we will act like employees of Amazon, Starbucks, and other companies and join together to push back against the increasing emphasis on profit over all at the expense of our independent judgment on what’s best for the patient.”

Of the 66 unionization efforts between 2000 and 2024 that were decided, 62% were certified, according to the JAMA study. The drives targeted hospitals (49%), community health centers (38%), and nonhospital corporate owners (13%).

The researchers only analyzed private-sector unionization and did not include physicians who are unionized at public institutions. 

 

What’s Behind Union Drives?

Alyssa Burgart, MD, MA, an ethicist and clinical associate professor of anesthesiology and pediatrics at Stanford University in California, told this news organization that physician unionization “is a big topic with a lot of really strong opinions.” 

Many doctors wrongly assume they can’t unionize because they’re physicians, said Burgart, a coauthor of the Anesthesia & Analgesia report.

Supporters of unionization believe it’s a strategy to be “recognized not as simply as a single physician with a concern,” she said. “When you’re among clinicians who can speak as a more unified group, organizations are more likely to take that seriously.”

A union may also be able to hold employers to account in areas such as the gender wage gap, sexual harassment, and bias in hiring and firing, Burgart said. And union supporters believe they’ll make more money if they collectively bargain. 

Other factors driving interest in unions include “increasing physician burnout, increasing physician exhaustion, and immense frustration with the ways that private equity is influencing how physicians need to work in order to practice,” she said. 

Earlier in 2024, physicians in Delaware’s ChristianaCare health system voted 288-130 to be represented by Doctors Council/Service Employees International, according to the union. 

“We have still not been able to staff up enough to where us physicians can get back to just focusing on taking care of patients,” a unionization leader told WHYY. 

The JAMA study examined news reports regarding most of the 2023-2024 union drives and found that supporters claimed they were motivated by working conditions (85%), lack of voice in management (81%), patient care concerns (54%), and pay (4%).

 

Critics Worry They’ll Lose Pay Because of Unions

Skeptics of unionization worry about whether “I’m going to be required to stand by some union stance that is actually out of alignment with my values as a physician,” Burgart said. And, she said, critics such as highly paid surgeons fear that adjustments to salaries because of union contracts could cause them to lose income.

In regard to compensation, a 2024 study surveyed unionized residents — along with faculty and staff — at general surgery programs and found evidence that unionization didn’t improve resident well-being or benefits, although it “provided a mechanism for resident voice and agency.”

“It is critical to study the outcomes of those who unionized to ensure that the reasons for unionizing were realized over time,” said that study’s coauthor Karl Bilimoria, MD, MS, chair of surgery at Indiana University School of Medicine, Indianapolis. “The unintended consequences of unionization must be examined along with the potential improvements.”

Rooke-Ley discloses consulting fees from the American Economic Liberties Project, National Academy of State Health Policy, and 32BJ Funds. Kras and Burgart disclose previous union membership. Bilimoria has no disclosures.

A version of this article first appeared on Medscape.com. 

New allergens responsible for contact dermatitis emerge regularly. During the Dermatology Days of Paris 2024 conference, Angèle Soria, MD, PhD, a dermatologist at Tenon Hospital in Paris, France, outlined four major categories driving this trend. Among them are (meth)acrylates found in nail cosmetics used in salons or do-it-yourself false nail kits that can be bought online.

Isothiazolinones

While the prevalence of allergic contact dermatitis remains stable at around 20% of the population, new allergens are introduced due to changes in cosmetic formulations and evolving consumer habits. Recent culprits include methylisothiazolinone (MI), a preservative used in many cosmetics; (meth)acrylates; essential oils; and epoxy resins used in industry and leisure activities.

Around 15 years ago, parabens, commonly used as preservatives in cosmetics, were identified as endocrine disruptors. In response, they were largely replaced by newer preservatives, notably MI. However, this led to a proliferation of allergic contact dermatitis in Europe between 2010 and 2013.

“About 10% of the population that we tested showed allergies to these preservatives, primarily found in cosmetics,” explained Soria. Since 2015, the use of MI in leave-on cosmetics has been prohibited in Europe and its concentration restricted in rinse-off products. However, cosmetics sold online from outside Europe may not comply with these regulations.

MI is also present in water-based paints to prevent mold. “A few years ago, we started seeing patients with facial angioedema, sometimes combined with asthma, caused by these isothiazolinone preservatives, including in patients who are not professional painters,” said Soria. More recently, attention has shifted to MI’s presence in household cleaning products. A 2020 Spanish study found MI in 76% of 34 analyzed cleaning products.

MI-based fungicides are also used to treat leather during transport, which can lead to contact allergies among professionals and consumers alike. Additionally, MI has been identified in children’s toys, including slime gels, and in florists’ gel cubes used to preserve flowers.

“We are therefore surrounded by these preservatives, which are no longer only in cosmetics,” warned the dermatologist.

 

(Meth)acrylates

Another major allergen category is (meth)acrylates, responsible for many cases of allergic contact dermatitis. Acrylates and their derivatives are widely used in everyday items. They are low–molecular weight monomers, sensitizing on contact with the skin. Their polymerized forms include materials like Plexiglas.

“We are currently witnessing an epidemic of contact dermatitis in the general population, mainly due to nail cosmetics, such as semipermanent nail polishes and at-home false nail kits,” reported Soria. Nail cosmetics account for 97% of new sensitization cases involving (meth)acrylates. These allergens often cause severe dermatitis, prompting the European Union to mandate labeling in 2020, warning that these products are “for professional use only” and can “cause allergic reactions.”

Beyond nail cosmetics, these allergens are also found in dental products (such as trays), ECG electrodes, prosthetics, glucose sensors, surgical adhesives, and some electronic devices like earbuds and phone screens. Notably, patients sensitized to acrylates via nail kits may experience reactions during dental treatments involving acrylates.

 

Investigating Essential Oil Use

Essential oils, distinct from vegetable oils like almond or argan, are another known allergen. Often considered risk-free due to their “natural” label, these products are widely used topically, orally, or via inhalation for various purposes, such as treating respiratory infections or creating relaxing atmospheres. However, essential oils contain fragrant molecules like terpenes, which can become highly allergenic over time, especially after repeated exposure.

Soria emphasized the importance of asking patients about their use of essential oils, especially tea tree and lavender oils, which are commonly used but rarely mentioned by patients unless prompted.

 

Epoxy Resins in Recreational Use

Epoxy resins are a growing cause of contact allergies, not just in professional settings such as aeronautics and construction work but also increasingly in recreational activities. Soria highlighted the case of a 12-year-old girl hospitalized for severe facial edema after engaging in resin crafts inspired by TikTok. For 6 months, she had been creating resin objects, such as bowls and cutting boards, using vinyl gloves and a Filtering FacePiece 2 mask under adult supervision.

“The growing popularity and online availability of epoxy resins mean that allergic reactions should now be considered even in nonprofessional contexts,” warned Soria.

 

Clinical Approach

When dermatologists suspect allergic contact dermatitis, the first step is to treat the condition with corticosteroid creams. This is followed by a detailed patient interview to identify suspected allergens in products they’ve used.

Patch testing is then conducted to confirm the allergen. Small chambers containing potential allergens are applied to the upper back for 48 hours without removal. Results are read 2-5 days later, with some cases requiring a 7-day follow-up.

The patient’s occupation is an important factor, as certain professions, such as hairdressing, healthcare, or beauty therapy, are known to trigger allergic contact dermatitis. Similarly, certain hobbies may also play a role. 

A thorough approach ensures accurate diagnosis and targeted prevention strategies.

This story was translated from Medscape’s French edition using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

New allergens responsible for contact dermatitis emerge regularly. During the Dermatology Days of Paris 2024 conference, Angèle Soria, MD, PhD, a dermatologist at Tenon Hospital in Paris, France, outlined four major categories driving this trend. Among them are (meth)acrylates found in nail cosmetics used in salons or do-it-yourself false nail kits that can be bought online.

Isothiazolinones

While the prevalence of allergic contact dermatitis remains stable at around 20% of the population, new allergens are introduced due to changes in cosmetic formulations and evolving consumer habits. Recent culprits include methylisothiazolinone (MI), a preservative used in many cosmetics; (meth)acrylates; essential oils; and epoxy resins used in industry and leisure activities.

Around 15 years ago, parabens, commonly used as preservatives in cosmetics, were identified as endocrine disruptors. In response, they were largely replaced by newer preservatives, notably MI. However, this led to a proliferation of allergic contact dermatitis in Europe between 2010 and 2013.

“About 10% of the population that we tested showed allergies to these preservatives, primarily found in cosmetics,” explained Soria. Since 2015, the use of MI in leave-on cosmetics has been prohibited in Europe and its concentration restricted in rinse-off products. However, cosmetics sold online from outside Europe may not comply with these regulations.

MI is also present in water-based paints to prevent mold. “A few years ago, we started seeing patients with facial angioedema, sometimes combined with asthma, caused by these isothiazolinone preservatives, including in patients who are not professional painters,” said Soria. More recently, attention has shifted to MI’s presence in household cleaning products. A 2020 Spanish study found MI in 76% of 34 analyzed cleaning products.

MI-based fungicides are also used to treat leather during transport, which can lead to contact allergies among professionals and consumers alike. Additionally, MI has been identified in children’s toys, including slime gels, and in florists’ gel cubes used to preserve flowers.

“We are therefore surrounded by these preservatives, which are no longer only in cosmetics,” warned the dermatologist.

 

(Meth)acrylates

Another major allergen category is (meth)acrylates, responsible for many cases of allergic contact dermatitis. Acrylates and their derivatives are widely used in everyday items. They are low–molecular weight monomers, sensitizing on contact with the skin. Their polymerized forms include materials like Plexiglas.

“We are currently witnessing an epidemic of contact dermatitis in the general population, mainly due to nail cosmetics, such as semipermanent nail polishes and at-home false nail kits,” reported Soria. Nail cosmetics account for 97% of new sensitization cases involving (meth)acrylates. These allergens often cause severe dermatitis, prompting the European Union to mandate labeling in 2020, warning that these products are “for professional use only” and can “cause allergic reactions.”

Beyond nail cosmetics, these allergens are also found in dental products (such as trays), ECG electrodes, prosthetics, glucose sensors, surgical adhesives, and some electronic devices like earbuds and phone screens. Notably, patients sensitized to acrylates via nail kits may experience reactions during dental treatments involving acrylates.

 

Investigating Essential Oil Use

Essential oils, distinct from vegetable oils like almond or argan, are another known allergen. Often considered risk-free due to their “natural” label, these products are widely used topically, orally, or via inhalation for various purposes, such as treating respiratory infections or creating relaxing atmospheres. However, essential oils contain fragrant molecules like terpenes, which can become highly allergenic over time, especially after repeated exposure.

Soria emphasized the importance of asking patients about their use of essential oils, especially tea tree and lavender oils, which are commonly used but rarely mentioned by patients unless prompted.

 

Epoxy Resins in Recreational Use

Epoxy resins are a growing cause of contact allergies, not just in professional settings such as aeronautics and construction work but also increasingly in recreational activities. Soria highlighted the case of a 12-year-old girl hospitalized for severe facial edema after engaging in resin crafts inspired by TikTok. For 6 months, she had been creating resin objects, such as bowls and cutting boards, using vinyl gloves and a Filtering FacePiece 2 mask under adult supervision.

“The growing popularity and online availability of epoxy resins mean that allergic reactions should now be considered even in nonprofessional contexts,” warned Soria.

 

Clinical Approach

When dermatologists suspect allergic contact dermatitis, the first step is to treat the condition with corticosteroid creams. This is followed by a detailed patient interview to identify suspected allergens in products they’ve used.

Patch testing is then conducted to confirm the allergen. Small chambers containing potential allergens are applied to the upper back for 48 hours without removal. Results are read 2-5 days later, with some cases requiring a 7-day follow-up.

The patient’s occupation is an important factor, as certain professions, such as hairdressing, healthcare, or beauty therapy, are known to trigger allergic contact dermatitis. Similarly, certain hobbies may also play a role. 

A thorough approach ensures accurate diagnosis and targeted prevention strategies.

This story was translated from Medscape’s French edition using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

New allergens responsible for contact dermatitis emerge regularly. During the Dermatology Days of Paris 2024 conference, Angèle Soria, MD, PhD, a dermatologist at Tenon Hospital in Paris, France, outlined four major categories driving this trend. Among them are (meth)acrylates found in nail cosmetics used in salons or do-it-yourself false nail kits that can be bought online.

Isothiazolinones

While the prevalence of allergic contact dermatitis remains stable at around 20% of the population, new allergens are introduced due to changes in cosmetic formulations and evolving consumer habits. Recent culprits include methylisothiazolinone (MI), a preservative used in many cosmetics; (meth)acrylates; essential oils; and epoxy resins used in industry and leisure activities.

Around 15 years ago, parabens, commonly used as preservatives in cosmetics, were identified as endocrine disruptors. In response, they were largely replaced by newer preservatives, notably MI. However, this led to a proliferation of allergic contact dermatitis in Europe between 2010 and 2013.

“About 10% of the population that we tested showed allergies to these preservatives, primarily found in cosmetics,” explained Soria. Since 2015, the use of MI in leave-on cosmetics has been prohibited in Europe and its concentration restricted in rinse-off products. However, cosmetics sold online from outside Europe may not comply with these regulations.

MI is also present in water-based paints to prevent mold. “A few years ago, we started seeing patients with facial angioedema, sometimes combined with asthma, caused by these isothiazolinone preservatives, including in patients who are not professional painters,” said Soria. More recently, attention has shifted to MI’s presence in household cleaning products. A 2020 Spanish study found MI in 76% of 34 analyzed cleaning products.

MI-based fungicides are also used to treat leather during transport, which can lead to contact allergies among professionals and consumers alike. Additionally, MI has been identified in children’s toys, including slime gels, and in florists’ gel cubes used to preserve flowers.

“We are therefore surrounded by these preservatives, which are no longer only in cosmetics,” warned the dermatologist.

 

(Meth)acrylates

Another major allergen category is (meth)acrylates, responsible for many cases of allergic contact dermatitis. Acrylates and their derivatives are widely used in everyday items. They are low–molecular weight monomers, sensitizing on contact with the skin. Their polymerized forms include materials like Plexiglas.

“We are currently witnessing an epidemic of contact dermatitis in the general population, mainly due to nail cosmetics, such as semipermanent nail polishes and at-home false nail kits,” reported Soria. Nail cosmetics account for 97% of new sensitization cases involving (meth)acrylates. These allergens often cause severe dermatitis, prompting the European Union to mandate labeling in 2020, warning that these products are “for professional use only” and can “cause allergic reactions.”

Beyond nail cosmetics, these allergens are also found in dental products (such as trays), ECG electrodes, prosthetics, glucose sensors, surgical adhesives, and some electronic devices like earbuds and phone screens. Notably, patients sensitized to acrylates via nail kits may experience reactions during dental treatments involving acrylates.

 

Investigating Essential Oil Use

Essential oils, distinct from vegetable oils like almond or argan, are another known allergen. Often considered risk-free due to their “natural” label, these products are widely used topically, orally, or via inhalation for various purposes, such as treating respiratory infections or creating relaxing atmospheres. However, essential oils contain fragrant molecules like terpenes, which can become highly allergenic over time, especially after repeated exposure.

Soria emphasized the importance of asking patients about their use of essential oils, especially tea tree and lavender oils, which are commonly used but rarely mentioned by patients unless prompted.

 

Epoxy Resins in Recreational Use

Epoxy resins are a growing cause of contact allergies, not just in professional settings such as aeronautics and construction work but also increasingly in recreational activities. Soria highlighted the case of a 12-year-old girl hospitalized for severe facial edema after engaging in resin crafts inspired by TikTok. For 6 months, she had been creating resin objects, such as bowls and cutting boards, using vinyl gloves and a Filtering FacePiece 2 mask under adult supervision.

“The growing popularity and online availability of epoxy resins mean that allergic reactions should now be considered even in nonprofessional contexts,” warned Soria.

 

Clinical Approach

When dermatologists suspect allergic contact dermatitis, the first step is to treat the condition with corticosteroid creams. This is followed by a detailed patient interview to identify suspected allergens in products they’ve used.

Patch testing is then conducted to confirm the allergen. Small chambers containing potential allergens are applied to the upper back for 48 hours without removal. Results are read 2-5 days later, with some cases requiring a 7-day follow-up.

The patient’s occupation is an important factor, as certain professions, such as hairdressing, healthcare, or beauty therapy, are known to trigger allergic contact dermatitis. Similarly, certain hobbies may also play a role. 

A thorough approach ensures accurate diagnosis and targeted prevention strategies.

This story was translated from Medscape’s French edition using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

TOPLINE:

Survivors of blood or marrow transplant (BMT) face a significant risk of developing cutaneous malignant neoplasms, including basal cell carcinoma (BCC), squamous cell carcinoma (SCC), and melanoma, with a cumulative incidence of 27.4% over 30 years, according to the results of a cohort study.

METHODOLOGY:

• The retrospective cohort study included 3880 BMT survivors (median age, 44 years; 55.8% men; 4.9% Black, 12.1 Hispanic, and 74.7% non-Hispanic White individuals) who underwent transplant between 1974 to 2014.
• Participants completed the BMT Survivor Study survey and were followed up for a median of 9.5 years.
• The primary outcomes were the development of subsequent cutaneous malignant neoplasms (BCC, SCC, or melanoma).

TAKEAWAY:

• The 30-year cumulative incidence of any cutaneous malignant neoplasm was 27.4% — 18% for BCC, 9.8% for SCC, and 3.7% for melanoma.
• A higher risk for skin cancer was reported for patients aged 50 years or more (subdistribution hazard ratio [SHR], 2.23; 95% CI, 1.83-2.71), and men (SHR, 1.40; 95% CI, 1.18-1.65).
• Allogeneic BMT with chronic graft-vs-host disease (cGVHD) increased the risk for skin cancer (SHR, 1.84; 95% CI, 1.37-2.47), compared with autologous BMT, while post-BMT immunosuppression increased risk for all types (overall SHR, 1.53; 95% CI, 1.26-1.86).
• The risk for any skin cancer was significantly lower in Black individuals (SHR, 0.14; 95% CI, 0.05-0.37), Hispanic individuals (SHR, 0.29; 95%CI, 0.20-0.62), and patients of other races or who were multiracial (SHR, 0.22; 95% CI, 0.13-0.37) than in non-Hispanic White patients.

IN PRACTICE:

In the study, “risk factors for post-BMT cutaneous malignant neoplasms included pretransplant treatment with a monoclonal antibody, cGVHD, and posttransplant immunosuppression,” the authors wrote, adding that the findings “could inform targeted surveillance of BMT survivors.” Most BMT survivors, “do not undergo routine dermatologic surveillance, highlighting the need to understand risk factors and incorporate risk-informed dermatologic surveillance into survivorship care plans.”

SOURCE:

The study was led by Kristy K. Broman, MD, MPH, University of Alabama at Birmingham, and was published online on December 18 in JAMA Dermatology.

LIMITATIONS:

Limitations included self-reported data and possible underreporting of melanoma cases in the SEER database. Additionally, the study did not capture other risk factors for cutaneous malignant neoplasms such as skin phototype, ultraviolet light exposure, or family history. The duration of posttransplant immunosuppression was not collected, and surveys were administered at variable intervals, though all were completed more than 2 years post BMT.

DISCLOSURES:

The study was supported by the National Cancer Institute (NCI) and the Leukemia and Lymphoma Society. Broman received grants from NCI, the National Center for Advancing Translational Sciences, the American Society of Clinical Oncology, and the American College of Surgeons. Another author reported receiving grants outside this work.

This article was created using several editorial tools, including artificial intelligence, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Survivors of blood or marrow transplant (BMT) face a significant risk of developing cutaneous malignant neoplasms, including basal cell carcinoma (BCC), squamous cell carcinoma (SCC), and melanoma, with a cumulative incidence of 27.4% over 30 years, according to the results of a cohort study.

METHODOLOGY:

• The retrospective cohort study included 3880 BMT survivors (median age, 44 years; 55.8% men; 4.9% Black, 12.1 Hispanic, and 74.7% non-Hispanic White individuals) who underwent transplant between 1974 to 2014.
• Participants completed the BMT Survivor Study survey and were followed up for a median of 9.5 years.
• The primary outcomes were the development of subsequent cutaneous malignant neoplasms (BCC, SCC, or melanoma).

TAKEAWAY:

• The 30-year cumulative incidence of any cutaneous malignant neoplasm was 27.4% — 18% for BCC, 9.8% for SCC, and 3.7% for melanoma.
• A higher risk for skin cancer was reported for patients aged 50 years or more (subdistribution hazard ratio [SHR], 2.23; 95% CI, 1.83-2.71), and men (SHR, 1.40; 95% CI, 1.18-1.65).
• Allogeneic BMT with chronic graft-vs-host disease (cGVHD) increased the risk for skin cancer (SHR, 1.84; 95% CI, 1.37-2.47), compared with autologous BMT, while post-BMT immunosuppression increased risk for all types (overall SHR, 1.53; 95% CI, 1.26-1.86).
• The risk for any skin cancer was significantly lower in Black individuals (SHR, 0.14; 95% CI, 0.05-0.37), Hispanic individuals (SHR, 0.29; 95%CI, 0.20-0.62), and patients of other races or who were multiracial (SHR, 0.22; 95% CI, 0.13-0.37) than in non-Hispanic White patients.

IN PRACTICE:

In the study, “risk factors for post-BMT cutaneous malignant neoplasms included pretransplant treatment with a monoclonal antibody, cGVHD, and posttransplant immunosuppression,” the authors wrote, adding that the findings “could inform targeted surveillance of BMT survivors.” Most BMT survivors, “do not undergo routine dermatologic surveillance, highlighting the need to understand risk factors and incorporate risk-informed dermatologic surveillance into survivorship care plans.”

SOURCE:

The study was led by Kristy K. Broman, MD, MPH, University of Alabama at Birmingham, and was published online on December 18 in JAMA Dermatology.

LIMITATIONS:

Limitations included self-reported data and possible underreporting of melanoma cases in the SEER database. Additionally, the study did not capture other risk factors for cutaneous malignant neoplasms such as skin phototype, ultraviolet light exposure, or family history. The duration of posttransplant immunosuppression was not collected, and surveys were administered at variable intervals, though all were completed more than 2 years post BMT.

DISCLOSURES:

The study was supported by the National Cancer Institute (NCI) and the Leukemia and Lymphoma Society. Broman received grants from NCI, the National Center for Advancing Translational Sciences, the American Society of Clinical Oncology, and the American College of Surgeons. Another author reported receiving grants outside this work.

This article was created using several editorial tools, including artificial intelligence, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Survivors of blood or marrow transplant (BMT) face a significant risk of developing cutaneous malignant neoplasms, including basal cell carcinoma (BCC), squamous cell carcinoma (SCC), and melanoma, with a cumulative incidence of 27.4% over 30 years, according to the results of a cohort study.

METHODOLOGY:

• The retrospective cohort study included 3880 BMT survivors (median age, 44 years; 55.8% men; 4.9% Black, 12.1 Hispanic, and 74.7% non-Hispanic White individuals) who underwent transplant between 1974 to 2014.
• Participants completed the BMT Survivor Study survey and were followed up for a median of 9.5 years.
• The primary outcomes were the development of subsequent cutaneous malignant neoplasms (BCC, SCC, or melanoma).

TAKEAWAY:

• The 30-year cumulative incidence of any cutaneous malignant neoplasm was 27.4% — 18% for BCC, 9.8% for SCC, and 3.7% for melanoma.
• A higher risk for skin cancer was reported for patients aged 50 years or more (subdistribution hazard ratio [SHR], 2.23; 95% CI, 1.83-2.71), and men (SHR, 1.40; 95% CI, 1.18-1.65).
• Allogeneic BMT with chronic graft-vs-host disease (cGVHD) increased the risk for skin cancer (SHR, 1.84; 95% CI, 1.37-2.47), compared with autologous BMT, while post-BMT immunosuppression increased risk for all types (overall SHR, 1.53; 95% CI, 1.26-1.86).
• The risk for any skin cancer was significantly lower in Black individuals (SHR, 0.14; 95% CI, 0.05-0.37), Hispanic individuals (SHR, 0.29; 95%CI, 0.20-0.62), and patients of other races or who were multiracial (SHR, 0.22; 95% CI, 0.13-0.37) than in non-Hispanic White patients.

IN PRACTICE:

In the study, “risk factors for post-BMT cutaneous malignant neoplasms included pretransplant treatment with a monoclonal antibody, cGVHD, and posttransplant immunosuppression,” the authors wrote, adding that the findings “could inform targeted surveillance of BMT survivors.” Most BMT survivors, “do not undergo routine dermatologic surveillance, highlighting the need to understand risk factors and incorporate risk-informed dermatologic surveillance into survivorship care plans.”

SOURCE:

The study was led by Kristy K. Broman, MD, MPH, University of Alabama at Birmingham, and was published online on December 18 in JAMA Dermatology.

LIMITATIONS:

Limitations included self-reported data and possible underreporting of melanoma cases in the SEER database. Additionally, the study did not capture other risk factors for cutaneous malignant neoplasms such as skin phototype, ultraviolet light exposure, or family history. The duration of posttransplant immunosuppression was not collected, and surveys were administered at variable intervals, though all were completed more than 2 years post BMT.

DISCLOSURES:

The study was supported by the National Cancer Institute (NCI) and the Leukemia and Lymphoma Society. Broman received grants from NCI, the National Center for Advancing Translational Sciences, the American Society of Clinical Oncology, and the American College of Surgeons. Another author reported receiving grants outside this work.

This article was created using several editorial tools, including artificial intelligence, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

The Food and Drug Administration (FDA) has approved ustekinumab-stba (Steqeyma) as a biosimilar to the interleukin-12 and -23 inhibitor ustekinumab (Stelara) for the treatment of adults with active Crohn’s disease or ulcerative colitis and for both children aged ≥ 6 years and adults with moderate to severe plaque psoriasis or active psoriatic arthritis.

This is the seventh ustekinumab biosimilar approved by the FDA. The biosimilar, developed by Celltrion, has a license entry date in February 2025 as part of the settlement and license agreement with the manufacturer of the reference biologic, Johnson & Johnson.

Ustekinumab-stba will be available in two formulations: A subcutaneous injection in two strengths — a 45 mg/0.5 mL or 90 mg/1 mL solution in a single-dose, prefilled syringe — and an intravenous infusion of a 130 mg/26 mL (5 mg/mL) solution in a single-dose vial.

“The approval of Steqeyma reflects Celltrion’s continued investment in providing treatment options to patients diagnosed with ulcerative colitis, Crohn’s disease, psoriasis, and psoriatic arthritis,” said Thomas Nusbickel, Chief Commercial Officer at Celltrion USA, Jersey City, New Jersey, in a press release.

The FDA has previously approved the company’s adalimumab biosimilar Yuflyma and its infliximab biosimilar Zymfentra.

The full prescribing information for ustekinumab-stba is available here.

A version of this article first appeared on Medscape.com. 

The Food and Drug Administration (FDA) has approved ustekinumab-stba (Steqeyma) as a biosimilar to the interleukin-12 and -23 inhibitor ustekinumab (Stelara) for the treatment of adults with active Crohn’s disease or ulcerative colitis and for both children aged ≥ 6 years and adults with moderate to severe plaque psoriasis or active psoriatic arthritis.

This is the seventh ustekinumab biosimilar approved by the FDA. The biosimilar, developed by Celltrion, has a license entry date in February 2025 as part of the settlement and license agreement with the manufacturer of the reference biologic, Johnson & Johnson.

Ustekinumab-stba will be available in two formulations: A subcutaneous injection in two strengths — a 45 mg/0.5 mL or 90 mg/1 mL solution in a single-dose, prefilled syringe — and an intravenous infusion of a 130 mg/26 mL (5 mg/mL) solution in a single-dose vial.

“The approval of Steqeyma reflects Celltrion’s continued investment in providing treatment options to patients diagnosed with ulcerative colitis, Crohn’s disease, psoriasis, and psoriatic arthritis,” said Thomas Nusbickel, Chief Commercial Officer at Celltrion USA, Jersey City, New Jersey, in a press release.

The FDA has previously approved the company’s adalimumab biosimilar Yuflyma and its infliximab biosimilar Zymfentra.

The full prescribing information for ustekinumab-stba is available here.

A version of this article first appeared on Medscape.com. 

The Food and Drug Administration (FDA) has approved ustekinumab-stba (Steqeyma) as a biosimilar to the interleukin-12 and -23 inhibitor ustekinumab (Stelara) for the treatment of adults with active Crohn’s disease or ulcerative colitis and for both children aged ≥ 6 years and adults with moderate to severe plaque psoriasis or active psoriatic arthritis.

This is the seventh ustekinumab biosimilar approved by the FDA. The biosimilar, developed by Celltrion, has a license entry date in February 2025 as part of the settlement and license agreement with the manufacturer of the reference biologic, Johnson & Johnson.

Ustekinumab-stba will be available in two formulations: A subcutaneous injection in two strengths — a 45 mg/0.5 mL or 90 mg/1 mL solution in a single-dose, prefilled syringe — and an intravenous infusion of a 130 mg/26 mL (5 mg/mL) solution in a single-dose vial.

“The approval of Steqeyma reflects Celltrion’s continued investment in providing treatment options to patients diagnosed with ulcerative colitis, Crohn’s disease, psoriasis, and psoriatic arthritis,” said Thomas Nusbickel, Chief Commercial Officer at Celltrion USA, Jersey City, New Jersey, in a press release.

The FDA has previously approved the company’s adalimumab biosimilar Yuflyma and its infliximab biosimilar Zymfentra.

The full prescribing information for ustekinumab-stba is available here.

A version of this article first appeared on Medscape.com. 

OVIEDO, SPAIN – In April 2023, the Navarra Pharmacovigilance Center (NPC) became aware of a case involving an infant who developed progressive hair growth on their back, legs, and thighs (hypertrichosis) over the course of 2 months. During an interview with the family, it was revealed that the infant’s father had been using 5% topical minoxidil to treat androgenic alopecia, and he had taken a leave of absence from work to care for his child. After the medication was discontinued, the infant’s symptoms fully regressed. Specialists from the NPC presented the case at the 13th Spanish Pharmacovigilance Congress in November 2024.

A review of similar cases reported in the Spanish Pharmacovigilance System database identified six additional cases with the same characteristics, all involving infants whose caregivers were using minoxidil. Four more cases were found through the European pharmacovigilance database EudraVigilance and a review of scientific literature, bringing the total to 11 cases.

According to the Navarra Pharmacovigilance Bulletin, these cases are concerning as they highlight the exposure of vulnerable infants to a medication not indicated for their age group. Additionally, the condition can cause significant stress for the families of the affected children.

 

Mechanism of Transmission Unclear

The exact mechanism by which caregivers transfer minoxidil to infants is not fully understood. In the newly identified cases, specialists suspect the drug was transmitted through direct or indirect contact. Accidental ingestion is also a possibility if the infant’s hands touched treated areas on the caregiver’s skin and were then brought to the mouth.

The NPC explained that infants’ skin is more permeable because of the thinner stratum corneum and a higher surface area/body weight ratio, making them more susceptible to absorbing topically applied medications.

 

Regulatory Changes and Precautions

In light of these findings, the European Medicines Agency’s Pharmacovigilance Risk Assessment Committee concluded that, starting in October 2024, product information for medications containing minoxidil should be updated. Specifically, new information must be added to the package insert warning about the risk for hypertrichosis in infants following accidental exposure to minoxidil.

The NPC emphasizes the importance of caregivers being aware of the risks associated with topical medications like minoxidil. Recommended precautions include thoroughly washing hands after applying the product and covering treated areas to prevent direct contact with infants’ skin.

Healthcare professionals should also be aware of this risk and consider it when diagnosing hypertrichosis in infants. Recognizing the connection can prevent unnecessary testing for the infant and alleviate stress for the family.

This story was translated from Univadis Spain using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

OVIEDO, SPAIN – In April 2023, the Navarra Pharmacovigilance Center (NPC) became aware of a case involving an infant who developed progressive hair growth on their back, legs, and thighs (hypertrichosis) over the course of 2 months. During an interview with the family, it was revealed that the infant’s father had been using 5% topical minoxidil to treat androgenic alopecia, and he had taken a leave of absence from work to care for his child. After the medication was discontinued, the infant’s symptoms fully regressed. Specialists from the NPC presented the case at the 13th Spanish Pharmacovigilance Congress in November 2024.

A review of similar cases reported in the Spanish Pharmacovigilance System database identified six additional cases with the same characteristics, all involving infants whose caregivers were using minoxidil. Four more cases were found through the European pharmacovigilance database EudraVigilance and a review of scientific literature, bringing the total to 11 cases.

According to the Navarra Pharmacovigilance Bulletin, these cases are concerning as they highlight the exposure of vulnerable infants to a medication not indicated for their age group. Additionally, the condition can cause significant stress for the families of the affected children.

 

Mechanism of Transmission Unclear

The exact mechanism by which caregivers transfer minoxidil to infants is not fully understood. In the newly identified cases, specialists suspect the drug was transmitted through direct or indirect contact. Accidental ingestion is also a possibility if the infant’s hands touched treated areas on the caregiver’s skin and were then brought to the mouth.

The NPC explained that infants’ skin is more permeable because of the thinner stratum corneum and a higher surface area/body weight ratio, making them more susceptible to absorbing topically applied medications.

 

Regulatory Changes and Precautions

In light of these findings, the European Medicines Agency’s Pharmacovigilance Risk Assessment Committee concluded that, starting in October 2024, product information for medications containing minoxidil should be updated. Specifically, new information must be added to the package insert warning about the risk for hypertrichosis in infants following accidental exposure to minoxidil.

The NPC emphasizes the importance of caregivers being aware of the risks associated with topical medications like minoxidil. Recommended precautions include thoroughly washing hands after applying the product and covering treated areas to prevent direct contact with infants’ skin.

Healthcare professionals should also be aware of this risk and consider it when diagnosing hypertrichosis in infants. Recognizing the connection can prevent unnecessary testing for the infant and alleviate stress for the family.

This story was translated from Univadis Spain using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

OVIEDO, SPAIN – In April 2023, the Navarra Pharmacovigilance Center (NPC) became aware of a case involving an infant who developed progressive hair growth on their back, legs, and thighs (hypertrichosis) over the course of 2 months. During an interview with the family, it was revealed that the infant’s father had been using 5% topical minoxidil to treat androgenic alopecia, and he had taken a leave of absence from work to care for his child. After the medication was discontinued, the infant’s symptoms fully regressed. Specialists from the NPC presented the case at the 13th Spanish Pharmacovigilance Congress in November 2024.

A review of similar cases reported in the Spanish Pharmacovigilance System database identified six additional cases with the same characteristics, all involving infants whose caregivers were using minoxidil. Four more cases were found through the European pharmacovigilance database EudraVigilance and a review of scientific literature, bringing the total to 11 cases.

According to the Navarra Pharmacovigilance Bulletin, these cases are concerning as they highlight the exposure of vulnerable infants to a medication not indicated for their age group. Additionally, the condition can cause significant stress for the families of the affected children.

 

Mechanism of Transmission Unclear

The exact mechanism by which caregivers transfer minoxidil to infants is not fully understood. In the newly identified cases, specialists suspect the drug was transmitted through direct or indirect contact. Accidental ingestion is also a possibility if the infant’s hands touched treated areas on the caregiver’s skin and were then brought to the mouth.

The NPC explained that infants’ skin is more permeable because of the thinner stratum corneum and a higher surface area/body weight ratio, making them more susceptible to absorbing topically applied medications.

 

Regulatory Changes and Precautions

In light of these findings, the European Medicines Agency’s Pharmacovigilance Risk Assessment Committee concluded that, starting in October 2024, product information for medications containing minoxidil should be updated. Specifically, new information must be added to the package insert warning about the risk for hypertrichosis in infants following accidental exposure to minoxidil.

The NPC emphasizes the importance of caregivers being aware of the risks associated with topical medications like minoxidil. Recommended precautions include thoroughly washing hands after applying the product and covering treated areas to prevent direct contact with infants’ skin.

Healthcare professionals should also be aware of this risk and consider it when diagnosing hypertrichosis in infants. Recognizing the connection can prevent unnecessary testing for the infant and alleviate stress for the family.

This story was translated from Univadis Spain using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

This transcript has been edited for clarity. 

Oh, insurance claim denials. When patient care or treatment is warranted by a specific diagnosis, I wish insurers would just reimburse it without any hassle. That’s not reality. Let’s talk about insurance claim denials, how they’re rising and harming patient care, and what we can do about it. That’s kind of complicated.

Rising Trend in Claim Denials and Financial Impact

First, denials are increasing. Experian Health surveyed provider revenue cycle leaders— that’s a fancy term for people who manage billing and insurance claims — and 75% said that denials are increasing. This is up from 42% a few years ago. Those surveyed also said that reimbursement times and errors in claims are also increasing, and changes in policy are happening more frequently. This all adds to the problem. 

Aside from being time-consuming and annoying, claim denials take a toll on hospitals and patients. One analysis, which made headlines everywhere, showed that hospitals and health systems spent nearly $20 billion in 2022 trying to repeal overturned claims. This analysis was done by Premier, a health insurance performance company.

 

Breakdown of Denial Rates and Costs

Let’s do some quick whiteboard math. Health insurance companies get about 3 billion claims per year. According to surveys, about 15% of those claims are denied, so that leaves us with 450 million denied claims. Hospitals spend, on average, $43.84 per denied claim in administrative fees trying to get them overturned.

That’s about $19.7 billion spent on claim denials. Here’s the gut punch: Around 54% of those claims are ultimately paid, so that leaves us with $10.7 billion that we definitely should have saved. 

 

Common Reasons for Denials

Let’s take a look at major causes and what’s going on. 

Insurance denial rates are all over the place. It depends on state and plan. According to one analysis, the average for in-network claim denials across some states was 4% to 5%. It was 40% in Mississippi. According to HealthCare.gov, in 2021, around 17% of in-network claims were denied. 

The most common reasons were excluded services, a lack of referral or preauthorization, or a medical treatment not being deemed necessary. Then there’s the black box of “other,” just some arbitrary reason to make a claim denial. 

Many times, these denials are done by an algorithm, not by individual people. 

What’s more, a Kaiser Family Foundation analysis found that private insurers, including Medicare Advantage plans, were more likely to deny claims than public options. 

When broken down, the problem was higher among employer-sponsored and marketplace insurance, and less so with Medicare and Medicaid. 

 

Impact on Patient Care

Many consumers don’t truly understand what their health insurance covers and what’s going to be out of pocket, and many people don’t know that they have appeal rights. They don’t know who to call for help either. 

The ACA set up Consumer Assistance Programs (CAPs), which are designed to help people navigate health insurance problems. By law, private insurers have to share data with CAPs. Yet, only 3% of people who had trouble with health insurance claims called a CAP for help.

We all know some of the downstream effects of this problem. Patients may skip or delay treatments if they can’t get insurance to cover it or it’s too expensive. When post-acute care, such as transfer to a skilled nursing facility or rehab center, isn’t covered and we’re trying to discharge patients from the hospital, hospital stays become lengthened, which means they’re more expensive, and this comes with its own set of complications.

 

How Can We Address This?

I’m genuinely curious about what you all have done to efficiently address this problem. I’m looking at this publication from the American Health Information Management Association about major reasons for denial. We’ve already talked about a lack of preauthorization or procedures not being covered, but there are also reasons such as missing or incorrect information, duplicate claims, and not filing within the appropriate time.

Also, if treatments or procedures are bundled, they can’t be filed separately. 

Preventing all of this would take a large effort. Healthcare systems would have to have a dedicated team, who would understand all the major reasons for denials, identify common patterns, and then fill everything out with accurate information, with referrals, with preauthorizations, high-specificity codes, and the correct modifiers — and do all of this within the filing deadline every time. 

You would need physicians on board, but also people from IT, finance, compliance, case management, registration, and probably a bunch of other people who are already stretched too thin. 

Perhaps our government can do more to hold insurers accountable and make sure plans, such as Medicare Advantage, are holding up their end of the public health bargain.

It’s an uphill $20 billion battle, but I’m optimistic. What about you? What’s your unfiltered take on claim denials? What more can we be doing?

Dr. Patel is a clinical instructor, Department of Pediatrics, Columbia University College of Physicians and Surgeons; pediatric hospitalist, Morgan Stanley Children’s Hospital of NewYork-Presbyterian, New York City, and Benioff Children’s Hospital, University of California, San Francisco. He reported a conflict of interest with Medumo.

A version of this article first appeared on Medscape.com.

This transcript has been edited for clarity. 

Oh, insurance claim denials. When patient care or treatment is warranted by a specific diagnosis, I wish insurers would just reimburse it without any hassle. That’s not reality. Let’s talk about insurance claim denials, how they’re rising and harming patient care, and what we can do about it. That’s kind of complicated.

Rising Trend in Claim Denials and Financial Impact

First, denials are increasing. Experian Health surveyed provider revenue cycle leaders— that’s a fancy term for people who manage billing and insurance claims — and 75% said that denials are increasing. This is up from 42% a few years ago. Those surveyed also said that reimbursement times and errors in claims are also increasing, and changes in policy are happening more frequently. This all adds to the problem. 

Aside from being time-consuming and annoying, claim denials take a toll on hospitals and patients. One analysis, which made headlines everywhere, showed that hospitals and health systems spent nearly $20 billion in 2022 trying to repeal overturned claims. This analysis was done by Premier, a health insurance performance company.

 

Breakdown of Denial Rates and Costs

Let’s do some quick whiteboard math. Health insurance companies get about 3 billion claims per year. According to surveys, about 15% of those claims are denied, so that leaves us with 450 million denied claims. Hospitals spend, on average, $43.84 per denied claim in administrative fees trying to get them overturned.

That’s about $19.7 billion spent on claim denials. Here’s the gut punch: Around 54% of those claims are ultimately paid, so that leaves us with $10.7 billion that we definitely should have saved. 

 

Common Reasons for Denials

Let’s take a look at major causes and what’s going on. 

Insurance denial rates are all over the place. It depends on state and plan. According to one analysis, the average for in-network claim denials across some states was 4% to 5%. It was 40% in Mississippi. According to HealthCare.gov, in 2021, around 17% of in-network claims were denied. 

The most common reasons were excluded services, a lack of referral or preauthorization, or a medical treatment not being deemed necessary. Then there’s the black box of “other,” just some arbitrary reason to make a claim denial. 

Many times, these denials are done by an algorithm, not by individual people. 

What’s more, a Kaiser Family Foundation analysis found that private insurers, including Medicare Advantage plans, were more likely to deny claims than public options. 

When broken down, the problem was higher among employer-sponsored and marketplace insurance, and less so with Medicare and Medicaid. 

 

Impact on Patient Care

Many consumers don’t truly understand what their health insurance covers and what’s going to be out of pocket, and many people don’t know that they have appeal rights. They don’t know who to call for help either. 

The ACA set up Consumer Assistance Programs (CAPs), which are designed to help people navigate health insurance problems. By law, private insurers have to share data with CAPs. Yet, only 3% of people who had trouble with health insurance claims called a CAP for help.

We all know some of the downstream effects of this problem. Patients may skip or delay treatments if they can’t get insurance to cover it or it’s too expensive. When post-acute care, such as transfer to a skilled nursing facility or rehab center, isn’t covered and we’re trying to discharge patients from the hospital, hospital stays become lengthened, which means they’re more expensive, and this comes with its own set of complications.

 

How Can We Address This?

I’m genuinely curious about what you all have done to efficiently address this problem. I’m looking at this publication from the American Health Information Management Association about major reasons for denial. We’ve already talked about a lack of preauthorization or procedures not being covered, but there are also reasons such as missing or incorrect information, duplicate claims, and not filing within the appropriate time.

Also, if treatments or procedures are bundled, they can’t be filed separately. 

Preventing all of this would take a large effort. Healthcare systems would have to have a dedicated team, who would understand all the major reasons for denials, identify common patterns, and then fill everything out with accurate information, with referrals, with preauthorizations, high-specificity codes, and the correct modifiers — and do all of this within the filing deadline every time. 

You would need physicians on board, but also people from IT, finance, compliance, case management, registration, and probably a bunch of other people who are already stretched too thin. 

Perhaps our government can do more to hold insurers accountable and make sure plans, such as Medicare Advantage, are holding up their end of the public health bargain.

It’s an uphill $20 billion battle, but I’m optimistic. What about you? What’s your unfiltered take on claim denials? What more can we be doing?

Dr. Patel is a clinical instructor, Department of Pediatrics, Columbia University College of Physicians and Surgeons; pediatric hospitalist, Morgan Stanley Children’s Hospital of NewYork-Presbyterian, New York City, and Benioff Children’s Hospital, University of California, San Francisco. He reported a conflict of interest with Medumo.

A version of this article first appeared on Medscape.com.

This transcript has been edited for clarity. 

Oh, insurance claim denials. When patient care or treatment is warranted by a specific diagnosis, I wish insurers would just reimburse it without any hassle. That’s not reality. Let’s talk about insurance claim denials, how they’re rising and harming patient care, and what we can do about it. That’s kind of complicated.

Rising Trend in Claim Denials and Financial Impact

First, denials are increasing. Experian Health surveyed provider revenue cycle leaders— that’s a fancy term for people who manage billing and insurance claims — and 75% said that denials are increasing. This is up from 42% a few years ago. Those surveyed also said that reimbursement times and errors in claims are also increasing, and changes in policy are happening more frequently. This all adds to the problem. 

Aside from being time-consuming and annoying, claim denials take a toll on hospitals and patients. One analysis, which made headlines everywhere, showed that hospitals and health systems spent nearly $20 billion in 2022 trying to repeal overturned claims. This analysis was done by Premier, a health insurance performance company.

 

Breakdown of Denial Rates and Costs

Let’s do some quick whiteboard math. Health insurance companies get about 3 billion claims per year. According to surveys, about 15% of those claims are denied, so that leaves us with 450 million denied claims. Hospitals spend, on average, $43.84 per denied claim in administrative fees trying to get them overturned.

That’s about $19.7 billion spent on claim denials. Here’s the gut punch: Around 54% of those claims are ultimately paid, so that leaves us with $10.7 billion that we definitely should have saved. 

 

Common Reasons for Denials

Let’s take a look at major causes and what’s going on. 

Insurance denial rates are all over the place. It depends on state and plan. According to one analysis, the average for in-network claim denials across some states was 4% to 5%. It was 40% in Mississippi. According to HealthCare.gov, in 2021, around 17% of in-network claims were denied. 

The most common reasons were excluded services, a lack of referral or preauthorization, or a medical treatment not being deemed necessary. Then there’s the black box of “other,” just some arbitrary reason to make a claim denial. 

Many times, these denials are done by an algorithm, not by individual people. 

What’s more, a Kaiser Family Foundation analysis found that private insurers, including Medicare Advantage plans, were more likely to deny claims than public options. 

When broken down, the problem was higher among employer-sponsored and marketplace insurance, and less so with Medicare and Medicaid. 

 

Impact on Patient Care

Many consumers don’t truly understand what their health insurance covers and what’s going to be out of pocket, and many people don’t know that they have appeal rights. They don’t know who to call for help either. 

The ACA set up Consumer Assistance Programs (CAPs), which are designed to help people navigate health insurance problems. By law, private insurers have to share data with CAPs. Yet, only 3% of people who had trouble with health insurance claims called a CAP for help.

We all know some of the downstream effects of this problem. Patients may skip or delay treatments if they can’t get insurance to cover it or it’s too expensive. When post-acute care, such as transfer to a skilled nursing facility or rehab center, isn’t covered and we’re trying to discharge patients from the hospital, hospital stays become lengthened, which means they’re more expensive, and this comes with its own set of complications.

 

How Can We Address This?

I’m genuinely curious about what you all have done to efficiently address this problem. I’m looking at this publication from the American Health Information Management Association about major reasons for denial. We’ve already talked about a lack of preauthorization or procedures not being covered, but there are also reasons such as missing or incorrect information, duplicate claims, and not filing within the appropriate time.

Also, if treatments or procedures are bundled, they can’t be filed separately. 

Preventing all of this would take a large effort. Healthcare systems would have to have a dedicated team, who would understand all the major reasons for denials, identify common patterns, and then fill everything out with accurate information, with referrals, with preauthorizations, high-specificity codes, and the correct modifiers — and do all of this within the filing deadline every time. 

You would need physicians on board, but also people from IT, finance, compliance, case management, registration, and probably a bunch of other people who are already stretched too thin. 

Perhaps our government can do more to hold insurers accountable and make sure plans, such as Medicare Advantage, are holding up their end of the public health bargain.

It’s an uphill $20 billion battle, but I’m optimistic. What about you? What’s your unfiltered take on claim denials? What more can we be doing?

Dr. Patel is a clinical instructor, Department of Pediatrics, Columbia University College of Physicians and Surgeons; pediatric hospitalist, Morgan Stanley Children’s Hospital of NewYork-Presbyterian, New York City, and Benioff Children’s Hospital, University of California, San Francisco. He reported a conflict of interest with Medumo.

A version of this article first appeared on Medscape.com.

Alpha-gal syndrome (AGS), a tickborne disease commonly called “red meat allergy,” is a serious, potentially life-threatening allergy to the carbohydrate alpha-gal. The alpha-gal carbohydrate is found in most mammals, though it is not in humans, apes, or old-world monkeys. People with AGS can have allergic reactions when they consume mammalian meat, dairy products, or other products derived from mammals. People often live with this disease for years before receiving a correct diagnosis, greatly impacting their quality of life. The number of suspected cases is also rising. 

More than 110,000 suspected AGS cases were identified between 2010 and 2022, according to a Centers for Disease Control and Prevention (CDC) report.¹ However, because the diagnosis requires a positive test and a clinical exam and some people may not get tested, as many as 450,000 people might be affected by AGS in the United States. Additionally, a CDC survey found that nearly half (42%) of US healthcare providers had never heard of AGS.² Among those who had, less than one third (29%) knew how to diagnose the condition. 

Here are 5 things clinicians need to know about AGS.

 

1. People can develop AGS after being bitten by a tick, primarily the lone star tick (Amblyomma americanum), in the United States.

In the United States, AGS is primarily associated with the bite of a lone star tick, but other kinds of ticks have not been ruled out. The majority of suspected AGS cases in the United States were reported in parts of Arkansas, Delaware, Illinois, Indiana, Kansas, Kentucky, Maryland, Mississippi, Missouri, North Carolina, Oklahoma, Tennessee, and Virginia. The lone star tick is widely distributed with established populations in Alabama, Arkansas, Connecticut, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Hampshire, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, and West Virginia. 

While AGS is associated with tick bites, more research is needed to understand the role ticks play in starting this condition, and why certain people develop AGS. Anyone can develop AGS, but most cases have been reported in adults. 

Know how to recognize the symptoms of AGS and be prepared to test, diagnose, and manage AGS, particularly in states where lone star ticks are found. 

 

2. Tick bites are only one risk factor for developing AGS. 

Many people are bitten by lone star ticks and will never develop AGS. Scientists are exploring the connection between other risk factors and developing AGS. A recent study has shown that people diagnosed with AGS may be more likely to have a family member who was also diagnosed with AGS, have another food allergy, have an allergy to stinging or biting insects, or have A or O blood types.³ 

Research has also shown that environmental risk factors could contribute to developing AGS,⁴ like living in an area with lone star ticks, remembering finding a tick on themselves, recalling multiple tick bites, living near a wooded forest, spending more time outside, or living in areas with deer, such as larger properties, wooded forests, and properties with shrubs and brush. 

Ask your patient questions about other allergies and history of recent tick bites or outdoor exposure to help determine if testing for AGS is appropriate.

 

3. Symptoms of AGS are consistently inconsistent.

There is a spectrum of how sensitive AGS patients are to alpha-gal, and reactions are often different from person to person, which can make it difficult to diagnose. The first allergic reaction to AGS typically occurs between 1-6 months after a tick bite. Symptoms commonly appear 2-6 hours after being in contact with products containing alpha-gal, like red meat (beef, pork, lamb, venison, rabbit, or other meat from mammals), dairy, and some medications. Symptoms can range from mild to severe and include hives or itchy rash; swelling of the lips, throat, tongue, or eyelids; gastrointestinal symptoms such as nausea, vomiting, or diarrhea; heartburn or indigestion; cough, shortness of breath, or difficulty breathing; dizziness or a drop in blood pressure; or anaphylaxis.

Consider AGS if a patient reports waking up in the middle of the night with allergic symptoms after eating alpha-gal containing products for dinner, if allergic reactions are delayed, or if a patient has anaphylaxis of unknown cause, adult-onset allergy, or allergic symptoms and reports a recent tick bite. 

 

4. Diagnosing AGS requires a combination of a blood test and a physical exam.

Diagnosing AGS requires a detailed patient history, physical exam, and a blood test to detect specific immunoglobulin E (IgE) antibodies specific to alpha-gal (alpha-gal sIgE). Tests for alpha-gal sIgE antibodies are available at several large commercial laboratories and some academic institutions. Skin tests to identify reactions to allergens like pork or beef may also be used to inform AGS diagnosis. However, a positive alpha-gal sIgE test or skin test does not mean a person has AGS. Many people, particularly those who live in regions with lone star ticks, have positive alpha-gal specific IgE tests without having AGS. 

Consider the test results along with your patient’s symptoms and risk factors.

 

5. There is no treatment for AGS, but people can take prevention steps and AGS can be managed.

People can protect themselves and their family from AGS by preventing tick bites. Encourage your patients to use an Environmental Protection Agency–registered insect repellent outdoors, wear permethrin-treated clothing, and conduct thorough tick checks after outdoor activities. 

Once a person is no longer exposed to alpha-gal containing products, they should no longer experience symptoms. People with AGS should also proactively prevent tick bites. Tick bites can trigger or reactivate AGS.

For patients who have AGS, help manage their symptoms and identify alpha-gal containing products to avoid.

Dr. Kersh is Chief of the Rickettsial Zoonoses Branch, Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, and disclosed no relevant conflicts of interest.

CDC resources:

About Alpha-gal Syndrome | Alpha-gal Syndrome | CDC 

Clinical Testing and Diagnosis for Alpha-gal Syndrome | Alpha-gal Syndrome | CDC 

Clinical Resources | Alpha-gal Syndrome | CDC 

References 

Thompson JM et al. MMWR Morb Mortal Wkly Rep. 2023;72:815-820. 

Carpenter A et al. MMWR Morb Mortal Wkly Rep. 2023;72:809-814. Taylor ML et al. Ann Allergy, Asthma & Immunol. 2024 Jun;132(6):759.e2-764.e2. Kersh GJ et al. Ann Allergy, Asthma & Immunol. 2023 Apr;130(4):472-478.

Alpha-gal syndrome (AGS), a tickborne disease commonly called “red meat allergy,” is a serious, potentially life-threatening allergy to the carbohydrate alpha-gal. The alpha-gal carbohydrate is found in most mammals, though it is not in humans, apes, or old-world monkeys. People with AGS can have allergic reactions when they consume mammalian meat, dairy products, or other products derived from mammals. People often live with this disease for years before receiving a correct diagnosis, greatly impacting their quality of life. The number of suspected cases is also rising. 

More than 110,000 suspected AGS cases were identified between 2010 and 2022, according to a Centers for Disease Control and Prevention (CDC) report.¹ However, because the diagnosis requires a positive test and a clinical exam and some people may not get tested, as many as 450,000 people might be affected by AGS in the United States. Additionally, a CDC survey found that nearly half (42%) of US healthcare providers had never heard of AGS.² Among those who had, less than one third (29%) knew how to diagnose the condition. 

Here are 5 things clinicians need to know about AGS.

 

1. People can develop AGS after being bitten by a tick, primarily the lone star tick (Amblyomma americanum), in the United States.

In the United States, AGS is primarily associated with the bite of a lone star tick, but other kinds of ticks have not been ruled out. The majority of suspected AGS cases in the United States were reported in parts of Arkansas, Delaware, Illinois, Indiana, Kansas, Kentucky, Maryland, Mississippi, Missouri, North Carolina, Oklahoma, Tennessee, and Virginia. The lone star tick is widely distributed with established populations in Alabama, Arkansas, Connecticut, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Hampshire, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, and West Virginia. 

While AGS is associated with tick bites, more research is needed to understand the role ticks play in starting this condition, and why certain people develop AGS. Anyone can develop AGS, but most cases have been reported in adults. 

Know how to recognize the symptoms of AGS and be prepared to test, diagnose, and manage AGS, particularly in states where lone star ticks are found. 

 

2. Tick bites are only one risk factor for developing AGS. 

Many people are bitten by lone star ticks and will never develop AGS. Scientists are exploring the connection between other risk factors and developing AGS. A recent study has shown that people diagnosed with AGS may be more likely to have a family member who was also diagnosed with AGS, have another food allergy, have an allergy to stinging or biting insects, or have A or O blood types.³ 

Research has also shown that environmental risk factors could contribute to developing AGS,⁴ like living in an area with lone star ticks, remembering finding a tick on themselves, recalling multiple tick bites, living near a wooded forest, spending more time outside, or living in areas with deer, such as larger properties, wooded forests, and properties with shrubs and brush. 

Ask your patient questions about other allergies and history of recent tick bites or outdoor exposure to help determine if testing for AGS is appropriate.

 

3. Symptoms of AGS are consistently inconsistent.

There is a spectrum of how sensitive AGS patients are to alpha-gal, and reactions are often different from person to person, which can make it difficult to diagnose. The first allergic reaction to AGS typically occurs between 1-6 months after a tick bite. Symptoms commonly appear 2-6 hours after being in contact with products containing alpha-gal, like red meat (beef, pork, lamb, venison, rabbit, or other meat from mammals), dairy, and some medications. Symptoms can range from mild to severe and include hives or itchy rash; swelling of the lips, throat, tongue, or eyelids; gastrointestinal symptoms such as nausea, vomiting, or diarrhea; heartburn or indigestion; cough, shortness of breath, or difficulty breathing; dizziness or a drop in blood pressure; or anaphylaxis.

Consider AGS if a patient reports waking up in the middle of the night with allergic symptoms after eating alpha-gal containing products for dinner, if allergic reactions are delayed, or if a patient has anaphylaxis of unknown cause, adult-onset allergy, or allergic symptoms and reports a recent tick bite. 

 

4. Diagnosing AGS requires a combination of a blood test and a physical exam.

Diagnosing AGS requires a detailed patient history, physical exam, and a blood test to detect specific immunoglobulin E (IgE) antibodies specific to alpha-gal (alpha-gal sIgE). Tests for alpha-gal sIgE antibodies are available at several large commercial laboratories and some academic institutions. Skin tests to identify reactions to allergens like pork or beef may also be used to inform AGS diagnosis. However, a positive alpha-gal sIgE test or skin test does not mean a person has AGS. Many people, particularly those who live in regions with lone star ticks, have positive alpha-gal specific IgE tests without having AGS. 

Consider the test results along with your patient’s symptoms and risk factors.

 

5. There is no treatment for AGS, but people can take prevention steps and AGS can be managed.

People can protect themselves and their family from AGS by preventing tick bites. Encourage your patients to use an Environmental Protection Agency–registered insect repellent outdoors, wear permethrin-treated clothing, and conduct thorough tick checks after outdoor activities. 

Once a person is no longer exposed to alpha-gal containing products, they should no longer experience symptoms. People with AGS should also proactively prevent tick bites. Tick bites can trigger or reactivate AGS.

For patients who have AGS, help manage their symptoms and identify alpha-gal containing products to avoid.

Dr. Kersh is Chief of the Rickettsial Zoonoses Branch, Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, and disclosed no relevant conflicts of interest.

CDC resources:

About Alpha-gal Syndrome | Alpha-gal Syndrome | CDC 

Clinical Testing and Diagnosis for Alpha-gal Syndrome | Alpha-gal Syndrome | CDC 

Clinical Resources | Alpha-gal Syndrome | CDC 

References 

Thompson JM et al. MMWR Morb Mortal Wkly Rep. 2023;72:815-820. 

Carpenter A et al. MMWR Morb Mortal Wkly Rep. 2023;72:809-814. Taylor ML et al. Ann Allergy, Asthma & Immunol. 2024 Jun;132(6):759.e2-764.e2. Kersh GJ et al. Ann Allergy, Asthma & Immunol. 2023 Apr;130(4):472-478.

Alpha-gal syndrome (AGS), a tickborne disease commonly called “red meat allergy,” is a serious, potentially life-threatening allergy to the carbohydrate alpha-gal. The alpha-gal carbohydrate is found in most mammals, though it is not in humans, apes, or old-world monkeys. People with AGS can have allergic reactions when they consume mammalian meat, dairy products, or other products derived from mammals. People often live with this disease for years before receiving a correct diagnosis, greatly impacting their quality of life. The number of suspected cases is also rising. 

More than 110,000 suspected AGS cases were identified between 2010 and 2022, according to a Centers for Disease Control and Prevention (CDC) report.¹ However, because the diagnosis requires a positive test and a clinical exam and some people may not get tested, as many as 450,000 people might be affected by AGS in the United States. Additionally, a CDC survey found that nearly half (42%) of US healthcare providers had never heard of AGS.² Among those who had, less than one third (29%) knew how to diagnose the condition. 

Here are 5 things clinicians need to know about AGS.

 

1. People can develop AGS after being bitten by a tick, primarily the lone star tick (Amblyomma americanum), in the United States.

In the United States, AGS is primarily associated with the bite of a lone star tick, but other kinds of ticks have not been ruled out. The majority of suspected AGS cases in the United States were reported in parts of Arkansas, Delaware, Illinois, Indiana, Kansas, Kentucky, Maryland, Mississippi, Missouri, North Carolina, Oklahoma, Tennessee, and Virginia. The lone star tick is widely distributed with established populations in Alabama, Arkansas, Connecticut, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Hampshire, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, and West Virginia. 

While AGS is associated with tick bites, more research is needed to understand the role ticks play in starting this condition, and why certain people develop AGS. Anyone can develop AGS, but most cases have been reported in adults. 

Know how to recognize the symptoms of AGS and be prepared to test, diagnose, and manage AGS, particularly in states where lone star ticks are found. 

 

2. Tick bites are only one risk factor for developing AGS. 

Many people are bitten by lone star ticks and will never develop AGS. Scientists are exploring the connection between other risk factors and developing AGS. A recent study has shown that people diagnosed with AGS may be more likely to have a family member who was also diagnosed with AGS, have another food allergy, have an allergy to stinging or biting insects, or have A or O blood types.³ 

Research has also shown that environmental risk factors could contribute to developing AGS,⁴ like living in an area with lone star ticks, remembering finding a tick on themselves, recalling multiple tick bites, living near a wooded forest, spending more time outside, or living in areas with deer, such as larger properties, wooded forests, and properties with shrubs and brush. 

Ask your patient questions about other allergies and history of recent tick bites or outdoor exposure to help determine if testing for AGS is appropriate.

 

3. Symptoms of AGS are consistently inconsistent.

There is a spectrum of how sensitive AGS patients are to alpha-gal, and reactions are often different from person to person, which can make it difficult to diagnose. The first allergic reaction to AGS typically occurs between 1-6 months after a tick bite. Symptoms commonly appear 2-6 hours after being in contact with products containing alpha-gal, like red meat (beef, pork, lamb, venison, rabbit, or other meat from mammals), dairy, and some medications. Symptoms can range from mild to severe and include hives or itchy rash; swelling of the lips, throat, tongue, or eyelids; gastrointestinal symptoms such as nausea, vomiting, or diarrhea; heartburn or indigestion; cough, shortness of breath, or difficulty breathing; dizziness or a drop in blood pressure; or anaphylaxis.

Consider AGS if a patient reports waking up in the middle of the night with allergic symptoms after eating alpha-gal containing products for dinner, if allergic reactions are delayed, or if a patient has anaphylaxis of unknown cause, adult-onset allergy, or allergic symptoms and reports a recent tick bite. 

 

4. Diagnosing AGS requires a combination of a blood test and a physical exam.

Diagnosing AGS requires a detailed patient history, physical exam, and a blood test to detect specific immunoglobulin E (IgE) antibodies specific to alpha-gal (alpha-gal sIgE). Tests for alpha-gal sIgE antibodies are available at several large commercial laboratories and some academic institutions. Skin tests to identify reactions to allergens like pork or beef may also be used to inform AGS diagnosis. However, a positive alpha-gal sIgE test or skin test does not mean a person has AGS. Many people, particularly those who live in regions with lone star ticks, have positive alpha-gal specific IgE tests without having AGS. 

Consider the test results along with your patient’s symptoms and risk factors.

 

5. There is no treatment for AGS, but people can take prevention steps and AGS can be managed.

People can protect themselves and their family from AGS by preventing tick bites. Encourage your patients to use an Environmental Protection Agency–registered insect repellent outdoors, wear permethrin-treated clothing, and conduct thorough tick checks after outdoor activities. 

Once a person is no longer exposed to alpha-gal containing products, they should no longer experience symptoms. People with AGS should also proactively prevent tick bites. Tick bites can trigger or reactivate AGS.

For patients who have AGS, help manage their symptoms and identify alpha-gal containing products to avoid.

Dr. Kersh is Chief of the Rickettsial Zoonoses Branch, Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, and disclosed no relevant conflicts of interest.

CDC resources:

About Alpha-gal Syndrome | Alpha-gal Syndrome | CDC 

Clinical Testing and Diagnosis for Alpha-gal Syndrome | Alpha-gal Syndrome | CDC 

Clinical Resources | Alpha-gal Syndrome | CDC 

References 

Thompson JM et al. MMWR Morb Mortal Wkly Rep. 2023;72:815-820. 

Carpenter A et al. MMWR Morb Mortal Wkly Rep. 2023;72:809-814. Taylor ML et al. Ann Allergy, Asthma & Immunol. 2024 Jun;132(6):759.e2-764.e2. Kersh GJ et al. Ann Allergy, Asthma & Immunol. 2023 Apr;130(4):472-478.

NEW YORK, NY — Work over the past several years has reframed hidradenitis suppurativa (HS) as a large-field inflammatory process, a recharacterization that has immediate relevance to treatment strategies and goals, according to two investigators intimately involved in much of the recent progress.

“Success is being achieved by targeting multiple inflammatory axes in HS, and therapeutics are evolving rapidly,” reported James G. Krueger, MD, PhD, head of the Laboratory of Investigative Dermatology, Rockefeller University, New York, NY.

The activity of targeted anti-inflammatory therapies — bimekizumab just joined adalimumab and secukinumab as a third approved biologic for HS — is not news, but the degree to which inflammation is upregulated systemically, not just at areas of skin involvement, has changed the conceptualization of HS.

HS Is a Systemic Inflammatory Disease

Relative to psoriasis, for which there are many parallels, “HS is hugely more inflammatory in the systemic circulation,” Krueger said at the 27th Annual Winter Symposium — Advances in Medical and Surgical Dermatology (MSWS) 2024. Yet, HS is also more complex involving additional pathways that appear to include dysbiosis. The concept of follicular occlusion, once a common explanation for HS, has been left far behind.

“Unlike psoriasis, which we can treat really well by inhibiting a single pathway target, HS is just not that simple,” Krueger said. Although largely an inflammatory process, the cascade of inflammatory factors for specific manifestations, such as tunnels, means that optimal therapy in one case might have little benefit in another.

The relatively new evidence that HS activity is not confined to lesional skin might be the most important recent step toward new strategies to target disease. These studies were performed by Kristina Navrazhina, MD, PhD, now a resident in dermatology at the Icahn School of Medicine at Mount Sinai, New York. She received her PhD while studying HS activity in non-lesional skin. Her work has led her to conclude that the best chance for better outcomes in HS is early diagnosis and treatment. Although this is generally true of any pathology, the changes in the HS phenotype once fistulae form includes a poor response to conventional therapies. 

In fact, based on her work in evaluating HS activity in non-lesional skin, Navrazhina has shown that “many patients with modest lesions already have advanced disease.” Consistent with the premise that HS is a deeply systemic inflammatory process, nodules, considered an early manifestation, turn out to be “the tip of the iceberg.”

 

Non-Lesional HS Skin Is Inflamed

When she has employed RNA sequencing based on tape strip sampling from completely normal skin away from nodules, interleukin (IL)-17 and a broad array of other inflammatory markers were found to be upregulated. When she performed ultrasound to look for disease activity under the normal skin, she has often found tunnels already formed. Doppler ultrasound showed some of these tunnels were actively draining.

This might provide a partial explanation for why therapies are not always effective even when clinical signs of disease are modest. 

“Are we missing the opportunity for intervening?” Navrazhina asked, noting that early intervention has been limited traditionally by extremely long diagnostic delays. Citing the literature, Navrazhina said the average delay is 7 years for HS versus 1 year for psoriasis. Patients often cycle through 3 or 4 providers before the diagnosis is made, she said.

Awakening first-line clinicians to the signs and symptoms of HS, whether in the emergency room or primary care, is a critical message because of the incrementally difficult task to control disease once fistulae have formed. 

Krueger made the same appeal. For the neutrophilic inflammation that characterizes nodules, targeted therapies are often effective, but he agreed that available therapies are generally far less so once tunnels form.

 

Role Seen for Bacteria in HS Pathogenesis

One reason might be an interaction between anaerobic bacteria and the keratinocytes that form the tunnel walls, according to Krueger. Although HS is not typically considered an infectious disease, he reported that the interaction of these bacteria with keratinocytes is associated with expression of approximately 1000 inflammatory gene products. The process of tunnel formation is traced to how factors recruited by upregulated inflammation, such as chemokines, coordinate.

He described recent work pursing novel strategies such as highly targeted antibiotics or inhibitors of complement factor C5a, which has been proposed as a biomarker for HS, to intervene in preventing or reversing HS tunnels. 

While this work progresses, one of the most Important unmet needs in HS is an accepted measure of clinically meaningful improvement in advanced disease, particularly the impact of therapy on HS tunnels, according to Krueger. 

“There is no measure of tunnel activity that the FDA accepts in evaluating drugs,” he noted, which will be essential for approving therapies that offer this benefit. 

A phase 3 trials program for one of the promising drugs, sonelokimab, was announced early in 2024. A nanobody that targets IL-17A/A, IL-17A/F, and IL-17F/F, the small size of this molecule permits exceptional tissue penetration while the broad anti-IL-17 activity has a high degree of theoretical potential in late-stage HS, according to Krueger. 

There are numerous pieces of the HS puzzle that are still missing, but both Krueger and Navrazhina are enthusiastic about new targets and opportunities for disease control that are stemming from a better understanding of the underlying pathophysiology. Not least, both indicated that testing for inflammatory phenotypes will allow for individualized therapeutic choices with a maximum likelihood of response, particularly if earlier diagnosis permits earlier treatment. 

“Due to the heterogeneity of HS, it is hard to know who will respond to which treatment or which treatment should be started first,” Navrazhina said. She thinks that early measures of the inflammatory profile in nodules or even non-lesional skin might provide that guidance. 

Both Krueger and Navrazhina reported no financial relationships relevant to this work. 

 

A version of this article appeared on Medscape.com.

NEW YORK, NY — Work over the past several years has reframed hidradenitis suppurativa (HS) as a large-field inflammatory process, a recharacterization that has immediate relevance to treatment strategies and goals, according to two investigators intimately involved in much of the recent progress.

“Success is being achieved by targeting multiple inflammatory axes in HS, and therapeutics are evolving rapidly,” reported James G. Krueger, MD, PhD, head of the Laboratory of Investigative Dermatology, Rockefeller University, New York, NY.

The activity of targeted anti-inflammatory therapies — bimekizumab just joined adalimumab and secukinumab as a third approved biologic for HS — is not news, but the degree to which inflammation is upregulated systemically, not just at areas of skin involvement, has changed the conceptualization of HS.

HS Is a Systemic Inflammatory Disease

Relative to psoriasis, for which there are many parallels, “HS is hugely more inflammatory in the systemic circulation,” Krueger said at the 27th Annual Winter Symposium — Advances in Medical and Surgical Dermatology (MSWS) 2024. Yet, HS is also more complex involving additional pathways that appear to include dysbiosis. The concept of follicular occlusion, once a common explanation for HS, has been left far behind.

“Unlike psoriasis, which we can treat really well by inhibiting a single pathway target, HS is just not that simple,” Krueger said. Although largely an inflammatory process, the cascade of inflammatory factors for specific manifestations, such as tunnels, means that optimal therapy in one case might have little benefit in another.

The relatively new evidence that HS activity is not confined to lesional skin might be the most important recent step toward new strategies to target disease. These studies were performed by Kristina Navrazhina, MD, PhD, now a resident in dermatology at the Icahn School of Medicine at Mount Sinai, New York. She received her PhD while studying HS activity in non-lesional skin. Her work has led her to conclude that the best chance for better outcomes in HS is early diagnosis and treatment. Although this is generally true of any pathology, the changes in the HS phenotype once fistulae form includes a poor response to conventional therapies. 

In fact, based on her work in evaluating HS activity in non-lesional skin, Navrazhina has shown that “many patients with modest lesions already have advanced disease.” Consistent with the premise that HS is a deeply systemic inflammatory process, nodules, considered an early manifestation, turn out to be “the tip of the iceberg.”

 

Non-Lesional HS Skin Is Inflamed

When she has employed RNA sequencing based on tape strip sampling from completely normal skin away from nodules, interleukin (IL)-17 and a broad array of other inflammatory markers were found to be upregulated. When she performed ultrasound to look for disease activity under the normal skin, she has often found tunnels already formed. Doppler ultrasound showed some of these tunnels were actively draining.

This might provide a partial explanation for why therapies are not always effective even when clinical signs of disease are modest. 

“Are we missing the opportunity for intervening?” Navrazhina asked, noting that early intervention has been limited traditionally by extremely long diagnostic delays. Citing the literature, Navrazhina said the average delay is 7 years for HS versus 1 year for psoriasis. Patients often cycle through 3 or 4 providers before the diagnosis is made, she said.

Awakening first-line clinicians to the signs and symptoms of HS, whether in the emergency room or primary care, is a critical message because of the incrementally difficult task to control disease once fistulae have formed. 

Krueger made the same appeal. For the neutrophilic inflammation that characterizes nodules, targeted therapies are often effective, but he agreed that available therapies are generally far less so once tunnels form.

 

Role Seen for Bacteria in HS Pathogenesis

One reason might be an interaction between anaerobic bacteria and the keratinocytes that form the tunnel walls, according to Krueger. Although HS is not typically considered an infectious disease, he reported that the interaction of these bacteria with keratinocytes is associated with expression of approximately 1000 inflammatory gene products. The process of tunnel formation is traced to how factors recruited by upregulated inflammation, such as chemokines, coordinate.

He described recent work pursing novel strategies such as highly targeted antibiotics or inhibitors of complement factor C5a, which has been proposed as a biomarker for HS, to intervene in preventing or reversing HS tunnels. 

While this work progresses, one of the most Important unmet needs in HS is an accepted measure of clinically meaningful improvement in advanced disease, particularly the impact of therapy on HS tunnels, according to Krueger. 

“There is no measure of tunnel activity that the FDA accepts in evaluating drugs,” he noted, which will be essential for approving therapies that offer this benefit. 

A phase 3 trials program for one of the promising drugs, sonelokimab, was announced early in 2024. A nanobody that targets IL-17A/A, IL-17A/F, and IL-17F/F, the small size of this molecule permits exceptional tissue penetration while the broad anti-IL-17 activity has a high degree of theoretical potential in late-stage HS, according to Krueger. 

There are numerous pieces of the HS puzzle that are still missing, but both Krueger and Navrazhina are enthusiastic about new targets and opportunities for disease control that are stemming from a better understanding of the underlying pathophysiology. Not least, both indicated that testing for inflammatory phenotypes will allow for individualized therapeutic choices with a maximum likelihood of response, particularly if earlier diagnosis permits earlier treatment. 

“Due to the heterogeneity of HS, it is hard to know who will respond to which treatment or which treatment should be started first,” Navrazhina said. She thinks that early measures of the inflammatory profile in nodules or even non-lesional skin might provide that guidance. 

Both Krueger and Navrazhina reported no financial relationships relevant to this work. 

 

A version of this article appeared on Medscape.com.

NEW YORK, NY — Work over the past several years has reframed hidradenitis suppurativa (HS) as a large-field inflammatory process, a recharacterization that has immediate relevance to treatment strategies and goals, according to two investigators intimately involved in much of the recent progress.

“Success is being achieved by targeting multiple inflammatory axes in HS, and therapeutics are evolving rapidly,” reported James G. Krueger, MD, PhD, head of the Laboratory of Investigative Dermatology, Rockefeller University, New York, NY.

The activity of targeted anti-inflammatory therapies — bimekizumab just joined adalimumab and secukinumab as a third approved biologic for HS — is not news, but the degree to which inflammation is upregulated systemically, not just at areas of skin involvement, has changed the conceptualization of HS.

HS Is a Systemic Inflammatory Disease

Relative to psoriasis, for which there are many parallels, “HS is hugely more inflammatory in the systemic circulation,” Krueger said at the 27th Annual Winter Symposium — Advances in Medical and Surgical Dermatology (MSWS) 2024. Yet, HS is also more complex involving additional pathways that appear to include dysbiosis. The concept of follicular occlusion, once a common explanation for HS, has been left far behind.

“Unlike psoriasis, which we can treat really well by inhibiting a single pathway target, HS is just not that simple,” Krueger said. Although largely an inflammatory process, the cascade of inflammatory factors for specific manifestations, such as tunnels, means that optimal therapy in one case might have little benefit in another.

The relatively new evidence that HS activity is not confined to lesional skin might be the most important recent step toward new strategies to target disease. These studies were performed by Kristina Navrazhina, MD, PhD, now a resident in dermatology at the Icahn School of Medicine at Mount Sinai, New York. She received her PhD while studying HS activity in non-lesional skin. Her work has led her to conclude that the best chance for better outcomes in HS is early diagnosis and treatment. Although this is generally true of any pathology, the changes in the HS phenotype once fistulae form includes a poor response to conventional therapies. 

In fact, based on her work in evaluating HS activity in non-lesional skin, Navrazhina has shown that “many patients with modest lesions already have advanced disease.” Consistent with the premise that HS is a deeply systemic inflammatory process, nodules, considered an early manifestation, turn out to be “the tip of the iceberg.”

 

Non-Lesional HS Skin Is Inflamed

When she has employed RNA sequencing based on tape strip sampling from completely normal skin away from nodules, interleukin (IL)-17 and a broad array of other inflammatory markers were found to be upregulated. When she performed ultrasound to look for disease activity under the normal skin, she has often found tunnels already formed. Doppler ultrasound showed some of these tunnels were actively draining.

This might provide a partial explanation for why therapies are not always effective even when clinical signs of disease are modest. 

“Are we missing the opportunity for intervening?” Navrazhina asked, noting that early intervention has been limited traditionally by extremely long diagnostic delays. Citing the literature, Navrazhina said the average delay is 7 years for HS versus 1 year for psoriasis. Patients often cycle through 3 or 4 providers before the diagnosis is made, she said.

Awakening first-line clinicians to the signs and symptoms of HS, whether in the emergency room or primary care, is a critical message because of the incrementally difficult task to control disease once fistulae have formed. 

Krueger made the same appeal. For the neutrophilic inflammation that characterizes nodules, targeted therapies are often effective, but he agreed that available therapies are generally far less so once tunnels form.

 

Role Seen for Bacteria in HS Pathogenesis

One reason might be an interaction between anaerobic bacteria and the keratinocytes that form the tunnel walls, according to Krueger. Although HS is not typically considered an infectious disease, he reported that the interaction of these bacteria with keratinocytes is associated with expression of approximately 1000 inflammatory gene products. The process of tunnel formation is traced to how factors recruited by upregulated inflammation, such as chemokines, coordinate.

He described recent work pursing novel strategies such as highly targeted antibiotics or inhibitors of complement factor C5a, which has been proposed as a biomarker for HS, to intervene in preventing or reversing HS tunnels. 

While this work progresses, one of the most Important unmet needs in HS is an accepted measure of clinically meaningful improvement in advanced disease, particularly the impact of therapy on HS tunnels, according to Krueger. 

“There is no measure of tunnel activity that the FDA accepts in evaluating drugs,” he noted, which will be essential for approving therapies that offer this benefit. 

A phase 3 trials program for one of the promising drugs, sonelokimab, was announced early in 2024. A nanobody that targets IL-17A/A, IL-17A/F, and IL-17F/F, the small size of this molecule permits exceptional tissue penetration while the broad anti-IL-17 activity has a high degree of theoretical potential in late-stage HS, according to Krueger. 

There are numerous pieces of the HS puzzle that are still missing, but both Krueger and Navrazhina are enthusiastic about new targets and opportunities for disease control that are stemming from a better understanding of the underlying pathophysiology. Not least, both indicated that testing for inflammatory phenotypes will allow for individualized therapeutic choices with a maximum likelihood of response, particularly if earlier diagnosis permits earlier treatment. 

“Due to the heterogeneity of HS, it is hard to know who will respond to which treatment or which treatment should be started first,” Navrazhina said. She thinks that early measures of the inflammatory profile in nodules or even non-lesional skin might provide that guidance. 

Both Krueger and Navrazhina reported no financial relationships relevant to this work. 

 

A version of this article appeared on Medscape.com.