Psoriasis

TOPLINE:

Zasocitinib, a tyrosine kinase 2 (TYK2) inhibitor, at oral doses of ≥ 5 mg led to greater skin clearance than placebo over a period of 12 weeks, in a phase 2b study.
 

METHODOLOGY:

• Researchers performed a phase 2b, randomized, double-blind trial to assess the efficacy, safety, and tolerability of different doses of zasocitinib in adults with moderate to severe psoriasis (mean age, 47 years; 32% women) at 47 centers in the United States and eight centers in Canada. Most (83%) were White, 7% were Black, and 8% were Asian.
• A total of 287 patients were randomly assigned to receive one of the four oral doses of zasocitinib (2 mg, 5 mg, 15 mg, or 30 mg, once daily) or a matched placebo for 12 weeks, followed by a 4-week safety monitoring period.
• The primary outcome was the proportion of patients achieving a ≥ 75% improvement in the Psoriasis Area and Severity Index score (PASI 75) from baseline at week 12.

TAKEAWAY:

• At week 12, PASI 75 was achieved by 18%, 44%, 68%, and 67% of patients receiving zasocitinib at doses of 2 mg, 5 mg, 15 mg, and 30 mg, respectively, vs 6% of patients receiving placebo.
• PASI 90 was achieved in 8%, 21%, 45%, and 46% of patients receiving zasocitinib at 2 mg, 5 mg, 15 mg, and 30 mg, respectively, and in no patients in the placebo group.
• At week 12, 10%, 27%, 49%, and 52% of patients receiving zasocitinib at 2 mg, 5 mg, 15 mg, and 30 mg, respectively, had no or mild disease (a score of 0 or 1) according to the Physician Global Assessment tool vs 4% in the placebo group.
• Treatment-emergent adverse events occurred in 53%-62% of patients in the zasocitinib groups compared with 44% in the placebo group. The most common were COVID-19, acne/acneiform dermatitis, and diarrhea. There were no reports of major adverse cardiovascular events, thromboembolic events, or opportunistic infections.

IN PRACTICE:

“Zasocitinib, an advanced, potent, and highly selective oral TYK2 inhibitor bioengineered to optimize target coverage and functional selectivity, achieved biologic-level efficacy with complete skin clearance observed after only a 12-week treatment period in up to one third of patients, with a low incidence of known tolerability issues and absence of serious toxic effects that are characteristic of [Janus kinase] 1-3 inhibition,” the authors wrote.

SOURCE:

The study was led by April W. Armstrong, MD, MPH, University of California, Los Angeles, and was published online on August 21, 2024, in JAMA Dermatology.
 

LIMITATIONS:

The study was limited by a relatively small sample size and a short duration. In addition, the inclusion of predominantly White patients may limit the generalizability of findings to a diverse population.
 

DISCLOSURES:

The study was funded by Nimbus Discovery, which includes Nimbus Therapeutics and Nimbus Lakshmi. Dr. Armstrong’s disclosures included receiving grants and/or personal fees from various pharmaceutical companies, including Nimbus Therapeutics and Nimbus. Three authors were employees of and reported holding equity, stocks, or shares in Nimbus. Several authors had disclosures related to pharmaceutical companies, including Nimbus.

This article was created 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:

Zasocitinib, a tyrosine kinase 2 (TYK2) inhibitor, at oral doses of ≥ 5 mg led to greater skin clearance than placebo over a period of 12 weeks, in a phase 2b study.
 

METHODOLOGY:

• Researchers performed a phase 2b, randomized, double-blind trial to assess the efficacy, safety, and tolerability of different doses of zasocitinib in adults with moderate to severe psoriasis (mean age, 47 years; 32% women) at 47 centers in the United States and eight centers in Canada. Most (83%) were White, 7% were Black, and 8% were Asian.
• A total of 287 patients were randomly assigned to receive one of the four oral doses of zasocitinib (2 mg, 5 mg, 15 mg, or 30 mg, once daily) or a matched placebo for 12 weeks, followed by a 4-week safety monitoring period.
• The primary outcome was the proportion of patients achieving a ≥ 75% improvement in the Psoriasis Area and Severity Index score (PASI 75) from baseline at week 12.

TAKEAWAY:

• At week 12, PASI 75 was achieved by 18%, 44%, 68%, and 67% of patients receiving zasocitinib at doses of 2 mg, 5 mg, 15 mg, and 30 mg, respectively, vs 6% of patients receiving placebo.
• PASI 90 was achieved in 8%, 21%, 45%, and 46% of patients receiving zasocitinib at 2 mg, 5 mg, 15 mg, and 30 mg, respectively, and in no patients in the placebo group.
• At week 12, 10%, 27%, 49%, and 52% of patients receiving zasocitinib at 2 mg, 5 mg, 15 mg, and 30 mg, respectively, had no or mild disease (a score of 0 or 1) according to the Physician Global Assessment tool vs 4% in the placebo group.
• Treatment-emergent adverse events occurred in 53%-62% of patients in the zasocitinib groups compared with 44% in the placebo group. The most common were COVID-19, acne/acneiform dermatitis, and diarrhea. There were no reports of major adverse cardiovascular events, thromboembolic events, or opportunistic infections.

IN PRACTICE:

“Zasocitinib, an advanced, potent, and highly selective oral TYK2 inhibitor bioengineered to optimize target coverage and functional selectivity, achieved biologic-level efficacy with complete skin clearance observed after only a 12-week treatment period in up to one third of patients, with a low incidence of known tolerability issues and absence of serious toxic effects that are characteristic of [Janus kinase] 1-3 inhibition,” the authors wrote.

SOURCE:

The study was led by April W. Armstrong, MD, MPH, University of California, Los Angeles, and was published online on August 21, 2024, in JAMA Dermatology.
 

LIMITATIONS:

The study was limited by a relatively small sample size and a short duration. In addition, the inclusion of predominantly White patients may limit the generalizability of findings to a diverse population.
 

DISCLOSURES:

The study was funded by Nimbus Discovery, which includes Nimbus Therapeutics and Nimbus Lakshmi. Dr. Armstrong’s disclosures included receiving grants and/or personal fees from various pharmaceutical companies, including Nimbus Therapeutics and Nimbus. Three authors were employees of and reported holding equity, stocks, or shares in Nimbus. Several authors had disclosures related to pharmaceutical companies, including Nimbus.

This article was created 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:

Zasocitinib, a tyrosine kinase 2 (TYK2) inhibitor, at oral doses of ≥ 5 mg led to greater skin clearance than placebo over a period of 12 weeks, in a phase 2b study.
 

METHODOLOGY:

• Researchers performed a phase 2b, randomized, double-blind trial to assess the efficacy, safety, and tolerability of different doses of zasocitinib in adults with moderate to severe psoriasis (mean age, 47 years; 32% women) at 47 centers in the United States and eight centers in Canada. Most (83%) were White, 7% were Black, and 8% were Asian.
• A total of 287 patients were randomly assigned to receive one of the four oral doses of zasocitinib (2 mg, 5 mg, 15 mg, or 30 mg, once daily) or a matched placebo for 12 weeks, followed by a 4-week safety monitoring period.
• The primary outcome was the proportion of patients achieving a ≥ 75% improvement in the Psoriasis Area and Severity Index score (PASI 75) from baseline at week 12.

TAKEAWAY:

• At week 12, PASI 75 was achieved by 18%, 44%, 68%, and 67% of patients receiving zasocitinib at doses of 2 mg, 5 mg, 15 mg, and 30 mg, respectively, vs 6% of patients receiving placebo.
• PASI 90 was achieved in 8%, 21%, 45%, and 46% of patients receiving zasocitinib at 2 mg, 5 mg, 15 mg, and 30 mg, respectively, and in no patients in the placebo group.
• At week 12, 10%, 27%, 49%, and 52% of patients receiving zasocitinib at 2 mg, 5 mg, 15 mg, and 30 mg, respectively, had no or mild disease (a score of 0 or 1) according to the Physician Global Assessment tool vs 4% in the placebo group.
• Treatment-emergent adverse events occurred in 53%-62% of patients in the zasocitinib groups compared with 44% in the placebo group. The most common were COVID-19, acne/acneiform dermatitis, and diarrhea. There were no reports of major adverse cardiovascular events, thromboembolic events, or opportunistic infections.

IN PRACTICE:

“Zasocitinib, an advanced, potent, and highly selective oral TYK2 inhibitor bioengineered to optimize target coverage and functional selectivity, achieved biologic-level efficacy with complete skin clearance observed after only a 12-week treatment period in up to one third of patients, with a low incidence of known tolerability issues and absence of serious toxic effects that are characteristic of [Janus kinase] 1-3 inhibition,” the authors wrote.

SOURCE:

The study was led by April W. Armstrong, MD, MPH, University of California, Los Angeles, and was published online on August 21, 2024, in JAMA Dermatology.
 

LIMITATIONS:

The study was limited by a relatively small sample size and a short duration. In addition, the inclusion of predominantly White patients may limit the generalizability of findings to a diverse population.
 

DISCLOSURES:

The study was funded by Nimbus Discovery, which includes Nimbus Therapeutics and Nimbus Lakshmi. Dr. Armstrong’s disclosures included receiving grants and/or personal fees from various pharmaceutical companies, including Nimbus Therapeutics and Nimbus. Three authors were employees of and reported holding equity, stocks, or shares in Nimbus. Several authors had disclosures related to pharmaceutical companies, including Nimbus.

This article was created 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:

Compared with dipeptidyl peptidase 4 (DPP-4) inhibitors, glucagon-like peptide 1 receptor agonists (GLP-1 RAs) are associated with a lower risk for all-cause mortality and major adverse cardiovascular events (MACE) in patients with immune-mediated inflammatory diseases (IMIDs) and type 2 diabetes (T2D).

METHODOLOGY:

• GLP-1 RAs reduce the risk for all-cause mortality, cardiovascular mortality, and stroke in patients with diabetes. However, previous trials have excluded those with IMIDs, leaving a gap in understanding the cardioprotective effects of GLP-1 RAs in this population.
• Researchers conducted a population-based cohort study to assess if patients with an IMID derive greater benefits from GLP-1 RAs than DPP-4 inhibitors.
• They used administrative health data from British Columbia, Canada, to include 10,855 patients with IMIDs (rheumatoid arthritis, psoriatic disease, ankylosing spondylitis, inflammatory bowel disease, or systemic autoimmune rheumatic disease) and T2D who initiated either GLP-1 RA (n = 3570) or DPP-4 inhibitor (n = 7285).
• The mean follow-up was 1.46 and 1.88 years in the GLP-1 RA and DPP-4 inhibitor cohorts, respectively.
• The primary outcome was all-cause mortality, and the secondary outcome was MACE, including cardiovascular death, myocardial infarction, and ischemic stroke.

TAKEAWAY:

• The risk for all-cause mortality was 52% lower in patients who initiated GLP-1 RAs than in those who initiated DPP-4 inhibitors (weighted hazard ratio [HR], 0.48; 95% CI, 0.31-0.75).
• Additionally, patients initiating DPP-4 inhibitors.
• In the subgroup of patients with GLP-1 RAs had a significantly lower risk for MACE (weighted HR, 0.66; 95% CI, 0.50-0.88), particularly myocardial infarction (weighted HR, 0.62; 95% CI, 0.40-0.96), than those initiating rheumatoid arthritis and T2D, those who initiated GLP-1 RAs had a 55% lower risk for all-cause mortality and 61% lower risk for MACE than those who initiated DPP-4 inhibitors.

IN PRACTICE:

“This corresponds to nine fewer deaths and 11 fewer MACE per 1000 person-years, respectively, supporting the hypothesis that these agents have a cardioprotective effect in this high-risk population,” the authors wrote.

SOURCE:

This study was led by Derin Karacabeyli, MD, Division of Rheumatology, Department of Medicine, University of British Columbia, Vancouver, Canada, and was published online on August 8, 2024, in PLOS ONE.

LIMITATIONS:

The study’s dependence on administrative health data might have resulted in incomplete capture of comorbidities, particularly obesity. The mean follow-up period was relatively short, which might have limited the long-term applicability of these findings. The accuracy of the case definitions for IMIDs and T2D, according to International Classification of Diseases codes, could not be fully ascertained.

DISCLOSURES:

The study was supported by grants from the Canadian Institutes of Health Research. Two authors declared receiving research support, consulting fees, or participating in advisory boards outside the submitted work.

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

TOPLINE:

Compared with dipeptidyl peptidase 4 (DPP-4) inhibitors, glucagon-like peptide 1 receptor agonists (GLP-1 RAs) are associated with a lower risk for all-cause mortality and major adverse cardiovascular events (MACE) in patients with immune-mediated inflammatory diseases (IMIDs) and type 2 diabetes (T2D).

METHODOLOGY:

• GLP-1 RAs reduce the risk for all-cause mortality, cardiovascular mortality, and stroke in patients with diabetes. However, previous trials have excluded those with IMIDs, leaving a gap in understanding the cardioprotective effects of GLP-1 RAs in this population.
• Researchers conducted a population-based cohort study to assess if patients with an IMID derive greater benefits from GLP-1 RAs than DPP-4 inhibitors.
• They used administrative health data from British Columbia, Canada, to include 10,855 patients with IMIDs (rheumatoid arthritis, psoriatic disease, ankylosing spondylitis, inflammatory bowel disease, or systemic autoimmune rheumatic disease) and T2D who initiated either GLP-1 RA (n = 3570) or DPP-4 inhibitor (n = 7285).
• The mean follow-up was 1.46 and 1.88 years in the GLP-1 RA and DPP-4 inhibitor cohorts, respectively.
• The primary outcome was all-cause mortality, and the secondary outcome was MACE, including cardiovascular death, myocardial infarction, and ischemic stroke.

TAKEAWAY:

• The risk for all-cause mortality was 52% lower in patients who initiated GLP-1 RAs than in those who initiated DPP-4 inhibitors (weighted hazard ratio [HR], 0.48; 95% CI, 0.31-0.75).
• Additionally, patients initiating DPP-4 inhibitors.
• In the subgroup of patients with GLP-1 RAs had a significantly lower risk for MACE (weighted HR, 0.66; 95% CI, 0.50-0.88), particularly myocardial infarction (weighted HR, 0.62; 95% CI, 0.40-0.96), than those initiating rheumatoid arthritis and T2D, those who initiated GLP-1 RAs had a 55% lower risk for all-cause mortality and 61% lower risk for MACE than those who initiated DPP-4 inhibitors.

IN PRACTICE:

“This corresponds to nine fewer deaths and 11 fewer MACE per 1000 person-years, respectively, supporting the hypothesis that these agents have a cardioprotective effect in this high-risk population,” the authors wrote.

SOURCE:

This study was led by Derin Karacabeyli, MD, Division of Rheumatology, Department of Medicine, University of British Columbia, Vancouver, Canada, and was published online on August 8, 2024, in PLOS ONE.

LIMITATIONS:

The study’s dependence on administrative health data might have resulted in incomplete capture of comorbidities, particularly obesity. The mean follow-up period was relatively short, which might have limited the long-term applicability of these findings. The accuracy of the case definitions for IMIDs and T2D, according to International Classification of Diseases codes, could not be fully ascertained.

DISCLOSURES:

The study was supported by grants from the Canadian Institutes of Health Research. Two authors declared receiving research support, consulting fees, or participating in advisory boards outside the submitted work.

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

TOPLINE:

Compared with dipeptidyl peptidase 4 (DPP-4) inhibitors, glucagon-like peptide 1 receptor agonists (GLP-1 RAs) are associated with a lower risk for all-cause mortality and major adverse cardiovascular events (MACE) in patients with immune-mediated inflammatory diseases (IMIDs) and type 2 diabetes (T2D).

METHODOLOGY:

• GLP-1 RAs reduce the risk for all-cause mortality, cardiovascular mortality, and stroke in patients with diabetes. However, previous trials have excluded those with IMIDs, leaving a gap in understanding the cardioprotective effects of GLP-1 RAs in this population.
• Researchers conducted a population-based cohort study to assess if patients with an IMID derive greater benefits from GLP-1 RAs than DPP-4 inhibitors.
• They used administrative health data from British Columbia, Canada, to include 10,855 patients with IMIDs (rheumatoid arthritis, psoriatic disease, ankylosing spondylitis, inflammatory bowel disease, or systemic autoimmune rheumatic disease) and T2D who initiated either GLP-1 RA (n = 3570) or DPP-4 inhibitor (n = 7285).
• The mean follow-up was 1.46 and 1.88 years in the GLP-1 RA and DPP-4 inhibitor cohorts, respectively.
• The primary outcome was all-cause mortality, and the secondary outcome was MACE, including cardiovascular death, myocardial infarction, and ischemic stroke.

TAKEAWAY:

• The risk for all-cause mortality was 52% lower in patients who initiated GLP-1 RAs than in those who initiated DPP-4 inhibitors (weighted hazard ratio [HR], 0.48; 95% CI, 0.31-0.75).
• Additionally, patients initiating DPP-4 inhibitors.
• In the subgroup of patients with GLP-1 RAs had a significantly lower risk for MACE (weighted HR, 0.66; 95% CI, 0.50-0.88), particularly myocardial infarction (weighted HR, 0.62; 95% CI, 0.40-0.96), than those initiating rheumatoid arthritis and T2D, those who initiated GLP-1 RAs had a 55% lower risk for all-cause mortality and 61% lower risk for MACE than those who initiated DPP-4 inhibitors.

IN PRACTICE:

“This corresponds to nine fewer deaths and 11 fewer MACE per 1000 person-years, respectively, supporting the hypothesis that these agents have a cardioprotective effect in this high-risk population,” the authors wrote.

SOURCE:

This study was led by Derin Karacabeyli, MD, Division of Rheumatology, Department of Medicine, University of British Columbia, Vancouver, Canada, and was published online on August 8, 2024, in PLOS ONE.

LIMITATIONS:

The study’s dependence on administrative health data might have resulted in incomplete capture of comorbidities, particularly obesity. The mean follow-up period was relatively short, which might have limited the long-term applicability of these findings. The accuracy of the case definitions for IMIDs and T2D, according to International Classification of Diseases codes, could not be fully ascertained.

DISCLOSURES:

The study was supported by grants from the Canadian Institutes of Health Research. Two authors declared receiving research support, consulting fees, or participating in advisory boards outside the submitted work.

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

Since the first Food and Drug Administration approval of a Janus kinase (JAK) inhibitor in 2011, the number of these medications available — and their treatment indications — have continued to grow. Prescribing physicians are familiar with the benefits and risks for these drugs, including higher risk for cardiac events and malignancy; however, one adverse effect may be overlooked, especially by specialties outside of dermatology: acne. Though less serious than some other side effects, JAK inhibitor–associated acne — JAKne, for short — can be a concern for patients.

“Your physical appearance and how you present yourself to the world is an important part of your self-confidence and living life on your own terms,” said Arash Mostaghimi, MD, the director of inpatient dermatology at Brigham and Women’s Hospital in Boston, Massachusetts. “I think letting people know about [JAKne] and then addressing it when it occurs should be a normal part of managing these medications.”
 

What Is JAKne?

JAKne generally looks like other kinds of acne, explained Janelle Nassim, MD, director of laser and cosmetic dermatology at the Indiana University School of Medicine, Indianapolis. “It can affect the same areas that typical acne affects, including the face, chest, back, neck, and upper shoulders.”

Though it appears like typical forms of acne, it is not clear what drives these skin eruptions in patients taking JAK inhibitors.

courtesy Brigham and Women's Hospital

“We don’t understand the underlying pathophysiology,” Dr. Mostaghimi said. “It looks like acne, but we don’t know if the exact underlying inflammatory process is the same or if it’s different.”

In a 2023 systematic review of clinical studies, Dr. Mostaghimi and colleagues found that patients on any JAK inhibitor were nearly four times more likely to experience acne than patients who received placebo, but risk varied between medications. Patients taking JAK inhibitors for skin conditions had higher risk for acne than those given the medications for other indications. However, Dr. Mostaghimi thinks this finding is the result of selection bias.

Participants may not mention side effects like acne in trials for rheumatologic or gastrointestinal conditions, he said, unlike in trials for skin conditions. “Clinically, I’ve seen it in patients across every indication.”

Patients with a history of acne seem to be more likely to develop this side effect, though formal studies looking into risk factors are lacking. In Dr. Mostaghimi’s own clinical experience, JAKne is also more common in younger patients, but it can happen to anyone. “I’ve seen 70-year-olds develop acne — patients who’ve never had an issue their whole life — when they’re taking a JAK inhibitor.”

This issue also appears to be more common earlier in treatment, he added, and may improve over time as a patient continues with the medication.
 

How Do You Treat It?

“I think in other specialties, you will often feel awkward addressing skin conditions or pointing out acne,” Dr. Mostaghimi said. The most important steps are being aware of this potential side effect, and if you see it practice, to bring it up.

“Say: I’m noticing there’s some changes in your skin. Some patients on JAK inhibitors develop more acne. Have you noticed this? And if so, is this bothering you?”

Generally, JAKne is mild to moderate, explained Dr. Nassim, and if non-dermatologists are comfortable, they can prescribe a first-line topical regimen for patients. Dr. Mostaghimi recommends prescribing a clindamycin 1% lotion or gel. In addition, patients can use a benzoyl peroxide wash (4% or 10%) combined with a gentle retinoid, such as adapalene. (Both of these treatments are now available over the counter.)

courtesy Harvard Medical School

In patients with scalp or hairline involvement, he often prescribes a ketoconazole 2% shampoo, which patients can use to wash their scalp, face, chest, and back in the shower.

If they aren’t responding to these initial treatments, then refer to a dermatologist for further assessment.

“Ultimately, referring to a dermatologist is the best course of action,” Dr. Nassim said. “I have had patients on JAK inhibitors who improved with topical acne treatments, and some that required more aggressive treatment with oral medications.”

Dr. Mostaghimi reported consulting fees from AbbVie, Concert Pharmaceuticals, Pfizer, and 3Derm Systems; research funding from Incyte, Aclaris Therapeutics, Eli Lilly, and Concert Pharmaceuticals; personal fees from Equillium, ASLAN Pharmaceuticals, ACOM, and Boehringer Ingelheim; and advisory board fees from Fig.1 Beauty, Eli Lilly, Pfizer, and Hims & Hers Health. Dr. Nassim had no relevant disclosures.

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

Since the first Food and Drug Administration approval of a Janus kinase (JAK) inhibitor in 2011, the number of these medications available — and their treatment indications — have continued to grow. Prescribing physicians are familiar with the benefits and risks for these drugs, including higher risk for cardiac events and malignancy; however, one adverse effect may be overlooked, especially by specialties outside of dermatology: acne. Though less serious than some other side effects, JAK inhibitor–associated acne — JAKne, for short — can be a concern for patients.

“Your physical appearance and how you present yourself to the world is an important part of your self-confidence and living life on your own terms,” said Arash Mostaghimi, MD, the director of inpatient dermatology at Brigham and Women’s Hospital in Boston, Massachusetts. “I think letting people know about [JAKne] and then addressing it when it occurs should be a normal part of managing these medications.”
 

What Is JAKne?

JAKne generally looks like other kinds of acne, explained Janelle Nassim, MD, director of laser and cosmetic dermatology at the Indiana University School of Medicine, Indianapolis. “It can affect the same areas that typical acne affects, including the face, chest, back, neck, and upper shoulders.”

Though it appears like typical forms of acne, it is not clear what drives these skin eruptions in patients taking JAK inhibitors.

courtesy Brigham and Women's Hospital

“We don’t understand the underlying pathophysiology,” Dr. Mostaghimi said. “It looks like acne, but we don’t know if the exact underlying inflammatory process is the same or if it’s different.”

In a 2023 systematic review of clinical studies, Dr. Mostaghimi and colleagues found that patients on any JAK inhibitor were nearly four times more likely to experience acne than patients who received placebo, but risk varied between medications. Patients taking JAK inhibitors for skin conditions had higher risk for acne than those given the medications for other indications. However, Dr. Mostaghimi thinks this finding is the result of selection bias.

Participants may not mention side effects like acne in trials for rheumatologic or gastrointestinal conditions, he said, unlike in trials for skin conditions. “Clinically, I’ve seen it in patients across every indication.”

Patients with a history of acne seem to be more likely to develop this side effect, though formal studies looking into risk factors are lacking. In Dr. Mostaghimi’s own clinical experience, JAKne is also more common in younger patients, but it can happen to anyone. “I’ve seen 70-year-olds develop acne — patients who’ve never had an issue their whole life — when they’re taking a JAK inhibitor.”

This issue also appears to be more common earlier in treatment, he added, and may improve over time as a patient continues with the medication.
 

How Do You Treat It?

“I think in other specialties, you will often feel awkward addressing skin conditions or pointing out acne,” Dr. Mostaghimi said. The most important steps are being aware of this potential side effect, and if you see it practice, to bring it up.

“Say: I’m noticing there’s some changes in your skin. Some patients on JAK inhibitors develop more acne. Have you noticed this? And if so, is this bothering you?”

Generally, JAKne is mild to moderate, explained Dr. Nassim, and if non-dermatologists are comfortable, they can prescribe a first-line topical regimen for patients. Dr. Mostaghimi recommends prescribing a clindamycin 1% lotion or gel. In addition, patients can use a benzoyl peroxide wash (4% or 10%) combined with a gentle retinoid, such as adapalene. (Both of these treatments are now available over the counter.)

courtesy Harvard Medical School

In patients with scalp or hairline involvement, he often prescribes a ketoconazole 2% shampoo, which patients can use to wash their scalp, face, chest, and back in the shower.

If they aren’t responding to these initial treatments, then refer to a dermatologist for further assessment.

“Ultimately, referring to a dermatologist is the best course of action,” Dr. Nassim said. “I have had patients on JAK inhibitors who improved with topical acne treatments, and some that required more aggressive treatment with oral medications.”

Dr. Mostaghimi reported consulting fees from AbbVie, Concert Pharmaceuticals, Pfizer, and 3Derm Systems; research funding from Incyte, Aclaris Therapeutics, Eli Lilly, and Concert Pharmaceuticals; personal fees from Equillium, ASLAN Pharmaceuticals, ACOM, and Boehringer Ingelheim; and advisory board fees from Fig.1 Beauty, Eli Lilly, Pfizer, and Hims & Hers Health. Dr. Nassim had no relevant disclosures.

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

Since the first Food and Drug Administration approval of a Janus kinase (JAK) inhibitor in 2011, the number of these medications available — and their treatment indications — have continued to grow. Prescribing physicians are familiar with the benefits and risks for these drugs, including higher risk for cardiac events and malignancy; however, one adverse effect may be overlooked, especially by specialties outside of dermatology: acne. Though less serious than some other side effects, JAK inhibitor–associated acne — JAKne, for short — can be a concern for patients.

“Your physical appearance and how you present yourself to the world is an important part of your self-confidence and living life on your own terms,” said Arash Mostaghimi, MD, the director of inpatient dermatology at Brigham and Women’s Hospital in Boston, Massachusetts. “I think letting people know about [JAKne] and then addressing it when it occurs should be a normal part of managing these medications.”
 

What Is JAKne?

JAKne generally looks like other kinds of acne, explained Janelle Nassim, MD, director of laser and cosmetic dermatology at the Indiana University School of Medicine, Indianapolis. “It can affect the same areas that typical acne affects, including the face, chest, back, neck, and upper shoulders.”

Though it appears like typical forms of acne, it is not clear what drives these skin eruptions in patients taking JAK inhibitors.

courtesy Brigham and Women's Hospital

“We don’t understand the underlying pathophysiology,” Dr. Mostaghimi said. “It looks like acne, but we don’t know if the exact underlying inflammatory process is the same or if it’s different.”

In a 2023 systematic review of clinical studies, Dr. Mostaghimi and colleagues found that patients on any JAK inhibitor were nearly four times more likely to experience acne than patients who received placebo, but risk varied between medications. Patients taking JAK inhibitors for skin conditions had higher risk for acne than those given the medications for other indications. However, Dr. Mostaghimi thinks this finding is the result of selection bias.

Participants may not mention side effects like acne in trials for rheumatologic or gastrointestinal conditions, he said, unlike in trials for skin conditions. “Clinically, I’ve seen it in patients across every indication.”

Patients with a history of acne seem to be more likely to develop this side effect, though formal studies looking into risk factors are lacking. In Dr. Mostaghimi’s own clinical experience, JAKne is also more common in younger patients, but it can happen to anyone. “I’ve seen 70-year-olds develop acne — patients who’ve never had an issue their whole life — when they’re taking a JAK inhibitor.”

This issue also appears to be more common earlier in treatment, he added, and may improve over time as a patient continues with the medication.
 

How Do You Treat It?

“I think in other specialties, you will often feel awkward addressing skin conditions or pointing out acne,” Dr. Mostaghimi said. The most important steps are being aware of this potential side effect, and if you see it practice, to bring it up.

“Say: I’m noticing there’s some changes in your skin. Some patients on JAK inhibitors develop more acne. Have you noticed this? And if so, is this bothering you?”

Generally, JAKne is mild to moderate, explained Dr. Nassim, and if non-dermatologists are comfortable, they can prescribe a first-line topical regimen for patients. Dr. Mostaghimi recommends prescribing a clindamycin 1% lotion or gel. In addition, patients can use a benzoyl peroxide wash (4% or 10%) combined with a gentle retinoid, such as adapalene. (Both of these treatments are now available over the counter.)

courtesy Harvard Medical School

In patients with scalp or hairline involvement, he often prescribes a ketoconazole 2% shampoo, which patients can use to wash their scalp, face, chest, and back in the shower.

If they aren’t responding to these initial treatments, then refer to a dermatologist for further assessment.

“Ultimately, referring to a dermatologist is the best course of action,” Dr. Nassim said. “I have had patients on JAK inhibitors who improved with topical acne treatments, and some that required more aggressive treatment with oral medications.”

Dr. Mostaghimi reported consulting fees from AbbVie, Concert Pharmaceuticals, Pfizer, and 3Derm Systems; research funding from Incyte, Aclaris Therapeutics, Eli Lilly, and Concert Pharmaceuticals; personal fees from Equillium, ASLAN Pharmaceuticals, ACOM, and Boehringer Ingelheim; and advisory board fees from Fig.1 Beauty, Eli Lilly, Pfizer, and Hims & Hers Health. Dr. Nassim had no relevant disclosures.

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

TOPLINE: 

Patients with psoriasis, uveitis, or colitis who present with undiagnosed chronic back pain should be referred to a rheumatologist for the assessment of axial spondyloarthritis (axSpA), with MRI being a more accurate diagnostic method than clinical features.

METHODOLOGY:

• Researchers assessed the prevalence of axSpA according to the extra-articular presentation and human leukocyte antigen B27 (HLA-B27) status in two Canadian cohorts (SASPIC 1 and 2).
• Overall, 363 adult patients aged ≤ 45 years with psoriasis, uveitis, or colitis who presented with chronic undiagnosed back and/or buttock pain lasting 3 months or more were included.
• Participants were referred to rheumatologists with expertise in axSpA for structured diagnostic evaluations, including history, physical exam, levels of C-reactive protein, HLA-B27 status, and imaging studies.
• An MRI of the sacroiliac joints was conducted in all patients in the SASPIC-2 cohort and in 62.3% of those in the SASPIC-1 cohort.
• The primary outcome was the proportion of patients diagnosed with axSpA after final global evaluation, and the secondary outcome was the impact of MRI on diagnosis and classification.

TAKEAWAY:

• AxSpA diagnoses were made in 46.7% with psoriasis, 61.6% with uveitis, and 46.8% with colitis in the SASPIC-1 cohort and in 23.5%, 57.9%, and 23.3%, respectively, in the SASPIC-2 cohort.
• Being positive for HLA-B27 was linked to the presence of axSpA in 56%-88% of those in both the cohorts.
• Musculoskeletal clinical features were not helpful in differentiating between patients with and without axSpA.
• In both the cohorts, the MRI of the sacroiliac joints was indicative of axSpA in a significantly greater number of patients with psoriasis, uveitis, or colitis who were diagnosed with axSpA than in those not diagnosed with axSpA (P < .05 for all).

IN PRACTICE:

“Our data supports the benefit of recent referral recommendations that advocate referral to a rheumatologist of patients with chronic back pain and extra-articular features related to axSpA,” the authors wrote.

SOURCE:

The study was led by Walter P. Maksymowych, MB ChB, University of Alberta, Edmonton, Alberta, Canada. It was published online in Arthritis & Rheumatology.

LIMITATIONS: 

MRI readers had to rely on their own expertise to decide if an MRI was indeed positive and thus indicative of axSpA. This study included only patients with undiagnosed back pain, and a longer follow-up duration could have led to a higher number of patients being diagnosed with axial inflammation. In SASPIC-1, local rheumatologists conducted MRI evaluations of the spinal lesions only when necessary, while in SASPIC-2, MRI of only the sacroiliac joints was required.

DISCLOSURES:

SASPIC-1 was supported by AbbVie Canada and Janssen Canada, and SASPIC-2 was supported by AbbVie Canada. The authors disclosed receiving grants, consulting fees, speaking fees, and/or honoraria and having other ties with AbbVie and several other pharmaceutical companies.

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

TOPLINE: 

Patients with psoriasis, uveitis, or colitis who present with undiagnosed chronic back pain should be referred to a rheumatologist for the assessment of axial spondyloarthritis (axSpA), with MRI being a more accurate diagnostic method than clinical features.

METHODOLOGY:

• Researchers assessed the prevalence of axSpA according to the extra-articular presentation and human leukocyte antigen B27 (HLA-B27) status in two Canadian cohorts (SASPIC 1 and 2).
• Overall, 363 adult patients aged ≤ 45 years with psoriasis, uveitis, or colitis who presented with chronic undiagnosed back and/or buttock pain lasting 3 months or more were included.
• Participants were referred to rheumatologists with expertise in axSpA for structured diagnostic evaluations, including history, physical exam, levels of C-reactive protein, HLA-B27 status, and imaging studies.
• An MRI of the sacroiliac joints was conducted in all patients in the SASPIC-2 cohort and in 62.3% of those in the SASPIC-1 cohort.
• The primary outcome was the proportion of patients diagnosed with axSpA after final global evaluation, and the secondary outcome was the impact of MRI on diagnosis and classification.

TAKEAWAY:

• AxSpA diagnoses were made in 46.7% with psoriasis, 61.6% with uveitis, and 46.8% with colitis in the SASPIC-1 cohort and in 23.5%, 57.9%, and 23.3%, respectively, in the SASPIC-2 cohort.
• Being positive for HLA-B27 was linked to the presence of axSpA in 56%-88% of those in both the cohorts.
• Musculoskeletal clinical features were not helpful in differentiating between patients with and without axSpA.
• In both the cohorts, the MRI of the sacroiliac joints was indicative of axSpA in a significantly greater number of patients with psoriasis, uveitis, or colitis who were diagnosed with axSpA than in those not diagnosed with axSpA (P < .05 for all).

IN PRACTICE:

“Our data supports the benefit of recent referral recommendations that advocate referral to a rheumatologist of patients with chronic back pain and extra-articular features related to axSpA,” the authors wrote.

SOURCE:

The study was led by Walter P. Maksymowych, MB ChB, University of Alberta, Edmonton, Alberta, Canada. It was published online in Arthritis & Rheumatology.

LIMITATIONS: 

MRI readers had to rely on their own expertise to decide if an MRI was indeed positive and thus indicative of axSpA. This study included only patients with undiagnosed back pain, and a longer follow-up duration could have led to a higher number of patients being diagnosed with axial inflammation. In SASPIC-1, local rheumatologists conducted MRI evaluations of the spinal lesions only when necessary, while in SASPIC-2, MRI of only the sacroiliac joints was required.

DISCLOSURES:

SASPIC-1 was supported by AbbVie Canada and Janssen Canada, and SASPIC-2 was supported by AbbVie Canada. The authors disclosed receiving grants, consulting fees, speaking fees, and/or honoraria and having other ties with AbbVie and several other pharmaceutical companies.

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

TOPLINE: 

Patients with psoriasis, uveitis, or colitis who present with undiagnosed chronic back pain should be referred to a rheumatologist for the assessment of axial spondyloarthritis (axSpA), with MRI being a more accurate diagnostic method than clinical features.

METHODOLOGY:

• Researchers assessed the prevalence of axSpA according to the extra-articular presentation and human leukocyte antigen B27 (HLA-B27) status in two Canadian cohorts (SASPIC 1 and 2).
• Overall, 363 adult patients aged ≤ 45 years with psoriasis, uveitis, or colitis who presented with chronic undiagnosed back and/or buttock pain lasting 3 months or more were included.
• Participants were referred to rheumatologists with expertise in axSpA for structured diagnostic evaluations, including history, physical exam, levels of C-reactive protein, HLA-B27 status, and imaging studies.
• An MRI of the sacroiliac joints was conducted in all patients in the SASPIC-2 cohort and in 62.3% of those in the SASPIC-1 cohort.
• The primary outcome was the proportion of patients diagnosed with axSpA after final global evaluation, and the secondary outcome was the impact of MRI on diagnosis and classification.

TAKEAWAY:

• AxSpA diagnoses were made in 46.7% with psoriasis, 61.6% with uveitis, and 46.8% with colitis in the SASPIC-1 cohort and in 23.5%, 57.9%, and 23.3%, respectively, in the SASPIC-2 cohort.
• Being positive for HLA-B27 was linked to the presence of axSpA in 56%-88% of those in both the cohorts.
• Musculoskeletal clinical features were not helpful in differentiating between patients with and without axSpA.
• In both the cohorts, the MRI of the sacroiliac joints was indicative of axSpA in a significantly greater number of patients with psoriasis, uveitis, or colitis who were diagnosed with axSpA than in those not diagnosed with axSpA (P < .05 for all).

IN PRACTICE:

“Our data supports the benefit of recent referral recommendations that advocate referral to a rheumatologist of patients with chronic back pain and extra-articular features related to axSpA,” the authors wrote.

SOURCE:

The study was led by Walter P. Maksymowych, MB ChB, University of Alberta, Edmonton, Alberta, Canada. It was published online in Arthritis & Rheumatology.

LIMITATIONS: 

MRI readers had to rely on their own expertise to decide if an MRI was indeed positive and thus indicative of axSpA. This study included only patients with undiagnosed back pain, and a longer follow-up duration could have led to a higher number of patients being diagnosed with axial inflammation. In SASPIC-1, local rheumatologists conducted MRI evaluations of the spinal lesions only when necessary, while in SASPIC-2, MRI of only the sacroiliac joints was required.

DISCLOSURES:

SASPIC-1 was supported by AbbVie Canada and Janssen Canada, and SASPIC-2 was supported by AbbVie Canada. The authors disclosed receiving grants, consulting fees, speaking fees, and/or honoraria and having other ties with AbbVie and several other pharmaceutical companies.

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

TOPLINE:

Uptake of infliximab biosimilars rose slowly across private insurance, Medicaid, and Medicare when two were available in the United States during 2016-2020 but increased significantly through 2022 after the third biosimilar became available in July 2020. However, prescriptions in Medicare still lagged behind those in private insurance and Medicaid.

METHODOLOGY:

• Researchers analyzed electronic health records from over 1100 US rheumatologists who participated in a national registry, the Rheumatology Informatics System for Effectiveness (RISE), for all infliximab administrations (bio-originator or biosimilar) to patients older than 18 years from April 2016 to September 2022.
• They conducted an interrupted time series to account for autocorrelation and model the effect of each infliximab biosimilar release (infliximab-dyyb in November 2016, infliximab-abda in July 2017, and infliximab-axxq in July 2020) on uptake across Medicare, Medicaid, and private insurers.

TAKEAWAY:

• The researchers identified 659,988 infliximab administrations for 37,560 unique patients, with 52% on Medicare, 4.8% on Medicaid, and 43% on private insurance.
• Biosimilar uptake rose slowly with average annual increases < 5% from 2016 to June 2020 (Medicare, 3.2%; Medicaid, 5.2%; private insurance, 1.8%).
• After the third biosimilar release in July 2020, the average annual increase reached 13% for Medicaid and 16.4% for private insurance but remained low for Medicare (5.6%).
• By September 2022, biosimilar uptake was higher for Medicaid (43.8%) and private insurance (38.5%) than for Medicare (24%).

IN PRACTICE:

“Our results suggest policymakers may need to do more to allow biosimilars to get a foothold in the market by incentivizing the development and entry of multiple biosimilars, address anticompetitive pricing strategies, and may need to amend Medicare policy to [incentivize] uptake in order to ensure a competitive and sustainable biosimilar market that gradually reduces total drug expenditures and out-of-pocket costs over time,” wrote the authors of the study.

SOURCE:

The study was led by Eric T. Roberts, PhD, University of California, San Francisco. It was published online on July 30, 2024, in Arthritis & Rheumatology.

LIMITATIONS:

First, while the biosimilar introductions are likely catalysts for many changes in the market, some changes in slopes may also be attributable to the natural growth of the market over time. Second, this study may neither be generalizable to academic medical centers, which are underrepresented in RISE, nor be generalizable to infliximab prescriptions from other specialties. Third, uptake among privately insured patients changed shortly after November-December 2020, raising the possibility that the delay reflected negotiations between insurance companies and relevant entities regarding formulary coverage.

DISCLOSURES:

This study was funded by grants from the Agency for Healthcare Research and Quality and the National Institute of Arthritis and Musculoskeletal and Skin Diseases. One author disclosed receiving consulting fees from Pfizer, AstraZeneca, and Bristol-Myers Squibb and grant funding from AstraZeneca, the Bristol-Myers Squibb Foundation, and Aurinia.

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

TOPLINE:

Uptake of infliximab biosimilars rose slowly across private insurance, Medicaid, and Medicare when two were available in the United States during 2016-2020 but increased significantly through 2022 after the third biosimilar became available in July 2020. However, prescriptions in Medicare still lagged behind those in private insurance and Medicaid.

METHODOLOGY:

• Researchers analyzed electronic health records from over 1100 US rheumatologists who participated in a national registry, the Rheumatology Informatics System for Effectiveness (RISE), for all infliximab administrations (bio-originator or biosimilar) to patients older than 18 years from April 2016 to September 2022.
• They conducted an interrupted time series to account for autocorrelation and model the effect of each infliximab biosimilar release (infliximab-dyyb in November 2016, infliximab-abda in July 2017, and infliximab-axxq in July 2020) on uptake across Medicare, Medicaid, and private insurers.

TAKEAWAY:

• The researchers identified 659,988 infliximab administrations for 37,560 unique patients, with 52% on Medicare, 4.8% on Medicaid, and 43% on private insurance.
• Biosimilar uptake rose slowly with average annual increases < 5% from 2016 to June 2020 (Medicare, 3.2%; Medicaid, 5.2%; private insurance, 1.8%).
• After the third biosimilar release in July 2020, the average annual increase reached 13% for Medicaid and 16.4% for private insurance but remained low for Medicare (5.6%).
• By September 2022, biosimilar uptake was higher for Medicaid (43.8%) and private insurance (38.5%) than for Medicare (24%).

IN PRACTICE:

“Our results suggest policymakers may need to do more to allow biosimilars to get a foothold in the market by incentivizing the development and entry of multiple biosimilars, address anticompetitive pricing strategies, and may need to amend Medicare policy to [incentivize] uptake in order to ensure a competitive and sustainable biosimilar market that gradually reduces total drug expenditures and out-of-pocket costs over time,” wrote the authors of the study.

SOURCE:

The study was led by Eric T. Roberts, PhD, University of California, San Francisco. It was published online on July 30, 2024, in Arthritis & Rheumatology.

LIMITATIONS:

First, while the biosimilar introductions are likely catalysts for many changes in the market, some changes in slopes may also be attributable to the natural growth of the market over time. Second, this study may neither be generalizable to academic medical centers, which are underrepresented in RISE, nor be generalizable to infliximab prescriptions from other specialties. Third, uptake among privately insured patients changed shortly after November-December 2020, raising the possibility that the delay reflected negotiations between insurance companies and relevant entities regarding formulary coverage.

DISCLOSURES:

This study was funded by grants from the Agency for Healthcare Research and Quality and the National Institute of Arthritis and Musculoskeletal and Skin Diseases. One author disclosed receiving consulting fees from Pfizer, AstraZeneca, and Bristol-Myers Squibb and grant funding from AstraZeneca, the Bristol-Myers Squibb Foundation, and Aurinia.

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

TOPLINE:

Uptake of infliximab biosimilars rose slowly across private insurance, Medicaid, and Medicare when two were available in the United States during 2016-2020 but increased significantly through 2022 after the third biosimilar became available in July 2020. However, prescriptions in Medicare still lagged behind those in private insurance and Medicaid.

METHODOLOGY:

• Researchers analyzed electronic health records from over 1100 US rheumatologists who participated in a national registry, the Rheumatology Informatics System for Effectiveness (RISE), for all infliximab administrations (bio-originator or biosimilar) to patients older than 18 years from April 2016 to September 2022.
• They conducted an interrupted time series to account for autocorrelation and model the effect of each infliximab biosimilar release (infliximab-dyyb in November 2016, infliximab-abda in July 2017, and infliximab-axxq in July 2020) on uptake across Medicare, Medicaid, and private insurers.

TAKEAWAY:

• The researchers identified 659,988 infliximab administrations for 37,560 unique patients, with 52% on Medicare, 4.8% on Medicaid, and 43% on private insurance.
• Biosimilar uptake rose slowly with average annual increases < 5% from 2016 to June 2020 (Medicare, 3.2%; Medicaid, 5.2%; private insurance, 1.8%).
• After the third biosimilar release in July 2020, the average annual increase reached 13% for Medicaid and 16.4% for private insurance but remained low for Medicare (5.6%).
• By September 2022, biosimilar uptake was higher for Medicaid (43.8%) and private insurance (38.5%) than for Medicare (24%).

IN PRACTICE:

“Our results suggest policymakers may need to do more to allow biosimilars to get a foothold in the market by incentivizing the development and entry of multiple biosimilars, address anticompetitive pricing strategies, and may need to amend Medicare policy to [incentivize] uptake in order to ensure a competitive and sustainable biosimilar market that gradually reduces total drug expenditures and out-of-pocket costs over time,” wrote the authors of the study.

SOURCE:

The study was led by Eric T. Roberts, PhD, University of California, San Francisco. It was published online on July 30, 2024, in Arthritis & Rheumatology.

LIMITATIONS:

First, while the biosimilar introductions are likely catalysts for many changes in the market, some changes in slopes may also be attributable to the natural growth of the market over time. Second, this study may neither be generalizable to academic medical centers, which are underrepresented in RISE, nor be generalizable to infliximab prescriptions from other specialties. Third, uptake among privately insured patients changed shortly after November-December 2020, raising the possibility that the delay reflected negotiations between insurance companies and relevant entities regarding formulary coverage.

DISCLOSURES:

This study was funded by grants from the Agency for Healthcare Research and Quality and the National Institute of Arthritis and Musculoskeletal and Skin Diseases. One author disclosed receiving consulting fees from Pfizer, AstraZeneca, and Bristol-Myers Squibb and grant funding from AstraZeneca, the Bristol-Myers Squibb Foundation, and Aurinia.

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

A surprising therapy is showing promise for chronic pain, vision loss, and muscle recovery, among other conditions.

It’s not a pill, an injection, or surgery.

It’s light.

Yes, light. The thing that appears when you open the curtains, flip a switch, or strike a match.

Light illuminates our world and helps us see. Early human trials suggest it may help us heal in new ways as well.

“Phototherapy is still in its infancy,” said Mohab Ibrahim, MD, PhD, a professor of anesthesiology at the University of Arizona, Tucson, who studies the effects of light on chronic pain. “There are so many questions, a lot of things we do not understand yet. But that’s where it gets interesting. What we can conclude is that different colors of light can influence different biological functions.”

This growing field goes by several names. Light therapy. Phototherapy. Photobiomodulation.

It leverages known effects of light on human health — such as skin exposure to ultraviolet light producing vitamin D or blue light’s power to regulate human body clocks — to take light as medicine in surprising new directions.
 

New Science, Old Idea

The science is young, but the concept of using light to restore health is thousands of years old.

Hippocrates prescribed sunbathing to patients at his medical center on the Greek island of Kos in 400 BC. Florence Nightingale promoted sunshine, along with fresh air, as prerequisites for recovery in hospitals during the Civil War. A Danish doctor, Niels Finsen, won the Nobel Prize in 1903 for developing ultraviolet lamps to treat a tuberculosis-related skin condition. And worried parents of the 1930s sat their babies in front of mercury arc lamps, bought at the drugstore, to discourage rickets.

Today, light therapy is widely used in medicine for newborn jaundice, psoriasis, and seasonal affective disorder and in light-activated treatments for cancers of the esophagus and lungs, as well as for actinic keratosis, a skin condition that can lead to cancer.

But researchers are finding that light may be capable of far more, particularly in conditions with few treatment options or where available drugs have unwanted side effects.
 

How Red Light Could Restore Vision

When 100 midlife and older adults, aged 53-91, with the dry form of age-related macular degeneration (AMD) were treated with an experimental red-light therapy or a sham therapy, the light treatment group showed signs of improved vision, as measured on a standard eye chart.

Volunteers received the therapy three times a week for 3-5 weeks, every 4 months for 2 years. By the study’s end, 67% of those treated with light could read an additional five letters on the chart, and 20% could read 10 or more. About 7% developed geographic atrophy — the most advanced, vision-threatening stage of dry AMD — compared with 24% in the sham group.

The study, called LIGHTSITE III, was conducted at 10 ophthalmology centers across the United States. The device they used — the Valeda Light Delivery System from medical device company LumiThera — is available in Europe and now being reviewed by the Food and Drug Administration (FDA).

courtesy LumiThera

Exposure to red light at the wavelengths used in the study likely revitalizes failing mitochondria — the power plants inside cells — so they produce more energy, the researchers say.

“This is the first therapy for dry AMD that’s actually shown a benefit in improving vision,” said study coauthor Richard Rosen, MD, chair of ophthalmology at the Icahn School of Medicine at Mount Sinai and chief of Retinal Services at the New York Eye and Ear Infirmary in New York City. “Supplements called AREDS can reduce progression, and in wet AMD we can improve vision loss with injections. But in dry AMD, none of the treatments studied in the past have improved it.”

AMD develops when the eyes can’t break down natural by-products, which glom together as clumps of protein called drusen. Drusen can lodge under the retina, eventually damaging tissue.

“Retinal epithelial cells, a single layer of cells that cares for the photoreceptors in the eyes, are there for life,” Dr. Rosen said. “They have a tremendous capacity to repair themselves, but things [such as aging and smoking] get in the way.”

“I’m proposing,” Dr. Rosen said, “that by boosting energy levels in cells [with red light], we’re improving normal repair mechanisms.”

Lab studies support this idea.

In a 2017 mouse study from the University College London Institute of Ophthalmology in England, retinal function improved by 25% in old mice exposed to red light. And a 2019 study from the Ophthalmological Research Foundation, Oviedo, Spain, found that exposure to blue light harmed the mitochondria in retina cells, while red light somewhat counteracted the losses.

If cleared by the FDA — which the company anticipated could happen in 2024 — LumiThera’s light delivery device will likely be most useful in the beginning stages of dry AMD, Dr. Rosen said. “I think treatment of early dry AMD will be huge.”

Eventually, light therapy may also be valuable in treating or managing glaucoma and diabetic retinopathy.

For now, Dr. Rosen recommended that clinicians and consumers with AMD skip over-the-counter (OTC) red-light therapy devices currently on the market.

“We don’t know what kind of light the devices produce,” he said. “The wavelengths can vary. The eyes are delicate. Experimenting on your own may be hazardous to your vision.”
 

Green Light for Pain Relief

On his way to the pharmacy to pick up pain relievers for a headache, Dr. Ibrahim passed Gene C. Reid Park in Tucson. Recalling how his brother eased headaches by sitting in his backyard, Dr. Ibrahim pulled over.

“Reid Park is probably one of the greenest areas of Tucson,” said Dr. Ibrahim, who also serves as medical director of the Comprehensive Center for Pain & Addiction at Banner-University Medical Center Phoenix in Arizona. “I spent a half hour or 40 minutes there, and my headache felt better.”

Being outdoors in a green space may be soothing for lots of reasons, like the quiet or the fresh air. But there’s also sunlight reflected off and shining through greenery. The experience inspired Dr. Ibrahim to take a closer look at the effects of green light on chronic pain.

In his 2021 study of 29 people with migraines, participants reported that, after daily exposure to green light for 10 weeks, the number of days per month when they had headaches fell from 7.9 to 2.4 for those who had episodic migraines and from 22.3 to 9.4 for those with chronic migraines. In another 2021 study, 21 people with fibromyalgia who had green light therapy for 10 weeks said their average, self-reported pain intensity fell from 8.4 to 4.9 on a 10-point scale used at the University of Arizona’s pain clinic.

Volunteers in both studies got their light therapy at home, switching on green LED lights while they listened to music, read a book, relaxed, or exercised for 1 or 2 hours daily. The lights were within their field of vision, but they did not look directly at them.

Dr. Ibrahim now has funding from the Department of Defense and Department of Veterans Affairs to find out why green light alters pain perception.

“What we know is that the visual system is connected to certain areas of the brain that also modulate pain,” he said. “We are trying to understand the connection.”

Padma Gulur, MD, a professor of anesthesiology and population health and director of Pain Management Strategy and Opioid Surveillance at Duke University, Durham, North Carolina, saw similar results in a 2023 study of 45 people with fibromyalgia. But instead of using a light source, volunteers wore glasses with clear, green, or blue lenses for 4 hours a day.

After 2 weeks, 33% in the green lens group reduced their use of opioids by 10% or more, compared with 11% in the blue lens group and 8% who wore clear lenses. Previous studies have found green light affects levels of the feel-good brain chemical serotonin and stimulates the body’s own opioid system, the authors noted.

“Green light helps your body control and reduce pain,” Dr. Gulur said. It “seems to help with pain relief by affecting the body’s natural pain management system. This effect appears to play a crucial role in antinociception — reducing the sensation of pain; antiallodynia — preventing normal, nonpainful stimuli from causing pain; and antihyperalgesia — reducing heightened sensitivity to pain.”

Light therapy could help pain patients reduce their dose of opioids or even forgo the drugs altogether, Dr. Gulur said. “It is our hope this will become a useful adjuvant therapy to manage pain.”

In the University of Arizona studies, some patients on green-light therapy stopped their medications completely. Even if they didn’t, other benefits appeared. “They had improved quality of life, decreased depression and anxiety, and improved sleep,” Dr. Ibrahim said.

But not just any green light or green-tinted glasses will work, both researchers said. “We have found there are specific frequencies of green light that give this benefit,” Dr. Gulur said. “OTC products may not be helpful for that reason.”

While Dr. Ibrahim said it could be possible for healthcare practitioners and consumers to consult his studies and put together an inexpensive green-light device at home while carefully following the protocol participants used in the studies , it would first be a good idea for patients to talk with their family doctor or a pain specialist.

“A headache is not always just a headache,” Dr. Ibrahim said. “It could be some other abnormality that needs diagnosis and treatment. If you have long-lasting pain or pain that’s getting worse, it’s always better to discuss it with your physician.”
 

Helping Muscles Recover With Red Light

Intense exercise — whether it’s a sprint at the end of a morning run, an extra set of biceps curls, or a weekend of all-day DIY home improvement projects — can temporarily damage muscle, causing soreness, inflammation, and even swelling. Phototherapy with red and near-infrared light is widely used by sports trainers, physical therapists, and athletes to aid in recovery. It may even work better than a trendy plunge in an ice bath, according to a 2019 Texas State University review.

But how does it work? Jamie Ghigiarelli, PhD, professor of Allied Health & Kinesiology at Hofstra University in Hempstead, New York, looked closely at signs of inflammation and muscle damage in 12 athletes to find out.

Study participants overtaxed their muscles with rounds of chin-ups, high-speed sprints, and repeated bench presses. Afterward, they relaxed in a full-body red-light therapy bed or in a similar bed without lights.

The results, published in 2020, showed that blood levels of creatine kinase — an enzyme that’s elevated by muscle damage — were 18% lower 1-3 days after exercising for the light-bed group than for the control group.

“Photobiomodulation seems to help with muscle recovery,” Dr. Ghigiarelli said.

Red light at wavelengths from 650 to 820 nm can enter muscle cells, where it is absorbed by mitochondria and boosts their energy production, he said. At the time of his research, some exercise science researchers and athletes thought using light therapy before an event might also increase athletic performance, but according to Dr. Ghigiarelli, that use has not panned out.

Handheld red light and near-infrared light devices for muscle recovery are widely available, but it’s important to do your homework before buying one.

“You want to choose a device with the right energy production — the right wavelength of light, the right power — to be safe and effective,” he said.

For details, he recommends consulting a 2019 paper in The Brazilian Journal of Physical Therapy called “Clinical and scientific recommendations for the use of photobiomodulation therapy in exercise performance enhancement and post-exercise recovery: Current evidence and future directions.”

The paper, from the Laboratory of Phototherapy and Innovative Technologies in Health at the Universidade Nove de Julho in Sao Paulo, Brazil, recommends that for small muscle groups like the biceps or triceps, use red-light lasers or LED devices with a wavelength of 640 nm for red light or 950 nm for infrared light, at a power of 50-200 mW per diode for single-probe device types, at a dose of 20-60 J, given 5-10 minutes after exercise.

A version of this article appeared on Medscape.com.

A surprising therapy is showing promise for chronic pain, vision loss, and muscle recovery, among other conditions.

It’s not a pill, an injection, or surgery.

It’s light.

Yes, light. The thing that appears when you open the curtains, flip a switch, or strike a match.

Light illuminates our world and helps us see. Early human trials suggest it may help us heal in new ways as well.

“Phototherapy is still in its infancy,” said Mohab Ibrahim, MD, PhD, a professor of anesthesiology at the University of Arizona, Tucson, who studies the effects of light on chronic pain. “There are so many questions, a lot of things we do not understand yet. But that’s where it gets interesting. What we can conclude is that different colors of light can influence different biological functions.”

This growing field goes by several names. Light therapy. Phototherapy. Photobiomodulation.

It leverages known effects of light on human health — such as skin exposure to ultraviolet light producing vitamin D or blue light’s power to regulate human body clocks — to take light as medicine in surprising new directions.
 

New Science, Old Idea

The science is young, but the concept of using light to restore health is thousands of years old.

Hippocrates prescribed sunbathing to patients at his medical center on the Greek island of Kos in 400 BC. Florence Nightingale promoted sunshine, along with fresh air, as prerequisites for recovery in hospitals during the Civil War. A Danish doctor, Niels Finsen, won the Nobel Prize in 1903 for developing ultraviolet lamps to treat a tuberculosis-related skin condition. And worried parents of the 1930s sat their babies in front of mercury arc lamps, bought at the drugstore, to discourage rickets.

Today, light therapy is widely used in medicine for newborn jaundice, psoriasis, and seasonal affective disorder and in light-activated treatments for cancers of the esophagus and lungs, as well as for actinic keratosis, a skin condition that can lead to cancer.

But researchers are finding that light may be capable of far more, particularly in conditions with few treatment options or where available drugs have unwanted side effects.
 

How Red Light Could Restore Vision

When 100 midlife and older adults, aged 53-91, with the dry form of age-related macular degeneration (AMD) were treated with an experimental red-light therapy or a sham therapy, the light treatment group showed signs of improved vision, as measured on a standard eye chart.

Volunteers received the therapy three times a week for 3-5 weeks, every 4 months for 2 years. By the study’s end, 67% of those treated with light could read an additional five letters on the chart, and 20% could read 10 or more. About 7% developed geographic atrophy — the most advanced, vision-threatening stage of dry AMD — compared with 24% in the sham group.

The study, called LIGHTSITE III, was conducted at 10 ophthalmology centers across the United States. The device they used — the Valeda Light Delivery System from medical device company LumiThera — is available in Europe and now being reviewed by the Food and Drug Administration (FDA).

courtesy LumiThera

Exposure to red light at the wavelengths used in the study likely revitalizes failing mitochondria — the power plants inside cells — so they produce more energy, the researchers say.

“This is the first therapy for dry AMD that’s actually shown a benefit in improving vision,” said study coauthor Richard Rosen, MD, chair of ophthalmology at the Icahn School of Medicine at Mount Sinai and chief of Retinal Services at the New York Eye and Ear Infirmary in New York City. “Supplements called AREDS can reduce progression, and in wet AMD we can improve vision loss with injections. But in dry AMD, none of the treatments studied in the past have improved it.”

AMD develops when the eyes can’t break down natural by-products, which glom together as clumps of protein called drusen. Drusen can lodge under the retina, eventually damaging tissue.

“Retinal epithelial cells, a single layer of cells that cares for the photoreceptors in the eyes, are there for life,” Dr. Rosen said. “They have a tremendous capacity to repair themselves, but things [such as aging and smoking] get in the way.”

“I’m proposing,” Dr. Rosen said, “that by boosting energy levels in cells [with red light], we’re improving normal repair mechanisms.”

Lab studies support this idea.

In a 2017 mouse study from the University College London Institute of Ophthalmology in England, retinal function improved by 25% in old mice exposed to red light. And a 2019 study from the Ophthalmological Research Foundation, Oviedo, Spain, found that exposure to blue light harmed the mitochondria in retina cells, while red light somewhat counteracted the losses.

If cleared by the FDA — which the company anticipated could happen in 2024 — LumiThera’s light delivery device will likely be most useful in the beginning stages of dry AMD, Dr. Rosen said. “I think treatment of early dry AMD will be huge.”

Eventually, light therapy may also be valuable in treating or managing glaucoma and diabetic retinopathy.

For now, Dr. Rosen recommended that clinicians and consumers with AMD skip over-the-counter (OTC) red-light therapy devices currently on the market.

“We don’t know what kind of light the devices produce,” he said. “The wavelengths can vary. The eyes are delicate. Experimenting on your own may be hazardous to your vision.”
 

Green Light for Pain Relief

On his way to the pharmacy to pick up pain relievers for a headache, Dr. Ibrahim passed Gene C. Reid Park in Tucson. Recalling how his brother eased headaches by sitting in his backyard, Dr. Ibrahim pulled over.

“Reid Park is probably one of the greenest areas of Tucson,” said Dr. Ibrahim, who also serves as medical director of the Comprehensive Center for Pain & Addiction at Banner-University Medical Center Phoenix in Arizona. “I spent a half hour or 40 minutes there, and my headache felt better.”

Being outdoors in a green space may be soothing for lots of reasons, like the quiet or the fresh air. But there’s also sunlight reflected off and shining through greenery. The experience inspired Dr. Ibrahim to take a closer look at the effects of green light on chronic pain.

In his 2021 study of 29 people with migraines, participants reported that, after daily exposure to green light for 10 weeks, the number of days per month when they had headaches fell from 7.9 to 2.4 for those who had episodic migraines and from 22.3 to 9.4 for those with chronic migraines. In another 2021 study, 21 people with fibromyalgia who had green light therapy for 10 weeks said their average, self-reported pain intensity fell from 8.4 to 4.9 on a 10-point scale used at the University of Arizona’s pain clinic.

Volunteers in both studies got their light therapy at home, switching on green LED lights while they listened to music, read a book, relaxed, or exercised for 1 or 2 hours daily. The lights were within their field of vision, but they did not look directly at them.

Dr. Ibrahim now has funding from the Department of Defense and Department of Veterans Affairs to find out why green light alters pain perception.

“What we know is that the visual system is connected to certain areas of the brain that also modulate pain,” he said. “We are trying to understand the connection.”

Padma Gulur, MD, a professor of anesthesiology and population health and director of Pain Management Strategy and Opioid Surveillance at Duke University, Durham, North Carolina, saw similar results in a 2023 study of 45 people with fibromyalgia. But instead of using a light source, volunteers wore glasses with clear, green, or blue lenses for 4 hours a day.

After 2 weeks, 33% in the green lens group reduced their use of opioids by 10% or more, compared with 11% in the blue lens group and 8% who wore clear lenses. Previous studies have found green light affects levels of the feel-good brain chemical serotonin and stimulates the body’s own opioid system, the authors noted.

“Green light helps your body control and reduce pain,” Dr. Gulur said. It “seems to help with pain relief by affecting the body’s natural pain management system. This effect appears to play a crucial role in antinociception — reducing the sensation of pain; antiallodynia — preventing normal, nonpainful stimuli from causing pain; and antihyperalgesia — reducing heightened sensitivity to pain.”

Light therapy could help pain patients reduce their dose of opioids or even forgo the drugs altogether, Dr. Gulur said. “It is our hope this will become a useful adjuvant therapy to manage pain.”

In the University of Arizona studies, some patients on green-light therapy stopped their medications completely. Even if they didn’t, other benefits appeared. “They had improved quality of life, decreased depression and anxiety, and improved sleep,” Dr. Ibrahim said.

But not just any green light or green-tinted glasses will work, both researchers said. “We have found there are specific frequencies of green light that give this benefit,” Dr. Gulur said. “OTC products may not be helpful for that reason.”

While Dr. Ibrahim said it could be possible for healthcare practitioners and consumers to consult his studies and put together an inexpensive green-light device at home while carefully following the protocol participants used in the studies , it would first be a good idea for patients to talk with their family doctor or a pain specialist.

“A headache is not always just a headache,” Dr. Ibrahim said. “It could be some other abnormality that needs diagnosis and treatment. If you have long-lasting pain or pain that’s getting worse, it’s always better to discuss it with your physician.”
 

Helping Muscles Recover With Red Light

Intense exercise — whether it’s a sprint at the end of a morning run, an extra set of biceps curls, or a weekend of all-day DIY home improvement projects — can temporarily damage muscle, causing soreness, inflammation, and even swelling. Phototherapy with red and near-infrared light is widely used by sports trainers, physical therapists, and athletes to aid in recovery. It may even work better than a trendy plunge in an ice bath, according to a 2019 Texas State University review.

But how does it work? Jamie Ghigiarelli, PhD, professor of Allied Health & Kinesiology at Hofstra University in Hempstead, New York, looked closely at signs of inflammation and muscle damage in 12 athletes to find out.

Study participants overtaxed their muscles with rounds of chin-ups, high-speed sprints, and repeated bench presses. Afterward, they relaxed in a full-body red-light therapy bed or in a similar bed without lights.

The results, published in 2020, showed that blood levels of creatine kinase — an enzyme that’s elevated by muscle damage — were 18% lower 1-3 days after exercising for the light-bed group than for the control group.

“Photobiomodulation seems to help with muscle recovery,” Dr. Ghigiarelli said.

Red light at wavelengths from 650 to 820 nm can enter muscle cells, where it is absorbed by mitochondria and boosts their energy production, he said. At the time of his research, some exercise science researchers and athletes thought using light therapy before an event might also increase athletic performance, but according to Dr. Ghigiarelli, that use has not panned out.

Handheld red light and near-infrared light devices for muscle recovery are widely available, but it’s important to do your homework before buying one.

“You want to choose a device with the right energy production — the right wavelength of light, the right power — to be safe and effective,” he said.

For details, he recommends consulting a 2019 paper in The Brazilian Journal of Physical Therapy called “Clinical and scientific recommendations for the use of photobiomodulation therapy in exercise performance enhancement and post-exercise recovery: Current evidence and future directions.”

The paper, from the Laboratory of Phototherapy and Innovative Technologies in Health at the Universidade Nove de Julho in Sao Paulo, Brazil, recommends that for small muscle groups like the biceps or triceps, use red-light lasers or LED devices with a wavelength of 640 nm for red light or 950 nm for infrared light, at a power of 50-200 mW per diode for single-probe device types, at a dose of 20-60 J, given 5-10 minutes after exercise.

A version of this article appeared on Medscape.com.

A surprising therapy is showing promise for chronic pain, vision loss, and muscle recovery, among other conditions.

It’s not a pill, an injection, or surgery.

It’s light.

Yes, light. The thing that appears when you open the curtains, flip a switch, or strike a match.

Light illuminates our world and helps us see. Early human trials suggest it may help us heal in new ways as well.

“Phototherapy is still in its infancy,” said Mohab Ibrahim, MD, PhD, a professor of anesthesiology at the University of Arizona, Tucson, who studies the effects of light on chronic pain. “There are so many questions, a lot of things we do not understand yet. But that’s where it gets interesting. What we can conclude is that different colors of light can influence different biological functions.”

This growing field goes by several names. Light therapy. Phototherapy. Photobiomodulation.

It leverages known effects of light on human health — such as skin exposure to ultraviolet light producing vitamin D or blue light’s power to regulate human body clocks — to take light as medicine in surprising new directions.
 

New Science, Old Idea

The science is young, but the concept of using light to restore health is thousands of years old.

Hippocrates prescribed sunbathing to patients at his medical center on the Greek island of Kos in 400 BC. Florence Nightingale promoted sunshine, along with fresh air, as prerequisites for recovery in hospitals during the Civil War. A Danish doctor, Niels Finsen, won the Nobel Prize in 1903 for developing ultraviolet lamps to treat a tuberculosis-related skin condition. And worried parents of the 1930s sat their babies in front of mercury arc lamps, bought at the drugstore, to discourage rickets.

Today, light therapy is widely used in medicine for newborn jaundice, psoriasis, and seasonal affective disorder and in light-activated treatments for cancers of the esophagus and lungs, as well as for actinic keratosis, a skin condition that can lead to cancer.

But researchers are finding that light may be capable of far more, particularly in conditions with few treatment options or where available drugs have unwanted side effects.
 

How Red Light Could Restore Vision

When 100 midlife and older adults, aged 53-91, with the dry form of age-related macular degeneration (AMD) were treated with an experimental red-light therapy or a sham therapy, the light treatment group showed signs of improved vision, as measured on a standard eye chart.

Volunteers received the therapy three times a week for 3-5 weeks, every 4 months for 2 years. By the study’s end, 67% of those treated with light could read an additional five letters on the chart, and 20% could read 10 or more. About 7% developed geographic atrophy — the most advanced, vision-threatening stage of dry AMD — compared with 24% in the sham group.

The study, called LIGHTSITE III, was conducted at 10 ophthalmology centers across the United States. The device they used — the Valeda Light Delivery System from medical device company LumiThera — is available in Europe and now being reviewed by the Food and Drug Administration (FDA).

courtesy LumiThera

Exposure to red light at the wavelengths used in the study likely revitalizes failing mitochondria — the power plants inside cells — so they produce more energy, the researchers say.

“This is the first therapy for dry AMD that’s actually shown a benefit in improving vision,” said study coauthor Richard Rosen, MD, chair of ophthalmology at the Icahn School of Medicine at Mount Sinai and chief of Retinal Services at the New York Eye and Ear Infirmary in New York City. “Supplements called AREDS can reduce progression, and in wet AMD we can improve vision loss with injections. But in dry AMD, none of the treatments studied in the past have improved it.”

AMD develops when the eyes can’t break down natural by-products, which glom together as clumps of protein called drusen. Drusen can lodge under the retina, eventually damaging tissue.

“Retinal epithelial cells, a single layer of cells that cares for the photoreceptors in the eyes, are there for life,” Dr. Rosen said. “They have a tremendous capacity to repair themselves, but things [such as aging and smoking] get in the way.”

“I’m proposing,” Dr. Rosen said, “that by boosting energy levels in cells [with red light], we’re improving normal repair mechanisms.”

Lab studies support this idea.

In a 2017 mouse study from the University College London Institute of Ophthalmology in England, retinal function improved by 25% in old mice exposed to red light. And a 2019 study from the Ophthalmological Research Foundation, Oviedo, Spain, found that exposure to blue light harmed the mitochondria in retina cells, while red light somewhat counteracted the losses.

If cleared by the FDA — which the company anticipated could happen in 2024 — LumiThera’s light delivery device will likely be most useful in the beginning stages of dry AMD, Dr. Rosen said. “I think treatment of early dry AMD will be huge.”

Eventually, light therapy may also be valuable in treating or managing glaucoma and diabetic retinopathy.

For now, Dr. Rosen recommended that clinicians and consumers with AMD skip over-the-counter (OTC) red-light therapy devices currently on the market.

“We don’t know what kind of light the devices produce,” he said. “The wavelengths can vary. The eyes are delicate. Experimenting on your own may be hazardous to your vision.”
 

Green Light for Pain Relief

On his way to the pharmacy to pick up pain relievers for a headache, Dr. Ibrahim passed Gene C. Reid Park in Tucson. Recalling how his brother eased headaches by sitting in his backyard, Dr. Ibrahim pulled over.

“Reid Park is probably one of the greenest areas of Tucson,” said Dr. Ibrahim, who also serves as medical director of the Comprehensive Center for Pain & Addiction at Banner-University Medical Center Phoenix in Arizona. “I spent a half hour or 40 minutes there, and my headache felt better.”

Being outdoors in a green space may be soothing for lots of reasons, like the quiet or the fresh air. But there’s also sunlight reflected off and shining through greenery. The experience inspired Dr. Ibrahim to take a closer look at the effects of green light on chronic pain.

In his 2021 study of 29 people with migraines, participants reported that, after daily exposure to green light for 10 weeks, the number of days per month when they had headaches fell from 7.9 to 2.4 for those who had episodic migraines and from 22.3 to 9.4 for those with chronic migraines. In another 2021 study, 21 people with fibromyalgia who had green light therapy for 10 weeks said their average, self-reported pain intensity fell from 8.4 to 4.9 on a 10-point scale used at the University of Arizona’s pain clinic.

Volunteers in both studies got their light therapy at home, switching on green LED lights while they listened to music, read a book, relaxed, or exercised for 1 or 2 hours daily. The lights were within their field of vision, but they did not look directly at them.

Dr. Ibrahim now has funding from the Department of Defense and Department of Veterans Affairs to find out why green light alters pain perception.

“What we know is that the visual system is connected to certain areas of the brain that also modulate pain,” he said. “We are trying to understand the connection.”

Padma Gulur, MD, a professor of anesthesiology and population health and director of Pain Management Strategy and Opioid Surveillance at Duke University, Durham, North Carolina, saw similar results in a 2023 study of 45 people with fibromyalgia. But instead of using a light source, volunteers wore glasses with clear, green, or blue lenses for 4 hours a day.

After 2 weeks, 33% in the green lens group reduced their use of opioids by 10% or more, compared with 11% in the blue lens group and 8% who wore clear lenses. Previous studies have found green light affects levels of the feel-good brain chemical serotonin and stimulates the body’s own opioid system, the authors noted.

“Green light helps your body control and reduce pain,” Dr. Gulur said. It “seems to help with pain relief by affecting the body’s natural pain management system. This effect appears to play a crucial role in antinociception — reducing the sensation of pain; antiallodynia — preventing normal, nonpainful stimuli from causing pain; and antihyperalgesia — reducing heightened sensitivity to pain.”

Light therapy could help pain patients reduce their dose of opioids or even forgo the drugs altogether, Dr. Gulur said. “It is our hope this will become a useful adjuvant therapy to manage pain.”

In the University of Arizona studies, some patients on green-light therapy stopped their medications completely. Even if they didn’t, other benefits appeared. “They had improved quality of life, decreased depression and anxiety, and improved sleep,” Dr. Ibrahim said.

But not just any green light or green-tinted glasses will work, both researchers said. “We have found there are specific frequencies of green light that give this benefit,” Dr. Gulur said. “OTC products may not be helpful for that reason.”

While Dr. Ibrahim said it could be possible for healthcare practitioners and consumers to consult his studies and put together an inexpensive green-light device at home while carefully following the protocol participants used in the studies , it would first be a good idea for patients to talk with their family doctor or a pain specialist.

“A headache is not always just a headache,” Dr. Ibrahim said. “It could be some other abnormality that needs diagnosis and treatment. If you have long-lasting pain or pain that’s getting worse, it’s always better to discuss it with your physician.”
 

Helping Muscles Recover With Red Light

Intense exercise — whether it’s a sprint at the end of a morning run, an extra set of biceps curls, or a weekend of all-day DIY home improvement projects — can temporarily damage muscle, causing soreness, inflammation, and even swelling. Phototherapy with red and near-infrared light is widely used by sports trainers, physical therapists, and athletes to aid in recovery. It may even work better than a trendy plunge in an ice bath, according to a 2019 Texas State University review.

But how does it work? Jamie Ghigiarelli, PhD, professor of Allied Health & Kinesiology at Hofstra University in Hempstead, New York, looked closely at signs of inflammation and muscle damage in 12 athletes to find out.

Study participants overtaxed their muscles with rounds of chin-ups, high-speed sprints, and repeated bench presses. Afterward, they relaxed in a full-body red-light therapy bed or in a similar bed without lights.

The results, published in 2020, showed that blood levels of creatine kinase — an enzyme that’s elevated by muscle damage — were 18% lower 1-3 days after exercising for the light-bed group than for the control group.

“Photobiomodulation seems to help with muscle recovery,” Dr. Ghigiarelli said.

Red light at wavelengths from 650 to 820 nm can enter muscle cells, where it is absorbed by mitochondria and boosts their energy production, he said. At the time of his research, some exercise science researchers and athletes thought using light therapy before an event might also increase athletic performance, but according to Dr. Ghigiarelli, that use has not panned out.

Handheld red light and near-infrared light devices for muscle recovery are widely available, but it’s important to do your homework before buying one.

“You want to choose a device with the right energy production — the right wavelength of light, the right power — to be safe and effective,” he said.

For details, he recommends consulting a 2019 paper in The Brazilian Journal of Physical Therapy called “Clinical and scientific recommendations for the use of photobiomodulation therapy in exercise performance enhancement and post-exercise recovery: Current evidence and future directions.”

The paper, from the Laboratory of Phototherapy and Innovative Technologies in Health at the Universidade Nove de Julho in Sao Paulo, Brazil, recommends that for small muscle groups like the biceps or triceps, use red-light lasers or LED devices with a wavelength of 640 nm for red light or 950 nm for infrared light, at a power of 50-200 mW per diode for single-probe device types, at a dose of 20-60 J, given 5-10 minutes after exercise.

A version of this article appeared on Medscape.com.

WASHINGTON — Immunoglobulin E (IgE) and eosinophils appeared to be reliable biomarkers of type 2 inflammation in chronic pruritus of unknown origin (CPUO) and predictors of a positive response to immunomodulatory therapies, Shawn G. Kwatra, MD, said at the ElderDerm conference on dermatology in older patients hosted by the GW School of Medicine & Health Sciences.

“We found a few years ago that eosinophils seem to differentiate this group, and now we’re finding that IgE and CBC [complete blood count] differential can help you get a little better sense of who has an immune-driven itch vs something more neuropathic,” said Dr. Kwatra, professor and chair of dermatology at the University of Maryland, Baltimore, who founded and directed the Johns Hopkins Itch Center before coming to the University of Maryland in 2023. Not all patients with immune-driven itch will have these biomarkers, “but it’s a helpful tool,” he said.

Dr. Kwatra

CPUO is the term that is increasingly being used, he said, to describe intense, chronic pruritus without primary skin lesions or rashes and without any known systemic cause. It becomes more common as people get older and is sometimes debilitating. The initial evaluation should be kept “simple and straightforward,” he advised, with heightened concern for underlying malignancy in those who present with an itch of less than 12 months’ duration.
 

Biologics, JAK Inhibitors: Case Reports, Ongoing Research 

Research conducted by Dr. Kwatra and Jaya Manjunath, a fourth-year medical student at The George Washington University, Washington, documented higher levels of Th2-associated cytokines and inflammatory markers in patients with CPUO who had elevated IgE or eosinophil levels, or both than in patients with itch who had low IgE and eosinophil levels. The patients with higher levels also had a greater response to off-label treatment with immunomodulatory therapy.

“Multiple Th2-related inflammatory markers, like IL [interleukin]-5 and eotaxin-3, were reduced after dupilumab” in patients who responded to the therapy, said Ms. Manjunath, who co-presented the meeting session on chronic itch with Dr. Kwatra. Other changes in the plasma cytokine profile included a reduction in the serum level of thymus and activation-regulated chemokine, which is a biomarker for atopic dermatitis. The research is under review for publication.

Meanwhile, a phase 3 trial (LIBERTY-CPUO-CHIC) of dupilumab for CPUO is currently underway, Dr. Kwatra noted. Investigators are randomizing patients with severe pruritus (Worst Itch Numeric Rating Scale [WI-NRS] ≥ 7) to dupilumab or placebo for 12 or 24 weeks.

In one of several cases shared by Dr. Kwatra and Ms. Manjunath, a 71-year-old Black woman with a 6-month history of generalized itch (WI-NRS = 10) and a history of type 2 diabetes, hypertension, and chronic kidney disease was found to have elevated eosinophil levels and a negative malignancy workup. Previous therapies included antihistamines and topical steroids. She was started on a 600-mg loading dose of subcutaneous dupilumab followed by 300 mg every 14 days. At the 2-month follow-up, her WI-NRS score was 0.

Because “dupilumab is off label right now for this form of itch, oftentimes our first line is methotrexate,” Dr. Kwatra said. Patients “can have a good response with this therapeutic.”

He also described the case of a 72-year-old Black woman with total body itch for 2 years (WI-NRS = 10) and a history of seasonal allergies, thyroid disease, and hypertension. Previous therapies included prednisone, antihistamines, topical steroids, and gabapentin. The patient was found to have high IgE (447 kU/L) and eosinophil levels (4.9%), was started on methotrexate, and had an itch score of 0 at the 8-month follow-up.

JAK inhibitors may also have a role in the management of CPUO. A phase 2 nonrandomized controlled trial of abrocitinib for adults with prurigo nodularis (PN) or CPUO, recently published in JAMA Dermatology, showed itch scores decreased by 53.7% in the CPUO group (and 78.3% in the PN group) after 12 weeks of treatment with oral abrocitinib 200 mg daily. Patients had significant improvements in quality of life and no serious adverse events, said Dr. Kwatra, the lead author of the paper.

One of these patients was a 73-year-old White man who had experienced total body itch for 1.5 years (predominantly affecting his upper extremities; WI-NRS = 10) and a history of ascending aortic aneurysm, hypertension, and hyperlipidemia. Previous failed therapies included dupilumab (> 6 months), topical steroids, tacrolimus, and antihistamines. Labs showed elevated IgE (456 kU/L) and eosinophil levels (11.7%). After 12 weeks of treatment with abrocitinib, the WI-NRS decreased to 2.
 

PD-1 Inhibitors As a Trigger

Chronic pruritus caused by the anticancer PD-1 inhibitors is becoming more common as the utilization of these immune checkpoint inhibitors increases, Dr. Kwatra noted. “You don’t see much in the skin, but [these patients have] very high IgE and eosinophils,” he said. “We’ve been seeing more reports recently of utilizing agents that target type 2 inflammation off label for PD-1 inhibitor–related skin manifestations.”

One such patient with PD-1 inhibitor–induced pruritus was a 65-year-old White man with metastatic melanoma who reported a 6-month history of itching that began 3 weeks after the start of treatment with the PD-1 inhibitor pembrolizumab. His WI-NRS score was 10 despite treatment with topical steroids and antihistamines. He had a history of psoriasis. Labs showed elevated IgE (1350 kU/L) and eosinophil levels (4.5%). At a 4-month follow-up after treatment with off-label dupilumab (a 600-mg subcutaneous loading dose followed by 300 mg every 14 days), his WI-NRS score was 0.

In a paper recently published in JAAD International, Dr. Kwatra, Ms. Manjunath, and coinvestigators reported on a series of 15 patients who developed chronic pruritus following an immune stimulus exposure, including immunotherapy and vaccination (2024 Apr 7:16:97-102. doi: 10.1016/j.jdin.2024.03.022). Most immunotherapy-treated patients experienced pruritus during treatment or after 21-60 days of receiving treatment, and the patients with vaccine-stimulated pruritus (after Tdap and messenger RNA COVID-19 vaccination) developed pruritus within a week of vaccination.

In addition to the elevated levels of IgE and eosinophils, plasma cytokine analysis showed elevated levels of IL-5, thymic stromal lymphopoietin, and other Th2-related cytokines and inflammatory markers in patients with immune-stimulated pruritus compared with healthy controls, Ms. Manjunath said at the meeting.

When a Malignancy Workup Becomes Important

The initial part of any diagnostic workup for CPUO should include CBC with differential, liver function tests, renal function tests, and thyroid function testing, said Kwatra, referring to a diagnostic algorithm he developed, which was published as part of a CME review in the Journal of the American Academy of Dermatology in 2022.

Then, as indicated by risk factors in the history and physical, one could order other tests such as HIV serology, hepatitis B/C serologies, bullous pemphigoid testing, chest x-rays, evaluation for gammopathies, stool examination for ova and parasites, or heavy metal testing. “Do you do everything at once? We like to keep it straightforward,” Dr. Kwatra said. “Depending on the patient’s risk factors, you could order more or less.”

A malignancy workup should be strongly considered in patients whose itch duration is less than 12 months — and especially if the duration is less than 3 months — with an emphasis on cancers more frequently associated with itch: Hematologic and hepatobiliary cancers. This is “when concern should be heightened ... when there should be a lower threshold for workup,” he said.

The 12-month recommendation stems from a Danish cohort study published in 2014 that demonstrated a twofold increased incidence of cancer among patients with pruritus in the first 3 months after the diagnosis of pruritus. The 1-year absolute cancer risk was 1.63%.

Other risk factors for underlying malignancy or malignancy development in patients with CPUO include age older than 60 years, male sex, liver disease, and current or prior smoking, according to another study, noted Dr. Kwatra.

Dr. Kwatra disclosed that he is an advisory board member/consultant for Pfizer, Regeneron, Sanofi, and other companies and an investigator for Galderma, Incyte, Pfizer, and Sanofi. Manjunath served as the codirector of the ElderDerm conference.
 

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

WASHINGTON — Immunoglobulin E (IgE) and eosinophils appeared to be reliable biomarkers of type 2 inflammation in chronic pruritus of unknown origin (CPUO) and predictors of a positive response to immunomodulatory therapies, Shawn G. Kwatra, MD, said at the ElderDerm conference on dermatology in older patients hosted by the GW School of Medicine & Health Sciences.

“We found a few years ago that eosinophils seem to differentiate this group, and now we’re finding that IgE and CBC [complete blood count] differential can help you get a little better sense of who has an immune-driven itch vs something more neuropathic,” said Dr. Kwatra, professor and chair of dermatology at the University of Maryland, Baltimore, who founded and directed the Johns Hopkins Itch Center before coming to the University of Maryland in 2023. Not all patients with immune-driven itch will have these biomarkers, “but it’s a helpful tool,” he said.

Dr. Kwatra

CPUO is the term that is increasingly being used, he said, to describe intense, chronic pruritus without primary skin lesions or rashes and without any known systemic cause. It becomes more common as people get older and is sometimes debilitating. The initial evaluation should be kept “simple and straightforward,” he advised, with heightened concern for underlying malignancy in those who present with an itch of less than 12 months’ duration.
 

Biologics, JAK Inhibitors: Case Reports, Ongoing Research 

Research conducted by Dr. Kwatra and Jaya Manjunath, a fourth-year medical student at The George Washington University, Washington, documented higher levels of Th2-associated cytokines and inflammatory markers in patients with CPUO who had elevated IgE or eosinophil levels, or both than in patients with itch who had low IgE and eosinophil levels. The patients with higher levels also had a greater response to off-label treatment with immunomodulatory therapy.

“Multiple Th2-related inflammatory markers, like IL [interleukin]-5 and eotaxin-3, were reduced after dupilumab” in patients who responded to the therapy, said Ms. Manjunath, who co-presented the meeting session on chronic itch with Dr. Kwatra. Other changes in the plasma cytokine profile included a reduction in the serum level of thymus and activation-regulated chemokine, which is a biomarker for atopic dermatitis. The research is under review for publication.

Meanwhile, a phase 3 trial (LIBERTY-CPUO-CHIC) of dupilumab for CPUO is currently underway, Dr. Kwatra noted. Investigators are randomizing patients with severe pruritus (Worst Itch Numeric Rating Scale [WI-NRS] ≥ 7) to dupilumab or placebo for 12 or 24 weeks.

In one of several cases shared by Dr. Kwatra and Ms. Manjunath, a 71-year-old Black woman with a 6-month history of generalized itch (WI-NRS = 10) and a history of type 2 diabetes, hypertension, and chronic kidney disease was found to have elevated eosinophil levels and a negative malignancy workup. Previous therapies included antihistamines and topical steroids. She was started on a 600-mg loading dose of subcutaneous dupilumab followed by 300 mg every 14 days. At the 2-month follow-up, her WI-NRS score was 0.

Because “dupilumab is off label right now for this form of itch, oftentimes our first line is methotrexate,” Dr. Kwatra said. Patients “can have a good response with this therapeutic.”

He also described the case of a 72-year-old Black woman with total body itch for 2 years (WI-NRS = 10) and a history of seasonal allergies, thyroid disease, and hypertension. Previous therapies included prednisone, antihistamines, topical steroids, and gabapentin. The patient was found to have high IgE (447 kU/L) and eosinophil levels (4.9%), was started on methotrexate, and had an itch score of 0 at the 8-month follow-up.

JAK inhibitors may also have a role in the management of CPUO. A phase 2 nonrandomized controlled trial of abrocitinib for adults with prurigo nodularis (PN) or CPUO, recently published in JAMA Dermatology, showed itch scores decreased by 53.7% in the CPUO group (and 78.3% in the PN group) after 12 weeks of treatment with oral abrocitinib 200 mg daily. Patients had significant improvements in quality of life and no serious adverse events, said Dr. Kwatra, the lead author of the paper.

One of these patients was a 73-year-old White man who had experienced total body itch for 1.5 years (predominantly affecting his upper extremities; WI-NRS = 10) and a history of ascending aortic aneurysm, hypertension, and hyperlipidemia. Previous failed therapies included dupilumab (> 6 months), topical steroids, tacrolimus, and antihistamines. Labs showed elevated IgE (456 kU/L) and eosinophil levels (11.7%). After 12 weeks of treatment with abrocitinib, the WI-NRS decreased to 2.
 

PD-1 Inhibitors As a Trigger

Chronic pruritus caused by the anticancer PD-1 inhibitors is becoming more common as the utilization of these immune checkpoint inhibitors increases, Dr. Kwatra noted. “You don’t see much in the skin, but [these patients have] very high IgE and eosinophils,” he said. “We’ve been seeing more reports recently of utilizing agents that target type 2 inflammation off label for PD-1 inhibitor–related skin manifestations.”

One such patient with PD-1 inhibitor–induced pruritus was a 65-year-old White man with metastatic melanoma who reported a 6-month history of itching that began 3 weeks after the start of treatment with the PD-1 inhibitor pembrolizumab. His WI-NRS score was 10 despite treatment with topical steroids and antihistamines. He had a history of psoriasis. Labs showed elevated IgE (1350 kU/L) and eosinophil levels (4.5%). At a 4-month follow-up after treatment with off-label dupilumab (a 600-mg subcutaneous loading dose followed by 300 mg every 14 days), his WI-NRS score was 0.

In a paper recently published in JAAD International, Dr. Kwatra, Ms. Manjunath, and coinvestigators reported on a series of 15 patients who developed chronic pruritus following an immune stimulus exposure, including immunotherapy and vaccination (2024 Apr 7:16:97-102. doi: 10.1016/j.jdin.2024.03.022). Most immunotherapy-treated patients experienced pruritus during treatment or after 21-60 days of receiving treatment, and the patients with vaccine-stimulated pruritus (after Tdap and messenger RNA COVID-19 vaccination) developed pruritus within a week of vaccination.

In addition to the elevated levels of IgE and eosinophils, plasma cytokine analysis showed elevated levels of IL-5, thymic stromal lymphopoietin, and other Th2-related cytokines and inflammatory markers in patients with immune-stimulated pruritus compared with healthy controls, Ms. Manjunath said at the meeting.

When a Malignancy Workup Becomes Important

The initial part of any diagnostic workup for CPUO should include CBC with differential, liver function tests, renal function tests, and thyroid function testing, said Kwatra, referring to a diagnostic algorithm he developed, which was published as part of a CME review in the Journal of the American Academy of Dermatology in 2022.

Then, as indicated by risk factors in the history and physical, one could order other tests such as HIV serology, hepatitis B/C serologies, bullous pemphigoid testing, chest x-rays, evaluation for gammopathies, stool examination for ova and parasites, or heavy metal testing. “Do you do everything at once? We like to keep it straightforward,” Dr. Kwatra said. “Depending on the patient’s risk factors, you could order more or less.”

A malignancy workup should be strongly considered in patients whose itch duration is less than 12 months — and especially if the duration is less than 3 months — with an emphasis on cancers more frequently associated with itch: Hematologic and hepatobiliary cancers. This is “when concern should be heightened ... when there should be a lower threshold for workup,” he said.

The 12-month recommendation stems from a Danish cohort study published in 2014 that demonstrated a twofold increased incidence of cancer among patients with pruritus in the first 3 months after the diagnosis of pruritus. The 1-year absolute cancer risk was 1.63%.

Other risk factors for underlying malignancy or malignancy development in patients with CPUO include age older than 60 years, male sex, liver disease, and current or prior smoking, according to another study, noted Dr. Kwatra.

Dr. Kwatra disclosed that he is an advisory board member/consultant for Pfizer, Regeneron, Sanofi, and other companies and an investigator for Galderma, Incyte, Pfizer, and Sanofi. Manjunath served as the codirector of the ElderDerm conference.
 

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

WASHINGTON — Immunoglobulin E (IgE) and eosinophils appeared to be reliable biomarkers of type 2 inflammation in chronic pruritus of unknown origin (CPUO) and predictors of a positive response to immunomodulatory therapies, Shawn G. Kwatra, MD, said at the ElderDerm conference on dermatology in older patients hosted by the GW School of Medicine & Health Sciences.

“We found a few years ago that eosinophils seem to differentiate this group, and now we’re finding that IgE and CBC [complete blood count] differential can help you get a little better sense of who has an immune-driven itch vs something more neuropathic,” said Dr. Kwatra, professor and chair of dermatology at the University of Maryland, Baltimore, who founded and directed the Johns Hopkins Itch Center before coming to the University of Maryland in 2023. Not all patients with immune-driven itch will have these biomarkers, “but it’s a helpful tool,” he said.

Dr. Kwatra

CPUO is the term that is increasingly being used, he said, to describe intense, chronic pruritus without primary skin lesions or rashes and without any known systemic cause. It becomes more common as people get older and is sometimes debilitating. The initial evaluation should be kept “simple and straightforward,” he advised, with heightened concern for underlying malignancy in those who present with an itch of less than 12 months’ duration.
 

Biologics, JAK Inhibitors: Case Reports, Ongoing Research 

Research conducted by Dr. Kwatra and Jaya Manjunath, a fourth-year medical student at The George Washington University, Washington, documented higher levels of Th2-associated cytokines and inflammatory markers in patients with CPUO who had elevated IgE or eosinophil levels, or both than in patients with itch who had low IgE and eosinophil levels. The patients with higher levels also had a greater response to off-label treatment with immunomodulatory therapy.

“Multiple Th2-related inflammatory markers, like IL [interleukin]-5 and eotaxin-3, were reduced after dupilumab” in patients who responded to the therapy, said Ms. Manjunath, who co-presented the meeting session on chronic itch with Dr. Kwatra. Other changes in the plasma cytokine profile included a reduction in the serum level of thymus and activation-regulated chemokine, which is a biomarker for atopic dermatitis. The research is under review for publication.

Meanwhile, a phase 3 trial (LIBERTY-CPUO-CHIC) of dupilumab for CPUO is currently underway, Dr. Kwatra noted. Investigators are randomizing patients with severe pruritus (Worst Itch Numeric Rating Scale [WI-NRS] ≥ 7) to dupilumab or placebo for 12 or 24 weeks.

In one of several cases shared by Dr. Kwatra and Ms. Manjunath, a 71-year-old Black woman with a 6-month history of generalized itch (WI-NRS = 10) and a history of type 2 diabetes, hypertension, and chronic kidney disease was found to have elevated eosinophil levels and a negative malignancy workup. Previous therapies included antihistamines and topical steroids. She was started on a 600-mg loading dose of subcutaneous dupilumab followed by 300 mg every 14 days. At the 2-month follow-up, her WI-NRS score was 0.

Because “dupilumab is off label right now for this form of itch, oftentimes our first line is methotrexate,” Dr. Kwatra said. Patients “can have a good response with this therapeutic.”

He also described the case of a 72-year-old Black woman with total body itch for 2 years (WI-NRS = 10) and a history of seasonal allergies, thyroid disease, and hypertension. Previous therapies included prednisone, antihistamines, topical steroids, and gabapentin. The patient was found to have high IgE (447 kU/L) and eosinophil levels (4.9%), was started on methotrexate, and had an itch score of 0 at the 8-month follow-up.

JAK inhibitors may also have a role in the management of CPUO. A phase 2 nonrandomized controlled trial of abrocitinib for adults with prurigo nodularis (PN) or CPUO, recently published in JAMA Dermatology, showed itch scores decreased by 53.7% in the CPUO group (and 78.3% in the PN group) after 12 weeks of treatment with oral abrocitinib 200 mg daily. Patients had significant improvements in quality of life and no serious adverse events, said Dr. Kwatra, the lead author of the paper.

One of these patients was a 73-year-old White man who had experienced total body itch for 1.5 years (predominantly affecting his upper extremities; WI-NRS = 10) and a history of ascending aortic aneurysm, hypertension, and hyperlipidemia. Previous failed therapies included dupilumab (> 6 months), topical steroids, tacrolimus, and antihistamines. Labs showed elevated IgE (456 kU/L) and eosinophil levels (11.7%). After 12 weeks of treatment with abrocitinib, the WI-NRS decreased to 2.
 

PD-1 Inhibitors As a Trigger

Chronic pruritus caused by the anticancer PD-1 inhibitors is becoming more common as the utilization of these immune checkpoint inhibitors increases, Dr. Kwatra noted. “You don’t see much in the skin, but [these patients have] very high IgE and eosinophils,” he said. “We’ve been seeing more reports recently of utilizing agents that target type 2 inflammation off label for PD-1 inhibitor–related skin manifestations.”

One such patient with PD-1 inhibitor–induced pruritus was a 65-year-old White man with metastatic melanoma who reported a 6-month history of itching that began 3 weeks after the start of treatment with the PD-1 inhibitor pembrolizumab. His WI-NRS score was 10 despite treatment with topical steroids and antihistamines. He had a history of psoriasis. Labs showed elevated IgE (1350 kU/L) and eosinophil levels (4.5%). At a 4-month follow-up after treatment with off-label dupilumab (a 600-mg subcutaneous loading dose followed by 300 mg every 14 days), his WI-NRS score was 0.

In a paper recently published in JAAD International, Dr. Kwatra, Ms. Manjunath, and coinvestigators reported on a series of 15 patients who developed chronic pruritus following an immune stimulus exposure, including immunotherapy and vaccination (2024 Apr 7:16:97-102. doi: 10.1016/j.jdin.2024.03.022). Most immunotherapy-treated patients experienced pruritus during treatment or after 21-60 days of receiving treatment, and the patients with vaccine-stimulated pruritus (after Tdap and messenger RNA COVID-19 vaccination) developed pruritus within a week of vaccination.

In addition to the elevated levels of IgE and eosinophils, plasma cytokine analysis showed elevated levels of IL-5, thymic stromal lymphopoietin, and other Th2-related cytokines and inflammatory markers in patients with immune-stimulated pruritus compared with healthy controls, Ms. Manjunath said at the meeting.

When a Malignancy Workup Becomes Important

The initial part of any diagnostic workup for CPUO should include CBC with differential, liver function tests, renal function tests, and thyroid function testing, said Kwatra, referring to a diagnostic algorithm he developed, which was published as part of a CME review in the Journal of the American Academy of Dermatology in 2022.

Then, as indicated by risk factors in the history and physical, one could order other tests such as HIV serology, hepatitis B/C serologies, bullous pemphigoid testing, chest x-rays, evaluation for gammopathies, stool examination for ova and parasites, or heavy metal testing. “Do you do everything at once? We like to keep it straightforward,” Dr. Kwatra said. “Depending on the patient’s risk factors, you could order more or less.”

A malignancy workup should be strongly considered in patients whose itch duration is less than 12 months — and especially if the duration is less than 3 months — with an emphasis on cancers more frequently associated with itch: Hematologic and hepatobiliary cancers. This is “when concern should be heightened ... when there should be a lower threshold for workup,” he said.

The 12-month recommendation stems from a Danish cohort study published in 2014 that demonstrated a twofold increased incidence of cancer among patients with pruritus in the first 3 months after the diagnosis of pruritus. The 1-year absolute cancer risk was 1.63%.

Other risk factors for underlying malignancy or malignancy development in patients with CPUO include age older than 60 years, male sex, liver disease, and current or prior smoking, according to another study, noted Dr. Kwatra.

Dr. Kwatra disclosed that he is an advisory board member/consultant for Pfizer, Regeneron, Sanofi, and other companies and an investigator for Galderma, Incyte, Pfizer, and Sanofi. Manjunath served as the codirector of the ElderDerm conference.
 

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

Among patients who presented to a combined pediatric rheumatology/dermatology clinic (RDC) at the University of California, San Francisco (UCSF), 24% presented without a confirmed diagnosis, and only 41% received a diagnosis during their first clinic visit, results from a retrospective cohort study showed.

“This finding highlights the complexity of patients referred to this clinic,” the study’s first author, Jessica Crockett, a fourth-year medical student at UCSF, told this news organization following the annual meeting of the Society for Pediatric Dermatology, where the study was presented during a poster session. “Integrated care models such as rheumatology/dermatology clinics (RDCs) have been shown to facilitate complete clinical evaluations, establish new or revised diagnoses, and streamline care for adult patients with complex autoimmune skin diseases. However, few pediatric RDCs exist nationwide, and data therefore is quite limited.”

To advance the understanding of pediatric RDC practice patterns, the influence of the care model on patient care, and professional development for trainees and clinicians, Ms. Crockett collaborated with senior author Kelly Cordoro, MD, professor of dermatology and pediatrics at UCSF, and colleagues to evaluate a cohort of 71 patients who received care at the UCSF pediatric RDC. The clinic, which was launched in 2017, includes two dermatologists, two rheumatologists, trainees, a social worker, and a nurse. Team members participate in a preclinic conference to review patient data and images, discuss relevant literature, and develop an approach to each patient.

In a separate part of the study, the researchers distributed a survey to 17 pediatric dermatologists who participate in unique RDCs in North America. Respondents were asked to describe the variability of clinical operations, participants, administrative/clinical support, and educational value for participating physicians and trainees.

Of the 71 patients cared for at the UCSF pediatric RDC, 69% were female, 44% were White, 51% were aged 13-21 years, 42% were aged 3-12 years, and 7% were aged 0-11 years at their first clinic visit. The top four primary RDC diagnoses were linear morphea (33%), lupus (23%), psoriasis (13%), and juvenile dermatomyositis (10%).

Nearly one in four patients (17, or 24%) presented to the RDC without a confirmed diagnosis. A diagnosis was established at the first RDC visit for 7 of these 17 patients (41%). Among 54 patients who presented with an established diagnosis, the first RDC visit confirmed the diagnosis for 52 (96%) and revised it for 2 (4%). “Initial pediatric RDC evaluation significantly influenced patient care by confirming or revising preexisting diagnoses, rendering new diagnoses, and streamlining additional laboratory and imaging recommendations,” the researchers wrote in their poster.

The evaluation also resulted in modified disease management in the form of systemic medication changes or dosage adjustments as well as the initiation of novel therapies. For example, systemic medication changes were made during the first RDC visit in 34 of the 46 patients (74%) who were on systemic medication at presentation.

“Seeing complex patients together in real time allows specialists and other team members (social work, nursing, PT/OT, for example) to share ideas, communicate clearly to families, and efficiently develop recommendations,” Ms. Crockett said of the UCSF pediatric RDC. “Exposure to other specialists while caring for patients enhances medical knowledge, communication skills, and professional competency of faculty and trainees alike.”

In the survey portion of the study, each of the 17 dermatologists reported that the pediatric RDC is valuable for patient care, and 88% believed the RDC was a valuable use of their time. However, only 59% of respondents reported having administrative support, and only 29% had a dedicated clinic coordinator or navigator.

“We were surprised to find that only a quarter of pediatric RDCs incorporate an educational conference,” Dr. Cordoro told this news organization. “We have found that assembling the care team prior to seeing patients to review clinical data, discuss relevant literature, and define the clinical questions for each patient is an integral part of the clinical operation. The trainees are involved in these conference presentations, and it really enhances their understanding of the complex diagnoses we manage in this clinic and the issues faced by affected children and families. The preclinical conference increases efficiency, positively influences patient care, and supports professional development for all participants.”

The study was indirectly supported by a fellowship grant awarded to Ms. Crockett from the Pediatric Dermatology Research Alliance. The researchers reported having no relevant disclosures.

A version of this article appeared on Medscape.com.

Among patients who presented to a combined pediatric rheumatology/dermatology clinic (RDC) at the University of California, San Francisco (UCSF), 24% presented without a confirmed diagnosis, and only 41% received a diagnosis during their first clinic visit, results from a retrospective cohort study showed.

“This finding highlights the complexity of patients referred to this clinic,” the study’s first author, Jessica Crockett, a fourth-year medical student at UCSF, told this news organization following the annual meeting of the Society for Pediatric Dermatology, where the study was presented during a poster session. “Integrated care models such as rheumatology/dermatology clinics (RDCs) have been shown to facilitate complete clinical evaluations, establish new or revised diagnoses, and streamline care for adult patients with complex autoimmune skin diseases. However, few pediatric RDCs exist nationwide, and data therefore is quite limited.”

To advance the understanding of pediatric RDC practice patterns, the influence of the care model on patient care, and professional development for trainees and clinicians, Ms. Crockett collaborated with senior author Kelly Cordoro, MD, professor of dermatology and pediatrics at UCSF, and colleagues to evaluate a cohort of 71 patients who received care at the UCSF pediatric RDC. The clinic, which was launched in 2017, includes two dermatologists, two rheumatologists, trainees, a social worker, and a nurse. Team members participate in a preclinic conference to review patient data and images, discuss relevant literature, and develop an approach to each patient.

In a separate part of the study, the researchers distributed a survey to 17 pediatric dermatologists who participate in unique RDCs in North America. Respondents were asked to describe the variability of clinical operations, participants, administrative/clinical support, and educational value for participating physicians and trainees.

Of the 71 patients cared for at the UCSF pediatric RDC, 69% were female, 44% were White, 51% were aged 13-21 years, 42% were aged 3-12 years, and 7% were aged 0-11 years at their first clinic visit. The top four primary RDC diagnoses were linear morphea (33%), lupus (23%), psoriasis (13%), and juvenile dermatomyositis (10%).

Nearly one in four patients (17, or 24%) presented to the RDC without a confirmed diagnosis. A diagnosis was established at the first RDC visit for 7 of these 17 patients (41%). Among 54 patients who presented with an established diagnosis, the first RDC visit confirmed the diagnosis for 52 (96%) and revised it for 2 (4%). “Initial pediatric RDC evaluation significantly influenced patient care by confirming or revising preexisting diagnoses, rendering new diagnoses, and streamlining additional laboratory and imaging recommendations,” the researchers wrote in their poster.

The evaluation also resulted in modified disease management in the form of systemic medication changes or dosage adjustments as well as the initiation of novel therapies. For example, systemic medication changes were made during the first RDC visit in 34 of the 46 patients (74%) who were on systemic medication at presentation.

“Seeing complex patients together in real time allows specialists and other team members (social work, nursing, PT/OT, for example) to share ideas, communicate clearly to families, and efficiently develop recommendations,” Ms. Crockett said of the UCSF pediatric RDC. “Exposure to other specialists while caring for patients enhances medical knowledge, communication skills, and professional competency of faculty and trainees alike.”

In the survey portion of the study, each of the 17 dermatologists reported that the pediatric RDC is valuable for patient care, and 88% believed the RDC was a valuable use of their time. However, only 59% of respondents reported having administrative support, and only 29% had a dedicated clinic coordinator or navigator.

“We were surprised to find that only a quarter of pediatric RDCs incorporate an educational conference,” Dr. Cordoro told this news organization. “We have found that assembling the care team prior to seeing patients to review clinical data, discuss relevant literature, and define the clinical questions for each patient is an integral part of the clinical operation. The trainees are involved in these conference presentations, and it really enhances their understanding of the complex diagnoses we manage in this clinic and the issues faced by affected children and families. The preclinical conference increases efficiency, positively influences patient care, and supports professional development for all participants.”

The study was indirectly supported by a fellowship grant awarded to Ms. Crockett from the Pediatric Dermatology Research Alliance. The researchers reported having no relevant disclosures.

A version of this article appeared on Medscape.com.

Among patients who presented to a combined pediatric rheumatology/dermatology clinic (RDC) at the University of California, San Francisco (UCSF), 24% presented without a confirmed diagnosis, and only 41% received a diagnosis during their first clinic visit, results from a retrospective cohort study showed.

“This finding highlights the complexity of patients referred to this clinic,” the study’s first author, Jessica Crockett, a fourth-year medical student at UCSF, told this news organization following the annual meeting of the Society for Pediatric Dermatology, where the study was presented during a poster session. “Integrated care models such as rheumatology/dermatology clinics (RDCs) have been shown to facilitate complete clinical evaluations, establish new or revised diagnoses, and streamline care for adult patients with complex autoimmune skin diseases. However, few pediatric RDCs exist nationwide, and data therefore is quite limited.”

To advance the understanding of pediatric RDC practice patterns, the influence of the care model on patient care, and professional development for trainees and clinicians, Ms. Crockett collaborated with senior author Kelly Cordoro, MD, professor of dermatology and pediatrics at UCSF, and colleagues to evaluate a cohort of 71 patients who received care at the UCSF pediatric RDC. The clinic, which was launched in 2017, includes two dermatologists, two rheumatologists, trainees, a social worker, and a nurse. Team members participate in a preclinic conference to review patient data and images, discuss relevant literature, and develop an approach to each patient.

In a separate part of the study, the researchers distributed a survey to 17 pediatric dermatologists who participate in unique RDCs in North America. Respondents were asked to describe the variability of clinical operations, participants, administrative/clinical support, and educational value for participating physicians and trainees.

Of the 71 patients cared for at the UCSF pediatric RDC, 69% were female, 44% were White, 51% were aged 13-21 years, 42% were aged 3-12 years, and 7% were aged 0-11 years at their first clinic visit. The top four primary RDC diagnoses were linear morphea (33%), lupus (23%), psoriasis (13%), and juvenile dermatomyositis (10%).

Nearly one in four patients (17, or 24%) presented to the RDC without a confirmed diagnosis. A diagnosis was established at the first RDC visit for 7 of these 17 patients (41%). Among 54 patients who presented with an established diagnosis, the first RDC visit confirmed the diagnosis for 52 (96%) and revised it for 2 (4%). “Initial pediatric RDC evaluation significantly influenced patient care by confirming or revising preexisting diagnoses, rendering new diagnoses, and streamlining additional laboratory and imaging recommendations,” the researchers wrote in their poster.

The evaluation also resulted in modified disease management in the form of systemic medication changes or dosage adjustments as well as the initiation of novel therapies. For example, systemic medication changes were made during the first RDC visit in 34 of the 46 patients (74%) who were on systemic medication at presentation.

“Seeing complex patients together in real time allows specialists and other team members (social work, nursing, PT/OT, for example) to share ideas, communicate clearly to families, and efficiently develop recommendations,” Ms. Crockett said of the UCSF pediatric RDC. “Exposure to other specialists while caring for patients enhances medical knowledge, communication skills, and professional competency of faculty and trainees alike.”

In the survey portion of the study, each of the 17 dermatologists reported that the pediatric RDC is valuable for patient care, and 88% believed the RDC was a valuable use of their time. However, only 59% of respondents reported having administrative support, and only 29% had a dedicated clinic coordinator or navigator.

“We were surprised to find that only a quarter of pediatric RDCs incorporate an educational conference,” Dr. Cordoro told this news organization. “We have found that assembling the care team prior to seeing patients to review clinical data, discuss relevant literature, and define the clinical questions for each patient is an integral part of the clinical operation. The trainees are involved in these conference presentations, and it really enhances their understanding of the complex diagnoses we manage in this clinic and the issues faced by affected children and families. The preclinical conference increases efficiency, positively influences patient care, and supports professional development for all participants.”

The study was indirectly supported by a fellowship grant awarded to Ms. Crockett from the Pediatric Dermatology Research Alliance. The researchers reported having no relevant disclosures.

A version of this article appeared on Medscape.com.

TOPLINE:

More gastrointestinal and nervous symptom adverse events (AEs) are linked to apremilast than deucravacitinib, which is associated with more cutaneous AEs, according to a retrospective comparison using US Food and Drug Administration (FDA) data.

METHODOLOGY:

• To evaluate the adverse events associated with apremilast, an oral phosphodiesterase-4 (PDE4) inhibitor, and deucravacitinib, an oral tyrosine kinase 2 (TYK2) inhibitor, data were drawn from the FDA’s Adverse Event Reporting System database.
• The Medex_UIMA_1.8.3 system was used to standardize drug names, and MedDRA terminology was used to encode, categorize, and localize signals.
• AE event signals were grouped by skin and subcutaneous tissue disorders, gastrointestinal disorders, infections and infestations, and nervous system disorders.

TAKEAWAY:

• There were 95,734 AE reports for apremilast and 760 AE reports for deucravacitinib, and AEs were found to be significant over time.
• The more common cutaneous AEs were psoriasis recurrence and acne (associated with apremilast) and skin burning and erythema (associated with deucravacitinib).
• The more common gastrointestinal AEs were diarrhea and nausea (apremilast) and mouth ulceration (deucravacitinib).
• Deucravacitinib-related pruritus and rash, as well as apremilast-related tension headache, were more common in women than men; deucravacitinib-related skin burning was more common in men.

IN PRACTICE:

The results “can help the doctors to choose the right treatment options based on the baseline characteristics of different patients,” said Yuanyuan Xu, a graduate student in the Department of Dermatology, Sichuan University, Chengdu, China.

SOURCE:

Mr. Xu presented the study as a poster at the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis 2024 annual meeting.

LIMITATIONS:

The study was retrospective and cannot prove causality, and there were far fewer AE reports related to deucravacitinib, likely because the drug was introduced more recently.

DISCLOSURES:

The study received no funding, and the authors had no relevant financial disclosures.

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

TOPLINE:

More gastrointestinal and nervous symptom adverse events (AEs) are linked to apremilast than deucravacitinib, which is associated with more cutaneous AEs, according to a retrospective comparison using US Food and Drug Administration (FDA) data.

METHODOLOGY:

• To evaluate the adverse events associated with apremilast, an oral phosphodiesterase-4 (PDE4) inhibitor, and deucravacitinib, an oral tyrosine kinase 2 (TYK2) inhibitor, data were drawn from the FDA’s Adverse Event Reporting System database.
• The Medex_UIMA_1.8.3 system was used to standardize drug names, and MedDRA terminology was used to encode, categorize, and localize signals.
• AE event signals were grouped by skin and subcutaneous tissue disorders, gastrointestinal disorders, infections and infestations, and nervous system disorders.

TAKEAWAY:

• There were 95,734 AE reports for apremilast and 760 AE reports for deucravacitinib, and AEs were found to be significant over time.
• The more common cutaneous AEs were psoriasis recurrence and acne (associated with apremilast) and skin burning and erythema (associated with deucravacitinib).
• The more common gastrointestinal AEs were diarrhea and nausea (apremilast) and mouth ulceration (deucravacitinib).
• Deucravacitinib-related pruritus and rash, as well as apremilast-related tension headache, were more common in women than men; deucravacitinib-related skin burning was more common in men.

IN PRACTICE:

The results “can help the doctors to choose the right treatment options based on the baseline characteristics of different patients,” said Yuanyuan Xu, a graduate student in the Department of Dermatology, Sichuan University, Chengdu, China.

SOURCE:

Mr. Xu presented the study as a poster at the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis 2024 annual meeting.

LIMITATIONS:

The study was retrospective and cannot prove causality, and there were far fewer AE reports related to deucravacitinib, likely because the drug was introduced more recently.

DISCLOSURES:

The study received no funding, and the authors had no relevant financial disclosures.

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

TOPLINE:

More gastrointestinal and nervous symptom adverse events (AEs) are linked to apremilast than deucravacitinib, which is associated with more cutaneous AEs, according to a retrospective comparison using US Food and Drug Administration (FDA) data.

METHODOLOGY:

• To evaluate the adverse events associated with apremilast, an oral phosphodiesterase-4 (PDE4) inhibitor, and deucravacitinib, an oral tyrosine kinase 2 (TYK2) inhibitor, data were drawn from the FDA’s Adverse Event Reporting System database.
• The Medex_UIMA_1.8.3 system was used to standardize drug names, and MedDRA terminology was used to encode, categorize, and localize signals.
• AE event signals were grouped by skin and subcutaneous tissue disorders, gastrointestinal disorders, infections and infestations, and nervous system disorders.

TAKEAWAY:

• There were 95,734 AE reports for apremilast and 760 AE reports for deucravacitinib, and AEs were found to be significant over time.
• The more common cutaneous AEs were psoriasis recurrence and acne (associated with apremilast) and skin burning and erythema (associated with deucravacitinib).
• The more common gastrointestinal AEs were diarrhea and nausea (apremilast) and mouth ulceration (deucravacitinib).
• Deucravacitinib-related pruritus and rash, as well as apremilast-related tension headache, were more common in women than men; deucravacitinib-related skin burning was more common in men.

IN PRACTICE:

The results “can help the doctors to choose the right treatment options based on the baseline characteristics of different patients,” said Yuanyuan Xu, a graduate student in the Department of Dermatology, Sichuan University, Chengdu, China.

SOURCE:

Mr. Xu presented the study as a poster at the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis 2024 annual meeting.

LIMITATIONS:

The study was retrospective and cannot prove causality, and there were far fewer AE reports related to deucravacitinib, likely because the drug was introduced more recently.

DISCLOSURES:

The study received no funding, and the authors had no relevant financial disclosures.

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

TOPLINE:

Rates of major adverse cardiovascular events (MACE) do not differ significantly among individual biologics used for psoriasis or psoriatic arthritis (PsA), a database analysis finds. 

METHODOLOGY:

• Data from the TriNetX health records database included 32,758 patients treated with TNF inhibitors (TNFi, 62.9%), interleukin-17 inhibitors (IL-17i, 15.4%), IL-23i (10.7%), and IL-12i/IL-23i (10.7%).
• The researchers calculated time-dependent risk for MACE using multinomial Cox proportional hazard ratios. The reference was TNFi exposure.
• Subset analyses compared MACE in patients with and without existing cardiovascular disease.

TAKEAWAY:

• Compared with TNFi use, there was no difference in the incidence of MACE events in the IL-17i, IL-23i, or IL-12i/IL-23i group.
• There were also no significant differences between biologic groups in the incidence of congestive heart failure, myocardial infarction, or cerebral vascular accident/stroke.

IN PRACTICE:

Despite some concern about increased risk for MACE with TNFi use, this study suggests no special risk for patients with psoriasis or PsA associated with TNFi vs other biologics. “Given our results, as it pertains to MACE, prescribers shouldn’t favor any one biologic class over another,” said lead investigator Shikha Singla, MD, medical director of the Psoriatic Arthritis Program at Medical College of Wisconsin in Milwaukee, Wisconsin.

SOURCE:

Bonit Gill, MD, a second-year fellow at Medical College of Wisconsin, presented the study as a poster at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis. 

LIMITATIONS:

The study’s retrospective nature makes it impossible to prove causation and the patients included in the study were from Wisconsin, which may limit generalizability.

DISCLOSURES:

Dr. Gill had no relevant financial disclosures. Other study authors participated in trials or consulted for AbbVie, AstraZeneca, Novartis, Eli Lilly, Janssen, and UCB.

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

TOPLINE:

Rates of major adverse cardiovascular events (MACE) do not differ significantly among individual biologics used for psoriasis or psoriatic arthritis (PsA), a database analysis finds. 

METHODOLOGY:

• Data from the TriNetX health records database included 32,758 patients treated with TNF inhibitors (TNFi, 62.9%), interleukin-17 inhibitors (IL-17i, 15.4%), IL-23i (10.7%), and IL-12i/IL-23i (10.7%).
• The researchers calculated time-dependent risk for MACE using multinomial Cox proportional hazard ratios. The reference was TNFi exposure.
• Subset analyses compared MACE in patients with and without existing cardiovascular disease.

TAKEAWAY:

• Compared with TNFi use, there was no difference in the incidence of MACE events in the IL-17i, IL-23i, or IL-12i/IL-23i group.
• There were also no significant differences between biologic groups in the incidence of congestive heart failure, myocardial infarction, or cerebral vascular accident/stroke.

IN PRACTICE:

Despite some concern about increased risk for MACE with TNFi use, this study suggests no special risk for patients with psoriasis or PsA associated with TNFi vs other biologics. “Given our results, as it pertains to MACE, prescribers shouldn’t favor any one biologic class over another,” said lead investigator Shikha Singla, MD, medical director of the Psoriatic Arthritis Program at Medical College of Wisconsin in Milwaukee, Wisconsin.

SOURCE:

Bonit Gill, MD, a second-year fellow at Medical College of Wisconsin, presented the study as a poster at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis. 

LIMITATIONS:

The study’s retrospective nature makes it impossible to prove causation and the patients included in the study were from Wisconsin, which may limit generalizability.

DISCLOSURES:

Dr. Gill had no relevant financial disclosures. Other study authors participated in trials or consulted for AbbVie, AstraZeneca, Novartis, Eli Lilly, Janssen, and UCB.

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

TOPLINE:

Rates of major adverse cardiovascular events (MACE) do not differ significantly among individual biologics used for psoriasis or psoriatic arthritis (PsA), a database analysis finds. 

METHODOLOGY:

• Data from the TriNetX health records database included 32,758 patients treated with TNF inhibitors (TNFi, 62.9%), interleukin-17 inhibitors (IL-17i, 15.4%), IL-23i (10.7%), and IL-12i/IL-23i (10.7%).
• The researchers calculated time-dependent risk for MACE using multinomial Cox proportional hazard ratios. The reference was TNFi exposure.
• Subset analyses compared MACE in patients with and without existing cardiovascular disease.

TAKEAWAY:

• Compared with TNFi use, there was no difference in the incidence of MACE events in the IL-17i, IL-23i, or IL-12i/IL-23i group.
• There were also no significant differences between biologic groups in the incidence of congestive heart failure, myocardial infarction, or cerebral vascular accident/stroke.

IN PRACTICE:

Despite some concern about increased risk for MACE with TNFi use, this study suggests no special risk for patients with psoriasis or PsA associated with TNFi vs other biologics. “Given our results, as it pertains to MACE, prescribers shouldn’t favor any one biologic class over another,” said lead investigator Shikha Singla, MD, medical director of the Psoriatic Arthritis Program at Medical College of Wisconsin in Milwaukee, Wisconsin.

SOURCE:

Bonit Gill, MD, a second-year fellow at Medical College of Wisconsin, presented the study as a poster at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis. 

LIMITATIONS:

The study’s retrospective nature makes it impossible to prove causation and the patients included in the study were from Wisconsin, which may limit generalizability.

DISCLOSURES:

Dr. Gill had no relevant financial disclosures. Other study authors participated in trials or consulted for AbbVie, AstraZeneca, Novartis, Eli Lilly, Janssen, and UCB.

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