MDedge Dermatology

Key clinical point: Tralokinumab was effective and safe in a real-world cohort of patients with moderate-to-severe atopic dermatitis (AD) who had failed prior systemic therapy.

Major finding: At last review (24 weeks of maximum follow-up), 59% of patients were still on tralokinumab therapy and showed a decrease in the median Numeric Rating Scale Peak Pruritus Score over the past 7 days (from 5 at baseline to 2) but without any change in the median Investigator Global Assessment score. Treatment-related adverse events were mostly mild in severity.

Study details: Findings are from an observational, prospective cohort study including 37 patients aged ≥15 years with moderate-to-severe AD who had failed prior therapy with immunosuppressants, biologics, or a Janus kinase inhibitor and received subcutaneous tralokinumab.

Disclosures: This study did not receive any funding. DJ Hijnen declared serving as an investigator for and receiving consulting fees from various sources.

Source: Schlösser AR et al. Tralokinumab for moderate-to-severe atopic dermatitis patients: First daily practice results. Clin Exp Dermatol. 2023 (Jan 26). Doi: 10.1093/ced/llad038

Key clinical point: Tralokinumab was effective and safe in a real-world cohort of patients with moderate-to-severe atopic dermatitis (AD) who had failed prior systemic therapy.

Major finding: At last review (24 weeks of maximum follow-up), 59% of patients were still on tralokinumab therapy and showed a decrease in the median Numeric Rating Scale Peak Pruritus Score over the past 7 days (from 5 at baseline to 2) but without any change in the median Investigator Global Assessment score. Treatment-related adverse events were mostly mild in severity.

Study details: Findings are from an observational, prospective cohort study including 37 patients aged ≥15 years with moderate-to-severe AD who had failed prior therapy with immunosuppressants, biologics, or a Janus kinase inhibitor and received subcutaneous tralokinumab.

Disclosures: This study did not receive any funding. DJ Hijnen declared serving as an investigator for and receiving consulting fees from various sources.

Source: Schlösser AR et al. Tralokinumab for moderate-to-severe atopic dermatitis patients: First daily practice results. Clin Exp Dermatol. 2023 (Jan 26). Doi: 10.1093/ced/llad038

Key clinical point: Tralokinumab was effective and safe in a real-world cohort of patients with moderate-to-severe atopic dermatitis (AD) who had failed prior systemic therapy.

Major finding: At last review (24 weeks of maximum follow-up), 59% of patients were still on tralokinumab therapy and showed a decrease in the median Numeric Rating Scale Peak Pruritus Score over the past 7 days (from 5 at baseline to 2) but without any change in the median Investigator Global Assessment score. Treatment-related adverse events were mostly mild in severity.

Study details: Findings are from an observational, prospective cohort study including 37 patients aged ≥15 years with moderate-to-severe AD who had failed prior therapy with immunosuppressants, biologics, or a Janus kinase inhibitor and received subcutaneous tralokinumab.

Disclosures: This study did not receive any funding. DJ Hijnen declared serving as an investigator for and receiving consulting fees from various sources.

Source: Schlösser AR et al. Tralokinumab for moderate-to-severe atopic dermatitis patients: First daily practice results. Clin Exp Dermatol. 2023 (Jan 26). Doi: 10.1093/ced/llad038

Key clinical point: Children born by cesarean section or instrumental vaginal delivery are at a greater risk of developing atopic dermatitis (AD) compared with those born by uncomplicated vaginal delivery.

Major finding: Children aged <1 year born by instrumental vaginal delivery (adjusted hazard ratio [aHR] 1.10; 95% CI 1.07-1.13), emergency cesarean section (aHR 1.12; 95% CI 1.10-1.15), and elective caesarean section (aHR 1.13; 95% CI 1.10-1.16) were at a higher risk for AD compared with those born by uncomplicated vaginal delivery, with the risk being similar in children aged ≥1 year.

Study details: This prospective population-based study included 1,399,406 children aged ≤5 years with available information on the mode of delivery and mother's identity.

Disclosures: This study was supported by the Swedish Research Council, Swedish Heart-Lung Foundation, and Stiftelsen Frimurare Barnhuset i Stockholm. The authors declared no conflicts of interest.

Source: Mubanga M et al. Mode of delivery and offspring atopic dermatitis in a Swedish nationwide study. Pediatr Allergy Immunol. 2023;34(1):e13904 (Jan 11). Doi: 10.1111/pai.13904

Key clinical point: Children born by cesarean section or instrumental vaginal delivery are at a greater risk of developing atopic dermatitis (AD) compared with those born by uncomplicated vaginal delivery.

Major finding: Children aged <1 year born by instrumental vaginal delivery (adjusted hazard ratio [aHR] 1.10; 95% CI 1.07-1.13), emergency cesarean section (aHR 1.12; 95% CI 1.10-1.15), and elective caesarean section (aHR 1.13; 95% CI 1.10-1.16) were at a higher risk for AD compared with those born by uncomplicated vaginal delivery, with the risk being similar in children aged ≥1 year.

Study details: This prospective population-based study included 1,399,406 children aged ≤5 years with available information on the mode of delivery and mother's identity.

Disclosures: This study was supported by the Swedish Research Council, Swedish Heart-Lung Foundation, and Stiftelsen Frimurare Barnhuset i Stockholm. The authors declared no conflicts of interest.

Source: Mubanga M et al. Mode of delivery and offspring atopic dermatitis in a Swedish nationwide study. Pediatr Allergy Immunol. 2023;34(1):e13904 (Jan 11). Doi: 10.1111/pai.13904

Key clinical point: Children born by cesarean section or instrumental vaginal delivery are at a greater risk of developing atopic dermatitis (AD) compared with those born by uncomplicated vaginal delivery.

Major finding: Children aged <1 year born by instrumental vaginal delivery (adjusted hazard ratio [aHR] 1.10; 95% CI 1.07-1.13), emergency cesarean section (aHR 1.12; 95% CI 1.10-1.15), and elective caesarean section (aHR 1.13; 95% CI 1.10-1.16) were at a higher risk for AD compared with those born by uncomplicated vaginal delivery, with the risk being similar in children aged ≥1 year.

Study details: This prospective population-based study included 1,399,406 children aged ≤5 years with available information on the mode of delivery and mother's identity.

Disclosures: This study was supported by the Swedish Research Council, Swedish Heart-Lung Foundation, and Stiftelsen Frimurare Barnhuset i Stockholm. The authors declared no conflicts of interest.

Source: Mubanga M et al. Mode of delivery and offspring atopic dermatitis in a Swedish nationwide study. Pediatr Allergy Immunol. 2023;34(1):e13904 (Jan 11). Doi: 10.1111/pai.13904

Key clinical point: Dupilumab with or without concomitant topical corticosteroids (TCS) was safe and provided rapid and sustained improvements in atopic dermatitis (AD) signs and symptoms in patients with erythrodermic AD.

Major finding: At week 16, dupilumab without and with concomitant TCS vs placebo provided significant improvements in the percentage of AD-affected body surface area (P = .02 and P < .001, respectively), Eczema Area and Severity Index score (P = .002 and P < .001, respectively), and Peak Pruritus Numerical Rating Scale score (P < .001 and P = .002, respectively), with improvements observed from week 1. Most treatment-emergent adverse events were mild or moderate in severity.

Study details: This post hoc analysis of six multicenter randomized trials included 209 patients with erythrodermic AD who were randomly assigned to receive dupilumab or placebo (both with or without concomitant TCS).

Disclosures: This study was funded by Sanofi-Regeneron Pharmaceuticals Inc. Some authors reported ties with various organizations, including Sanofi/Regeneron. Four authors declared being employees of or holding stock or stock options in Sanofi/Regeneron.

Source: Paller AS et al. Efficacy and safety of dupilumab in patients with erythrodermic atopic dermatitis: A post hoc analysis of 6 randomized clinical trials. JAMA Dermatol. 2023 (Feb 1). Doi: 10.1001/jamadermatol.2022.6192

Key clinical point: Dupilumab with or without concomitant topical corticosteroids (TCS) was safe and provided rapid and sustained improvements in atopic dermatitis (AD) signs and symptoms in patients with erythrodermic AD.

Major finding: At week 16, dupilumab without and with concomitant TCS vs placebo provided significant improvements in the percentage of AD-affected body surface area (P = .02 and P < .001, respectively), Eczema Area and Severity Index score (P = .002 and P < .001, respectively), and Peak Pruritus Numerical Rating Scale score (P < .001 and P = .002, respectively), with improvements observed from week 1. Most treatment-emergent adverse events were mild or moderate in severity.

Study details: This post hoc analysis of six multicenter randomized trials included 209 patients with erythrodermic AD who were randomly assigned to receive dupilumab or placebo (both with or without concomitant TCS).

Disclosures: This study was funded by Sanofi-Regeneron Pharmaceuticals Inc. Some authors reported ties with various organizations, including Sanofi/Regeneron. Four authors declared being employees of or holding stock or stock options in Sanofi/Regeneron.

Source: Paller AS et al. Efficacy and safety of dupilumab in patients with erythrodermic atopic dermatitis: A post hoc analysis of 6 randomized clinical trials. JAMA Dermatol. 2023 (Feb 1). Doi: 10.1001/jamadermatol.2022.6192

Key clinical point: Dupilumab with or without concomitant topical corticosteroids (TCS) was safe and provided rapid and sustained improvements in atopic dermatitis (AD) signs and symptoms in patients with erythrodermic AD.

Major finding: At week 16, dupilumab without and with concomitant TCS vs placebo provided significant improvements in the percentage of AD-affected body surface area (P = .02 and P < .001, respectively), Eczema Area and Severity Index score (P = .002 and P < .001, respectively), and Peak Pruritus Numerical Rating Scale score (P < .001 and P = .002, respectively), with improvements observed from week 1. Most treatment-emergent adverse events were mild or moderate in severity.

Study details: This post hoc analysis of six multicenter randomized trials included 209 patients with erythrodermic AD who were randomly assigned to receive dupilumab or placebo (both with or without concomitant TCS).

Disclosures: This study was funded by Sanofi-Regeneron Pharmaceuticals Inc. Some authors reported ties with various organizations, including Sanofi/Regeneron. Four authors declared being employees of or holding stock or stock options in Sanofi/Regeneron.

Source: Paller AS et al. Efficacy and safety of dupilumab in patients with erythrodermic atopic dermatitis: A post hoc analysis of 6 randomized clinical trials. JAMA Dermatol. 2023 (Feb 1). Doi: 10.1001/jamadermatol.2022.6192

The latest study to show high efficacy of doxycycline post-exposure prophylaxis (Doxy PEP) in preventing sexually transmitted infections among men who have sex with men (MSM) adds a new twist, showing – for the first time – reductions in gonorrhea among those receiving the meningococcal B vaccine.

“Among men who have sex with men on HIV PrEP, doxycycline PEP significantly reduced the incidence of chlamydia and syphilis and also had a significant impact on the incidence of gonorrhea,” said first author Jean-Michel Molina, MD, PhD, in presenting the findings at the Conference on Retroviruses and Opportunistic Infections.

In addition, “two doses of the meningococcal B vaccine reduced the incidence of a first episode of gonorrhea by roughly 50% among men who have sex with men,” said Dr. Molina, a professor of infectious diseases at the University of Paris, and head of the Infectious Diseases Department at the Saint-Louis and Lariboisière Hospitals, Paris.

Whereas the advent of PrEP has been associated with significant reductions in HIV transmission, rates of STIs have conversely been on the rise among MSM, specifically among those receiving PrEP.

Post-exposure prophylaxis with Doxy PEP has been shown to reduce the incidence of chlamydia and syphilis by approximately 70%; however, effects on prevention of gonorrhea have been less clear.

Meningococcal B vaccination has, meanwhile, shown intriguing reductions of gonorrhea incidence of as much as 26%-46% in some observational studies.

Therefore, Dr. Molina and colleagues decided to further investigate Doxy PEP as well as the meningococcal B vaccine in prevention of STIs.

For the ANRS 174 DOXYVAC trial, they enrolled 546 MSM in the open-label, multicenter study between January 2021 and July 2022.

The men were randomly assigned to one of 4 groups: doxycycline postexposure prophylaxis (Doxy PEP: 200 mg; n = 332), no Doxy PEP (n = 170), two shots of meningococcal B vaccine (4CMenB vaccine; n = 257), or no 4CMenB vaccine (n = 245).

All participants were assigned to their groups within 72 hours of condomless sex.

The men, who had a median age of 39, had a median time of PrEP use of 42 months, a history of an STI in the past year, and their median number of sexual partners in the past 3 months was 10.

Their characteristics were well-balanced across the treatment groups. After discontinuations of 54 patients across the groups, the final analysis included 502 participants.

With a median follow-up of 9 months, the intent-to-treat analysis showed 13 subjects had a first episode of chlamydia or syphilis in the Doxy PEP group, versus 49 subjects infected in the no Doxy PEP arm, for an incidence of 5.6 versus 35.4 per 100 person-years, respectively (adjusted hazard ratio, 0.16; P < .0001).

Infection specifically with chlamydia occurred among 21 men with no Doxy PEP versus 5 receiving Dox PEP (19.3 vs. 2.1 per 100 person-years, respectively; HR, 0.11; P < .0001).

And infection with syphilis occurred in 18 men receiving no Doxy PEP versus 8 receiving the treatment (16.3 vs. 3.4 per 100 person-years, respectively; HR, 0.21; P < .001).

The corresponding rates for gonorrhea infection were an incidence 41.3 versus 20.5 per 100 person-years, in the no Doxy PEP versus Doxy PEP arms, respectively (adjusted HR, 0.49; P = .001), and 29.4 versus 16.8 per 100 person-years for Mycoplasma genitalium infection (aHR, 0.55; P = .015).

Throughout the study, about 80% of patients in the Doxy PEP group reported using the prophylaxis treatment after their most recent sexual intercourse, with subjects reporting taking a median of seven pills per month.

In the vaccine/no vaccine comparisons, 32 subjects in the no meningococcal vaccine group were infected with a first gonorrhea infection, compared with 17 in the vaccine group, representing an incidence of 19.7 versus 9.8 per 100 person-years, respectively (adjusted HR, 0.49; P = .016), which Dr. Molina called “highly significant.”

An analysis of the cumulative incidence of gonorrhea infection with the meningococcal vaccine showed rates in the no vaccine versus vaccine groups of 30.4 versus 20.1 per 100 person-years, respectively; however, statistical significance was not reached (aHR, 0.66; P = .052).

Importantly, there were no significant interactions in the results between those receiving Doxy PEP or the 4CMenB vaccine group, and there were no significant differences in drug-related serious adverse events between the groups.

Dr. Molina noted that the meningococcal B vaccine is known to contain key antigens that are shared between meningitis and gonorrhea, which could explain the benefits.

Although chlamydia and syphilis thus far appear to remain susceptible to Doxy PEP, resistances with gonorrhea remain a concern, hence the ability of the vaccine to provide some protection could be an added bonus.

“We know that [gonorrhea] is able to very quickly develop resistances to any antibiotics, so that was why we wanted to look beyond the antibiotic prophylaxis,” said Dr. Molina.

Among questions to explore looking ahead is the potential longevity of protection with the vaccine.

“We don’t know at this point how long the protection with the vaccine could last, or if [people] may need booster injections, for instance, but the literature suggests benefits for at least a year,” Dr. Molina said. “We are still monitoring the patients in the study to see what happens.”

He added that combination of the interventions may be of benefit.

“In the future, we think we may need to combine these approaches if we want to meet the WHO/UNAIDS targets to reduce the incidence of HIV and STIs by 90% by 2030.”

Commenting on the study, CROI vice-chair Landon Myer, MD, PhD, noted that “gonorrhea develops resistance quickly and can be hard to treat or prophylaxis, so the vaccine finding, which was hinted at by previous observational data, is really important.”

He agrees that “the duration of protective efficacy – a big thing in vaccines – is unknown.”

“Still, this is really significant,” Dr. Myer stressed. “An efficacious vaccine against a stubborn sexually transmitted infection.”

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

The latest study to show high efficacy of doxycycline post-exposure prophylaxis (Doxy PEP) in preventing sexually transmitted infections among men who have sex with men (MSM) adds a new twist, showing – for the first time – reductions in gonorrhea among those receiving the meningococcal B vaccine.

“Among men who have sex with men on HIV PrEP, doxycycline PEP significantly reduced the incidence of chlamydia and syphilis and also had a significant impact on the incidence of gonorrhea,” said first author Jean-Michel Molina, MD, PhD, in presenting the findings at the Conference on Retroviruses and Opportunistic Infections.

In addition, “two doses of the meningococcal B vaccine reduced the incidence of a first episode of gonorrhea by roughly 50% among men who have sex with men,” said Dr. Molina, a professor of infectious diseases at the University of Paris, and head of the Infectious Diseases Department at the Saint-Louis and Lariboisière Hospitals, Paris.

Whereas the advent of PrEP has been associated with significant reductions in HIV transmission, rates of STIs have conversely been on the rise among MSM, specifically among those receiving PrEP.

Post-exposure prophylaxis with Doxy PEP has been shown to reduce the incidence of chlamydia and syphilis by approximately 70%; however, effects on prevention of gonorrhea have been less clear.

Meningococcal B vaccination has, meanwhile, shown intriguing reductions of gonorrhea incidence of as much as 26%-46% in some observational studies.

Therefore, Dr. Molina and colleagues decided to further investigate Doxy PEP as well as the meningococcal B vaccine in prevention of STIs.

For the ANRS 174 DOXYVAC trial, they enrolled 546 MSM in the open-label, multicenter study between January 2021 and July 2022.

The men were randomly assigned to one of 4 groups: doxycycline postexposure prophylaxis (Doxy PEP: 200 mg; n = 332), no Doxy PEP (n = 170), two shots of meningococcal B vaccine (4CMenB vaccine; n = 257), or no 4CMenB vaccine (n = 245).

All participants were assigned to their groups within 72 hours of condomless sex.

The men, who had a median age of 39, had a median time of PrEP use of 42 months, a history of an STI in the past year, and their median number of sexual partners in the past 3 months was 10.

Their characteristics were well-balanced across the treatment groups. After discontinuations of 54 patients across the groups, the final analysis included 502 participants.

With a median follow-up of 9 months, the intent-to-treat analysis showed 13 subjects had a first episode of chlamydia or syphilis in the Doxy PEP group, versus 49 subjects infected in the no Doxy PEP arm, for an incidence of 5.6 versus 35.4 per 100 person-years, respectively (adjusted hazard ratio, 0.16; P < .0001).

Infection specifically with chlamydia occurred among 21 men with no Doxy PEP versus 5 receiving Dox PEP (19.3 vs. 2.1 per 100 person-years, respectively; HR, 0.11; P < .0001).

And infection with syphilis occurred in 18 men receiving no Doxy PEP versus 8 receiving the treatment (16.3 vs. 3.4 per 100 person-years, respectively; HR, 0.21; P < .001).

The corresponding rates for gonorrhea infection were an incidence 41.3 versus 20.5 per 100 person-years, in the no Doxy PEP versus Doxy PEP arms, respectively (adjusted HR, 0.49; P = .001), and 29.4 versus 16.8 per 100 person-years for Mycoplasma genitalium infection (aHR, 0.55; P = .015).

Throughout the study, about 80% of patients in the Doxy PEP group reported using the prophylaxis treatment after their most recent sexual intercourse, with subjects reporting taking a median of seven pills per month.

In the vaccine/no vaccine comparisons, 32 subjects in the no meningococcal vaccine group were infected with a first gonorrhea infection, compared with 17 in the vaccine group, representing an incidence of 19.7 versus 9.8 per 100 person-years, respectively (adjusted HR, 0.49; P = .016), which Dr. Molina called “highly significant.”

An analysis of the cumulative incidence of gonorrhea infection with the meningococcal vaccine showed rates in the no vaccine versus vaccine groups of 30.4 versus 20.1 per 100 person-years, respectively; however, statistical significance was not reached (aHR, 0.66; P = .052).

Importantly, there were no significant interactions in the results between those receiving Doxy PEP or the 4CMenB vaccine group, and there were no significant differences in drug-related serious adverse events between the groups.

Dr. Molina noted that the meningococcal B vaccine is known to contain key antigens that are shared between meningitis and gonorrhea, which could explain the benefits.

Although chlamydia and syphilis thus far appear to remain susceptible to Doxy PEP, resistances with gonorrhea remain a concern, hence the ability of the vaccine to provide some protection could be an added bonus.

“We know that [gonorrhea] is able to very quickly develop resistances to any antibiotics, so that was why we wanted to look beyond the antibiotic prophylaxis,” said Dr. Molina.

Among questions to explore looking ahead is the potential longevity of protection with the vaccine.

“We don’t know at this point how long the protection with the vaccine could last, or if [people] may need booster injections, for instance, but the literature suggests benefits for at least a year,” Dr. Molina said. “We are still monitoring the patients in the study to see what happens.”

He added that combination of the interventions may be of benefit.

“In the future, we think we may need to combine these approaches if we want to meet the WHO/UNAIDS targets to reduce the incidence of HIV and STIs by 90% by 2030.”

Commenting on the study, CROI vice-chair Landon Myer, MD, PhD, noted that “gonorrhea develops resistance quickly and can be hard to treat or prophylaxis, so the vaccine finding, which was hinted at by previous observational data, is really important.”

He agrees that “the duration of protective efficacy – a big thing in vaccines – is unknown.”

“Still, this is really significant,” Dr. Myer stressed. “An efficacious vaccine against a stubborn sexually transmitted infection.”

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

The latest study to show high efficacy of doxycycline post-exposure prophylaxis (Doxy PEP) in preventing sexually transmitted infections among men who have sex with men (MSM) adds a new twist, showing – for the first time – reductions in gonorrhea among those receiving the meningococcal B vaccine.

“Among men who have sex with men on HIV PrEP, doxycycline PEP significantly reduced the incidence of chlamydia and syphilis and also had a significant impact on the incidence of gonorrhea,” said first author Jean-Michel Molina, MD, PhD, in presenting the findings at the Conference on Retroviruses and Opportunistic Infections.

In addition, “two doses of the meningococcal B vaccine reduced the incidence of a first episode of gonorrhea by roughly 50% among men who have sex with men,” said Dr. Molina, a professor of infectious diseases at the University of Paris, and head of the Infectious Diseases Department at the Saint-Louis and Lariboisière Hospitals, Paris.

Whereas the advent of PrEP has been associated with significant reductions in HIV transmission, rates of STIs have conversely been on the rise among MSM, specifically among those receiving PrEP.

Post-exposure prophylaxis with Doxy PEP has been shown to reduce the incidence of chlamydia and syphilis by approximately 70%; however, effects on prevention of gonorrhea have been less clear.

Meningococcal B vaccination has, meanwhile, shown intriguing reductions of gonorrhea incidence of as much as 26%-46% in some observational studies.

Therefore, Dr. Molina and colleagues decided to further investigate Doxy PEP as well as the meningococcal B vaccine in prevention of STIs.

For the ANRS 174 DOXYVAC trial, they enrolled 546 MSM in the open-label, multicenter study between January 2021 and July 2022.

The men were randomly assigned to one of 4 groups: doxycycline postexposure prophylaxis (Doxy PEP: 200 mg; n = 332), no Doxy PEP (n = 170), two shots of meningococcal B vaccine (4CMenB vaccine; n = 257), or no 4CMenB vaccine (n = 245).

All participants were assigned to their groups within 72 hours of condomless sex.

The men, who had a median age of 39, had a median time of PrEP use of 42 months, a history of an STI in the past year, and their median number of sexual partners in the past 3 months was 10.

Their characteristics were well-balanced across the treatment groups. After discontinuations of 54 patients across the groups, the final analysis included 502 participants.

With a median follow-up of 9 months, the intent-to-treat analysis showed 13 subjects had a first episode of chlamydia or syphilis in the Doxy PEP group, versus 49 subjects infected in the no Doxy PEP arm, for an incidence of 5.6 versus 35.4 per 100 person-years, respectively (adjusted hazard ratio, 0.16; P < .0001).

Infection specifically with chlamydia occurred among 21 men with no Doxy PEP versus 5 receiving Dox PEP (19.3 vs. 2.1 per 100 person-years, respectively; HR, 0.11; P < .0001).

And infection with syphilis occurred in 18 men receiving no Doxy PEP versus 8 receiving the treatment (16.3 vs. 3.4 per 100 person-years, respectively; HR, 0.21; P < .001).

The corresponding rates for gonorrhea infection were an incidence 41.3 versus 20.5 per 100 person-years, in the no Doxy PEP versus Doxy PEP arms, respectively (adjusted HR, 0.49; P = .001), and 29.4 versus 16.8 per 100 person-years for Mycoplasma genitalium infection (aHR, 0.55; P = .015).

Throughout the study, about 80% of patients in the Doxy PEP group reported using the prophylaxis treatment after their most recent sexual intercourse, with subjects reporting taking a median of seven pills per month.

In the vaccine/no vaccine comparisons, 32 subjects in the no meningococcal vaccine group were infected with a first gonorrhea infection, compared with 17 in the vaccine group, representing an incidence of 19.7 versus 9.8 per 100 person-years, respectively (adjusted HR, 0.49; P = .016), which Dr. Molina called “highly significant.”

An analysis of the cumulative incidence of gonorrhea infection with the meningococcal vaccine showed rates in the no vaccine versus vaccine groups of 30.4 versus 20.1 per 100 person-years, respectively; however, statistical significance was not reached (aHR, 0.66; P = .052).

Importantly, there were no significant interactions in the results between those receiving Doxy PEP or the 4CMenB vaccine group, and there were no significant differences in drug-related serious adverse events between the groups.

Dr. Molina noted that the meningococcal B vaccine is known to contain key antigens that are shared between meningitis and gonorrhea, which could explain the benefits.

Although chlamydia and syphilis thus far appear to remain susceptible to Doxy PEP, resistances with gonorrhea remain a concern, hence the ability of the vaccine to provide some protection could be an added bonus.

“We know that [gonorrhea] is able to very quickly develop resistances to any antibiotics, so that was why we wanted to look beyond the antibiotic prophylaxis,” said Dr. Molina.

Among questions to explore looking ahead is the potential longevity of protection with the vaccine.

“We don’t know at this point how long the protection with the vaccine could last, or if [people] may need booster injections, for instance, but the literature suggests benefits for at least a year,” Dr. Molina said. “We are still monitoring the patients in the study to see what happens.”

He added that combination of the interventions may be of benefit.

“In the future, we think we may need to combine these approaches if we want to meet the WHO/UNAIDS targets to reduce the incidence of HIV and STIs by 90% by 2030.”

Commenting on the study, CROI vice-chair Landon Myer, MD, PhD, noted that “gonorrhea develops resistance quickly and can be hard to treat or prophylaxis, so the vaccine finding, which was hinted at by previous observational data, is really important.”

He agrees that “the duration of protective efficacy – a big thing in vaccines – is unknown.”

“Still, this is really significant,” Dr. Myer stressed. “An efficacious vaccine against a stubborn sexually transmitted infection.”

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

Physician groups saw staff-to-physician ratios decline even as their workforce expenses rose between 2019 and 2021, according to recent reports from the American Medical Group Association (AMGA) and the Medical Group Management Association (MGMA).

As patients started to return to doctors’ offices as the pandemic eased in 2021, physician groups found it increasingly difficult to recruit and retain lower-level clinicians, including medical assistants and LPNs, officials from both associations told this news organization. Many clinics had to raise their pay scales to be competitive with employers in other fields, and some had to hire higher-priced RNs to keep their practices running.

The AMGA report was based largely on data from groups of over 500 physicians, mostly affiliated with health systems. According to a news release accompanying the report, the ratio between full-time equivalent (FTE) clinic staff and health care professionals in direct patient care dropped by 11.3% between 2019 and 2021. The ratio of medical assistants (MAs) to clinicians declined by a greater percentage.

In the MGMA report, which represented about 4,000 practices ranging from very small (two doctors) to very large groups, total support staff per FTE primary-care physician dropped by 18% from 2019 to 2021 in independent groups and by 13% in hospital-affiliated groups. The ratios decreased by smaller amounts in surgical practices.

In contrast, nonsurgical specialty groups under both types of ownership saw their staffing ratios rise slightly.

Although it’s unclear why medical specialties increased their staff while other types of specialties lost employees, Ron Holder, MHA, chief operating officer of MGMA, said that some specialists may have opened more ancillary facilities and hired new employees to recoup revenue lost during the pandemic.
 

Expenses rise sharply

The AMGA report found that staffing expenses for the surveyed groups increased by 15% between 2019 and 2021.

“We saw a decrease in staff and an increase in expenses during that time period, and there are a few reasons for that,” Rose Wagner, RN, chief operating officer of AMGA, said. “Groups increased salaries to maintain staff. We also saw lower-paid staff find other jobs outside of health care. For example, medical assistants and receptionists could find jobs outside of health care that paid more. [Open positions] got back-filled with other higher paid staff, such as RNs, doing lower skilled jobs.”

Mr. Holder added that rising wages in other sectors made leaving physician groups more attractive for employees.

“Three years ago, there weren’t many positions in a medical practice where you were competing with Chick-fil-A or Taco Bell,” he said. In Denver, where Mr. Holder is based, “every restaurant in town is now advertising $17-$19 [hourly] starting pay just to do fast food. That causes practices to either lose employees or pay more for the employees they have. So that raises per-employee expense significantly,” he said.

Mr. Holder noted that inflation also has driven up wages as employees demand higher pay to keep up with the cost of living.
 

Unusual exodus of employees

Fred Horton, MHA, president of AMGA Consulting, said he has never seen so many people leaving health care for other occupations.

Some exits resulted from practices laying people off early in the pandemic, but most staff members who left practices were seeking higher pay, he said. In addition, Ms. Wagner noted, some staff members didn’t want to be exposed to COVID at work.

“There was an exodus from health care that was different from what we’d experienced in the past,” Mr. Horton added. “It’s still extremely challenging to get up to the staffing levels that are appropriate.”

Mr. Holder, however, said that the situation is slowly improving. “Health care is fairly recession-proof, because people need it. So when you see companies in other industries closing shop or reducing their head count, that actually helps health care recruiting in some jobs. And people are coming back to the workplace who previously were worried about COVID or didn’t want to get the vaccine.”
 

Paying more for nurses

In 2021, groups adopted a variety of tactics to adapt to the pandemic and respond to patient demand, the AMGA survey shows. Forty percent of system-affiliated groups and 18% of independent practices changed registered nurses’ responsibilities, in many cases having them do the work of medical assistants who were in short supply.

Some practices hired RNs, who have historically been utilized less by primary care than by surgical specialties, Mr. Holder noted. Other clinics paid temp agencies to supply nurses at a steep cost.

“When you’re short staffed, you end up paying more overtime, you end up paying temporary agencies at higher dollars, and you hire higher skilled people to do lower-skilled work,” Ms. Wagner said.

Meanwhile, many physician groups tried to cope with the physician shortage by bringing on more advanced practice clinicians (APCs), including nurse practitioners (NPs) and physician assistants (PAs). Seventy percent of the AMGA groups used this strategy, the report revealed.

“The use of APCs has been steadily increasing as groups try to adopt a lower-cost care model in the midst of a nationwide physician shortage,” Ms. Wagner said in the press release.
 

Changes in patient care

About half of the groups in the AMGA survey said they changed their staff structure to allow APCs to carry their own patient panels. Although most of these clinicians were probably under physician supervision, nearly half of the states now allow NPs to practice autonomously.

Mr. Horton cautioned that APCs can’t fully substitute for physicians and require the same support staff that doctors do if they have their own panels. In primary care groups, Mr. Holder noted, the average salary of an APC “is continuing to rise, and there isn’t a huge difference between what they and doctors make.”

Nevertheless, he added, “there are more NPs and PAs being added to the marketplace all the time, whereas [physician] residency programs aren’t really growing. There are caps on the number of residency positions, and some physicians are retiring. So the clock is ticking to the point where someday doctors will be grossly outnumbered by NPs.”

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

Physician groups saw staff-to-physician ratios decline even as their workforce expenses rose between 2019 and 2021, according to recent reports from the American Medical Group Association (AMGA) and the Medical Group Management Association (MGMA).

As patients started to return to doctors’ offices as the pandemic eased in 2021, physician groups found it increasingly difficult to recruit and retain lower-level clinicians, including medical assistants and LPNs, officials from both associations told this news organization. Many clinics had to raise their pay scales to be competitive with employers in other fields, and some had to hire higher-priced RNs to keep their practices running.

The AMGA report was based largely on data from groups of over 500 physicians, mostly affiliated with health systems. According to a news release accompanying the report, the ratio between full-time equivalent (FTE) clinic staff and health care professionals in direct patient care dropped by 11.3% between 2019 and 2021. The ratio of medical assistants (MAs) to clinicians declined by a greater percentage.

In the MGMA report, which represented about 4,000 practices ranging from very small (two doctors) to very large groups, total support staff per FTE primary-care physician dropped by 18% from 2019 to 2021 in independent groups and by 13% in hospital-affiliated groups. The ratios decreased by smaller amounts in surgical practices.

In contrast, nonsurgical specialty groups under both types of ownership saw their staffing ratios rise slightly.

Although it’s unclear why medical specialties increased their staff while other types of specialties lost employees, Ron Holder, MHA, chief operating officer of MGMA, said that some specialists may have opened more ancillary facilities and hired new employees to recoup revenue lost during the pandemic.
 

Expenses rise sharply

The AMGA report found that staffing expenses for the surveyed groups increased by 15% between 2019 and 2021.

“We saw a decrease in staff and an increase in expenses during that time period, and there are a few reasons for that,” Rose Wagner, RN, chief operating officer of AMGA, said. “Groups increased salaries to maintain staff. We also saw lower-paid staff find other jobs outside of health care. For example, medical assistants and receptionists could find jobs outside of health care that paid more. [Open positions] got back-filled with other higher paid staff, such as RNs, doing lower skilled jobs.”

Mr. Holder added that rising wages in other sectors made leaving physician groups more attractive for employees.

“Three years ago, there weren’t many positions in a medical practice where you were competing with Chick-fil-A or Taco Bell,” he said. In Denver, where Mr. Holder is based, “every restaurant in town is now advertising $17-$19 [hourly] starting pay just to do fast food. That causes practices to either lose employees or pay more for the employees they have. So that raises per-employee expense significantly,” he said.

Mr. Holder noted that inflation also has driven up wages as employees demand higher pay to keep up with the cost of living.
 

Unusual exodus of employees

Fred Horton, MHA, president of AMGA Consulting, said he has never seen so many people leaving health care for other occupations.

Some exits resulted from practices laying people off early in the pandemic, but most staff members who left practices were seeking higher pay, he said. In addition, Ms. Wagner noted, some staff members didn’t want to be exposed to COVID at work.

“There was an exodus from health care that was different from what we’d experienced in the past,” Mr. Horton added. “It’s still extremely challenging to get up to the staffing levels that are appropriate.”

Mr. Holder, however, said that the situation is slowly improving. “Health care is fairly recession-proof, because people need it. So when you see companies in other industries closing shop or reducing their head count, that actually helps health care recruiting in some jobs. And people are coming back to the workplace who previously were worried about COVID or didn’t want to get the vaccine.”
 

Paying more for nurses

In 2021, groups adopted a variety of tactics to adapt to the pandemic and respond to patient demand, the AMGA survey shows. Forty percent of system-affiliated groups and 18% of independent practices changed registered nurses’ responsibilities, in many cases having them do the work of medical assistants who were in short supply.

Some practices hired RNs, who have historically been utilized less by primary care than by surgical specialties, Mr. Holder noted. Other clinics paid temp agencies to supply nurses at a steep cost.

“When you’re short staffed, you end up paying more overtime, you end up paying temporary agencies at higher dollars, and you hire higher skilled people to do lower-skilled work,” Ms. Wagner said.

Meanwhile, many physician groups tried to cope with the physician shortage by bringing on more advanced practice clinicians (APCs), including nurse practitioners (NPs) and physician assistants (PAs). Seventy percent of the AMGA groups used this strategy, the report revealed.

“The use of APCs has been steadily increasing as groups try to adopt a lower-cost care model in the midst of a nationwide physician shortage,” Ms. Wagner said in the press release.
 

Changes in patient care

About half of the groups in the AMGA survey said they changed their staff structure to allow APCs to carry their own patient panels. Although most of these clinicians were probably under physician supervision, nearly half of the states now allow NPs to practice autonomously.

Mr. Horton cautioned that APCs can’t fully substitute for physicians and require the same support staff that doctors do if they have their own panels. In primary care groups, Mr. Holder noted, the average salary of an APC “is continuing to rise, and there isn’t a huge difference between what they and doctors make.”

Nevertheless, he added, “there are more NPs and PAs being added to the marketplace all the time, whereas [physician] residency programs aren’t really growing. There are caps on the number of residency positions, and some physicians are retiring. So the clock is ticking to the point where someday doctors will be grossly outnumbered by NPs.”

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

Physician groups saw staff-to-physician ratios decline even as their workforce expenses rose between 2019 and 2021, according to recent reports from the American Medical Group Association (AMGA) and the Medical Group Management Association (MGMA).

As patients started to return to doctors’ offices as the pandemic eased in 2021, physician groups found it increasingly difficult to recruit and retain lower-level clinicians, including medical assistants and LPNs, officials from both associations told this news organization. Many clinics had to raise their pay scales to be competitive with employers in other fields, and some had to hire higher-priced RNs to keep their practices running.

The AMGA report was based largely on data from groups of over 500 physicians, mostly affiliated with health systems. According to a news release accompanying the report, the ratio between full-time equivalent (FTE) clinic staff and health care professionals in direct patient care dropped by 11.3% between 2019 and 2021. The ratio of medical assistants (MAs) to clinicians declined by a greater percentage.

In the MGMA report, which represented about 4,000 practices ranging from very small (two doctors) to very large groups, total support staff per FTE primary-care physician dropped by 18% from 2019 to 2021 in independent groups and by 13% in hospital-affiliated groups. The ratios decreased by smaller amounts in surgical practices.

In contrast, nonsurgical specialty groups under both types of ownership saw their staffing ratios rise slightly.

Although it’s unclear why medical specialties increased their staff while other types of specialties lost employees, Ron Holder, MHA, chief operating officer of MGMA, said that some specialists may have opened more ancillary facilities and hired new employees to recoup revenue lost during the pandemic.
 

Expenses rise sharply

The AMGA report found that staffing expenses for the surveyed groups increased by 15% between 2019 and 2021.

“We saw a decrease in staff and an increase in expenses during that time period, and there are a few reasons for that,” Rose Wagner, RN, chief operating officer of AMGA, said. “Groups increased salaries to maintain staff. We also saw lower-paid staff find other jobs outside of health care. For example, medical assistants and receptionists could find jobs outside of health care that paid more. [Open positions] got back-filled with other higher paid staff, such as RNs, doing lower skilled jobs.”

Mr. Holder added that rising wages in other sectors made leaving physician groups more attractive for employees.

“Three years ago, there weren’t many positions in a medical practice where you were competing with Chick-fil-A or Taco Bell,” he said. In Denver, where Mr. Holder is based, “every restaurant in town is now advertising $17-$19 [hourly] starting pay just to do fast food. That causes practices to either lose employees or pay more for the employees they have. So that raises per-employee expense significantly,” he said.

Mr. Holder noted that inflation also has driven up wages as employees demand higher pay to keep up with the cost of living.
 

Unusual exodus of employees

Fred Horton, MHA, president of AMGA Consulting, said he has never seen so many people leaving health care for other occupations.

Some exits resulted from practices laying people off early in the pandemic, but most staff members who left practices were seeking higher pay, he said. In addition, Ms. Wagner noted, some staff members didn’t want to be exposed to COVID at work.

“There was an exodus from health care that was different from what we’d experienced in the past,” Mr. Horton added. “It’s still extremely challenging to get up to the staffing levels that are appropriate.”

Mr. Holder, however, said that the situation is slowly improving. “Health care is fairly recession-proof, because people need it. So when you see companies in other industries closing shop or reducing their head count, that actually helps health care recruiting in some jobs. And people are coming back to the workplace who previously were worried about COVID or didn’t want to get the vaccine.”
 

Paying more for nurses

In 2021, groups adopted a variety of tactics to adapt to the pandemic and respond to patient demand, the AMGA survey shows. Forty percent of system-affiliated groups and 18% of independent practices changed registered nurses’ responsibilities, in many cases having them do the work of medical assistants who were in short supply.

Some practices hired RNs, who have historically been utilized less by primary care than by surgical specialties, Mr. Holder noted. Other clinics paid temp agencies to supply nurses at a steep cost.

“When you’re short staffed, you end up paying more overtime, you end up paying temporary agencies at higher dollars, and you hire higher skilled people to do lower-skilled work,” Ms. Wagner said.

Meanwhile, many physician groups tried to cope with the physician shortage by bringing on more advanced practice clinicians (APCs), including nurse practitioners (NPs) and physician assistants (PAs). Seventy percent of the AMGA groups used this strategy, the report revealed.

“The use of APCs has been steadily increasing as groups try to adopt a lower-cost care model in the midst of a nationwide physician shortage,” Ms. Wagner said in the press release.
 

Changes in patient care

About half of the groups in the AMGA survey said they changed their staff structure to allow APCs to carry their own patient panels. Although most of these clinicians were probably under physician supervision, nearly half of the states now allow NPs to practice autonomously.

Mr. Horton cautioned that APCs can’t fully substitute for physicians and require the same support staff that doctors do if they have their own panels. In primary care groups, Mr. Holder noted, the average salary of an APC “is continuing to rise, and there isn’t a huge difference between what they and doctors make.”

Nevertheless, he added, “there are more NPs and PAs being added to the marketplace all the time, whereas [physician] residency programs aren’t really growing. There are caps on the number of residency positions, and some physicians are retiring. So the clock is ticking to the point where someday doctors will be grossly outnumbered by NPs.”

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

To the Editor:

One of the more common tick-borne infections seen in travelers returning from sub-Saharan Africa is caused by Rickettsia africae, which is the etiologic agent of African tick-bite fever (ATBF), the most common tick-borne bacterial zoonosis.¹ There are 2 known tick vectors of disease: Amblyomma variegatum, found in sub-Saharan Africa and the West Indies, and Amblyomma hebraeum, found specifically in southern Africa.^2,3

Unlike other disease-carrying ticks that passively wait on vegetation to be picked up by a host, A hebraeum uniquely attract other nearby ticks to the host. Studies have shown that male ticks feeding on a nonhuman host (usually cattle) can emit an aggression-attachment pheromone that attracts other ticks to the host. The presence of the pheromone allows unfed ticks to actively discriminate between hosts on which these parasites have fed successfully (ie, suitable hosts) and those on which they have not.⁴

The aggressive hunting nature of A hebraeum explains the clinical presentation of multiple eschars and why large groups of exposed travelers—such as soldiers, leisure safari tourists, game hunters, and foreign-aid workers—are affected.²

Another southern African spotted fever group, Rickettsia conorii is the causative agent of Mediterranean spotted fever (MSF). Ticks carrying R conorii exhibit a much less aggressive hunting stylethan A hebraeum; consequently, infected patients present with a single eschar site.⁵

Rickettsia africae is estimated to have very high prevalence (95.2%) in Amblyomma ticks and a fairly high prevalence (approximately 4.0% to 8.6%) in travelers coming from rural southern Africa,^6,7 with an incubation period of 5 to 10 days after inoculation by an infected tick.⁸ Signs include fever, a generalized maculopapular or papulovesicular rash, and regional lymphadenopathy; symptoms include fatigue, headache, and myalgia.

The inoculation eschar—single or multiple—commonly presents on the legs and is accompanied by tender lymphadenopathy of draining nodes^1,8 More severe findings, such as myocarditis and subacute neuropathy, have been reported in elderly patients.⁹

A 77-year-old man presented with a pruritic maculopapular and papulovesicular rash distributed over the upper and lower extremities of 3 weeks’ duration. The patient reported having been on a 12-day mission trip to Limpopo, South Africa, where he was constructing and installing safe toilets to replace dangerous toilet pits. He believed he had been bitten by 2 ticks, after which he noted a dark purple and black patch on the left lower leg by the third day of the trip. He developed a sudden persistent pruritic rash, first on the lower extremities and then spreading to the upper extremities. The patient was seen by an American physician in South Africa who gave him a 7-day course of oral doxycycline monohydrate 100 mg twice daily. He then returned to the United States.

Sixteen days after being bitten by the ticks, the patient was examined in our dermatology office. Physical examination revealed an erythematous plaque with a central eschar over the medial aspect of the left leg (Figure 1) and multiple 3- to 6-mm, erythematous, dome-shaped papules scattered over the dorsal aspects of the feet and ankles (Figure 2). The examination was otherwise normal. Blood was drawn the same day for laboratory analysis; no abnormalities of platelets, red blood cells, or white blood cells were found. Results of a chemistry panel and liver enzyme tests were within reference range.

Skin biopsies were taken to elucidate the underlying pathology. Although an arthropod assault was suspected, there also was concern for deep vessel vasculitis because of the presence of considerable petechiae and purpura (Figure 3). Histologically, leukocytoclasia was seen in deep dermal blood vessels. A mild eosinophilic spongiosis with a mixed dermal infiltrate was identified—strengthening our suspicion of an arthropod assault. Bacterial cultures for aerobes and anaerobes using material taken from the right shin showed no growth.

Ten days after the initial biopsies, serum specimens were drawn and swabs of eschar were collected and sent to the Centers for Disease Control and Prevention for further testing. Serum was tested by immunofluorescence assay (IFA) for spotted fever group IgG to detect Rocky Mountain spotted fever and ATBF antibodies; both tests were negative. Swab material from eschar was tested again by IFA for spotted fever group IgG (Rocky Mountain spotted fever) and antibodies to ATBF and with bacterial culture isolation and nucleic acid amplification; the culture and amplification came back positive for R africae.

Because the specialized tests confirmed infection with R africae, the patient was given triamcinolone cream 0.1% to apply twice daily to the pruritic lesions for as long as 4 weeks; an additional 14-day course of oral doxycycline monohydrate (100 mg twice daily) was given. At follow-up, the lesions had fully resolved without evident scarring.

Various diagnostic techniques can detect R africae. Bacterial culture and the polymerase chain reaction are specific and therefore diagnostic. In addition, the diagnosis of rickettsiosis can be made with serology testing, in which disease-specific antibodies are detected by indirect IFA using disease-specific antigens.

Antigens from R rickettsii (the agent of Rocky Mountain spotted fever), R conorii (Mediterranean spotted fever), and R africae (ATBF) are commercially available for making the diagnosis of rickettsiosis. However, antigens from R conorii exhibit cross-reactivity with R africae, which can confound the diagnosis.^1,10 Serologic IFA tests have been shown to be less sensitive, especially when performed after antibacterial treatment has started.

In a study, 17 of 65 (26%) ATBF-confirmed patients were seronegative (acute and convalescent-phase sera) against R africae; 14 had received doxycycline during the first week of clinical signs. The current hypothesis is that R africae is highly sensitive to doxycycline and that early exposure to the drug prevented development of detectable titers of reactive antibodies, thus producing a negative serology test.¹¹

Furthermore, it has been shown that seroconversion of IgG and IgM antibodies in R africae–infected sera is delayed compared to what is observed with R conorii–infected sera. Typically, seroconversion of R conorii–infected sera can be detected within 2 weeks; seroconversion in R africae–infected sera can take 4 weeks or longer.¹¹

Our patient had a confirmed case of ATBF secondary to R africae infection, which was evident from tissue culture isolation and polymerase chain reaction analysis of swab material obtained from eschar sites, both of which yielded a positive result for R africae. The traveler’s negative serologic status might be due to his early exposure to doxycycline or to the 4-week delay in R africae seroconversion; his serum was collected only 3 weeks after the tick bites.

Clinical signs also aid in making the diagnosis of ATBF and distinguishing R conorii from R africae infection. Because of the aggressive hunting nature of the tick carrying R africae, they are associated with multiple eschars and tend to affect groups of multiple people, especially in rural areas.^4,5 In contrast, ticks carrying R conorii yield a single eschar due to their passive style of infecting a host and because they favor a single host within urban areas.⁵ Both infections exhibit a maculopapular or papulovesicular rash and are accompanied by fatigue, headache, and myalgia, though ATBF tends to present with a milder rash than MSF.

Infection with either R conorii or R africae responds to tetracyclines, quinolones, and macrolides.^10,12

African tick-bite fever is becoming more common, which should encourage clinicians to become familiar with the disease. Less than 2 decades ago, ATBF virtually was unknown outside of Zimbabwe, Botswana, Tanzania, Zambia, and Kenya, where it is endemic. However, after the abolition of apartheid in the 1990s, international tourism in southern Africa increased 6-fold.¹³ African tick-bite fever is now one of the most common rickettsial infections in Africa.⁷ In addition to diagnosing ATBF and managing infected patients, clinicians can help prevent ATBF in individuals who travel to endemic areas by recommending commercial topical insect repellents containing at least 19.5% N,N-diethyl-meta-toluamide (DEET).¹⁴

To the Editor:

One of the more common tick-borne infections seen in travelers returning from sub-Saharan Africa is caused by Rickettsia africae, which is the etiologic agent of African tick-bite fever (ATBF), the most common tick-borne bacterial zoonosis.¹ There are 2 known tick vectors of disease: Amblyomma variegatum, found in sub-Saharan Africa and the West Indies, and Amblyomma hebraeum, found specifically in southern Africa.^2,3

Unlike other disease-carrying ticks that passively wait on vegetation to be picked up by a host, A hebraeum uniquely attract other nearby ticks to the host. Studies have shown that male ticks feeding on a nonhuman host (usually cattle) can emit an aggression-attachment pheromone that attracts other ticks to the host. The presence of the pheromone allows unfed ticks to actively discriminate between hosts on which these parasites have fed successfully (ie, suitable hosts) and those on which they have not.⁴

The aggressive hunting nature of A hebraeum explains the clinical presentation of multiple eschars and why large groups of exposed travelers—such as soldiers, leisure safari tourists, game hunters, and foreign-aid workers—are affected.²

Another southern African spotted fever group, Rickettsia conorii is the causative agent of Mediterranean spotted fever (MSF). Ticks carrying R conorii exhibit a much less aggressive hunting stylethan A hebraeum; consequently, infected patients present with a single eschar site.⁵

Rickettsia africae is estimated to have very high prevalence (95.2%) in Amblyomma ticks and a fairly high prevalence (approximately 4.0% to 8.6%) in travelers coming from rural southern Africa,^6,7 with an incubation period of 5 to 10 days after inoculation by an infected tick.⁸ Signs include fever, a generalized maculopapular or papulovesicular rash, and regional lymphadenopathy; symptoms include fatigue, headache, and myalgia.

The inoculation eschar—single or multiple—commonly presents on the legs and is accompanied by tender lymphadenopathy of draining nodes^1,8 More severe findings, such as myocarditis and subacute neuropathy, have been reported in elderly patients.⁹

A 77-year-old man presented with a pruritic maculopapular and papulovesicular rash distributed over the upper and lower extremities of 3 weeks’ duration. The patient reported having been on a 12-day mission trip to Limpopo, South Africa, where he was constructing and installing safe toilets to replace dangerous toilet pits. He believed he had been bitten by 2 ticks, after which he noted a dark purple and black patch on the left lower leg by the third day of the trip. He developed a sudden persistent pruritic rash, first on the lower extremities and then spreading to the upper extremities. The patient was seen by an American physician in South Africa who gave him a 7-day course of oral doxycycline monohydrate 100 mg twice daily. He then returned to the United States.

Sixteen days after being bitten by the ticks, the patient was examined in our dermatology office. Physical examination revealed an erythematous plaque with a central eschar over the medial aspect of the left leg (Figure 1) and multiple 3- to 6-mm, erythematous, dome-shaped papules scattered over the dorsal aspects of the feet and ankles (Figure 2). The examination was otherwise normal. Blood was drawn the same day for laboratory analysis; no abnormalities of platelets, red blood cells, or white blood cells were found. Results of a chemistry panel and liver enzyme tests were within reference range.

Skin biopsies were taken to elucidate the underlying pathology. Although an arthropod assault was suspected, there also was concern for deep vessel vasculitis because of the presence of considerable petechiae and purpura (Figure 3). Histologically, leukocytoclasia was seen in deep dermal blood vessels. A mild eosinophilic spongiosis with a mixed dermal infiltrate was identified—strengthening our suspicion of an arthropod assault. Bacterial cultures for aerobes and anaerobes using material taken from the right shin showed no growth.

Ten days after the initial biopsies, serum specimens were drawn and swabs of eschar were collected and sent to the Centers for Disease Control and Prevention for further testing. Serum was tested by immunofluorescence assay (IFA) for spotted fever group IgG to detect Rocky Mountain spotted fever and ATBF antibodies; both tests were negative. Swab material from eschar was tested again by IFA for spotted fever group IgG (Rocky Mountain spotted fever) and antibodies to ATBF and with bacterial culture isolation and nucleic acid amplification; the culture and amplification came back positive for R africae.

Because the specialized tests confirmed infection with R africae, the patient was given triamcinolone cream 0.1% to apply twice daily to the pruritic lesions for as long as 4 weeks; an additional 14-day course of oral doxycycline monohydrate (100 mg twice daily) was given. At follow-up, the lesions had fully resolved without evident scarring.

Various diagnostic techniques can detect R africae. Bacterial culture and the polymerase chain reaction are specific and therefore diagnostic. In addition, the diagnosis of rickettsiosis can be made with serology testing, in which disease-specific antibodies are detected by indirect IFA using disease-specific antigens.

Antigens from R rickettsii (the agent of Rocky Mountain spotted fever), R conorii (Mediterranean spotted fever), and R africae (ATBF) are commercially available for making the diagnosis of rickettsiosis. However, antigens from R conorii exhibit cross-reactivity with R africae, which can confound the diagnosis.^1,10 Serologic IFA tests have been shown to be less sensitive, especially when performed after antibacterial treatment has started.

In a study, 17 of 65 (26%) ATBF-confirmed patients were seronegative (acute and convalescent-phase sera) against R africae; 14 had received doxycycline during the first week of clinical signs. The current hypothesis is that R africae is highly sensitive to doxycycline and that early exposure to the drug prevented development of detectable titers of reactive antibodies, thus producing a negative serology test.¹¹

Furthermore, it has been shown that seroconversion of IgG and IgM antibodies in R africae–infected sera is delayed compared to what is observed with R conorii–infected sera. Typically, seroconversion of R conorii–infected sera can be detected within 2 weeks; seroconversion in R africae–infected sera can take 4 weeks or longer.¹¹

Our patient had a confirmed case of ATBF secondary to R africae infection, which was evident from tissue culture isolation and polymerase chain reaction analysis of swab material obtained from eschar sites, both of which yielded a positive result for R africae. The traveler’s negative serologic status might be due to his early exposure to doxycycline or to the 4-week delay in R africae seroconversion; his serum was collected only 3 weeks after the tick bites.

Clinical signs also aid in making the diagnosis of ATBF and distinguishing R conorii from R africae infection. Because of the aggressive hunting nature of the tick carrying R africae, they are associated with multiple eschars and tend to affect groups of multiple people, especially in rural areas.^4,5 In contrast, ticks carrying R conorii yield a single eschar due to their passive style of infecting a host and because they favor a single host within urban areas.⁵ Both infections exhibit a maculopapular or papulovesicular rash and are accompanied by fatigue, headache, and myalgia, though ATBF tends to present with a milder rash than MSF.

Infection with either R conorii or R africae responds to tetracyclines, quinolones, and macrolides.^10,12

African tick-bite fever is becoming more common, which should encourage clinicians to become familiar with the disease. Less than 2 decades ago, ATBF virtually was unknown outside of Zimbabwe, Botswana, Tanzania, Zambia, and Kenya, where it is endemic. However, after the abolition of apartheid in the 1990s, international tourism in southern Africa increased 6-fold.¹³ African tick-bite fever is now one of the most common rickettsial infections in Africa.⁷ In addition to diagnosing ATBF and managing infected patients, clinicians can help prevent ATBF in individuals who travel to endemic areas by recommending commercial topical insect repellents containing at least 19.5% N,N-diethyl-meta-toluamide (DEET).¹⁴

To the Editor:

One of the more common tick-borne infections seen in travelers returning from sub-Saharan Africa is caused by Rickettsia africae, which is the etiologic agent of African tick-bite fever (ATBF), the most common tick-borne bacterial zoonosis.¹ There are 2 known tick vectors of disease: Amblyomma variegatum, found in sub-Saharan Africa and the West Indies, and Amblyomma hebraeum, found specifically in southern Africa.^2,3

Unlike other disease-carrying ticks that passively wait on vegetation to be picked up by a host, A hebraeum uniquely attract other nearby ticks to the host. Studies have shown that male ticks feeding on a nonhuman host (usually cattle) can emit an aggression-attachment pheromone that attracts other ticks to the host. The presence of the pheromone allows unfed ticks to actively discriminate between hosts on which these parasites have fed successfully (ie, suitable hosts) and those on which they have not.⁴

The aggressive hunting nature of A hebraeum explains the clinical presentation of multiple eschars and why large groups of exposed travelers—such as soldiers, leisure safari tourists, game hunters, and foreign-aid workers—are affected.²

Another southern African spotted fever group, Rickettsia conorii is the causative agent of Mediterranean spotted fever (MSF). Ticks carrying R conorii exhibit a much less aggressive hunting stylethan A hebraeum; consequently, infected patients present with a single eschar site.⁵

Rickettsia africae is estimated to have very high prevalence (95.2%) in Amblyomma ticks and a fairly high prevalence (approximately 4.0% to 8.6%) in travelers coming from rural southern Africa,^6,7 with an incubation period of 5 to 10 days after inoculation by an infected tick.⁸ Signs include fever, a generalized maculopapular or papulovesicular rash, and regional lymphadenopathy; symptoms include fatigue, headache, and myalgia.

The inoculation eschar—single or multiple—commonly presents on the legs and is accompanied by tender lymphadenopathy of draining nodes^1,8 More severe findings, such as myocarditis and subacute neuropathy, have been reported in elderly patients.⁹

A 77-year-old man presented with a pruritic maculopapular and papulovesicular rash distributed over the upper and lower extremities of 3 weeks’ duration. The patient reported having been on a 12-day mission trip to Limpopo, South Africa, where he was constructing and installing safe toilets to replace dangerous toilet pits. He believed he had been bitten by 2 ticks, after which he noted a dark purple and black patch on the left lower leg by the third day of the trip. He developed a sudden persistent pruritic rash, first on the lower extremities and then spreading to the upper extremities. The patient was seen by an American physician in South Africa who gave him a 7-day course of oral doxycycline monohydrate 100 mg twice daily. He then returned to the United States.

Sixteen days after being bitten by the ticks, the patient was examined in our dermatology office. Physical examination revealed an erythematous plaque with a central eschar over the medial aspect of the left leg (Figure 1) and multiple 3- to 6-mm, erythematous, dome-shaped papules scattered over the dorsal aspects of the feet and ankles (Figure 2). The examination was otherwise normal. Blood was drawn the same day for laboratory analysis; no abnormalities of platelets, red blood cells, or white blood cells were found. Results of a chemistry panel and liver enzyme tests were within reference range.

Skin biopsies were taken to elucidate the underlying pathology. Although an arthropod assault was suspected, there also was concern for deep vessel vasculitis because of the presence of considerable petechiae and purpura (Figure 3). Histologically, leukocytoclasia was seen in deep dermal blood vessels. A mild eosinophilic spongiosis with a mixed dermal infiltrate was identified—strengthening our suspicion of an arthropod assault. Bacterial cultures for aerobes and anaerobes using material taken from the right shin showed no growth.

Ten days after the initial biopsies, serum specimens were drawn and swabs of eschar were collected and sent to the Centers for Disease Control and Prevention for further testing. Serum was tested by immunofluorescence assay (IFA) for spotted fever group IgG to detect Rocky Mountain spotted fever and ATBF antibodies; both tests were negative. Swab material from eschar was tested again by IFA for spotted fever group IgG (Rocky Mountain spotted fever) and antibodies to ATBF and with bacterial culture isolation and nucleic acid amplification; the culture and amplification came back positive for R africae.

Because the specialized tests confirmed infection with R africae, the patient was given triamcinolone cream 0.1% to apply twice daily to the pruritic lesions for as long as 4 weeks; an additional 14-day course of oral doxycycline monohydrate (100 mg twice daily) was given. At follow-up, the lesions had fully resolved without evident scarring.

Various diagnostic techniques can detect R africae. Bacterial culture and the polymerase chain reaction are specific and therefore diagnostic. In addition, the diagnosis of rickettsiosis can be made with serology testing, in which disease-specific antibodies are detected by indirect IFA using disease-specific antigens.

Antigens from R rickettsii (the agent of Rocky Mountain spotted fever), R conorii (Mediterranean spotted fever), and R africae (ATBF) are commercially available for making the diagnosis of rickettsiosis. However, antigens from R conorii exhibit cross-reactivity with R africae, which can confound the diagnosis.^1,10 Serologic IFA tests have been shown to be less sensitive, especially when performed after antibacterial treatment has started.

In a study, 17 of 65 (26%) ATBF-confirmed patients were seronegative (acute and convalescent-phase sera) against R africae; 14 had received doxycycline during the first week of clinical signs. The current hypothesis is that R africae is highly sensitive to doxycycline and that early exposure to the drug prevented development of detectable titers of reactive antibodies, thus producing a negative serology test.¹¹

Furthermore, it has been shown that seroconversion of IgG and IgM antibodies in R africae–infected sera is delayed compared to what is observed with R conorii–infected sera. Typically, seroconversion of R conorii–infected sera can be detected within 2 weeks; seroconversion in R africae–infected sera can take 4 weeks or longer.¹¹

Our patient had a confirmed case of ATBF secondary to R africae infection, which was evident from tissue culture isolation and polymerase chain reaction analysis of swab material obtained from eschar sites, both of which yielded a positive result for R africae. The traveler’s negative serologic status might be due to his early exposure to doxycycline or to the 4-week delay in R africae seroconversion; his serum was collected only 3 weeks after the tick bites.

Clinical signs also aid in making the diagnosis of ATBF and distinguishing R conorii from R africae infection. Because of the aggressive hunting nature of the tick carrying R africae, they are associated with multiple eschars and tend to affect groups of multiple people, especially in rural areas.^4,5 In contrast, ticks carrying R conorii yield a single eschar due to their passive style of infecting a host and because they favor a single host within urban areas.⁵ Both infections exhibit a maculopapular or papulovesicular rash and are accompanied by fatigue, headache, and myalgia, though ATBF tends to present with a milder rash than MSF.

Infection with either R conorii or R africae responds to tetracyclines, quinolones, and macrolides.^10,12

African tick-bite fever is becoming more common, which should encourage clinicians to become familiar with the disease. Less than 2 decades ago, ATBF virtually was unknown outside of Zimbabwe, Botswana, Tanzania, Zambia, and Kenya, where it is endemic. However, after the abolition of apartheid in the 1990s, international tourism in southern Africa increased 6-fold.¹³ African tick-bite fever is now one of the most common rickettsial infections in Africa.⁷ In addition to diagnosing ATBF and managing infected patients, clinicians can help prevent ATBF in individuals who travel to endemic areas by recommending commercial topical insect repellents containing at least 19.5% N,N-diethyl-meta-toluamide (DEET).¹⁴

Doctors and their family members are less likely than other people to follow guidelines for taking medication, according to a study by economic professors from the Massachusetts Institute of Technology, Cambridge; Stanford (Calif.) University; and the George Gund Professor of Economics and Business Administration at Harvard University, Boston.

What to know

• Doctors’ medical knowledge may influence them and their families to often ignore medical advice while the rest of the population adheres to general medication guidelines.
• Of the 63 guidelines used in the study, doctors and their families followed the standards less than a third of the time.
• The difference in adherence to guidelines between experts and nonexperts is largest with respect to antibiotics, in which doctors and their families are 5.2 percentage points less in compliance than everyone else.
• Doctors could be more likely to prescribe broader-spectrum antibiotics for themselves and their families, whereas most patients receive more narrow-spectrum antibiotics.
• Many members of the general public don’t understand medical guidelines, finding them too complex to follow, and many people don’t trust their doctors.

This is a summary of the article, “A Taste of Their Own Medicine: Guideline Adherence and Access to Expertise,” published in the American Economic Review: Insights on December 13, 2022. The full article can be found on aeaweb.org.

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

Doctors and their family members are less likely than other people to follow guidelines for taking medication, according to a study by economic professors from the Massachusetts Institute of Technology, Cambridge; Stanford (Calif.) University; and the George Gund Professor of Economics and Business Administration at Harvard University, Boston.

What to know

• Doctors’ medical knowledge may influence them and their families to often ignore medical advice while the rest of the population adheres to general medication guidelines.
• Of the 63 guidelines used in the study, doctors and their families followed the standards less than a third of the time.
• The difference in adherence to guidelines between experts and nonexperts is largest with respect to antibiotics, in which doctors and their families are 5.2 percentage points less in compliance than everyone else.
• Doctors could be more likely to prescribe broader-spectrum antibiotics for themselves and their families, whereas most patients receive more narrow-spectrum antibiotics.
• Many members of the general public don’t understand medical guidelines, finding them too complex to follow, and many people don’t trust their doctors.

This is a summary of the article, “A Taste of Their Own Medicine: Guideline Adherence and Access to Expertise,” published in the American Economic Review: Insights on December 13, 2022. The full article can be found on aeaweb.org.

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

Doctors and their family members are less likely than other people to follow guidelines for taking medication, according to a study by economic professors from the Massachusetts Institute of Technology, Cambridge; Stanford (Calif.) University; and the George Gund Professor of Economics and Business Administration at Harvard University, Boston.

What to know

• Doctors’ medical knowledge may influence them and their families to often ignore medical advice while the rest of the population adheres to general medication guidelines.
• Of the 63 guidelines used in the study, doctors and their families followed the standards less than a third of the time.
• The difference in adherence to guidelines between experts and nonexperts is largest with respect to antibiotics, in which doctors and their families are 5.2 percentage points less in compliance than everyone else.
• Doctors could be more likely to prescribe broader-spectrum antibiotics for themselves and their families, whereas most patients receive more narrow-spectrum antibiotics.
• Many members of the general public don’t understand medical guidelines, finding them too complex to follow, and many people don’t trust their doctors.

This is a summary of the article, “A Taste of Their Own Medicine: Guideline Adherence and Access to Expertise,” published in the American Economic Review: Insights on December 13, 2022. The full article can be found on aeaweb.org.

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

A new study published in JAMA suggests that doctors with one paid malpractice claim are almost four times more likely than their peers to have additional paid claims in the future, regardless of specialty or whether a state publicly discloses paid claims.

In this retrospective case-control study, law and public health researchers from Georgetown University, the National Opinion Research Center, the University of Colorado, and Northwestern University analyzed paid malpractice claims for all licensed U.S. physicians.

The findings suggest that a single malpractice claim may not be a random stroke of bad luck but instead holds some predictive power into the risk for future paid claims.

“A four times increase in risk is huge, particularly since we observe a similar increase in both high-risk and lower-risk specialties,” David Hyman, JD, MD, professor of health law and policy at Georgetown University, Washington, and lead researcher on the study, told this news organization. “There are surely some false positives, but there must be lots of actual negligence too, or we would not see these results.”

For the 881,876 physicians analyzed, researchers looked at malpractice claims paid during two 5-year periods: 2009-2013 and 2014-2018. Nearly 96% of physicians had no paid malpractice claims between 2009 and 2013; 3% had one, and less than 1% had multiple claims. The proportion of physicians with paid claims between 2014 and 2018 was similar.

Compared with physicians with no 2009-2013 claims, a physician with just one paid claim in that time period had a 3.7 times higher risk for a future paid claim. Physicians with two paid claims were nearly 7 times more likely to have a future paid claim, and those with three or more paid claims were more than 11 times more likely to have one.

Approximately 3% of physicians with no paid claims between 2009 and 2013 had a future paid claim, growing to 12.4% of those with one paid claim during that time.

The study’s findings may have implications for medical licensing boards and hospitals granting staff privileges.

“After some number of paid claims, there should be an official response” from these entities, such as a hands-on assessment of technical skills or assignment of a peer mentor, said Dr. Hyman, who is also coauthor of a book titled “Medical Malpractice Litigation: How It Works, Why Tort Reform Hasn’t Helped.” A graduated set of interventions, whether voluntary or mandatory, can reduce future claim risk and patient harm, Dr. Hyman added.

Interventions may include error avoidance and post-error communication training, counseling to improve bedside skills, and encouragement to move into nonclinical practice. Either way, Dr. Hyman says a nuanced intervention strategy would be a welcome shift away from the current “all or nothing approach” that too often ends in the revocation of a physician’s medical license.

Although there are strategies to proactively identify physicians with excess risk for malpractice claims and implement preventive measures – like Vanderbilt University’s Patient Advocacy Reporting System, for example – most hospitals and physician groups fail to initiate even informal interventions after a malpractice settlement or verdict, which is a missed opportunity, Dr. Hyman said.

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

A new study published in JAMA suggests that doctors with one paid malpractice claim are almost four times more likely than their peers to have additional paid claims in the future, regardless of specialty or whether a state publicly discloses paid claims.

In this retrospective case-control study, law and public health researchers from Georgetown University, the National Opinion Research Center, the University of Colorado, and Northwestern University analyzed paid malpractice claims for all licensed U.S. physicians.

The findings suggest that a single malpractice claim may not be a random stroke of bad luck but instead holds some predictive power into the risk for future paid claims.

“A four times increase in risk is huge, particularly since we observe a similar increase in both high-risk and lower-risk specialties,” David Hyman, JD, MD, professor of health law and policy at Georgetown University, Washington, and lead researcher on the study, told this news organization. “There are surely some false positives, but there must be lots of actual negligence too, or we would not see these results.”

For the 881,876 physicians analyzed, researchers looked at malpractice claims paid during two 5-year periods: 2009-2013 and 2014-2018. Nearly 96% of physicians had no paid malpractice claims between 2009 and 2013; 3% had one, and less than 1% had multiple claims. The proportion of physicians with paid claims between 2014 and 2018 was similar.

Compared with physicians with no 2009-2013 claims, a physician with just one paid claim in that time period had a 3.7 times higher risk for a future paid claim. Physicians with two paid claims were nearly 7 times more likely to have a future paid claim, and those with three or more paid claims were more than 11 times more likely to have one.

Approximately 3% of physicians with no paid claims between 2009 and 2013 had a future paid claim, growing to 12.4% of those with one paid claim during that time.

The study’s findings may have implications for medical licensing boards and hospitals granting staff privileges.

“After some number of paid claims, there should be an official response” from these entities, such as a hands-on assessment of technical skills or assignment of a peer mentor, said Dr. Hyman, who is also coauthor of a book titled “Medical Malpractice Litigation: How It Works, Why Tort Reform Hasn’t Helped.” A graduated set of interventions, whether voluntary or mandatory, can reduce future claim risk and patient harm, Dr. Hyman added.

Interventions may include error avoidance and post-error communication training, counseling to improve bedside skills, and encouragement to move into nonclinical practice. Either way, Dr. Hyman says a nuanced intervention strategy would be a welcome shift away from the current “all or nothing approach” that too often ends in the revocation of a physician’s medical license.

Although there are strategies to proactively identify physicians with excess risk for malpractice claims and implement preventive measures – like Vanderbilt University’s Patient Advocacy Reporting System, for example – most hospitals and physician groups fail to initiate even informal interventions after a malpractice settlement or verdict, which is a missed opportunity, Dr. Hyman said.

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

A new study published in JAMA suggests that doctors with one paid malpractice claim are almost four times more likely than their peers to have additional paid claims in the future, regardless of specialty or whether a state publicly discloses paid claims.

In this retrospective case-control study, law and public health researchers from Georgetown University, the National Opinion Research Center, the University of Colorado, and Northwestern University analyzed paid malpractice claims for all licensed U.S. physicians.

The findings suggest that a single malpractice claim may not be a random stroke of bad luck but instead holds some predictive power into the risk for future paid claims.

“A four times increase in risk is huge, particularly since we observe a similar increase in both high-risk and lower-risk specialties,” David Hyman, JD, MD, professor of health law and policy at Georgetown University, Washington, and lead researcher on the study, told this news organization. “There are surely some false positives, but there must be lots of actual negligence too, or we would not see these results.”

For the 881,876 physicians analyzed, researchers looked at malpractice claims paid during two 5-year periods: 2009-2013 and 2014-2018. Nearly 96% of physicians had no paid malpractice claims between 2009 and 2013; 3% had one, and less than 1% had multiple claims. The proportion of physicians with paid claims between 2014 and 2018 was similar.

Compared with physicians with no 2009-2013 claims, a physician with just one paid claim in that time period had a 3.7 times higher risk for a future paid claim. Physicians with two paid claims were nearly 7 times more likely to have a future paid claim, and those with three or more paid claims were more than 11 times more likely to have one.

Approximately 3% of physicians with no paid claims between 2009 and 2013 had a future paid claim, growing to 12.4% of those with one paid claim during that time.

The study’s findings may have implications for medical licensing boards and hospitals granting staff privileges.

“After some number of paid claims, there should be an official response” from these entities, such as a hands-on assessment of technical skills or assignment of a peer mentor, said Dr. Hyman, who is also coauthor of a book titled “Medical Malpractice Litigation: How It Works, Why Tort Reform Hasn’t Helped.” A graduated set of interventions, whether voluntary or mandatory, can reduce future claim risk and patient harm, Dr. Hyman added.

Interventions may include error avoidance and post-error communication training, counseling to improve bedside skills, and encouragement to move into nonclinical practice. Either way, Dr. Hyman says a nuanced intervention strategy would be a welcome shift away from the current “all or nothing approach” that too often ends in the revocation of a physician’s medical license.

Although there are strategies to proactively identify physicians with excess risk for malpractice claims and implement preventive measures – like Vanderbilt University’s Patient Advocacy Reporting System, for example – most hospitals and physician groups fail to initiate even informal interventions after a malpractice settlement or verdict, which is a missed opportunity, Dr. Hyman said.

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

Adults with the inflammatory autoimmune myopathy dermatomyositis are at increased for concurrent cancers, but new research suggests that certain autoantibodies in patients with a specific dermatomyositis subtype may actually protect against cancer.

A study of cohorts of patients with dermatomyositis, other rheumatic diseases, and those without disease showed that among patients with dermatomyositis positive for antitranscriptional intermediary factor 1 (anti–TIF1-gamma) autoantibodies – a disease subtype associated with increased cancer risk – the presence of autoantibodies directed against cell division cycle and apoptosis regulator 1 (CCAR1) was associated with reduced cancer risk “to a level comparable to that seen in the general population,” Christopher A. Mecoli, MD, MHS, of Johns Hopkins University, Baltimore, and colleagues reported.

“Our prior data suggest that there are autoantigens that, when targeted simultaneously with CCAR1, provide additional cancer protection. Although these autoantigens are less frequently targeted, it is likely that additional, more prevalent ‘autoantigen hubs’ remain undiscovered,” they wrote in Arthritis & Rheumatology.

Identification of other autoantibodies both in the anti–TIF1-gamma–positive and other dermatomyositis subgroups may help with cancer risk stratification in patients with the disease and may ultimately improve cancer screening for adults with dermatomyositis, the investigators said.
 

Toward precision medicine

“I think this is a step toward precision medicine in patients with rheumatic disease, specifically myositis,” Dr. Mecoli said in an interview.

The study supports earlier work showing that dermatomyositis and related myopathies are heterogeneous, he said, noting that, “if you put 10 myositis patients in the same room, you wouldn’t get that they all have the same disease because they can look so different from one another.”

The association of dermatomyositis with concurrent cancers has been known for decades, but in recent years his team and other investigators have noted that the association holds true for only some patients with dermatomyositis, most notably those patients positive for anti–TIF1-gamma autoantibodies.

“And then, of course, once you really start studying just one gamma-positive dermatomyositis patient, you realize that even among that group it is heterogeneous in terms of their cancer risk, and that was the main focus of this study: to reconcile this clinical observation that I had a lot of patients with TIF1-gamma dermatomyositis who never get diagnosed with cancer,” Dr. Mecoli said.

Study details

Dr. Dr. Mecoli and colleagues previously reported that immune responses to CCAR1 and other autoantigens seen in patients with dermatomyositis were associated with lower probability of cancer occurrence.

In the current study, they focused on the disease specificity, clinical phenotype, and cancer risk for patients with dermatomyositis and anti-CCAR1 autoantibodies.

They looked at all patients aged 18 or older with a probable or definite finding of dermatomyositis, according to 2017 American College of Rheumatology/European Alliance of Associations for Rheumatology Idiopathic Inflammatory Myopathy criteria, who were seen at Stanford (Calif.) University Medical Center from August 2004 to April 2020 (101 patients), or the Johns Hopkins Myositis Center (141 patients) from January 2007 to December 2020.

Controls included 44 patients evaluated at the Johns Hopkins Myositis Center with immune-mediated necrotizing myopathy, 186 patients with anti–TIF1-gamma–negative dermatomyositis (defined as an enzyme-linked immunosorbent assay readout of less than seven units) evaluated at either Stanford or Johns Hopkins, 44 patients with inclusion body myositis evaluated at Johns Hopkins, and 46 patients with systemic lupus erythematosus from the Hopkins Lupus Cohort. The investigators also assayed serum from 32 healthy individuals.

They found that patients with anti–TIF1-gamma–positive dermatomyositis were significantly more likely than those with anti–TIF1-gamma–negative dermatomyositis to have anti-CCAR1 autoantibodies (32% vs. 8%; P < .001). Additionally, they noted that the anti-CCAR1 autoantibodies were not seen in serum from healthy controls and were found at only very low frequencies among patients with other rheumatic diseases.

When they looked at the incidence of cancer from the time of dermatomyositis onset (defined as the first patient-reported symptoms of rash, weakness, myalgia, or dyspnea) they found that the standardized incidence ratio in anti–TIF1-gamma–positive patients in both the Stanford and Hopkins cohorts was higher than expected, with SIRs of 3.49 and 4.54, respectively (P < .001 for each comparison).

However, among those patients who were both anti–TIF1-gamma positive and anti-CCAR1 positive, the SIRs were 1.78 in the Stanford cohort and 1.61 in the Hopkins cohort, and neither SIR was significantly higher than that of the general population.
 

Risk prediction

Their findings suggest that autoantibody profiles might be used for cancer risk stratification in patients with anti–TIF1-gamma–positive dermatomyositis, Dr. Mecoli said.

“Are we overscreening? What is the cost in terms of patient anxiety, in terms of radiation, and in terms of false positive results?” he asked. “If I had a patient in front of me with anti–TIF1-gamma dermatomyositis, I would probably manage them differently if I knew that they were CCAR1 positive, because the presence of that additional autoantibody attenuates their cancer risk relative to the general population.”

In an editorial accompanying the study, Manabu Fujimoto, MD, of the department of dermatology at Osaka (Japan) University, commented that it “is of clinical importance in that combination of autoantibodies can predict cancer risk with more accuracy. At the same time, this study will give an insight into the pathomechanisms of how antitumor activity may shape autoimmunity in dermatomyositis.”

It will be “intriguing” to discover whether anti-CCAR1 autoantibodies act only against tumors or might also have an impact on dermatomyositis itself, Dr. Fujimoto said.

The research was supported by grants from the National Institutes of Health; Huayi and Siuling Zhang Discovery Fund; Peter Buck, MD; and the Donald B. and Dorothy L. Stabler Foundation. The authors and Dr. Fujimoto reported no relevant financial relationships.

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

Adults with the inflammatory autoimmune myopathy dermatomyositis are at increased for concurrent cancers, but new research suggests that certain autoantibodies in patients with a specific dermatomyositis subtype may actually protect against cancer.

A study of cohorts of patients with dermatomyositis, other rheumatic diseases, and those without disease showed that among patients with dermatomyositis positive for antitranscriptional intermediary factor 1 (anti–TIF1-gamma) autoantibodies – a disease subtype associated with increased cancer risk – the presence of autoantibodies directed against cell division cycle and apoptosis regulator 1 (CCAR1) was associated with reduced cancer risk “to a level comparable to that seen in the general population,” Christopher A. Mecoli, MD, MHS, of Johns Hopkins University, Baltimore, and colleagues reported.

“Our prior data suggest that there are autoantigens that, when targeted simultaneously with CCAR1, provide additional cancer protection. Although these autoantigens are less frequently targeted, it is likely that additional, more prevalent ‘autoantigen hubs’ remain undiscovered,” they wrote in Arthritis & Rheumatology.

Identification of other autoantibodies both in the anti–TIF1-gamma–positive and other dermatomyositis subgroups may help with cancer risk stratification in patients with the disease and may ultimately improve cancer screening for adults with dermatomyositis, the investigators said.
 

Toward precision medicine

“I think this is a step toward precision medicine in patients with rheumatic disease, specifically myositis,” Dr. Mecoli said in an interview.

The study supports earlier work showing that dermatomyositis and related myopathies are heterogeneous, he said, noting that, “if you put 10 myositis patients in the same room, you wouldn’t get that they all have the same disease because they can look so different from one another.”

The association of dermatomyositis with concurrent cancers has been known for decades, but in recent years his team and other investigators have noted that the association holds true for only some patients with dermatomyositis, most notably those patients positive for anti–TIF1-gamma autoantibodies.

“And then, of course, once you really start studying just one gamma-positive dermatomyositis patient, you realize that even among that group it is heterogeneous in terms of their cancer risk, and that was the main focus of this study: to reconcile this clinical observation that I had a lot of patients with TIF1-gamma dermatomyositis who never get diagnosed with cancer,” Dr. Mecoli said.

Study details

Dr. Dr. Mecoli and colleagues previously reported that immune responses to CCAR1 and other autoantigens seen in patients with dermatomyositis were associated with lower probability of cancer occurrence.

In the current study, they focused on the disease specificity, clinical phenotype, and cancer risk for patients with dermatomyositis and anti-CCAR1 autoantibodies.

They looked at all patients aged 18 or older with a probable or definite finding of dermatomyositis, according to 2017 American College of Rheumatology/European Alliance of Associations for Rheumatology Idiopathic Inflammatory Myopathy criteria, who were seen at Stanford (Calif.) University Medical Center from August 2004 to April 2020 (101 patients), or the Johns Hopkins Myositis Center (141 patients) from January 2007 to December 2020.

Controls included 44 patients evaluated at the Johns Hopkins Myositis Center with immune-mediated necrotizing myopathy, 186 patients with anti–TIF1-gamma–negative dermatomyositis (defined as an enzyme-linked immunosorbent assay readout of less than seven units) evaluated at either Stanford or Johns Hopkins, 44 patients with inclusion body myositis evaluated at Johns Hopkins, and 46 patients with systemic lupus erythematosus from the Hopkins Lupus Cohort. The investigators also assayed serum from 32 healthy individuals.

They found that patients with anti–TIF1-gamma–positive dermatomyositis were significantly more likely than those with anti–TIF1-gamma–negative dermatomyositis to have anti-CCAR1 autoantibodies (32% vs. 8%; P < .001). Additionally, they noted that the anti-CCAR1 autoantibodies were not seen in serum from healthy controls and were found at only very low frequencies among patients with other rheumatic diseases.

When they looked at the incidence of cancer from the time of dermatomyositis onset (defined as the first patient-reported symptoms of rash, weakness, myalgia, or dyspnea) they found that the standardized incidence ratio in anti–TIF1-gamma–positive patients in both the Stanford and Hopkins cohorts was higher than expected, with SIRs of 3.49 and 4.54, respectively (P < .001 for each comparison).

However, among those patients who were both anti–TIF1-gamma positive and anti-CCAR1 positive, the SIRs were 1.78 in the Stanford cohort and 1.61 in the Hopkins cohort, and neither SIR was significantly higher than that of the general population.
 

Risk prediction

Their findings suggest that autoantibody profiles might be used for cancer risk stratification in patients with anti–TIF1-gamma–positive dermatomyositis, Dr. Mecoli said.

“Are we overscreening? What is the cost in terms of patient anxiety, in terms of radiation, and in terms of false positive results?” he asked. “If I had a patient in front of me with anti–TIF1-gamma dermatomyositis, I would probably manage them differently if I knew that they were CCAR1 positive, because the presence of that additional autoantibody attenuates their cancer risk relative to the general population.”

In an editorial accompanying the study, Manabu Fujimoto, MD, of the department of dermatology at Osaka (Japan) University, commented that it “is of clinical importance in that combination of autoantibodies can predict cancer risk with more accuracy. At the same time, this study will give an insight into the pathomechanisms of how antitumor activity may shape autoimmunity in dermatomyositis.”

It will be “intriguing” to discover whether anti-CCAR1 autoantibodies act only against tumors or might also have an impact on dermatomyositis itself, Dr. Fujimoto said.

The research was supported by grants from the National Institutes of Health; Huayi and Siuling Zhang Discovery Fund; Peter Buck, MD; and the Donald B. and Dorothy L. Stabler Foundation. The authors and Dr. Fujimoto reported no relevant financial relationships.

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

Adults with the inflammatory autoimmune myopathy dermatomyositis are at increased for concurrent cancers, but new research suggests that certain autoantibodies in patients with a specific dermatomyositis subtype may actually protect against cancer.

A study of cohorts of patients with dermatomyositis, other rheumatic diseases, and those without disease showed that among patients with dermatomyositis positive for antitranscriptional intermediary factor 1 (anti–TIF1-gamma) autoantibodies – a disease subtype associated with increased cancer risk – the presence of autoantibodies directed against cell division cycle and apoptosis regulator 1 (CCAR1) was associated with reduced cancer risk “to a level comparable to that seen in the general population,” Christopher A. Mecoli, MD, MHS, of Johns Hopkins University, Baltimore, and colleagues reported.

“Our prior data suggest that there are autoantigens that, when targeted simultaneously with CCAR1, provide additional cancer protection. Although these autoantigens are less frequently targeted, it is likely that additional, more prevalent ‘autoantigen hubs’ remain undiscovered,” they wrote in Arthritis & Rheumatology.

Identification of other autoantibodies both in the anti–TIF1-gamma–positive and other dermatomyositis subgroups may help with cancer risk stratification in patients with the disease and may ultimately improve cancer screening for adults with dermatomyositis, the investigators said.
 

Toward precision medicine

“I think this is a step toward precision medicine in patients with rheumatic disease, specifically myositis,” Dr. Mecoli said in an interview.

The study supports earlier work showing that dermatomyositis and related myopathies are heterogeneous, he said, noting that, “if you put 10 myositis patients in the same room, you wouldn’t get that they all have the same disease because they can look so different from one another.”

The association of dermatomyositis with concurrent cancers has been known for decades, but in recent years his team and other investigators have noted that the association holds true for only some patients with dermatomyositis, most notably those patients positive for anti–TIF1-gamma autoantibodies.

“And then, of course, once you really start studying just one gamma-positive dermatomyositis patient, you realize that even among that group it is heterogeneous in terms of their cancer risk, and that was the main focus of this study: to reconcile this clinical observation that I had a lot of patients with TIF1-gamma dermatomyositis who never get diagnosed with cancer,” Dr. Mecoli said.

Study details

Dr. Dr. Mecoli and colleagues previously reported that immune responses to CCAR1 and other autoantigens seen in patients with dermatomyositis were associated with lower probability of cancer occurrence.

In the current study, they focused on the disease specificity, clinical phenotype, and cancer risk for patients with dermatomyositis and anti-CCAR1 autoantibodies.

They looked at all patients aged 18 or older with a probable or definite finding of dermatomyositis, according to 2017 American College of Rheumatology/European Alliance of Associations for Rheumatology Idiopathic Inflammatory Myopathy criteria, who were seen at Stanford (Calif.) University Medical Center from August 2004 to April 2020 (101 patients), or the Johns Hopkins Myositis Center (141 patients) from January 2007 to December 2020.

Controls included 44 patients evaluated at the Johns Hopkins Myositis Center with immune-mediated necrotizing myopathy, 186 patients with anti–TIF1-gamma–negative dermatomyositis (defined as an enzyme-linked immunosorbent assay readout of less than seven units) evaluated at either Stanford or Johns Hopkins, 44 patients with inclusion body myositis evaluated at Johns Hopkins, and 46 patients with systemic lupus erythematosus from the Hopkins Lupus Cohort. The investigators also assayed serum from 32 healthy individuals.

They found that patients with anti–TIF1-gamma–positive dermatomyositis were significantly more likely than those with anti–TIF1-gamma–negative dermatomyositis to have anti-CCAR1 autoantibodies (32% vs. 8%; P < .001). Additionally, they noted that the anti-CCAR1 autoantibodies were not seen in serum from healthy controls and were found at only very low frequencies among patients with other rheumatic diseases.

When they looked at the incidence of cancer from the time of dermatomyositis onset (defined as the first patient-reported symptoms of rash, weakness, myalgia, or dyspnea) they found that the standardized incidence ratio in anti–TIF1-gamma–positive patients in both the Stanford and Hopkins cohorts was higher than expected, with SIRs of 3.49 and 4.54, respectively (P < .001 for each comparison).

However, among those patients who were both anti–TIF1-gamma positive and anti-CCAR1 positive, the SIRs were 1.78 in the Stanford cohort and 1.61 in the Hopkins cohort, and neither SIR was significantly higher than that of the general population.
 

Risk prediction

Their findings suggest that autoantibody profiles might be used for cancer risk stratification in patients with anti–TIF1-gamma–positive dermatomyositis, Dr. Mecoli said.

“Are we overscreening? What is the cost in terms of patient anxiety, in terms of radiation, and in terms of false positive results?” he asked. “If I had a patient in front of me with anti–TIF1-gamma dermatomyositis, I would probably manage them differently if I knew that they were CCAR1 positive, because the presence of that additional autoantibody attenuates their cancer risk relative to the general population.”

In an editorial accompanying the study, Manabu Fujimoto, MD, of the department of dermatology at Osaka (Japan) University, commented that it “is of clinical importance in that combination of autoantibodies can predict cancer risk with more accuracy. At the same time, this study will give an insight into the pathomechanisms of how antitumor activity may shape autoimmunity in dermatomyositis.”

It will be “intriguing” to discover whether anti-CCAR1 autoantibodies act only against tumors or might also have an impact on dermatomyositis itself, Dr. Fujimoto said.

The research was supported by grants from the National Institutes of Health; Huayi and Siuling Zhang Discovery Fund; Peter Buck, MD; and the Donald B. and Dorothy L. Stabler Foundation. The authors and Dr. Fujimoto reported no relevant financial relationships.

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

HONOLULU – More often than not, patients with rosacea require a combination of treatments to optimize the management of the disease, according to Julie C. Harper, MD.

“We’ve been more comfortable with the idea of combination therapy for acne than we have been for rosacea,” Dr. Harper, who practices in Birmingham, Ala., said at the Hawaii Dermatology Seminar provided by MedscapeLIVE! “If patients are doing great on one treatment, then don’t change it. But if there’s room for improvement, think about combinations.”

National Rosacea Society

National Rosacea Society

Dr. Harper said that she has been especially surprised by the effectiveness of one of these options, microencapsulated benzoyl peroxide cream, 5% (Epsolay), which is approved by the Food and Drug Administration for treating inflammatory lesions of rosacea in adults. In two identical, phase 3 randomized clinical trials of patients with inflammatory rosacea lesions, those treated with microencapsulated benzoyl peroxide achieved a 68.8% reduction in inflammatory lesions at 12 weeks (including 42.5% at week 2), compared with 38%-46% of those on the vehicle, according to the April 2022 announcement of the approval from the manufacturers, Sol-Gel Technologies and Galderma.

Doug Brunk, MDedge News

“A common drug is playing a key role,” Dr. Harper said. “What’s the mechanism of action? I have no idea. I wonder if there may be a bacterial pathogen after all,” possibly Staphylococcus epidermidis, she added. However, she noted, “it does appear that benzoyl peroxide has an impact on Demodex, so maybe that’s the primary way it’s working.”

In her opinion, a key standout from the clinical trial data is the drug’s rapid onset of action, with a 42.5% reduction of lesions at week 2. “What makes this different is that the 5% microencapsulated benzoyl peroxide cream is wrapped up in a silica shell,” said Dr. Harper, a past president of the American Acne and Rosacea Society. “The silica shell kind of acts like a speed bump that slows the release of drug onto the skin. We think that’s what may be giving us this better tolerability.”

In an interview at the meeting, Linda Stein Gold, MD, director of clinical research and division head of dermatology at the Henry Ford Health System, Detroit, said that prior to the approval of Epsolay, benzoyl peroxide was never considered a first-line treatment for rosacea. “The problem is, the conventional formulation is irritating to the skin,” said Dr. Stein Gold, who was involved in clinical trials of Epsolay.

“The benzoyl peroxide encapsulated in the silica shell allows for a slow and steady delivery of medication to the skin in a very controlled manner. It is exceptionally good at getting rosacea under control. In the clinical trials, when we looked at the baseline irritation of the skin and followed those patients when they used the benzoyl 5% microencapsulated benzoyl peroxide cream, the irritation improved.”
 

‘STOP’ mnemonic

When treating her patients with rosacea, Dr. Harper incorporates the mnemonic “STOP” to these patient visits:

S: Identify signs and symptoms of rosacea.

T: Discuss triggers. “We cannot make this disease triggerless, so when you’re talking to your patients, you need to find out what’s triggering their rosacea,” she said.

O: Agree on a treatment outcome. “What is it that’s important to the patient?” she said. “They may tell you, ‘I want to be able to not be so red,’ or ‘I want to get rid of the bumps,’ or ‘I want my eyes to not feel so dry.’ ”

P: Develop a plan that helps achieve that desired outcome with patients.

Dr. Harper disclosed ties with Almirall, Cassiopeia, Cutera, Galderma, EPI, L’Oréal, Ortho Dermatologics, Sol Gel, Sun Pharmaceutical Industries, and Vyne.

Dr. Stein Gold disclosed ties with Almirall, Cutera, Dermata, Galderma, Novartis, Ortho Dermatologics, and Sun Pharmaceutical Industries.

Medscape and this news organization are owned by the same parent company.

HONOLULU – More often than not, patients with rosacea require a combination of treatments to optimize the management of the disease, according to Julie C. Harper, MD.

“We’ve been more comfortable with the idea of combination therapy for acne than we have been for rosacea,” Dr. Harper, who practices in Birmingham, Ala., said at the Hawaii Dermatology Seminar provided by MedscapeLIVE! “If patients are doing great on one treatment, then don’t change it. But if there’s room for improvement, think about combinations.”

National Rosacea Society

National Rosacea Society

Dr. Harper said that she has been especially surprised by the effectiveness of one of these options, microencapsulated benzoyl peroxide cream, 5% (Epsolay), which is approved by the Food and Drug Administration for treating inflammatory lesions of rosacea in adults. In two identical, phase 3 randomized clinical trials of patients with inflammatory rosacea lesions, those treated with microencapsulated benzoyl peroxide achieved a 68.8% reduction in inflammatory lesions at 12 weeks (including 42.5% at week 2), compared with 38%-46% of those on the vehicle, according to the April 2022 announcement of the approval from the manufacturers, Sol-Gel Technologies and Galderma.

Doug Brunk, MDedge News

“A common drug is playing a key role,” Dr. Harper said. “What’s the mechanism of action? I have no idea. I wonder if there may be a bacterial pathogen after all,” possibly Staphylococcus epidermidis, she added. However, she noted, “it does appear that benzoyl peroxide has an impact on Demodex, so maybe that’s the primary way it’s working.”

In her opinion, a key standout from the clinical trial data is the drug’s rapid onset of action, with a 42.5% reduction of lesions at week 2. “What makes this different is that the 5% microencapsulated benzoyl peroxide cream is wrapped up in a silica shell,” said Dr. Harper, a past president of the American Acne and Rosacea Society. “The silica shell kind of acts like a speed bump that slows the release of drug onto the skin. We think that’s what may be giving us this better tolerability.”

In an interview at the meeting, Linda Stein Gold, MD, director of clinical research and division head of dermatology at the Henry Ford Health System, Detroit, said that prior to the approval of Epsolay, benzoyl peroxide was never considered a first-line treatment for rosacea. “The problem is, the conventional formulation is irritating to the skin,” said Dr. Stein Gold, who was involved in clinical trials of Epsolay.

“The benzoyl peroxide encapsulated in the silica shell allows for a slow and steady delivery of medication to the skin in a very controlled manner. It is exceptionally good at getting rosacea under control. In the clinical trials, when we looked at the baseline irritation of the skin and followed those patients when they used the benzoyl 5% microencapsulated benzoyl peroxide cream, the irritation improved.”
 

‘STOP’ mnemonic

When treating her patients with rosacea, Dr. Harper incorporates the mnemonic “STOP” to these patient visits:

S: Identify signs and symptoms of rosacea.

T: Discuss triggers. “We cannot make this disease triggerless, so when you’re talking to your patients, you need to find out what’s triggering their rosacea,” she said.

O: Agree on a treatment outcome. “What is it that’s important to the patient?” she said. “They may tell you, ‘I want to be able to not be so red,’ or ‘I want to get rid of the bumps,’ or ‘I want my eyes to not feel so dry.’ ”

P: Develop a plan that helps achieve that desired outcome with patients.

Dr. Harper disclosed ties with Almirall, Cassiopeia, Cutera, Galderma, EPI, L’Oréal, Ortho Dermatologics, Sol Gel, Sun Pharmaceutical Industries, and Vyne.

Dr. Stein Gold disclosed ties with Almirall, Cutera, Dermata, Galderma, Novartis, Ortho Dermatologics, and Sun Pharmaceutical Industries.

Medscape and this news organization are owned by the same parent company.

HONOLULU – More often than not, patients with rosacea require a combination of treatments to optimize the management of the disease, according to Julie C. Harper, MD.

“We’ve been more comfortable with the idea of combination therapy for acne than we have been for rosacea,” Dr. Harper, who practices in Birmingham, Ala., said at the Hawaii Dermatology Seminar provided by MedscapeLIVE! “If patients are doing great on one treatment, then don’t change it. But if there’s room for improvement, think about combinations.”

National Rosacea Society

National Rosacea Society

Dr. Harper said that she has been especially surprised by the effectiveness of one of these options, microencapsulated benzoyl peroxide cream, 5% (Epsolay), which is approved by the Food and Drug Administration for treating inflammatory lesions of rosacea in adults. In two identical, phase 3 randomized clinical trials of patients with inflammatory rosacea lesions, those treated with microencapsulated benzoyl peroxide achieved a 68.8% reduction in inflammatory lesions at 12 weeks (including 42.5% at week 2), compared with 38%-46% of those on the vehicle, according to the April 2022 announcement of the approval from the manufacturers, Sol-Gel Technologies and Galderma.

Doug Brunk, MDedge News

“A common drug is playing a key role,” Dr. Harper said. “What’s the mechanism of action? I have no idea. I wonder if there may be a bacterial pathogen after all,” possibly Staphylococcus epidermidis, she added. However, she noted, “it does appear that benzoyl peroxide has an impact on Demodex, so maybe that’s the primary way it’s working.”

In her opinion, a key standout from the clinical trial data is the drug’s rapid onset of action, with a 42.5% reduction of lesions at week 2. “What makes this different is that the 5% microencapsulated benzoyl peroxide cream is wrapped up in a silica shell,” said Dr. Harper, a past president of the American Acne and Rosacea Society. “The silica shell kind of acts like a speed bump that slows the release of drug onto the skin. We think that’s what may be giving us this better tolerability.”

In an interview at the meeting, Linda Stein Gold, MD, director of clinical research and division head of dermatology at the Henry Ford Health System, Detroit, said that prior to the approval of Epsolay, benzoyl peroxide was never considered a first-line treatment for rosacea. “The problem is, the conventional formulation is irritating to the skin,” said Dr. Stein Gold, who was involved in clinical trials of Epsolay.

“The benzoyl peroxide encapsulated in the silica shell allows for a slow and steady delivery of medication to the skin in a very controlled manner. It is exceptionally good at getting rosacea under control. In the clinical trials, when we looked at the baseline irritation of the skin and followed those patients when they used the benzoyl 5% microencapsulated benzoyl peroxide cream, the irritation improved.”
 

‘STOP’ mnemonic

When treating her patients with rosacea, Dr. Harper incorporates the mnemonic “STOP” to these patient visits:

S: Identify signs and symptoms of rosacea.

T: Discuss triggers. “We cannot make this disease triggerless, so when you’re talking to your patients, you need to find out what’s triggering their rosacea,” she said.

O: Agree on a treatment outcome. “What is it that’s important to the patient?” she said. “They may tell you, ‘I want to be able to not be so red,’ or ‘I want to get rid of the bumps,’ or ‘I want my eyes to not feel so dry.’ ”

P: Develop a plan that helps achieve that desired outcome with patients.

Dr. Harper disclosed ties with Almirall, Cassiopeia, Cutera, Galderma, EPI, L’Oréal, Ortho Dermatologics, Sol Gel, Sun Pharmaceutical Industries, and Vyne.

Dr. Stein Gold disclosed ties with Almirall, Cutera, Dermata, Galderma, Novartis, Ortho Dermatologics, and Sun Pharmaceutical Industries.

Medscape and this news organization are owned by the same parent company.