Dermatology

The global incidence of rosacea among adults is approximately 5%, based on data from a meta-analysis and systematic review.

Rosacea.org

The National Rosacea Society Expert Committee recently updated its phenotype-based classification system, but the global prevalence and incidence of rosacea remain unknown, wrote Lise Gether, MD, of the University of Copenhagen, Denmark, and her colleagues.

In a review published in the British Journal of Dermatology, the researchers examined the prevalence of rosacea among dermatology patients and in the general population worldwide by analyzing 32 studies including 41 populations and 26,538,319 individuals. The study populations comprised 22 from Europe, 9 from North America, 4 from Asia, 3 from South America, and 3 from Africa. Of the 32 studies, 18 included the general population and 14 included only dermatology patients.

Overall, the pooled proportion of individuals with rosacea was 5.46% in the general population and 2.39% among dermatology patients. Of note, the pooled proportions varied when the studies were grouped by diagnostic method: self-diagnosis (9.7%), physician diagnosis (5.5%), and health care database estimate (1.05%).

Rosacea prevalence by age was highest among individuals aged 45-60 years, but “based on the available data, it was not possible to make useful stratified estimates,” the researchers said.

The researchers estimated rosacea prevalence by gender using data from the 10 studies that reported numbers from both genders. Based on a population of 5,601,642 women and 3,529,559 men, the pooled proportions were similar; 5.4% for women and 3.9% for men.

“The methods used to study the prevalence of rosacea are of great importance as misclassification may be a concern,” the researchers noted. Individuals with mild to moderate rosacea might not seek medical treatment, which might contribute to the low prevalence from health care database estimates. Conversely, the high prevalence with self-reports might suggest a lack of specificity in the questionnaires.

There were no external funding sources. Dr. Gether had no relevant financial disclosures. Coauthors disclosed relationships with companies including Galderma, Pfizer, Eli Lilly, Novartis, and Janssen.
 

SOURCE: Gether L et al. Br J Dermatol. 2018. doi: 10.1111/bjd.16481

The global incidence of rosacea among adults is approximately 5%, based on data from a meta-analysis and systematic review.

Rosacea.org

The National Rosacea Society Expert Committee recently updated its phenotype-based classification system, but the global prevalence and incidence of rosacea remain unknown, wrote Lise Gether, MD, of the University of Copenhagen, Denmark, and her colleagues.

In a review published in the British Journal of Dermatology, the researchers examined the prevalence of rosacea among dermatology patients and in the general population worldwide by analyzing 32 studies including 41 populations and 26,538,319 individuals. The study populations comprised 22 from Europe, 9 from North America, 4 from Asia, 3 from South America, and 3 from Africa. Of the 32 studies, 18 included the general population and 14 included only dermatology patients.

Overall, the pooled proportion of individuals with rosacea was 5.46% in the general population and 2.39% among dermatology patients. Of note, the pooled proportions varied when the studies were grouped by diagnostic method: self-diagnosis (9.7%), physician diagnosis (5.5%), and health care database estimate (1.05%).

Rosacea prevalence by age was highest among individuals aged 45-60 years, but “based on the available data, it was not possible to make useful stratified estimates,” the researchers said.

The researchers estimated rosacea prevalence by gender using data from the 10 studies that reported numbers from both genders. Based on a population of 5,601,642 women and 3,529,559 men, the pooled proportions were similar; 5.4% for women and 3.9% for men.

“The methods used to study the prevalence of rosacea are of great importance as misclassification may be a concern,” the researchers noted. Individuals with mild to moderate rosacea might not seek medical treatment, which might contribute to the low prevalence from health care database estimates. Conversely, the high prevalence with self-reports might suggest a lack of specificity in the questionnaires.

There were no external funding sources. Dr. Gether had no relevant financial disclosures. Coauthors disclosed relationships with companies including Galderma, Pfizer, Eli Lilly, Novartis, and Janssen.
 

SOURCE: Gether L et al. Br J Dermatol. 2018. doi: 10.1111/bjd.16481

The global incidence of rosacea among adults is approximately 5%, based on data from a meta-analysis and systematic review.

Rosacea.org

The National Rosacea Society Expert Committee recently updated its phenotype-based classification system, but the global prevalence and incidence of rosacea remain unknown, wrote Lise Gether, MD, of the University of Copenhagen, Denmark, and her colleagues.

In a review published in the British Journal of Dermatology, the researchers examined the prevalence of rosacea among dermatology patients and in the general population worldwide by analyzing 32 studies including 41 populations and 26,538,319 individuals. The study populations comprised 22 from Europe, 9 from North America, 4 from Asia, 3 from South America, and 3 from Africa. Of the 32 studies, 18 included the general population and 14 included only dermatology patients.

Overall, the pooled proportion of individuals with rosacea was 5.46% in the general population and 2.39% among dermatology patients. Of note, the pooled proportions varied when the studies were grouped by diagnostic method: self-diagnosis (9.7%), physician diagnosis (5.5%), and health care database estimate (1.05%).

Rosacea prevalence by age was highest among individuals aged 45-60 years, but “based on the available data, it was not possible to make useful stratified estimates,” the researchers said.

The researchers estimated rosacea prevalence by gender using data from the 10 studies that reported numbers from both genders. Based on a population of 5,601,642 women and 3,529,559 men, the pooled proportions were similar; 5.4% for women and 3.9% for men.

“The methods used to study the prevalence of rosacea are of great importance as misclassification may be a concern,” the researchers noted. Individuals with mild to moderate rosacea might not seek medical treatment, which might contribute to the low prevalence from health care database estimates. Conversely, the high prevalence with self-reports might suggest a lack of specificity in the questionnaires.

There were no external funding sources. Dr. Gether had no relevant financial disclosures. Coauthors disclosed relationships with companies including Galderma, Pfizer, Eli Lilly, Novartis, and Janssen.
 

SOURCE: Gether L et al. Br J Dermatol. 2018. doi: 10.1111/bjd.16481

LAKE TAHOE, CALIF. – Mosaicism makes everything in genetics more challenging, but it also enables researchers to understand how genes and cell pathways work in cancer and during human development, Leslie G. Biesecker, MD said at the annual meeting of the Society for Pediatric Dermatology.

Dr. Biesecker, senior investigator and head of the clinical genomics section of the National Human Genome Research Institute’s Medical Genomics and Metabolic Genetics Branch, discussed mosaicism and a number of overgrowth syndromes that he and his associates have been studying that have clinical relevance for pediatric dermatologists. He noted that mosaicism can affect any tissue, anywhere, in any pattern. “If an affected cell cannot survive gametogenesis, fertilization, or survive early development, this generates Happle-type mosaicism,” explained Dr. Biesecker, who is trained in pediatrics and in clinical and molecular genetics.

“This is characterized by patchy manifestations, and no parent-to-child transmission or recurrence. You must always be careful here, though, because Mother Nature does what she wants to. Mosaic mutations can happen more than once, but it’s a very unlikely outcome. Happle-type mosaicism is also characterized by discordant monozygotic twins,” he noted.

The prototype for Happle-type mosaicism is Proteus syndrome, formerly known as Elephant Man disease, which is caused by a mutation in the AKT1 gene. Patients with Proteus syndrome undergo severe, relentless overgrowth, and about 25% of them die during childhood. “If you see one of these patients, you have a serious clinical problem on your hands,” he said. “There is enormous individual variability, but it is ultra rare.”

Dermatologic lesions that are characteristic of Proteus syndrome include cerebriform connective tissue nevus, which typically presents on the hands and feet. “A wide range of vascular malformations have also been associated with this, even patients with arteriovenous malformations,” Dr. Biesecker said. “They are a serious problem.” Linear verrucous epidermal nevus is another characteristic lesion of Proteus syndrome. It can present in a number of ways and in various body sites. “The natural history of these lesions is important,” he commented. “Over time, are they stable, or do they spread and expand over time? These lesions do not ever spontaneously regress. This does enable molecular diagnosis, but don’t bother sampling their blood, because it will be negative. You have to have a biopsy sample.”

Overgrowth syndromes that do not meet criteria for Proteus syndrome fall into a category known as PIK3CA-related overgrowth spectrum, which Dr. Biesecker characterized as “a bunch of clinical designations all caused by the same underlying somatic mutation in a gene called PIK3CA. There is an enormous variability in these patients, ranging from those who have profound overgrowth, including malformations, truncal overgrowth, and vascular malformations, and digital overgrowth in all sorts of patterns. We designate this as PIK3CA-related overgrowth spectrum (PROS), because we can’t clinically separate these things from one another.”

These conditions include what used to be called CLOVES syndrome (congenital lipomatous overgrowth, vascular malformations, epidermal nevi, and scoliosis/skeletal/spinal anomalies), facial infiltrating lipomatosis, and megalencephaly-capillary malformation syndrome. PROS is about 100 times more common than Proteus syndrome. “There are no rational boundaries to distinguish these entities,” Dr. Biesecker said. “They are rationalized under a combined clinical-molecular PROS framework, meaning that the molecular diagnosis is absolutely key to correctly diagnosing these patients.”

In this way, mosaicism challenges the traditional concept of diagnosing overgrowth disorders. “What we thought were separate disorders are in fact many manifestations of a single disorder,” he continued. “When I was doing my genetics training, we were taught that it would turn out that there was one gene for every disease, and one disease for every gene. That is completely wrong; it’s much more complicated than that. Mosaicism is also important for us as biologists, because it gives us a window into biology we otherwise would not see. Without a mosaicism, Proteus syndrome cannot exist biologically. So if I want to understand that gene product, I have to study patients who are mosaics. Mosaicism can happen in any tissue, whether it’s visible or not.”

Dr. Biesecker, who has been elected to serve as president of the American Society of Human Genetics for 2019, noted that most of the gene mutations that cause overgrowth disorders are the same ones implicated in cancer. “It makes sense, because cancer is a disorder of uncontrolled proliferation and differentiation,” he said. “These overgrowth disorders are similar but less severe manifestations of the same problem. It turns out that these mosaic patients are single gene model systems of cancer biology.” Therefore, when a drug company develops an anti-cancer drug, he continued, it also can be useful for PROS or Proteus syndrome. It’s much easier to inhibit a protein that’s overactive than it is to replace the activity of a gene that has lost its function.

But in PROS and Proteus, “we have very different treatment objectives than oncologists do,” he said. “Our goal is to reduce the signaling caused by these mutations; we do not want to kill the cells. Some of my patients with these disorders have pretty close to 50% of cells in their body carrying these mutations. If I were thinking like an oncologist, the oncologist wants to kill cancer cells; that’s their objective. If I were to kill all of the mutant cells in my patients, I’m certain that would kill them.”

One promising development is the investigational oral agent ARQ 092, which is an inhibitor of AKT1. Dr. Biesecker and his colleagues at the NIH have been working to figure out what dosing should be used in humans based on mouse data, lab data, and data from cancer patients. They started with about one-twelvth the dose that oncologists use. After treating the first patient with overgrowth syndrome, on day 15 that person’s AKT1 level dropped to about 20% of normal, while on day 75 it moved to around 60% of normal. “We are right in that zone where we want to drive the activity of that protein to about half of what it should be,” Dr. Biesecker said. He and his colleagues also have observed regression of lesions in a patient with cerebriform connective tissue nevus who was treated with ARQ 092. “We’ve never seen this before.”

Dr. Biesecker disclosed that he is a member of the Illumina medical ethics board. He has received royalties from Genentech and in-kind research support from ArQule and Pfizer.

[email protected]

 

LAKE TAHOE, CALIF. – Mosaicism makes everything in genetics more challenging, but it also enables researchers to understand how genes and cell pathways work in cancer and during human development, Leslie G. Biesecker, MD said at the annual meeting of the Society for Pediatric Dermatology.

Dr. Biesecker, senior investigator and head of the clinical genomics section of the National Human Genome Research Institute’s Medical Genomics and Metabolic Genetics Branch, discussed mosaicism and a number of overgrowth syndromes that he and his associates have been studying that have clinical relevance for pediatric dermatologists. He noted that mosaicism can affect any tissue, anywhere, in any pattern. “If an affected cell cannot survive gametogenesis, fertilization, or survive early development, this generates Happle-type mosaicism,” explained Dr. Biesecker, who is trained in pediatrics and in clinical and molecular genetics.

“This is characterized by patchy manifestations, and no parent-to-child transmission or recurrence. You must always be careful here, though, because Mother Nature does what she wants to. Mosaic mutations can happen more than once, but it’s a very unlikely outcome. Happle-type mosaicism is also characterized by discordant monozygotic twins,” he noted.

The prototype for Happle-type mosaicism is Proteus syndrome, formerly known as Elephant Man disease, which is caused by a mutation in the AKT1 gene. Patients with Proteus syndrome undergo severe, relentless overgrowth, and about 25% of them die during childhood. “If you see one of these patients, you have a serious clinical problem on your hands,” he said. “There is enormous individual variability, but it is ultra rare.”

Dermatologic lesions that are characteristic of Proteus syndrome include cerebriform connective tissue nevus, which typically presents on the hands and feet. “A wide range of vascular malformations have also been associated with this, even patients with arteriovenous malformations,” Dr. Biesecker said. “They are a serious problem.” Linear verrucous epidermal nevus is another characteristic lesion of Proteus syndrome. It can present in a number of ways and in various body sites. “The natural history of these lesions is important,” he commented. “Over time, are they stable, or do they spread and expand over time? These lesions do not ever spontaneously regress. This does enable molecular diagnosis, but don’t bother sampling their blood, because it will be negative. You have to have a biopsy sample.”

Overgrowth syndromes that do not meet criteria for Proteus syndrome fall into a category known as PIK3CA-related overgrowth spectrum, which Dr. Biesecker characterized as “a bunch of clinical designations all caused by the same underlying somatic mutation in a gene called PIK3CA. There is an enormous variability in these patients, ranging from those who have profound overgrowth, including malformations, truncal overgrowth, and vascular malformations, and digital overgrowth in all sorts of patterns. We designate this as PIK3CA-related overgrowth spectrum (PROS), because we can’t clinically separate these things from one another.”

These conditions include what used to be called CLOVES syndrome (congenital lipomatous overgrowth, vascular malformations, epidermal nevi, and scoliosis/skeletal/spinal anomalies), facial infiltrating lipomatosis, and megalencephaly-capillary malformation syndrome. PROS is about 100 times more common than Proteus syndrome. “There are no rational boundaries to distinguish these entities,” Dr. Biesecker said. “They are rationalized under a combined clinical-molecular PROS framework, meaning that the molecular diagnosis is absolutely key to correctly diagnosing these patients.”

In this way, mosaicism challenges the traditional concept of diagnosing overgrowth disorders. “What we thought were separate disorders are in fact many manifestations of a single disorder,” he continued. “When I was doing my genetics training, we were taught that it would turn out that there was one gene for every disease, and one disease for every gene. That is completely wrong; it’s much more complicated than that. Mosaicism is also important for us as biologists, because it gives us a window into biology we otherwise would not see. Without a mosaicism, Proteus syndrome cannot exist biologically. So if I want to understand that gene product, I have to study patients who are mosaics. Mosaicism can happen in any tissue, whether it’s visible or not.”

Dr. Biesecker, who has been elected to serve as president of the American Society of Human Genetics for 2019, noted that most of the gene mutations that cause overgrowth disorders are the same ones implicated in cancer. “It makes sense, because cancer is a disorder of uncontrolled proliferation and differentiation,” he said. “These overgrowth disorders are similar but less severe manifestations of the same problem. It turns out that these mosaic patients are single gene model systems of cancer biology.” Therefore, when a drug company develops an anti-cancer drug, he continued, it also can be useful for PROS or Proteus syndrome. It’s much easier to inhibit a protein that’s overactive than it is to replace the activity of a gene that has lost its function.

But in PROS and Proteus, “we have very different treatment objectives than oncologists do,” he said. “Our goal is to reduce the signaling caused by these mutations; we do not want to kill the cells. Some of my patients with these disorders have pretty close to 50% of cells in their body carrying these mutations. If I were thinking like an oncologist, the oncologist wants to kill cancer cells; that’s their objective. If I were to kill all of the mutant cells in my patients, I’m certain that would kill them.”

One promising development is the investigational oral agent ARQ 092, which is an inhibitor of AKT1. Dr. Biesecker and his colleagues at the NIH have been working to figure out what dosing should be used in humans based on mouse data, lab data, and data from cancer patients. They started with about one-twelvth the dose that oncologists use. After treating the first patient with overgrowth syndrome, on day 15 that person’s AKT1 level dropped to about 20% of normal, while on day 75 it moved to around 60% of normal. “We are right in that zone where we want to drive the activity of that protein to about half of what it should be,” Dr. Biesecker said. He and his colleagues also have observed regression of lesions in a patient with cerebriform connective tissue nevus who was treated with ARQ 092. “We’ve never seen this before.”

Dr. Biesecker disclosed that he is a member of the Illumina medical ethics board. He has received royalties from Genentech and in-kind research support from ArQule and Pfizer.

[email protected]

 

LAKE TAHOE, CALIF. – Mosaicism makes everything in genetics more challenging, but it also enables researchers to understand how genes and cell pathways work in cancer and during human development, Leslie G. Biesecker, MD said at the annual meeting of the Society for Pediatric Dermatology.

Dr. Biesecker, senior investigator and head of the clinical genomics section of the National Human Genome Research Institute’s Medical Genomics and Metabolic Genetics Branch, discussed mosaicism and a number of overgrowth syndromes that he and his associates have been studying that have clinical relevance for pediatric dermatologists. He noted that mosaicism can affect any tissue, anywhere, in any pattern. “If an affected cell cannot survive gametogenesis, fertilization, or survive early development, this generates Happle-type mosaicism,” explained Dr. Biesecker, who is trained in pediatrics and in clinical and molecular genetics.

“This is characterized by patchy manifestations, and no parent-to-child transmission or recurrence. You must always be careful here, though, because Mother Nature does what she wants to. Mosaic mutations can happen more than once, but it’s a very unlikely outcome. Happle-type mosaicism is also characterized by discordant monozygotic twins,” he noted.

The prototype for Happle-type mosaicism is Proteus syndrome, formerly known as Elephant Man disease, which is caused by a mutation in the AKT1 gene. Patients with Proteus syndrome undergo severe, relentless overgrowth, and about 25% of them die during childhood. “If you see one of these patients, you have a serious clinical problem on your hands,” he said. “There is enormous individual variability, but it is ultra rare.”

Dermatologic lesions that are characteristic of Proteus syndrome include cerebriform connective tissue nevus, which typically presents on the hands and feet. “A wide range of vascular malformations have also been associated with this, even patients with arteriovenous malformations,” Dr. Biesecker said. “They are a serious problem.” Linear verrucous epidermal nevus is another characteristic lesion of Proteus syndrome. It can present in a number of ways and in various body sites. “The natural history of these lesions is important,” he commented. “Over time, are they stable, or do they spread and expand over time? These lesions do not ever spontaneously regress. This does enable molecular diagnosis, but don’t bother sampling their blood, because it will be negative. You have to have a biopsy sample.”

Overgrowth syndromes that do not meet criteria for Proteus syndrome fall into a category known as PIK3CA-related overgrowth spectrum, which Dr. Biesecker characterized as “a bunch of clinical designations all caused by the same underlying somatic mutation in a gene called PIK3CA. There is an enormous variability in these patients, ranging from those who have profound overgrowth, including malformations, truncal overgrowth, and vascular malformations, and digital overgrowth in all sorts of patterns. We designate this as PIK3CA-related overgrowth spectrum (PROS), because we can’t clinically separate these things from one another.”

These conditions include what used to be called CLOVES syndrome (congenital lipomatous overgrowth, vascular malformations, epidermal nevi, and scoliosis/skeletal/spinal anomalies), facial infiltrating lipomatosis, and megalencephaly-capillary malformation syndrome. PROS is about 100 times more common than Proteus syndrome. “There are no rational boundaries to distinguish these entities,” Dr. Biesecker said. “They are rationalized under a combined clinical-molecular PROS framework, meaning that the molecular diagnosis is absolutely key to correctly diagnosing these patients.”

In this way, mosaicism challenges the traditional concept of diagnosing overgrowth disorders. “What we thought were separate disorders are in fact many manifestations of a single disorder,” he continued. “When I was doing my genetics training, we were taught that it would turn out that there was one gene for every disease, and one disease for every gene. That is completely wrong; it’s much more complicated than that. Mosaicism is also important for us as biologists, because it gives us a window into biology we otherwise would not see. Without a mosaicism, Proteus syndrome cannot exist biologically. So if I want to understand that gene product, I have to study patients who are mosaics. Mosaicism can happen in any tissue, whether it’s visible or not.”

Dr. Biesecker, who has been elected to serve as president of the American Society of Human Genetics for 2019, noted that most of the gene mutations that cause overgrowth disorders are the same ones implicated in cancer. “It makes sense, because cancer is a disorder of uncontrolled proliferation and differentiation,” he said. “These overgrowth disorders are similar but less severe manifestations of the same problem. It turns out that these mosaic patients are single gene model systems of cancer biology.” Therefore, when a drug company develops an anti-cancer drug, he continued, it also can be useful for PROS or Proteus syndrome. It’s much easier to inhibit a protein that’s overactive than it is to replace the activity of a gene that has lost its function.

But in PROS and Proteus, “we have very different treatment objectives than oncologists do,” he said. “Our goal is to reduce the signaling caused by these mutations; we do not want to kill the cells. Some of my patients with these disorders have pretty close to 50% of cells in their body carrying these mutations. If I were thinking like an oncologist, the oncologist wants to kill cancer cells; that’s their objective. If I were to kill all of the mutant cells in my patients, I’m certain that would kill them.”

One promising development is the investigational oral agent ARQ 092, which is an inhibitor of AKT1. Dr. Biesecker and his colleagues at the NIH have been working to figure out what dosing should be used in humans based on mouse data, lab data, and data from cancer patients. They started with about one-twelvth the dose that oncologists use. After treating the first patient with overgrowth syndrome, on day 15 that person’s AKT1 level dropped to about 20% of normal, while on day 75 it moved to around 60% of normal. “We are right in that zone where we want to drive the activity of that protein to about half of what it should be,” Dr. Biesecker said. He and his colleagues also have observed regression of lesions in a patient with cerebriform connective tissue nevus who was treated with ARQ 092. “We’ve never seen this before.”

Dr. Biesecker disclosed that he is a member of the Illumina medical ethics board. He has received royalties from Genentech and in-kind research support from ArQule and Pfizer.

[email protected]

 

LAKE TAHOE, CALIF. – After Brett King, MD, PhD, and his wife and collaborator, Brittany G. Craiglow, MD, published an index case of oral tofacitinib reversing alopecia universalis in a 25-year-old male patient back in 2014 (J Invest Dermatol. 2014;134:2988-90), they received hundreds of e-mails and phone calls from clinicians and patients.

“We also received quite a bit of media attention from around the world,” Dr. King recalled at the annual meeting of the Society for Pediatric Dermatology.

After all, alopecia areata and its variants affect 1%-2% of the population and have a marked impact on health-related quality of life, with high rates of concomitant generalized anxiety disorder and major depressive disorder. “The health-related quality of life is similar to that of atopic dermatitis and psoriasis, and there are no reliably effective therapies, especially for severe disease,” he said. “If treating atopic dermatitis and psoriasis with systemic agents is appropriate, then certainly treating alopecia areata is, too.”

Currently available Janus kinase (JAK) inhibitors include tofacitinib (Xeljanz), ruxolitinib (Jakafi), and baricitinib (Olumiant). “These medicines are not [Food and Drug Administration] approved for alopecia areata, though tofacitinib was recently approved for psoriatic arthritis, and so we have formal entry of this medicine into dermatology for the first time,” said Dr. King, who is a dermatologist at Yale University, New Haven, Conn.

Potential adverse effects of JAKs include nasopharyngitis, headache, diarrhea, elevated cholesterol, uncommonly herpes zoster, cytopenias, transaminitis, and rarely non-melanoma skin cancer, solid organ malignancy and lymphoma, and GI perforation. Tofacitinib has an FDA black box warning regarding serious infections and malignancies, and baricitinib has these plus an additional warning about thrombosis.

In an open label, two-center trial that followed the index patient report, Dr. King and his associates enrolled 66 patients aged 19-35 years who had greater than 50% scalp hair loss for at least 6 months to receive tofacitinib 5 mg twice daily for 3 months (JCI Insight. 2016; 1[15]:e89776). A primary outcome of interest was regrowth of hair as measured by the percent change in Severity of Alopecia Tool (SALT) score. A SALT score of 100 indicates baldness, while a score of zero indicates no hair loss. Following 3 months of treatment, 32% of patients had a greater than 50% change in their SALT score, 32% had a change in the range of 5%-50%, while 36% had a change that was less than 5%.

“One of the interesting findings was that long duration of current episode of complete scalp hair loss was a negative predictor of treatment response, especially for those who have had hair loss greater than 10 years,” Dr. King said. Adverse events were “pretty bland,” with the most common being upper respiratory infection (17%), headache (8%), abdominal pain (8%), and acne (8%). Weight gain occurred in 1.5% of patients.

Next, Dr. King and colleagues reviewed the records of 90 patients aged 18 years or older who were treated with tofacitinib for at least 4 months (J Am Acad Dermatol. 2017;76[1]:22-8). Patients had greater than 40% scalp hair loss, and the tofacitinib dose was up to 10 mg per day at the discretion of the physician. “About 43% of patients were treated with tofacitinib 5 mg” twice daily, Dr. King said. “Other patients had higher doses or the addition of prednisone for three doses to see if that would help.”

After treatment, 20% of patients had a greater than 90% change in their SALT score (complete scalp hair regrowth), while 38.4% had a change that ranged from 51%-90%. At the same time, 18% had a change in their SALT score that ranged from 6%-50%, while 23% had a change that was 5% or less. As observed in the earlier trial, researchers saw a negative correlation between duration of current episode of hair loss and latest percent change in SALT score.

“We believe that you have to catch people before they get to more than 10 years of complete scalp hair loss,” Dr. King said. “This is important for the pediatric age group. I just saw somebody who’s 13, and they’ve been bald for 8 years. You might make the argument that this person deserves treatment, at least for a period of time long enough to regrow their hair in order to reset the clock.”

The most common adverse events were acne and weight gain.

In a separate analysis, Dr. King, Dr. Craiglow, and Lucy Y. Liu, evaluated the use of tofacitinib for at least 2 months in 13 alopecia areata patients aged 12-17 years (J Am Acad Dermatol. 2017;76[1]:29-32). They limited the analysis to those who had greater than 20% scalp hair loss, alopecia totalis, or alopecia universalis that was stable or worsening for 6 months or longer. Of the 13 patients, 9 (69%) were responders. Of the four non-responders, one had a very long duration of baldness. The percent change in SALT score was 93% overall, including 100% in the responder group over a median of 5 months and just 1% in the non-responder group over a median of 4 months. “This does not work every time,” Dr. King said.

While some preliminary studies of topical JAK inhibitors for alopecia areata show promise, it remains unclear if this approach will translate in a clinically meaningful way, he said. Clinical trials are currently under way.

Dr. King disclosed that he has received honoraria or consulting fees from Aclaris Therapeutics, Celgene, Concert Pharmaceuticals, Eli Lilly, Pfizer, Regeneron Pharmaceuticals, and Dermavant Sciences. He has also received funding support from The Ranjini and Ajay Poddar Resource Fund for Dermatologic Diseases Research.

[email protected]

LAKE TAHOE, CALIF. – After Brett King, MD, PhD, and his wife and collaborator, Brittany G. Craiglow, MD, published an index case of oral tofacitinib reversing alopecia universalis in a 25-year-old male patient back in 2014 (J Invest Dermatol. 2014;134:2988-90), they received hundreds of e-mails and phone calls from clinicians and patients.

“We also received quite a bit of media attention from around the world,” Dr. King recalled at the annual meeting of the Society for Pediatric Dermatology.

After all, alopecia areata and its variants affect 1%-2% of the population and have a marked impact on health-related quality of life, with high rates of concomitant generalized anxiety disorder and major depressive disorder. “The health-related quality of life is similar to that of atopic dermatitis and psoriasis, and there are no reliably effective therapies, especially for severe disease,” he said. “If treating atopic dermatitis and psoriasis with systemic agents is appropriate, then certainly treating alopecia areata is, too.”

Currently available Janus kinase (JAK) inhibitors include tofacitinib (Xeljanz), ruxolitinib (Jakafi), and baricitinib (Olumiant). “These medicines are not [Food and Drug Administration] approved for alopecia areata, though tofacitinib was recently approved for psoriatic arthritis, and so we have formal entry of this medicine into dermatology for the first time,” said Dr. King, who is a dermatologist at Yale University, New Haven, Conn.

Potential adverse effects of JAKs include nasopharyngitis, headache, diarrhea, elevated cholesterol, uncommonly herpes zoster, cytopenias, transaminitis, and rarely non-melanoma skin cancer, solid organ malignancy and lymphoma, and GI perforation. Tofacitinib has an FDA black box warning regarding serious infections and malignancies, and baricitinib has these plus an additional warning about thrombosis.

In an open label, two-center trial that followed the index patient report, Dr. King and his associates enrolled 66 patients aged 19-35 years who had greater than 50% scalp hair loss for at least 6 months to receive tofacitinib 5 mg twice daily for 3 months (JCI Insight. 2016; 1[15]:e89776). A primary outcome of interest was regrowth of hair as measured by the percent change in Severity of Alopecia Tool (SALT) score. A SALT score of 100 indicates baldness, while a score of zero indicates no hair loss. Following 3 months of treatment, 32% of patients had a greater than 50% change in their SALT score, 32% had a change in the range of 5%-50%, while 36% had a change that was less than 5%.

“One of the interesting findings was that long duration of current episode of complete scalp hair loss was a negative predictor of treatment response, especially for those who have had hair loss greater than 10 years,” Dr. King said. Adverse events were “pretty bland,” with the most common being upper respiratory infection (17%), headache (8%), abdominal pain (8%), and acne (8%). Weight gain occurred in 1.5% of patients.

Next, Dr. King and colleagues reviewed the records of 90 patients aged 18 years or older who were treated with tofacitinib for at least 4 months (J Am Acad Dermatol. 2017;76[1]:22-8). Patients had greater than 40% scalp hair loss, and the tofacitinib dose was up to 10 mg per day at the discretion of the physician. “About 43% of patients were treated with tofacitinib 5 mg” twice daily, Dr. King said. “Other patients had higher doses or the addition of prednisone for three doses to see if that would help.”

After treatment, 20% of patients had a greater than 90% change in their SALT score (complete scalp hair regrowth), while 38.4% had a change that ranged from 51%-90%. At the same time, 18% had a change in their SALT score that ranged from 6%-50%, while 23% had a change that was 5% or less. As observed in the earlier trial, researchers saw a negative correlation between duration of current episode of hair loss and latest percent change in SALT score.

“We believe that you have to catch people before they get to more than 10 years of complete scalp hair loss,” Dr. King said. “This is important for the pediatric age group. I just saw somebody who’s 13, and they’ve been bald for 8 years. You might make the argument that this person deserves treatment, at least for a period of time long enough to regrow their hair in order to reset the clock.”

The most common adverse events were acne and weight gain.

In a separate analysis, Dr. King, Dr. Craiglow, and Lucy Y. Liu, evaluated the use of tofacitinib for at least 2 months in 13 alopecia areata patients aged 12-17 years (J Am Acad Dermatol. 2017;76[1]:29-32). They limited the analysis to those who had greater than 20% scalp hair loss, alopecia totalis, or alopecia universalis that was stable or worsening for 6 months or longer. Of the 13 patients, 9 (69%) were responders. Of the four non-responders, one had a very long duration of baldness. The percent change in SALT score was 93% overall, including 100% in the responder group over a median of 5 months and just 1% in the non-responder group over a median of 4 months. “This does not work every time,” Dr. King said.

While some preliminary studies of topical JAK inhibitors for alopecia areata show promise, it remains unclear if this approach will translate in a clinically meaningful way, he said. Clinical trials are currently under way.

Dr. King disclosed that he has received honoraria or consulting fees from Aclaris Therapeutics, Celgene, Concert Pharmaceuticals, Eli Lilly, Pfizer, Regeneron Pharmaceuticals, and Dermavant Sciences. He has also received funding support from The Ranjini and Ajay Poddar Resource Fund for Dermatologic Diseases Research.

[email protected]

LAKE TAHOE, CALIF. – After Brett King, MD, PhD, and his wife and collaborator, Brittany G. Craiglow, MD, published an index case of oral tofacitinib reversing alopecia universalis in a 25-year-old male patient back in 2014 (J Invest Dermatol. 2014;134:2988-90), they received hundreds of e-mails and phone calls from clinicians and patients.

“We also received quite a bit of media attention from around the world,” Dr. King recalled at the annual meeting of the Society for Pediatric Dermatology.

After all, alopecia areata and its variants affect 1%-2% of the population and have a marked impact on health-related quality of life, with high rates of concomitant generalized anxiety disorder and major depressive disorder. “The health-related quality of life is similar to that of atopic dermatitis and psoriasis, and there are no reliably effective therapies, especially for severe disease,” he said. “If treating atopic dermatitis and psoriasis with systemic agents is appropriate, then certainly treating alopecia areata is, too.”

Currently available Janus kinase (JAK) inhibitors include tofacitinib (Xeljanz), ruxolitinib (Jakafi), and baricitinib (Olumiant). “These medicines are not [Food and Drug Administration] approved for alopecia areata, though tofacitinib was recently approved for psoriatic arthritis, and so we have formal entry of this medicine into dermatology for the first time,” said Dr. King, who is a dermatologist at Yale University, New Haven, Conn.

Potential adverse effects of JAKs include nasopharyngitis, headache, diarrhea, elevated cholesterol, uncommonly herpes zoster, cytopenias, transaminitis, and rarely non-melanoma skin cancer, solid organ malignancy and lymphoma, and GI perforation. Tofacitinib has an FDA black box warning regarding serious infections and malignancies, and baricitinib has these plus an additional warning about thrombosis.

In an open label, two-center trial that followed the index patient report, Dr. King and his associates enrolled 66 patients aged 19-35 years who had greater than 50% scalp hair loss for at least 6 months to receive tofacitinib 5 mg twice daily for 3 months (JCI Insight. 2016; 1[15]:e89776). A primary outcome of interest was regrowth of hair as measured by the percent change in Severity of Alopecia Tool (SALT) score. A SALT score of 100 indicates baldness, while a score of zero indicates no hair loss. Following 3 months of treatment, 32% of patients had a greater than 50% change in their SALT score, 32% had a change in the range of 5%-50%, while 36% had a change that was less than 5%.

“One of the interesting findings was that long duration of current episode of complete scalp hair loss was a negative predictor of treatment response, especially for those who have had hair loss greater than 10 years,” Dr. King said. Adverse events were “pretty bland,” with the most common being upper respiratory infection (17%), headache (8%), abdominal pain (8%), and acne (8%). Weight gain occurred in 1.5% of patients.

Next, Dr. King and colleagues reviewed the records of 90 patients aged 18 years or older who were treated with tofacitinib for at least 4 months (J Am Acad Dermatol. 2017;76[1]:22-8). Patients had greater than 40% scalp hair loss, and the tofacitinib dose was up to 10 mg per day at the discretion of the physician. “About 43% of patients were treated with tofacitinib 5 mg” twice daily, Dr. King said. “Other patients had higher doses or the addition of prednisone for three doses to see if that would help.”

After treatment, 20% of patients had a greater than 90% change in their SALT score (complete scalp hair regrowth), while 38.4% had a change that ranged from 51%-90%. At the same time, 18% had a change in their SALT score that ranged from 6%-50%, while 23% had a change that was 5% or less. As observed in the earlier trial, researchers saw a negative correlation between duration of current episode of hair loss and latest percent change in SALT score.

“We believe that you have to catch people before they get to more than 10 years of complete scalp hair loss,” Dr. King said. “This is important for the pediatric age group. I just saw somebody who’s 13, and they’ve been bald for 8 years. You might make the argument that this person deserves treatment, at least for a period of time long enough to regrow their hair in order to reset the clock.”

The most common adverse events were acne and weight gain.

In a separate analysis, Dr. King, Dr. Craiglow, and Lucy Y. Liu, evaluated the use of tofacitinib for at least 2 months in 13 alopecia areata patients aged 12-17 years (J Am Acad Dermatol. 2017;76[1]:29-32). They limited the analysis to those who had greater than 20% scalp hair loss, alopecia totalis, or alopecia universalis that was stable or worsening for 6 months or longer. Of the 13 patients, 9 (69%) were responders. Of the four non-responders, one had a very long duration of baldness. The percent change in SALT score was 93% overall, including 100% in the responder group over a median of 5 months and just 1% in the non-responder group over a median of 4 months. “This does not work every time,” Dr. King said.

While some preliminary studies of topical JAK inhibitors for alopecia areata show promise, it remains unclear if this approach will translate in a clinically meaningful way, he said. Clinical trials are currently under way.

Dr. King disclosed that he has received honoraria or consulting fees from Aclaris Therapeutics, Celgene, Concert Pharmaceuticals, Eli Lilly, Pfizer, Regeneron Pharmaceuticals, and Dermavant Sciences. He has also received funding support from The Ranjini and Ajay Poddar Resource Fund for Dermatologic Diseases Research.

[email protected]

LAKE TAHOE, CALIF. – Strong associations exist between intestinal dysbiosis and a wide variety of gut and systemic diseases, according to Mark A. Underwood, MD.

Doug Brunk/MDedge News

“Antibiotic exposure changes the composition of the intestinal microbiota,” he said at the annual meeting of the Society for Pediatric Dermatology. “That clearly causes both antibiotic-associated diarrhea and Clostridium difficile colitis. The bigger question is, is it possible that intestinal dysbiosis is related to a whole bunch of other systemic diseases? In other words, does an insult during a critical window of development cause changes in the intestinal microbiota that can lead to systemic diseases in the brain, the lung, the liver, or the immune system?”

According Dr. Underwood, a pediatrician who is chief of the division of neonatology at the University of California, Davis, the prevalence of dysbiosis is increasing worldwide, particularly in developed countries, where Bifidobacteria are decreasing and Enterobacteriaceae are increasing. “Those changes are associated with gut permeability and alterations in both local and systemic inflammation, and the risk for a number of diseases, including atopic dermatitis,” he said. Key reasons for the increasing prevalence of dysbiosis, he continued, include the use of antibiotics, cesarean section delivery, formula feeding, changes in hygiene that alter the intestinal biota, the high-fat, high-sugar Western diet, and a loss of vertical and horizontal transmission over generations.

In an effort to evaluate the association between early childhood antibiotic use with allergic diseases in later childhood, Japanese researchers followed 1,200 infants to the age of 5 years (Ann Allergy Asthma Immunol. 2017;119:54-8). They found that antibiotic exposure within the first 2 years of life was associated with an increased risk of asthma (adjusted odds ratio 1.72), allergic rhinitis (adjusted OR 1.65), and atopic dermatitis (adjusted OR 1.40). In a more recent, smaller prospective study, 436 Dutch infants were followed to 1 year of age (Pediatr Allergy Immunol. 2018;29[2]:151-8). The researchers found that antibiotic exposure within the first week of life was associated with allergic sensitization (adjusted OR 3.26), colic (adjusted OR 1.66), and wheezing (adjusted OR 1.56).

In a study of 44 term infants with a family history of allergy, changes in the fecal microbiota, especially colonization with Ruminococcus gnavus, preceded the onset of allergic symptoms (Gastroenterol. 2018;154[1]:154-67). The same researchers observed similar findings in an animal model.

One potential mechanism by which intestinal dysbiosis causes systemic disease is stimulation of toll-like receptor 4 (TLR4), “which is a receptor on a variety of mucosal cells that senses the presence of a microbial pathogen-associated patterns, particularly those of Gram-negative Enterobacteriaceae,” Dr. Underwood explained. Other potential mechanisms include increased intestinal permeability, an increase in the pH and decreases in short-chain fatty acids within the gut lumen, and a loss of intraluminal hypoxia. “Think of the colon as an anaerobic chamber,” he said. “The colon lumen should be very low in oxygen. It should be dominated by obligate anaerobes.”

Efforts to prevent or treat dysbiosis-related diseases include the use of probiotics and fecal transplantation. A recent Cochrane review of 8,672 patients found “moderate certainty evidence” that probiotics are effective for preventing C. difficile-associated diarrhea. The analysis included 31 randomized, controlled trials of adults who were treated either with a probiotic or with a placebo. When pooled, the risk ratio was 0.40, which represented a significant protection. In addition, a summary of 7 randomized controlled trials and 30 case series suggests that fecal microbial transplantation is superior to vancomycin for adults with recurrent C. difficile colitis (relative risk 0.23) (Aliment Pharmacol Ther. 2017;46[5]:470-93).

To date, the effect of giving probiotics to pregnant women who have a family history of allergy is less clear. One pooled analysis of such studies put the overall risk ratio at 0.74 (Mil Med. 2014;179[6]:580-92). “While I think the jury’s still out on how to best prevent atopic dermatitis in these families, it looks like there is some potential benefit in treating these moms during pregnancy with probiotics and treating the infant during the first few months of life,” Dr. Underwood said. The most effective were mixtures including one or more Lactobacillus species or L. rhamnosus, mixtures including one or more Bifidobacterium species, or B. lactis by itself. The use of probiotics also has been found to prevent necrotizing enterocolitis, sepsis, and death in premature infants (Semin Pediatr Surg. 2018;27[1]:39-46).

Dr. Underwood disclosed that he has received honoraria from Abbott and that he was a member of the scientific review board for Avexegen. He also chaired the data safety and monitoring board for Infant Bacterial Therapeutics and has received support from Evolve BioSystems to perform a clinical trial.

[email protected]

LAKE TAHOE, CALIF. – Strong associations exist between intestinal dysbiosis and a wide variety of gut and systemic diseases, according to Mark A. Underwood, MD.

Doug Brunk/MDedge News

“Antibiotic exposure changes the composition of the intestinal microbiota,” he said at the annual meeting of the Society for Pediatric Dermatology. “That clearly causes both antibiotic-associated diarrhea and Clostridium difficile colitis. The bigger question is, is it possible that intestinal dysbiosis is related to a whole bunch of other systemic diseases? In other words, does an insult during a critical window of development cause changes in the intestinal microbiota that can lead to systemic diseases in the brain, the lung, the liver, or the immune system?”

According Dr. Underwood, a pediatrician who is chief of the division of neonatology at the University of California, Davis, the prevalence of dysbiosis is increasing worldwide, particularly in developed countries, where Bifidobacteria are decreasing and Enterobacteriaceae are increasing. “Those changes are associated with gut permeability and alterations in both local and systemic inflammation, and the risk for a number of diseases, including atopic dermatitis,” he said. Key reasons for the increasing prevalence of dysbiosis, he continued, include the use of antibiotics, cesarean section delivery, formula feeding, changes in hygiene that alter the intestinal biota, the high-fat, high-sugar Western diet, and a loss of vertical and horizontal transmission over generations.

In an effort to evaluate the association between early childhood antibiotic use with allergic diseases in later childhood, Japanese researchers followed 1,200 infants to the age of 5 years (Ann Allergy Asthma Immunol. 2017;119:54-8). They found that antibiotic exposure within the first 2 years of life was associated with an increased risk of asthma (adjusted odds ratio 1.72), allergic rhinitis (adjusted OR 1.65), and atopic dermatitis (adjusted OR 1.40). In a more recent, smaller prospective study, 436 Dutch infants were followed to 1 year of age (Pediatr Allergy Immunol. 2018;29[2]:151-8). The researchers found that antibiotic exposure within the first week of life was associated with allergic sensitization (adjusted OR 3.26), colic (adjusted OR 1.66), and wheezing (adjusted OR 1.56).

In a study of 44 term infants with a family history of allergy, changes in the fecal microbiota, especially colonization with Ruminococcus gnavus, preceded the onset of allergic symptoms (Gastroenterol. 2018;154[1]:154-67). The same researchers observed similar findings in an animal model.

One potential mechanism by which intestinal dysbiosis causes systemic disease is stimulation of toll-like receptor 4 (TLR4), “which is a receptor on a variety of mucosal cells that senses the presence of a microbial pathogen-associated patterns, particularly those of Gram-negative Enterobacteriaceae,” Dr. Underwood explained. Other potential mechanisms include increased intestinal permeability, an increase in the pH and decreases in short-chain fatty acids within the gut lumen, and a loss of intraluminal hypoxia. “Think of the colon as an anaerobic chamber,” he said. “The colon lumen should be very low in oxygen. It should be dominated by obligate anaerobes.”

Efforts to prevent or treat dysbiosis-related diseases include the use of probiotics and fecal transplantation. A recent Cochrane review of 8,672 patients found “moderate certainty evidence” that probiotics are effective for preventing C. difficile-associated diarrhea. The analysis included 31 randomized, controlled trials of adults who were treated either with a probiotic or with a placebo. When pooled, the risk ratio was 0.40, which represented a significant protection. In addition, a summary of 7 randomized controlled trials and 30 case series suggests that fecal microbial transplantation is superior to vancomycin for adults with recurrent C. difficile colitis (relative risk 0.23) (Aliment Pharmacol Ther. 2017;46[5]:470-93).

To date, the effect of giving probiotics to pregnant women who have a family history of allergy is less clear. One pooled analysis of such studies put the overall risk ratio at 0.74 (Mil Med. 2014;179[6]:580-92). “While I think the jury’s still out on how to best prevent atopic dermatitis in these families, it looks like there is some potential benefit in treating these moms during pregnancy with probiotics and treating the infant during the first few months of life,” Dr. Underwood said. The most effective were mixtures including one or more Lactobacillus species or L. rhamnosus, mixtures including one or more Bifidobacterium species, or B. lactis by itself. The use of probiotics also has been found to prevent necrotizing enterocolitis, sepsis, and death in premature infants (Semin Pediatr Surg. 2018;27[1]:39-46).

Dr. Underwood disclosed that he has received honoraria from Abbott and that he was a member of the scientific review board for Avexegen. He also chaired the data safety and monitoring board for Infant Bacterial Therapeutics and has received support from Evolve BioSystems to perform a clinical trial.

[email protected]

LAKE TAHOE, CALIF. – Strong associations exist between intestinal dysbiosis and a wide variety of gut and systemic diseases, according to Mark A. Underwood, MD.

Doug Brunk/MDedge News

“Antibiotic exposure changes the composition of the intestinal microbiota,” he said at the annual meeting of the Society for Pediatric Dermatology. “That clearly causes both antibiotic-associated diarrhea and Clostridium difficile colitis. The bigger question is, is it possible that intestinal dysbiosis is related to a whole bunch of other systemic diseases? In other words, does an insult during a critical window of development cause changes in the intestinal microbiota that can lead to systemic diseases in the brain, the lung, the liver, or the immune system?”

According Dr. Underwood, a pediatrician who is chief of the division of neonatology at the University of California, Davis, the prevalence of dysbiosis is increasing worldwide, particularly in developed countries, where Bifidobacteria are decreasing and Enterobacteriaceae are increasing. “Those changes are associated with gut permeability and alterations in both local and systemic inflammation, and the risk for a number of diseases, including atopic dermatitis,” he said. Key reasons for the increasing prevalence of dysbiosis, he continued, include the use of antibiotics, cesarean section delivery, formula feeding, changes in hygiene that alter the intestinal biota, the high-fat, high-sugar Western diet, and a loss of vertical and horizontal transmission over generations.

In an effort to evaluate the association between early childhood antibiotic use with allergic diseases in later childhood, Japanese researchers followed 1,200 infants to the age of 5 years (Ann Allergy Asthma Immunol. 2017;119:54-8). They found that antibiotic exposure within the first 2 years of life was associated with an increased risk of asthma (adjusted odds ratio 1.72), allergic rhinitis (adjusted OR 1.65), and atopic dermatitis (adjusted OR 1.40). In a more recent, smaller prospective study, 436 Dutch infants were followed to 1 year of age (Pediatr Allergy Immunol. 2018;29[2]:151-8). The researchers found that antibiotic exposure within the first week of life was associated with allergic sensitization (adjusted OR 3.26), colic (adjusted OR 1.66), and wheezing (adjusted OR 1.56).

In a study of 44 term infants with a family history of allergy, changes in the fecal microbiota, especially colonization with Ruminococcus gnavus, preceded the onset of allergic symptoms (Gastroenterol. 2018;154[1]:154-67). The same researchers observed similar findings in an animal model.

One potential mechanism by which intestinal dysbiosis causes systemic disease is stimulation of toll-like receptor 4 (TLR4), “which is a receptor on a variety of mucosal cells that senses the presence of a microbial pathogen-associated patterns, particularly those of Gram-negative Enterobacteriaceae,” Dr. Underwood explained. Other potential mechanisms include increased intestinal permeability, an increase in the pH and decreases in short-chain fatty acids within the gut lumen, and a loss of intraluminal hypoxia. “Think of the colon as an anaerobic chamber,” he said. “The colon lumen should be very low in oxygen. It should be dominated by obligate anaerobes.”

Efforts to prevent or treat dysbiosis-related diseases include the use of probiotics and fecal transplantation. A recent Cochrane review of 8,672 patients found “moderate certainty evidence” that probiotics are effective for preventing C. difficile-associated diarrhea. The analysis included 31 randomized, controlled trials of adults who were treated either with a probiotic or with a placebo. When pooled, the risk ratio was 0.40, which represented a significant protection. In addition, a summary of 7 randomized controlled trials and 30 case series suggests that fecal microbial transplantation is superior to vancomycin for adults with recurrent C. difficile colitis (relative risk 0.23) (Aliment Pharmacol Ther. 2017;46[5]:470-93).

To date, the effect of giving probiotics to pregnant women who have a family history of allergy is less clear. One pooled analysis of such studies put the overall risk ratio at 0.74 (Mil Med. 2014;179[6]:580-92). “While I think the jury’s still out on how to best prevent atopic dermatitis in these families, it looks like there is some potential benefit in treating these moms during pregnancy with probiotics and treating the infant during the first few months of life,” Dr. Underwood said. The most effective were mixtures including one or more Lactobacillus species or L. rhamnosus, mixtures including one or more Bifidobacterium species, or B. lactis by itself. The use of probiotics also has been found to prevent necrotizing enterocolitis, sepsis, and death in premature infants (Semin Pediatr Surg. 2018;27[1]:39-46).

Dr. Underwood disclosed that he has received honoraria from Abbott and that he was a member of the scientific review board for Avexegen. He also chaired the data safety and monitoring board for Infant Bacterial Therapeutics and has received support from Evolve BioSystems to perform a clinical trial.

[email protected]

CHICAGO – Though research shows that nail fungus occurs in just 0.3% of pediatric patients in the United States, that’s not what Sheila Friedlander, MD, is seeing in her southern California practice, where it’s not uncommon to see children whose nails, toe nails in particular, have fungal involvement.

fotokostic/iStock/Getty Images

“I know I started out telling you fungus isn’t that common in children … but you do need to think about it,” said Dr. Friedlander during a nail-focused session at the annual summer meeting of the American Academy of Dermatology. Dr. Friedlander, professor of dermatology and pediatrics at the University of California San Diego and Rady Children’s Hospital, said that she suspects that more participation in organized sports at a young age may be contributing to the increase, with occlusive sports footwear replacing bare feet or sandals for more hours of the day, presenting more opportunities for toenail trauma in sports such as soccer.

When making the clinical call about a nail problem, bear in mind that the younger the child, the less likely a nail problem is fungal, Dr. Friedlander noted. “Little children are much less likely than older children to have nail fungus. Pediatric nails are thinner, and they are faster growing, with better blood supply to the matrix.”

And if frank onychomadesis is observed, think about the time of year, and ask about recent fevers and rashes, because coxsackievirus may be the culprit. “Be not afraid, and look everywhere if the nail is confusing to you,” she said. In all ages, the diagnosis is primarily clinical, “but I culture them, I ‘PAS’ [periodic acid-Schiff stain] them, too. If you do both, you’ll increase your yield,” Dr. Friedlander said, adding, “the beauty of PAS is you can use it to give your families an answer very soon.”

Once you’ve established that fungus is to blame for a nail problem, there’s a conundrum: There are no Food and Drug Administration-approved therapies, either topical or systemic, for pediatric onychomycosis, Dr. Friedlander said. She, along with coauthors and first author Aditya Gupta, MD, of Mediprobe Research, London, Ontario, Canada, recently published an article reviewing the safety and efficacy of antifungal agents in this age group (Pediatr Dermatol. 2018 Jun 26. doi: 10.1111/pde.13561).

Reviewing information available in the United States and Canada, Dr. Friedlander and her coauthors came up with three topical and four oral options for children, along with recommendations for dosage and duration.

In response to an audience question about the use of topical antifungal treatment for nail involvement, Dr. Friedlander responded, “I think topicals would be great for kids, but it’s for kids where there is no nail matrix involvement. Also, cost is a problem. Nobody will cover it. But some families are willing to do this to avoid systemic therapy,” and if the family budget can accommodate a topical choice, it’s a logical option, she said, noting that partial reimbursement via a coupon system is available from some pharmaceutical companies.

Where appropriate, ciclopirox 8%, efinaconazole 10%, and tavaborole 5% can each be considered. Dr. Friedlander cited one study she coauthored, which reported that 70% of pediatric participants with nonmatrix onychomycosis saw effective treatment, with a 71% mycological cure rate (P = .03), after 32 weeks of treatment with ciclopirox lacquer versus vehicle (Pediatr Dermatol. 2013 May-Jun;30[3]:316-22).

Systemic therapies – which, when studied, have been given at tinea capitis doses – could include griseofulvin, terbinafine, itraconazole, and fluconazole.

In terms of oral options, Dr. Friedlander said, griseofulvin has some practical limitations. While prolonged treatment is required in any case, terbinafine may produce results in about 3 months, whereas griseofulvin may require up to 9 months of therapy. “I always try to use terbinafine … griseofulvin takes a year and a day,” she said.

She also shared some tips to improve pediatric adherence with oral antifungals: “You can tell parents to crush terbinafine tablets and mix in peanut butter or applesauce to improve adherence. Griseofulvin can be flavored by the pharmacy, but volumes are big with griseofulvin, so it’s a challenge to get kids to take it all,” she said.

Dr. Friedlander reported that she had no relevant financial disclosures.

[email protected]



 

CHICAGO – Though research shows that nail fungus occurs in just 0.3% of pediatric patients in the United States, that’s not what Sheila Friedlander, MD, is seeing in her southern California practice, where it’s not uncommon to see children whose nails, toe nails in particular, have fungal involvement.

fotokostic/iStock/Getty Images

“I know I started out telling you fungus isn’t that common in children … but you do need to think about it,” said Dr. Friedlander during a nail-focused session at the annual summer meeting of the American Academy of Dermatology. Dr. Friedlander, professor of dermatology and pediatrics at the University of California San Diego and Rady Children’s Hospital, said that she suspects that more participation in organized sports at a young age may be contributing to the increase, with occlusive sports footwear replacing bare feet or sandals for more hours of the day, presenting more opportunities for toenail trauma in sports such as soccer.

When making the clinical call about a nail problem, bear in mind that the younger the child, the less likely a nail problem is fungal, Dr. Friedlander noted. “Little children are much less likely than older children to have nail fungus. Pediatric nails are thinner, and they are faster growing, with better blood supply to the matrix.”

And if frank onychomadesis is observed, think about the time of year, and ask about recent fevers and rashes, because coxsackievirus may be the culprit. “Be not afraid, and look everywhere if the nail is confusing to you,” she said. In all ages, the diagnosis is primarily clinical, “but I culture them, I ‘PAS’ [periodic acid-Schiff stain] them, too. If you do both, you’ll increase your yield,” Dr. Friedlander said, adding, “the beauty of PAS is you can use it to give your families an answer very soon.”

Once you’ve established that fungus is to blame for a nail problem, there’s a conundrum: There are no Food and Drug Administration-approved therapies, either topical or systemic, for pediatric onychomycosis, Dr. Friedlander said. She, along with coauthors and first author Aditya Gupta, MD, of Mediprobe Research, London, Ontario, Canada, recently published an article reviewing the safety and efficacy of antifungal agents in this age group (Pediatr Dermatol. 2018 Jun 26. doi: 10.1111/pde.13561).

Reviewing information available in the United States and Canada, Dr. Friedlander and her coauthors came up with three topical and four oral options for children, along with recommendations for dosage and duration.

In response to an audience question about the use of topical antifungal treatment for nail involvement, Dr. Friedlander responded, “I think topicals would be great for kids, but it’s for kids where there is no nail matrix involvement. Also, cost is a problem. Nobody will cover it. But some families are willing to do this to avoid systemic therapy,” and if the family budget can accommodate a topical choice, it’s a logical option, she said, noting that partial reimbursement via a coupon system is available from some pharmaceutical companies.

Where appropriate, ciclopirox 8%, efinaconazole 10%, and tavaborole 5% can each be considered. Dr. Friedlander cited one study she coauthored, which reported that 70% of pediatric participants with nonmatrix onychomycosis saw effective treatment, with a 71% mycological cure rate (P = .03), after 32 weeks of treatment with ciclopirox lacquer versus vehicle (Pediatr Dermatol. 2013 May-Jun;30[3]:316-22).

Systemic therapies – which, when studied, have been given at tinea capitis doses – could include griseofulvin, terbinafine, itraconazole, and fluconazole.

In terms of oral options, Dr. Friedlander said, griseofulvin has some practical limitations. While prolonged treatment is required in any case, terbinafine may produce results in about 3 months, whereas griseofulvin may require up to 9 months of therapy. “I always try to use terbinafine … griseofulvin takes a year and a day,” she said.

She also shared some tips to improve pediatric adherence with oral antifungals: “You can tell parents to crush terbinafine tablets and mix in peanut butter or applesauce to improve adherence. Griseofulvin can be flavored by the pharmacy, but volumes are big with griseofulvin, so it’s a challenge to get kids to take it all,” she said.

Dr. Friedlander reported that she had no relevant financial disclosures.

[email protected]



 

CHICAGO – Though research shows that nail fungus occurs in just 0.3% of pediatric patients in the United States, that’s not what Sheila Friedlander, MD, is seeing in her southern California practice, where it’s not uncommon to see children whose nails, toe nails in particular, have fungal involvement.

fotokostic/iStock/Getty Images

“I know I started out telling you fungus isn’t that common in children … but you do need to think about it,” said Dr. Friedlander during a nail-focused session at the annual summer meeting of the American Academy of Dermatology. Dr. Friedlander, professor of dermatology and pediatrics at the University of California San Diego and Rady Children’s Hospital, said that she suspects that more participation in organized sports at a young age may be contributing to the increase, with occlusive sports footwear replacing bare feet or sandals for more hours of the day, presenting more opportunities for toenail trauma in sports such as soccer.

When making the clinical call about a nail problem, bear in mind that the younger the child, the less likely a nail problem is fungal, Dr. Friedlander noted. “Little children are much less likely than older children to have nail fungus. Pediatric nails are thinner, and they are faster growing, with better blood supply to the matrix.”

And if frank onychomadesis is observed, think about the time of year, and ask about recent fevers and rashes, because coxsackievirus may be the culprit. “Be not afraid, and look everywhere if the nail is confusing to you,” she said. In all ages, the diagnosis is primarily clinical, “but I culture them, I ‘PAS’ [periodic acid-Schiff stain] them, too. If you do both, you’ll increase your yield,” Dr. Friedlander said, adding, “the beauty of PAS is you can use it to give your families an answer very soon.”

Once you’ve established that fungus is to blame for a nail problem, there’s a conundrum: There are no Food and Drug Administration-approved therapies, either topical or systemic, for pediatric onychomycosis, Dr. Friedlander said. She, along with coauthors and first author Aditya Gupta, MD, of Mediprobe Research, London, Ontario, Canada, recently published an article reviewing the safety and efficacy of antifungal agents in this age group (Pediatr Dermatol. 2018 Jun 26. doi: 10.1111/pde.13561).

Reviewing information available in the United States and Canada, Dr. Friedlander and her coauthors came up with three topical and four oral options for children, along with recommendations for dosage and duration.

In response to an audience question about the use of topical antifungal treatment for nail involvement, Dr. Friedlander responded, “I think topicals would be great for kids, but it’s for kids where there is no nail matrix involvement. Also, cost is a problem. Nobody will cover it. But some families are willing to do this to avoid systemic therapy,” and if the family budget can accommodate a topical choice, it’s a logical option, she said, noting that partial reimbursement via a coupon system is available from some pharmaceutical companies.

Where appropriate, ciclopirox 8%, efinaconazole 10%, and tavaborole 5% can each be considered. Dr. Friedlander cited one study she coauthored, which reported that 70% of pediatric participants with nonmatrix onychomycosis saw effective treatment, with a 71% mycological cure rate (P = .03), after 32 weeks of treatment with ciclopirox lacquer versus vehicle (Pediatr Dermatol. 2013 May-Jun;30[3]:316-22).

Systemic therapies – which, when studied, have been given at tinea capitis doses – could include griseofulvin, terbinafine, itraconazole, and fluconazole.

In terms of oral options, Dr. Friedlander said, griseofulvin has some practical limitations. While prolonged treatment is required in any case, terbinafine may produce results in about 3 months, whereas griseofulvin may require up to 9 months of therapy. “I always try to use terbinafine … griseofulvin takes a year and a day,” she said.

She also shared some tips to improve pediatric adherence with oral antifungals: “You can tell parents to crush terbinafine tablets and mix in peanut butter or applesauce to improve adherence. Griseofulvin can be flavored by the pharmacy, but volumes are big with griseofulvin, so it’s a challenge to get kids to take it all,” she said.

Dr. Friedlander reported that she had no relevant financial disclosures.

[email protected]



 

Extending oral propranolol treatment up to 12 months of age increased the success rate for high-risk infantile hemangioma, according to results published in Pediatrics.

Previous studies of oral propranol for infantile hemangiomas (IH) have revealed its efficacy, although there is no consensus on the optimal treatment duration. Nonetheless, treatment up to 12 months of age has been proposed if patients don’t respond after 6 months. Infants with high-risk hemangiomas, however, have been excluded from previous studies, authors of the current study explained.

In an open-label study of patients aged 35-150 days the success rate of oral propranolol was 47% after 6 months of treatment. The rate increased to 76% after the initial treatment period, reported Eulalia Baselga, MD, of the department of dermatology at Hospital de la Santa Creu i Sant Pau in Barcelona, and coauthors.

Investigators studied 45 patients from 10 hospitals in Spain and Poland between June 2015 and February 2017. The patients had high-risk IH in the proliferative phase. High-risk hemangiomas were defined as those that were life threatening, at risk for functional impact, disfiguring, or ulcerated nonresponsive to standard wound care measures.

Oral propranolol was administered twice daily at a dosage of 3 mg/kg per day. During the initial treatment period (ITP), patients received propranolol for a minimum of 6 months, and if treatment was not successful, it continued until success or up to 12 months of age.

Patients who achieved success in the initial phase were managed for 3 months with no treatment, and if there was rebound growth, treatment was restarted for up to 6 months at the provider’s discretion.

Treatment was considered a success if the target hemangioma resolved and there was no functional impact. The IH was considered resolved if it disappeared, even if there were minimal telangiectasias, erythema, skin thickening, soft tissue swelling, or the presence of sequelae.

Treatment success was achieved by 21 (47%) patients after 6 months and by 34 (76%) patients by the end of the ITP. Functional impact was determined using the Hemangioma Severity and Hemangioma Dynamic Complication scales. Adverse events, reported by 80% of patients, were resolved by the end of the study and included respiratory syncytial virus bronchiolitis, ulcerated hemangioma, pneumonia and respiratory failure, inguinal hernia, upper respiratory tract infection, dehydration, bronchitis, choking, and thermal burn. Although no patients experienced adverse events that resulted in discontinuation of treatment, 35 events led to temporary discontinuation, primarily due to respiratory events, the authors reported.

The results indicate that “oral propranolol is effective in treating high-risk IH with a favorable safety profile,” the authors concluded.

The study was funded by the Institut de Recherche Pierre Fabre Several authors were employed by or had other relationships with Pierre Fabre. The other authors had no conflicts of interest.

SOURCE: Baselga E et al. Pediatrics. 2018. doi: 10.1542/peds.2017-3866.

Extending oral propranolol treatment up to 12 months of age increased the success rate for high-risk infantile hemangioma, according to results published in Pediatrics.

Previous studies of oral propranol for infantile hemangiomas (IH) have revealed its efficacy, although there is no consensus on the optimal treatment duration. Nonetheless, treatment up to 12 months of age has been proposed if patients don’t respond after 6 months. Infants with high-risk hemangiomas, however, have been excluded from previous studies, authors of the current study explained.

In an open-label study of patients aged 35-150 days the success rate of oral propranolol was 47% after 6 months of treatment. The rate increased to 76% after the initial treatment period, reported Eulalia Baselga, MD, of the department of dermatology at Hospital de la Santa Creu i Sant Pau in Barcelona, and coauthors.

Investigators studied 45 patients from 10 hospitals in Spain and Poland between June 2015 and February 2017. The patients had high-risk IH in the proliferative phase. High-risk hemangiomas were defined as those that were life threatening, at risk for functional impact, disfiguring, or ulcerated nonresponsive to standard wound care measures.

Oral propranolol was administered twice daily at a dosage of 3 mg/kg per day. During the initial treatment period (ITP), patients received propranolol for a minimum of 6 months, and if treatment was not successful, it continued until success or up to 12 months of age.

Patients who achieved success in the initial phase were managed for 3 months with no treatment, and if there was rebound growth, treatment was restarted for up to 6 months at the provider’s discretion.

Treatment was considered a success if the target hemangioma resolved and there was no functional impact. The IH was considered resolved if it disappeared, even if there were minimal telangiectasias, erythema, skin thickening, soft tissue swelling, or the presence of sequelae.

Treatment success was achieved by 21 (47%) patients after 6 months and by 34 (76%) patients by the end of the ITP. Functional impact was determined using the Hemangioma Severity and Hemangioma Dynamic Complication scales. Adverse events, reported by 80% of patients, were resolved by the end of the study and included respiratory syncytial virus bronchiolitis, ulcerated hemangioma, pneumonia and respiratory failure, inguinal hernia, upper respiratory tract infection, dehydration, bronchitis, choking, and thermal burn. Although no patients experienced adverse events that resulted in discontinuation of treatment, 35 events led to temporary discontinuation, primarily due to respiratory events, the authors reported.

The results indicate that “oral propranolol is effective in treating high-risk IH with a favorable safety profile,” the authors concluded.

The study was funded by the Institut de Recherche Pierre Fabre Several authors were employed by or had other relationships with Pierre Fabre. The other authors had no conflicts of interest.

SOURCE: Baselga E et al. Pediatrics. 2018. doi: 10.1542/peds.2017-3866.

Extending oral propranolol treatment up to 12 months of age increased the success rate for high-risk infantile hemangioma, according to results published in Pediatrics.

Previous studies of oral propranol for infantile hemangiomas (IH) have revealed its efficacy, although there is no consensus on the optimal treatment duration. Nonetheless, treatment up to 12 months of age has been proposed if patients don’t respond after 6 months. Infants with high-risk hemangiomas, however, have been excluded from previous studies, authors of the current study explained.

In an open-label study of patients aged 35-150 days the success rate of oral propranolol was 47% after 6 months of treatment. The rate increased to 76% after the initial treatment period, reported Eulalia Baselga, MD, of the department of dermatology at Hospital de la Santa Creu i Sant Pau in Barcelona, and coauthors.

Investigators studied 45 patients from 10 hospitals in Spain and Poland between June 2015 and February 2017. The patients had high-risk IH in the proliferative phase. High-risk hemangiomas were defined as those that were life threatening, at risk for functional impact, disfiguring, or ulcerated nonresponsive to standard wound care measures.

Oral propranolol was administered twice daily at a dosage of 3 mg/kg per day. During the initial treatment period (ITP), patients received propranolol for a minimum of 6 months, and if treatment was not successful, it continued until success or up to 12 months of age.

Patients who achieved success in the initial phase were managed for 3 months with no treatment, and if there was rebound growth, treatment was restarted for up to 6 months at the provider’s discretion.

Treatment was considered a success if the target hemangioma resolved and there was no functional impact. The IH was considered resolved if it disappeared, even if there were minimal telangiectasias, erythema, skin thickening, soft tissue swelling, or the presence of sequelae.

Treatment success was achieved by 21 (47%) patients after 6 months and by 34 (76%) patients by the end of the ITP. Functional impact was determined using the Hemangioma Severity and Hemangioma Dynamic Complication scales. Adverse events, reported by 80% of patients, were resolved by the end of the study and included respiratory syncytial virus bronchiolitis, ulcerated hemangioma, pneumonia and respiratory failure, inguinal hernia, upper respiratory tract infection, dehydration, bronchitis, choking, and thermal burn. Although no patients experienced adverse events that resulted in discontinuation of treatment, 35 events led to temporary discontinuation, primarily due to respiratory events, the authors reported.

The results indicate that “oral propranolol is effective in treating high-risk IH with a favorable safety profile,” the authors concluded.

The study was funded by the Institut de Recherche Pierre Fabre Several authors were employed by or had other relationships with Pierre Fabre. The other authors had no conflicts of interest.

SOURCE: Baselga E et al. Pediatrics. 2018. doi: 10.1542/peds.2017-3866.

A new study offers insight into the development of atopic dermatitis (AD) by linking the severity of the disease to colonization by different Staphylococcus aureus clonal complex (CC) types over time.

The research “suggests that different CC types might harbor different virulence factors and that the patient’s immune system needs to adjust to this,” concluded the authors of the study, published in the British Journal of Dermatology.

There is a strong association between disease severity and colonization with S. aureus in patients with AD, and as many as 90% are colonized with the microbe but, the authors pointed out, it’s not entirely clear how S. aureus affects the development of AD.

They added that there’s been little research into the possible effects of changes in S. aureus clonal types over time. Still, “new studies indicate that specific clonal types could be linked to specific host phenotypes, illustrating that host-microbe interactions might be important for colonization of AD skin,” they said.

The authors, led by Maja-Lisa Clausen, MD, of the department of dermatology at the University of Copenhagen, tracked 63 adult patients with AD at Denmark’s Bispebjerg Hospital from 2013-2015 to a 2016-2017 follow-up period. Their mean age was 36 years.

They analyzed bacterial swabs taken from the nose, lesional skin, and nonlesional skin. Of the 63 participants, 47 (75%) were colonized with S. aureus in at least one location when the study began, and 27 of those (57%) were still colonized at follow-up. Of the 16 patients not colonized at baseline, 7 patients (44%) had become colonized by follow-up.

Of the 27 patients who were colonized at both time points, 14 (52%) had no change in CC type.

Those who were colonized at follow-up in at least one of the three sites sampled had more severe disease, with a mean SCORAD – or disease severity score – of 37, compared with those who were not colonized at that time, with a mean SCORAD of 28 (P = .067).

There was a much bigger gap in mean SCORAD score between the 14 patients who had the same CC type at both baseline and follow-up (a mean score of 30), compared with the 11 patients with different CC types at follow-up (a mean score of 47), a statistically significant difference (P = .03). Mean severity scores went up in those who changed CC types and down in those whose CC types remained the same.

The findings “illustrate that colonization changes over time, and also probably reflect the relapsing course of this disease, as colonization likely occurs in relation to worsening of the eczema,” the study authors wrote. They cautioned that “other factors should be taken into considerations as these are known to influence AD severity, including change in treatment regimens, climate, or other disease.”

Novo Nordisk Foundation funded the study. No relevant disclosures were reported.

SOURCE: Clausen, ML et al. Br J Dermatol. 2018 Aug 2. doi: 10.1111/bjd.17033.

A new study offers insight into the development of atopic dermatitis (AD) by linking the severity of the disease to colonization by different Staphylococcus aureus clonal complex (CC) types over time.

The research “suggests that different CC types might harbor different virulence factors and that the patient’s immune system needs to adjust to this,” concluded the authors of the study, published in the British Journal of Dermatology.

There is a strong association between disease severity and colonization with S. aureus in patients with AD, and as many as 90% are colonized with the microbe but, the authors pointed out, it’s not entirely clear how S. aureus affects the development of AD.

They added that there’s been little research into the possible effects of changes in S. aureus clonal types over time. Still, “new studies indicate that specific clonal types could be linked to specific host phenotypes, illustrating that host-microbe interactions might be important for colonization of AD skin,” they said.

The authors, led by Maja-Lisa Clausen, MD, of the department of dermatology at the University of Copenhagen, tracked 63 adult patients with AD at Denmark’s Bispebjerg Hospital from 2013-2015 to a 2016-2017 follow-up period. Their mean age was 36 years.

They analyzed bacterial swabs taken from the nose, lesional skin, and nonlesional skin. Of the 63 participants, 47 (75%) were colonized with S. aureus in at least one location when the study began, and 27 of those (57%) were still colonized at follow-up. Of the 16 patients not colonized at baseline, 7 patients (44%) had become colonized by follow-up.

Of the 27 patients who were colonized at both time points, 14 (52%) had no change in CC type.

Those who were colonized at follow-up in at least one of the three sites sampled had more severe disease, with a mean SCORAD – or disease severity score – of 37, compared with those who were not colonized at that time, with a mean SCORAD of 28 (P = .067).

There was a much bigger gap in mean SCORAD score between the 14 patients who had the same CC type at both baseline and follow-up (a mean score of 30), compared with the 11 patients with different CC types at follow-up (a mean score of 47), a statistically significant difference (P = .03). Mean severity scores went up in those who changed CC types and down in those whose CC types remained the same.

The findings “illustrate that colonization changes over time, and also probably reflect the relapsing course of this disease, as colonization likely occurs in relation to worsening of the eczema,” the study authors wrote. They cautioned that “other factors should be taken into considerations as these are known to influence AD severity, including change in treatment regimens, climate, or other disease.”

Novo Nordisk Foundation funded the study. No relevant disclosures were reported.

SOURCE: Clausen, ML et al. Br J Dermatol. 2018 Aug 2. doi: 10.1111/bjd.17033.

A new study offers insight into the development of atopic dermatitis (AD) by linking the severity of the disease to colonization by different Staphylococcus aureus clonal complex (CC) types over time.

The research “suggests that different CC types might harbor different virulence factors and that the patient’s immune system needs to adjust to this,” concluded the authors of the study, published in the British Journal of Dermatology.

There is a strong association between disease severity and colonization with S. aureus in patients with AD, and as many as 90% are colonized with the microbe but, the authors pointed out, it’s not entirely clear how S. aureus affects the development of AD.

They added that there’s been little research into the possible effects of changes in S. aureus clonal types over time. Still, “new studies indicate that specific clonal types could be linked to specific host phenotypes, illustrating that host-microbe interactions might be important for colonization of AD skin,” they said.

The authors, led by Maja-Lisa Clausen, MD, of the department of dermatology at the University of Copenhagen, tracked 63 adult patients with AD at Denmark’s Bispebjerg Hospital from 2013-2015 to a 2016-2017 follow-up period. Their mean age was 36 years.

They analyzed bacterial swabs taken from the nose, lesional skin, and nonlesional skin. Of the 63 participants, 47 (75%) were colonized with S. aureus in at least one location when the study began, and 27 of those (57%) were still colonized at follow-up. Of the 16 patients not colonized at baseline, 7 patients (44%) had become colonized by follow-up.

Of the 27 patients who were colonized at both time points, 14 (52%) had no change in CC type.

Those who were colonized at follow-up in at least one of the three sites sampled had more severe disease, with a mean SCORAD – or disease severity score – of 37, compared with those who were not colonized at that time, with a mean SCORAD of 28 (P = .067).

There was a much bigger gap in mean SCORAD score between the 14 patients who had the same CC type at both baseline and follow-up (a mean score of 30), compared with the 11 patients with different CC types at follow-up (a mean score of 47), a statistically significant difference (P = .03). Mean severity scores went up in those who changed CC types and down in those whose CC types remained the same.

The findings “illustrate that colonization changes over time, and also probably reflect the relapsing course of this disease, as colonization likely occurs in relation to worsening of the eczema,” the study authors wrote. They cautioned that “other factors should be taken into considerations as these are known to influence AD severity, including change in treatment regimens, climate, or other disease.”

Novo Nordisk Foundation funded the study. No relevant disclosures were reported.

SOURCE: Clausen, ML et al. Br J Dermatol. 2018 Aug 2. doi: 10.1111/bjd.17033.

The infliximab-dyyb biosimilar was only moderately less expensive than the originator infliximab product Remicade in the United States in 2017 under Medicare Part D, an analysis shows.

Thinkstock Photos

Infliximab-dyyb (Inflectra) cost 18% less than infliximab, with an annual cost exceeding $14,000 in an analysis published online Sept. 4 in JAMA by Jinoos Yazdany, MD, of the division of rheumatology at the University of California, San Francisco, and her coauthors.

However, “without biosimilar gap discounts in 2017, beneficiaries would have paid more than $5,100 for infliximab-dyyb, or nearly $1,700 more in projected out-of-pocket costs than infliximab,” Dr. Yazdany and her coauthors wrote.

Biologics represent only 2% of U.S. prescriptions but made up 38% of drug spending in 2015 and accounted for 70% of growth in drug spending from 2010 to 2015, according to Dr. Yazdany and her colleagues.

Biologics for rheumatoid arthritis (RA) cost more than $14,000 per year, and in 2015, 3 were among the top 15 drugs in terms of Medicare expenditures, they added.

While biosimilars are supposed to increase competition and lower prices, it’s an open question whether they actually reduce out-of-pocket expenditures for the 43 million individuals with drug benefits under Medicare Part D.

That uncertainty is due in part to the complex cost-sharing design of Part D, which includes an initial deductible, a coverage phase, a coverage gap, and catastrophic coverage.

In 2017, the plan included an initial $400 deductible, followed by the coverage phase, in which the patient paid 25% of drug costs. In the coverage gap, which started at $3,700 in total drug costs, the patient’s share of drug costs increased to 40% for biologics, and 51% for biosimilars. In the catastrophic coverage phase, triggered when out-of-pocket costs exceeded $4,950, the patient was responsible for 5% of drug costs.

“Currently, beneficiaries receive a 50% manufacturer discount during the gap for brand-name drugs and biologics, but not for biosimilars,” Dr. Yazdany and her coauthors said in the report.

To evaluate cost-sharing for infliximab-dyyb, which in 2016 became the first available RA biosimilar, the authors analyzed data for all Part D plans in the June 2017 Medicare Prescription Drug Plan Formulary, Pharmacy Network, and Pricing Information Files.

Out of 2,547 plans, only 10% covered the biosimilar, while 96% covered infliximab, the authors found.

The mean total cost of infliximab-dyyb was “modestly lower,” they reported. Eight-week prescription costs were $2,185 for infliximab-dyyb versus $2,667 for infliximab, while annual costs were $14,202 for the biosimilar and $17,335 for infliximab.

However, all plans required coinsurance cost-sharing for the biosimilar, they said. The mean coinsurance rate was 26.6% of the total drug cost for the biosimilar and 28.4% for infliximab.

For beneficiaries, projected annual out-of-pocket costs without the gap discount were $5,118 for infliximab-dyyb and $3,432 for infliximab, the researchers said.

Biosimilar gap discounts are set to start in 2019, according to the authors. However, they said those discounts may not substantially reduce out-of-pocket costs for Part D beneficiaries because of the high price of infliximab-dyyb and a coinsurance cost-sharing rate similar to that of infliximab.

“Further policies are needed to address affordability and access to specialty drugs,” Dr. Yazdany and her coauthors concluded.

The study was funded in part by grants from the Agency for Healthcare Research and Quality, the Robert L. Kroc Endowed Chair in Rheumatic and Connective Tissue Diseases, and other sources. Dr. Yazdany reported receiving an independent investigator award from Pfizer. Her coauthors reported no conflict of interest disclosures.

SOURCE: Yazdany J et al. JAMA. 2018;320(9):931-3.

The infliximab-dyyb biosimilar was only moderately less expensive than the originator infliximab product Remicade in the United States in 2017 under Medicare Part D, an analysis shows.

Thinkstock Photos

Infliximab-dyyb (Inflectra) cost 18% less than infliximab, with an annual cost exceeding $14,000 in an analysis published online Sept. 4 in JAMA by Jinoos Yazdany, MD, of the division of rheumatology at the University of California, San Francisco, and her coauthors.

However, “without biosimilar gap discounts in 2017, beneficiaries would have paid more than $5,100 for infliximab-dyyb, or nearly $1,700 more in projected out-of-pocket costs than infliximab,” Dr. Yazdany and her coauthors wrote.

Biologics represent only 2% of U.S. prescriptions but made up 38% of drug spending in 2015 and accounted for 70% of growth in drug spending from 2010 to 2015, according to Dr. Yazdany and her colleagues.

Biologics for rheumatoid arthritis (RA) cost more than $14,000 per year, and in 2015, 3 were among the top 15 drugs in terms of Medicare expenditures, they added.

While biosimilars are supposed to increase competition and lower prices, it’s an open question whether they actually reduce out-of-pocket expenditures for the 43 million individuals with drug benefits under Medicare Part D.

That uncertainty is due in part to the complex cost-sharing design of Part D, which includes an initial deductible, a coverage phase, a coverage gap, and catastrophic coverage.

In 2017, the plan included an initial $400 deductible, followed by the coverage phase, in which the patient paid 25% of drug costs. In the coverage gap, which started at $3,700 in total drug costs, the patient’s share of drug costs increased to 40% for biologics, and 51% for biosimilars. In the catastrophic coverage phase, triggered when out-of-pocket costs exceeded $4,950, the patient was responsible for 5% of drug costs.

“Currently, beneficiaries receive a 50% manufacturer discount during the gap for brand-name drugs and biologics, but not for biosimilars,” Dr. Yazdany and her coauthors said in the report.

To evaluate cost-sharing for infliximab-dyyb, which in 2016 became the first available RA biosimilar, the authors analyzed data for all Part D plans in the June 2017 Medicare Prescription Drug Plan Formulary, Pharmacy Network, and Pricing Information Files.

Out of 2,547 plans, only 10% covered the biosimilar, while 96% covered infliximab, the authors found.

The mean total cost of infliximab-dyyb was “modestly lower,” they reported. Eight-week prescription costs were $2,185 for infliximab-dyyb versus $2,667 for infliximab, while annual costs were $14,202 for the biosimilar and $17,335 for infliximab.

However, all plans required coinsurance cost-sharing for the biosimilar, they said. The mean coinsurance rate was 26.6% of the total drug cost for the biosimilar and 28.4% for infliximab.

For beneficiaries, projected annual out-of-pocket costs without the gap discount were $5,118 for infliximab-dyyb and $3,432 for infliximab, the researchers said.

Biosimilar gap discounts are set to start in 2019, according to the authors. However, they said those discounts may not substantially reduce out-of-pocket costs for Part D beneficiaries because of the high price of infliximab-dyyb and a coinsurance cost-sharing rate similar to that of infliximab.

“Further policies are needed to address affordability and access to specialty drugs,” Dr. Yazdany and her coauthors concluded.

The study was funded in part by grants from the Agency for Healthcare Research and Quality, the Robert L. Kroc Endowed Chair in Rheumatic and Connective Tissue Diseases, and other sources. Dr. Yazdany reported receiving an independent investigator award from Pfizer. Her coauthors reported no conflict of interest disclosures.

SOURCE: Yazdany J et al. JAMA. 2018;320(9):931-3.

The infliximab-dyyb biosimilar was only moderately less expensive than the originator infliximab product Remicade in the United States in 2017 under Medicare Part D, an analysis shows.

Thinkstock Photos

Infliximab-dyyb (Inflectra) cost 18% less than infliximab, with an annual cost exceeding $14,000 in an analysis published online Sept. 4 in JAMA by Jinoos Yazdany, MD, of the division of rheumatology at the University of California, San Francisco, and her coauthors.

However, “without biosimilar gap discounts in 2017, beneficiaries would have paid more than $5,100 for infliximab-dyyb, or nearly $1,700 more in projected out-of-pocket costs than infliximab,” Dr. Yazdany and her coauthors wrote.

Biologics represent only 2% of U.S. prescriptions but made up 38% of drug spending in 2015 and accounted for 70% of growth in drug spending from 2010 to 2015, according to Dr. Yazdany and her colleagues.

Biologics for rheumatoid arthritis (RA) cost more than $14,000 per year, and in 2015, 3 were among the top 15 drugs in terms of Medicare expenditures, they added.

While biosimilars are supposed to increase competition and lower prices, it’s an open question whether they actually reduce out-of-pocket expenditures for the 43 million individuals with drug benefits under Medicare Part D.

That uncertainty is due in part to the complex cost-sharing design of Part D, which includes an initial deductible, a coverage phase, a coverage gap, and catastrophic coverage.

In 2017, the plan included an initial $400 deductible, followed by the coverage phase, in which the patient paid 25% of drug costs. In the coverage gap, which started at $3,700 in total drug costs, the patient’s share of drug costs increased to 40% for biologics, and 51% for biosimilars. In the catastrophic coverage phase, triggered when out-of-pocket costs exceeded $4,950, the patient was responsible for 5% of drug costs.

“Currently, beneficiaries receive a 50% manufacturer discount during the gap for brand-name drugs and biologics, but not for biosimilars,” Dr. Yazdany and her coauthors said in the report.

To evaluate cost-sharing for infliximab-dyyb, which in 2016 became the first available RA biosimilar, the authors analyzed data for all Part D plans in the June 2017 Medicare Prescription Drug Plan Formulary, Pharmacy Network, and Pricing Information Files.

Out of 2,547 plans, only 10% covered the biosimilar, while 96% covered infliximab, the authors found.

The mean total cost of infliximab-dyyb was “modestly lower,” they reported. Eight-week prescription costs were $2,185 for infliximab-dyyb versus $2,667 for infliximab, while annual costs were $14,202 for the biosimilar and $17,335 for infliximab.

However, all plans required coinsurance cost-sharing for the biosimilar, they said. The mean coinsurance rate was 26.6% of the total drug cost for the biosimilar and 28.4% for infliximab.

For beneficiaries, projected annual out-of-pocket costs without the gap discount were $5,118 for infliximab-dyyb and $3,432 for infliximab, the researchers said.

Biosimilar gap discounts are set to start in 2019, according to the authors. However, they said those discounts may not substantially reduce out-of-pocket costs for Part D beneficiaries because of the high price of infliximab-dyyb and a coinsurance cost-sharing rate similar to that of infliximab.

“Further policies are needed to address affordability and access to specialty drugs,” Dr. Yazdany and her coauthors concluded.

The study was funded in part by grants from the Agency for Healthcare Research and Quality, the Robert L. Kroc Endowed Chair in Rheumatic and Connective Tissue Diseases, and other sources. Dr. Yazdany reported receiving an independent investigator award from Pfizer. Her coauthors reported no conflict of interest disclosures.

SOURCE: Yazdany J et al. JAMA. 2018;320(9):931-3.

The FP suspected melanoma and recommended immediate biopsy. The patient consented, and the physician performed a broad shave biopsy that included most of the pigmented lesion. Pathology revealed a lentigo maligna melanoma with a Breslow depth of 0.3 mm.

Lentigo maligna melanoma occurs in 4% to 15% of cutaneous melanomas. It’s similar to the superficial spreading type and appears as a flat (or mildly elevated) mottled tan, brown, or dark-brown discoloration. This type of melanoma is found most often in the elderly and arises on chronically sun-exposed, damaged skin on the face, ears, arms, and upper trunk. The average age of onset is 65 years and it grows slowly over 5 to 20 years.

When melanoma is suspected, it’s best to provide a specimen with adequate depth and breadth. Unfortunately, choosing the darkest and most raised area does not guarantee the correct diagnosis in a partial biopsy.

In cases of suspected lentigo maligna melanoma on the face, a broad shave provides a better sample than a punch biopsy. The broad shave biopsy (also known as saucerization) is best performed with a razor blade. (See the Watch & Learn video on “Shave biopsy.”)

In this case, the relatively small size of the lesion and the high risk for melanoma would make an elliptical excisional biopsy a good alternative. The saucerization has the advantage of being quick and easy to perform so that it can be done on the day that the melanoma is suspected.

This patient was referred for Mohs surgery for complete excision and repair. A sentinel lymph node biopsy was not indicated, and the prognosis for this stage Ia melanoma was relatively good.

‌

Photos and text for Photo Rounds Friday courtesy of Richard P. Usatine, MD. This case was adapted from: Mayeaux, EJ, Usatine, R. Lentigo maligna. In: Usatine R, Smith M, Mayeaux EJ, et al. Color Atlas of Family Medicine. 2nd ed. New York, NY: McGraw-Hill; 2013:981-984.

To learn more about the Color Atlas of Family Medicine, see: www.amazon.com/Color-Family-Medicine-Richard-Usatine/dp/0071769641/.

You can now get the second edition of the Color Atlas of Family Medicine as an app by clicking on this link: usatinemedia.com.

The FP suspected melanoma and recommended immediate biopsy. The patient consented, and the physician performed a broad shave biopsy that included most of the pigmented lesion. Pathology revealed a lentigo maligna melanoma with a Breslow depth of 0.3 mm.

Lentigo maligna melanoma occurs in 4% to 15% of cutaneous melanomas. It’s similar to the superficial spreading type and appears as a flat (or mildly elevated) mottled tan, brown, or dark-brown discoloration. This type of melanoma is found most often in the elderly and arises on chronically sun-exposed, damaged skin on the face, ears, arms, and upper trunk. The average age of onset is 65 years and it grows slowly over 5 to 20 years.

When melanoma is suspected, it’s best to provide a specimen with adequate depth and breadth. Unfortunately, choosing the darkest and most raised area does not guarantee the correct diagnosis in a partial biopsy.

In cases of suspected lentigo maligna melanoma on the face, a broad shave provides a better sample than a punch biopsy. The broad shave biopsy (also known as saucerization) is best performed with a razor blade. (See the Watch & Learn video on “Shave biopsy.”)

In this case, the relatively small size of the lesion and the high risk for melanoma would make an elliptical excisional biopsy a good alternative. The saucerization has the advantage of being quick and easy to perform so that it can be done on the day that the melanoma is suspected.

This patient was referred for Mohs surgery for complete excision and repair. A sentinel lymph node biopsy was not indicated, and the prognosis for this stage Ia melanoma was relatively good.

‌

Photos and text for Photo Rounds Friday courtesy of Richard P. Usatine, MD. This case was adapted from: Mayeaux, EJ, Usatine, R. Lentigo maligna. In: Usatine R, Smith M, Mayeaux EJ, et al. Color Atlas of Family Medicine. 2nd ed. New York, NY: McGraw-Hill; 2013:981-984.

To learn more about the Color Atlas of Family Medicine, see: www.amazon.com/Color-Family-Medicine-Richard-Usatine/dp/0071769641/.

You can now get the second edition of the Color Atlas of Family Medicine as an app by clicking on this link: usatinemedia.com.

The FP suspected melanoma and recommended immediate biopsy. The patient consented, and the physician performed a broad shave biopsy that included most of the pigmented lesion. Pathology revealed a lentigo maligna melanoma with a Breslow depth of 0.3 mm.

Lentigo maligna melanoma occurs in 4% to 15% of cutaneous melanomas. It’s similar to the superficial spreading type and appears as a flat (or mildly elevated) mottled tan, brown, or dark-brown discoloration. This type of melanoma is found most often in the elderly and arises on chronically sun-exposed, damaged skin on the face, ears, arms, and upper trunk. The average age of onset is 65 years and it grows slowly over 5 to 20 years.

When melanoma is suspected, it’s best to provide a specimen with adequate depth and breadth. Unfortunately, choosing the darkest and most raised area does not guarantee the correct diagnosis in a partial biopsy.

In cases of suspected lentigo maligna melanoma on the face, a broad shave provides a better sample than a punch biopsy. The broad shave biopsy (also known as saucerization) is best performed with a razor blade. (See the Watch & Learn video on “Shave biopsy.”)

In this case, the relatively small size of the lesion and the high risk for melanoma would make an elliptical excisional biopsy a good alternative. The saucerization has the advantage of being quick and easy to perform so that it can be done on the day that the melanoma is suspected.

This patient was referred for Mohs surgery for complete excision and repair. A sentinel lymph node biopsy was not indicated, and the prognosis for this stage Ia melanoma was relatively good.

‌

Photos and text for Photo Rounds Friday courtesy of Richard P. Usatine, MD. This case was adapted from: Mayeaux, EJ, Usatine, R. Lentigo maligna. In: Usatine R, Smith M, Mayeaux EJ, et al. Color Atlas of Family Medicine. 2nd ed. New York, NY: McGraw-Hill; 2013:981-984.

To learn more about the Color Atlas of Family Medicine, see: www.amazon.com/Color-Family-Medicine-Richard-Usatine/dp/0071769641/.

You can now get the second edition of the Color Atlas of Family Medicine as an app by clicking on this link: usatinemedia.com.

IN THIS ARTICLE

• Diagnosis
• Management
• Outcome for the case patient

An 18-year-old woman presents to urgent care with a one-day history of sudden-onset sore throat, chills, malaise, and fever (102.5°F). On physical examination, the tonsils and pharynx are erythematous, and anterior cervical lymph nodes are tender on palpation. A rapid strep test is negative. The patient is instructed to use throat lozenges and take ibuprofen (400 mg every 8 h) as needed for pain.

On day 2, the patient’s fever resolves, but a painful rash develops on her palms and soles. Clinical examination reveals multiple erythematous plaques on the hands and feet (see Figure 1). The patient is diagnosed with hand-foot-and-mouth disease (HFMD).

DISCUSSION

HFMD is caused by enteroviruses, most commonly coxsackievirus A16 (CV-A16) or enterovirus 71 (EV71).¹ However, a newly recognized strain, CV-A6, has caused worldwide outbreaks of HFMD in both children and adults. Although less common than CV-A16 or EV71, CV-A6 is associated with a more severe disease course.¹ The CV-A6 strain was first identified in Finland in 2008 during a major outbreak of HFMD; it reached the United States in 2011.^2,3 Accurate statistics on the prevalence of CV-A6 in the US are difficult to obtain because HFMD is not a reportable condition.

Clinical presentation

HFMD typically manifests with painful oral lesions, with or without a macular, maculopapular, or vesicular exanthema. If a fever is present, it is usually below 101°F. The oral lesions are typically benign and manifest as erythematous macules that progress to vesicles with an erythematous halo. These lesions tend to be painful and may interfere with eating or drinking. Signs and symptoms associated with the more virulent form, CV-A6, may include

• Higher fever
• Wider distribution of lesions
• More extensive skin involvement
• Longer duration
• Palmar and plantar desquamation
• Nail dystrophy.^4,5

Laboratory diagnosis

Most symptomatic enterovirus infections are diagnosed based on clinical findings alone, reducing the need for laboratory testing. Laboratory confirmation may be warranted for more severe infections and during outbreaks. Molecular methods, such as reverse transcriptase polymerase chain reaction, are typically used for identifying enteroviruses, as they are rapid, sensitive, and widely available in hospital and commercial laboratories.⁶ Viral culture methods are labor-intensive, expensive, and reserved for typing the isolate. Serology is not useful in the diagnosis of acute infection.

Continue to: Differential diagnosis

The differential diagnosis of HFMD includes conditions with oral lesions and maculopapular, vesicular lesions involving the palms and/or soles, as well as erythroderma.

Oral lesions. Aphthous ulcers are shallow, painful oral lesions not accompanied by skin rashes. Herpes gingivostomatitis, caused by herpes simplex virus (HSV), is often preceded by a prodrome of fever. The associated lesions manifest as vesicular clusters on a red base that evolve into large, painful ulcers. HSV mouth lesions can populate the gingivae, pharynx, hard palate, lips, and perioral skin. Skin lesions may occur unilaterally.

Rashes involving palms and soles. A number of conditions manifest with skin lesions similar to those of HFMD. An autoeczematization reaction consisting of a pruritic, papulovesicular eruption secondary to dermatophyte infection (eg, tinea pedis, tinea manuum, tinea cruris, tinea corporis, tinea capitis) should be ruled out. This type of reaction is thought to be a delayed hypersensitivity response to fungal antigens. Pruritus and the absence of mouth sores distinguishes this reaction from HFMD.⁷

Secondary syphilis can manifest with a short-lived macular rash involving the palm and soles, as well as oral mucous patches and generalized lymphad­enopathy. Syphilis testing, including rapid plasma reagin or Venereal Disease Research Laboratory test with fluorescent treponemal antibody absorption, can rule out this diagnosis.

Erythema multiforme, which is more common in young adults, is characterized by target lesions on the palms and soles and erosions and/or bullae in the mouth and mucous membranes. It is usually preceded by a trigger, such as HSV infection.

Continue to: Erythroderma

Erythroderma. In addition to a rash, erythema multiforme can cause desquamation later in the disease course. Toxic shock syndrome (TSS), a life-threatening condition caused by Streptococcus or Staphylococcus, has an abrupt onset that is associated with high fever and hypotension. TSS causes a sunburn-like rash on the palms and soles that desquamates weeks after onset. Scarlet fever, caused by group A Streptococcus, can cause an erythematous rash with desquamation in children and adolescents. Scalded skin syndrome is a desquamative condition caused by Staphylococcus that occurs primarily in infants and young children.

Management

There is no specific antiviral treatment for HFMD, and thus management is mainly supportive. Fever and pain can be managed with ibuprofen or acetaminophen. Children who are unable to maintain oral hydration may require hospitalization for IV fluids.

Prevention of HFMD requires strict hand hygiene—washing with soap and water—as well as thoroughly cleaning and disinfecting surfaces that come in contact with infected oral secretions or feces.⁸

OUTCOME FOR THE CASE PATIENT

The patient was discharged and instructed to take ibuprofen as needed.

About three weeks later, the patient’s palms and soles began to peel. Clinical examination at follow-up revealed painful, diffuse, scaly desquamation of the hands and feet (see Figure 2). The patient also experienced loosening and shedding of the proximal nails (see Figure 3). She was diagnosed with postviral shedding.

Continue to: About eight weeks after the desquamatory rash manifested...

About eight weeks after the desquamatory rash manifested, complete resolution was seen. The patient experienced continued onychomadesis three months after the initial presentation.

CONCLUSION

Clinicians should be mindful of the increasing incidence of HFMD in the adult population, since it may mimic other disease states. The extent and chronicity of this patient’s clinical manifestations were unusual and may have been caused by CV-A6.

IN THIS ARTICLE

• Diagnosis
• Management
• Outcome for the case patient

An 18-year-old woman presents to urgent care with a one-day history of sudden-onset sore throat, chills, malaise, and fever (102.5°F). On physical examination, the tonsils and pharynx are erythematous, and anterior cervical lymph nodes are tender on palpation. A rapid strep test is negative. The patient is instructed to use throat lozenges and take ibuprofen (400 mg every 8 h) as needed for pain.

On day 2, the patient’s fever resolves, but a painful rash develops on her palms and soles. Clinical examination reveals multiple erythematous plaques on the hands and feet (see Figure 1). The patient is diagnosed with hand-foot-and-mouth disease (HFMD).

DISCUSSION

HFMD is caused by enteroviruses, most commonly coxsackievirus A16 (CV-A16) or enterovirus 71 (EV71).¹ However, a newly recognized strain, CV-A6, has caused worldwide outbreaks of HFMD in both children and adults. Although less common than CV-A16 or EV71, CV-A6 is associated with a more severe disease course.¹ The CV-A6 strain was first identified in Finland in 2008 during a major outbreak of HFMD; it reached the United States in 2011.^2,3 Accurate statistics on the prevalence of CV-A6 in the US are difficult to obtain because HFMD is not a reportable condition.

Clinical presentation

HFMD typically manifests with painful oral lesions, with or without a macular, maculopapular, or vesicular exanthema. If a fever is present, it is usually below 101°F. The oral lesions are typically benign and manifest as erythematous macules that progress to vesicles with an erythematous halo. These lesions tend to be painful and may interfere with eating or drinking. Signs and symptoms associated with the more virulent form, CV-A6, may include

• Higher fever
• Wider distribution of lesions
• More extensive skin involvement
• Longer duration
• Palmar and plantar desquamation
• Nail dystrophy.^4,5

Laboratory diagnosis

Most symptomatic enterovirus infections are diagnosed based on clinical findings alone, reducing the need for laboratory testing. Laboratory confirmation may be warranted for more severe infections and during outbreaks. Molecular methods, such as reverse transcriptase polymerase chain reaction, are typically used for identifying enteroviruses, as they are rapid, sensitive, and widely available in hospital and commercial laboratories.⁶ Viral culture methods are labor-intensive, expensive, and reserved for typing the isolate. Serology is not useful in the diagnosis of acute infection.

Continue to: Differential diagnosis

The differential diagnosis of HFMD includes conditions with oral lesions and maculopapular, vesicular lesions involving the palms and/or soles, as well as erythroderma.

Oral lesions. Aphthous ulcers are shallow, painful oral lesions not accompanied by skin rashes. Herpes gingivostomatitis, caused by herpes simplex virus (HSV), is often preceded by a prodrome of fever. The associated lesions manifest as vesicular clusters on a red base that evolve into large, painful ulcers. HSV mouth lesions can populate the gingivae, pharynx, hard palate, lips, and perioral skin. Skin lesions may occur unilaterally.

Rashes involving palms and soles. A number of conditions manifest with skin lesions similar to those of HFMD. An autoeczematization reaction consisting of a pruritic, papulovesicular eruption secondary to dermatophyte infection (eg, tinea pedis, tinea manuum, tinea cruris, tinea corporis, tinea capitis) should be ruled out. This type of reaction is thought to be a delayed hypersensitivity response to fungal antigens. Pruritus and the absence of mouth sores distinguishes this reaction from HFMD.⁷

Secondary syphilis can manifest with a short-lived macular rash involving the palm and soles, as well as oral mucous patches and generalized lymphad­enopathy. Syphilis testing, including rapid plasma reagin or Venereal Disease Research Laboratory test with fluorescent treponemal antibody absorption, can rule out this diagnosis.

Erythema multiforme, which is more common in young adults, is characterized by target lesions on the palms and soles and erosions and/or bullae in the mouth and mucous membranes. It is usually preceded by a trigger, such as HSV infection.

Continue to: Erythroderma

Erythroderma. In addition to a rash, erythema multiforme can cause desquamation later in the disease course. Toxic shock syndrome (TSS), a life-threatening condition caused by Streptococcus or Staphylococcus, has an abrupt onset that is associated with high fever and hypotension. TSS causes a sunburn-like rash on the palms and soles that desquamates weeks after onset. Scarlet fever, caused by group A Streptococcus, can cause an erythematous rash with desquamation in children and adolescents. Scalded skin syndrome is a desquamative condition caused by Staphylococcus that occurs primarily in infants and young children.

Management

There is no specific antiviral treatment for HFMD, and thus management is mainly supportive. Fever and pain can be managed with ibuprofen or acetaminophen. Children who are unable to maintain oral hydration may require hospitalization for IV fluids.

Prevention of HFMD requires strict hand hygiene—washing with soap and water—as well as thoroughly cleaning and disinfecting surfaces that come in contact with infected oral secretions or feces.⁸

OUTCOME FOR THE CASE PATIENT

The patient was discharged and instructed to take ibuprofen as needed.

About three weeks later, the patient’s palms and soles began to peel. Clinical examination at follow-up revealed painful, diffuse, scaly desquamation of the hands and feet (see Figure 2). The patient also experienced loosening and shedding of the proximal nails (see Figure 3). She was diagnosed with postviral shedding.

Continue to: About eight weeks after the desquamatory rash manifested...

About eight weeks after the desquamatory rash manifested, complete resolution was seen. The patient experienced continued onychomadesis three months after the initial presentation.

CONCLUSION

Clinicians should be mindful of the increasing incidence of HFMD in the adult population, since it may mimic other disease states. The extent and chronicity of this patient’s clinical manifestations were unusual and may have been caused by CV-A6.

IN THIS ARTICLE

• Diagnosis
• Management
• Outcome for the case patient

An 18-year-old woman presents to urgent care with a one-day history of sudden-onset sore throat, chills, malaise, and fever (102.5°F). On physical examination, the tonsils and pharynx are erythematous, and anterior cervical lymph nodes are tender on palpation. A rapid strep test is negative. The patient is instructed to use throat lozenges and take ibuprofen (400 mg every 8 h) as needed for pain.

On day 2, the patient’s fever resolves, but a painful rash develops on her palms and soles. Clinical examination reveals multiple erythematous plaques on the hands and feet (see Figure 1). The patient is diagnosed with hand-foot-and-mouth disease (HFMD).

DISCUSSION

HFMD is caused by enteroviruses, most commonly coxsackievirus A16 (CV-A16) or enterovirus 71 (EV71).¹ However, a newly recognized strain, CV-A6, has caused worldwide outbreaks of HFMD in both children and adults. Although less common than CV-A16 or EV71, CV-A6 is associated with a more severe disease course.¹ The CV-A6 strain was first identified in Finland in 2008 during a major outbreak of HFMD; it reached the United States in 2011.^2,3 Accurate statistics on the prevalence of CV-A6 in the US are difficult to obtain because HFMD is not a reportable condition.

Clinical presentation

HFMD typically manifests with painful oral lesions, with or without a macular, maculopapular, or vesicular exanthema. If a fever is present, it is usually below 101°F. The oral lesions are typically benign and manifest as erythematous macules that progress to vesicles with an erythematous halo. These lesions tend to be painful and may interfere with eating or drinking. Signs and symptoms associated with the more virulent form, CV-A6, may include

• Higher fever
• Wider distribution of lesions
• More extensive skin involvement
• Longer duration
• Palmar and plantar desquamation
• Nail dystrophy.^4,5

Laboratory diagnosis

Most symptomatic enterovirus infections are diagnosed based on clinical findings alone, reducing the need for laboratory testing. Laboratory confirmation may be warranted for more severe infections and during outbreaks. Molecular methods, such as reverse transcriptase polymerase chain reaction, are typically used for identifying enteroviruses, as they are rapid, sensitive, and widely available in hospital and commercial laboratories.⁶ Viral culture methods are labor-intensive, expensive, and reserved for typing the isolate. Serology is not useful in the diagnosis of acute infection.

Continue to: Differential diagnosis

The differential diagnosis of HFMD includes conditions with oral lesions and maculopapular, vesicular lesions involving the palms and/or soles, as well as erythroderma.

Oral lesions. Aphthous ulcers are shallow, painful oral lesions not accompanied by skin rashes. Herpes gingivostomatitis, caused by herpes simplex virus (HSV), is often preceded by a prodrome of fever. The associated lesions manifest as vesicular clusters on a red base that evolve into large, painful ulcers. HSV mouth lesions can populate the gingivae, pharynx, hard palate, lips, and perioral skin. Skin lesions may occur unilaterally.

Rashes involving palms and soles. A number of conditions manifest with skin lesions similar to those of HFMD. An autoeczematization reaction consisting of a pruritic, papulovesicular eruption secondary to dermatophyte infection (eg, tinea pedis, tinea manuum, tinea cruris, tinea corporis, tinea capitis) should be ruled out. This type of reaction is thought to be a delayed hypersensitivity response to fungal antigens. Pruritus and the absence of mouth sores distinguishes this reaction from HFMD.⁷

Secondary syphilis can manifest with a short-lived macular rash involving the palm and soles, as well as oral mucous patches and generalized lymphad­enopathy. Syphilis testing, including rapid plasma reagin or Venereal Disease Research Laboratory test with fluorescent treponemal antibody absorption, can rule out this diagnosis.

Erythema multiforme, which is more common in young adults, is characterized by target lesions on the palms and soles and erosions and/or bullae in the mouth and mucous membranes. It is usually preceded by a trigger, such as HSV infection.

Continue to: Erythroderma

Erythroderma. In addition to a rash, erythema multiforme can cause desquamation later in the disease course. Toxic shock syndrome (TSS), a life-threatening condition caused by Streptococcus or Staphylococcus, has an abrupt onset that is associated with high fever and hypotension. TSS causes a sunburn-like rash on the palms and soles that desquamates weeks after onset. Scarlet fever, caused by group A Streptococcus, can cause an erythematous rash with desquamation in children and adolescents. Scalded skin syndrome is a desquamative condition caused by Staphylococcus that occurs primarily in infants and young children.

Management

There is no specific antiviral treatment for HFMD, and thus management is mainly supportive. Fever and pain can be managed with ibuprofen or acetaminophen. Children who are unable to maintain oral hydration may require hospitalization for IV fluids.

Prevention of HFMD requires strict hand hygiene—washing with soap and water—as well as thoroughly cleaning and disinfecting surfaces that come in contact with infected oral secretions or feces.⁸

OUTCOME FOR THE CASE PATIENT

The patient was discharged and instructed to take ibuprofen as needed.

About three weeks later, the patient’s palms and soles began to peel. Clinical examination at follow-up revealed painful, diffuse, scaly desquamation of the hands and feet (see Figure 2). The patient also experienced loosening and shedding of the proximal nails (see Figure 3). She was diagnosed with postviral shedding.

Continue to: About eight weeks after the desquamatory rash manifested...

About eight weeks after the desquamatory rash manifested, complete resolution was seen. The patient experienced continued onychomadesis three months after the initial presentation.

CONCLUSION

Clinicians should be mindful of the increasing incidence of HFMD in the adult population, since it may mimic other disease states. The extent and chronicity of this patient’s clinical manifestations were unusual and may have been caused by CV-A6.