U.S. Dermatology Update eNewsletter
December 2021

Safety & Efficacy of Guselkumab in Patients With Psoriatic Arthritis and Exposure to TNFis
Recently, researchers explored the efficacy and safety of guselkumab, an anti-interleukin-23p19-subunit antibody, in patients with psoriatic arthritis (PsA) with prior inadequate response (IR) to tumour necrosis factor inhibitors (TNFis). The study was published in the journal Annals of Rheumatic Disease. The researchers evaluated the efficacy and safety of guselkumab in patients who had previously taken TNFIs. Read more.


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Study Shows That 40% of Patients With Vitiligo May Remain Undiagnosed 
Researchers recently conducted a study to estimate the point prevalence of vitiligo in the United States. In a recent study published in JAMA Dermatology, researchers conducted a cross-sectional, population-based online survey study of more than 40,000 adults in the U.S. between December 2019 and March 2020 to obtain participant self-reported vitiligo status. Read more.


Traditional Shampoos Appear to Have More Allergenic Ingredients Than Clean Shampoos
Researchers may have discovered more allergenic ingredients in ordinary shampoos in comparison to "clean" shampoos. In a study published in the Journal of the American Academy of Dermatology, researchers evaluated the ingredients of clean shampoos and traditional ingredients in order to establish if there were any differences in the formulations and potential for any allergenic ingredients. Read more.

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