Objectives: Baricitinib is an orally active Janus kinase (JAK) inhibitor used in the treatment of moderate to severe rheumatoid arthritis (RA).
Materials And Methods: Here, we report the case of a 56-year-old Caucasian male diagnosed with RA who developed palmoplantar pustulosis (PPP) while being treated with baricitinib.
Results: The patient's PPP resolved after discontinuation of baricitinib and recurred when this was restarted. Based on causality assessment, it was considered a drug-induced PPP.
Conclusion: To the authors' knowledge, this is the first case of baricitinib-induced PPP.
Learning Points: Baricitinib is a small, orally active molecule that inhibits JAK-1 and JAK-2, which is used in the treatment of rheumatoid arthritis.Baricitinib has been also used in the treatment of psoriasis, alopecia areata and atopic dermatitis.Palmoplantar pustulosis is a rare cutaneous side effect of baricitinib.
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| http://dx.doi.org/10.12890/2019_001383 | DOI Listing |
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