Abstract
Secukinumab (Cosentyx), an interleukin-17A-targeting biological agent, is commonly prescribed for psoriasis, psoriatic arthritis, and spondyloarthritis (SpA). Alopecia areata (AA), an IL-17-mediated autoimmune disorder characterized by nonscarring hair loss, particularly in an ophiasis pattern, represents a rare adverse effect associated with secukinumab therapy. We present a case of a 46-year-old female with SpA undergoing secukinumab treatment, who developed an ophiasis pattern of AA, subsequently experiencing regrowth upon medication discontinuation. The patient's clinical course and treatment response are detailed, alongside a discussion on the potential pathophysiological mechanisms underlying secukinumab-induced AA. Additionally, we provide a review of existing literature, discussing similar cases and proposing hypotheses on the immunological basis of this adverse event. This report underscores the importance of recognizing and managing secukinumab-induced AA, highlighting the need for further investigation and tailored therapeutic approaches in affected patients.