Evaluating the Effectiveness and Tolerance of Baricitinib in the Treatment of Acute Alopecia Areata With Active Hair Shedding: A Prospective Open-Label Study

This study evaluates the use of baricitinib 4 mg once daily for 16 weeks in patients with acute alopecia areata (AA) experiencing active hair shedding. Unlike prior studies focusing on chronic AA with extensive hair loss (SALT ≥ 50), this intervention targets the acute phase, aiming to halt shedding within 4-6 weeks-faster than conventional treatments like corticosteroids. Patients meeting the primary endpoint (iSARS-AA ≤ 20 at week 16) will taper to 2 mg daily for an additional 16 weeks. Scheduled follow-ups at weeks 0, 4, 8, 12, 16, 24, 32, 36, 44, and 52 ensure comprehensive monitoring, distinguishing this study from others with shorter follow-ups or less frequent assessments.