Overview A Study With Jaktinib Hydrochloride Cream Applied Topically to Subjects With Alopecia Areata Status: Recruiting Trial end date: 2022-12-01 Target enrollment: Participant gender: Summary This study includes a dose escalation part(phase I) and a dose extension part(phase II). Phase: Phase 1/Phase 2 Details Lead Sponsor: Suzhou Zelgen Biopharmaceuticals Co.,Ltd