Extension Study to Evaluate Safety and Efficacy of Jaktinib in Adults With Alopecia Areata

A Multicenter, Open-Label, Extension Study to Assess the Long-Term Safety and Efficacy of Jaktinib in Adult Patients With Moderate to Severe Alopecia Areata

This study (Unique Protocol ID: ZGJAK020) as an extension of the ongoing "Study to Evaluate Safety and Efficacy of Jaktinib in Adults With Alopecia Areata (Unique Protocol ID:ZGJAK020)" study. After completion of ZGJAK018 study, the study will be directly extend with an "open-label design".

Inclusion Criteria:

• Subjects voluntarily sign the informed consent form.
• Patients who participated in ZGJAK018.

Exclusion Criteria:

• Subjects who are unsuitable to the trial, as identified by the investigator.