Safety and Efficacy of Oral NXC-736 in Adult Participants With Moderate and Severe Alopecia Areata

Inclusion Criteria: * Men or women between ≥19 and ≤65 years of age at the time of informed consent * Moderate and severe alopecia areata as assessed by a SALT score of 25% ≤ SALT \< 95% at Screening and Day 1/Baseline * Current episode of hair loss for ≥6 months but \<8 years * Stable disease condition (no significant growth of hair) in the last 6 months as assessed by the Investigator * Willing to keep the same hair style and color (eg, hair products, process, and timing for hair appointments) for the duration of the study Exclusion Criteria: * Participants with the following medical history confirmed during screening: * ohter Types of alopecia other than alopecia areata (such as cicatricial/scarring alopecia \[including central centrifugal cicatricial alopecia\], traction alopecia, androgenic alopecia, telogen effluvium, etc.) * Active scalp inflammation, scalp infection, scalp psoriasis, or any other scalp condition that may interfere with the SALT assessment * Previous use of Janus kinase (JAK) inhibitor (oral or topical), including participation in clinical studies of JAK inhibitors