research 598 Response to ritlecitinib treatment based on salt improvement scores in patients with alopecia areata (AA): Post hoc analysis of the allegro phase 2b/3 study
This study found that treatment with ritlecitinib led to significant scalp hair regrowth in patients with alopecia areata at Weeks 24 and 48, with higher response rates observed in those receiving 50 mg compared to 30 mg doses.