April 2021 in “Research Square (Research Square)” This study concluded that achieving 80% or more scalp hair, corresponding to a SALT score of ≤20, represents a clinically meaningful treatment success for patients with alopecia areata experiencing ≥50% hair loss.
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February 2025 in “Journal of Dermatological Treatment” This study found a positive association between clinically meaningful scalp hair regrowth and improvements in patient-reported outcomes, such as satisfaction and reduced psychosocial burden.
March 2026 in “American Journal of Clinical Dermatology” In this study, ritlecitinib 50 mg produced clinically meaningful improvements in scalp hair regrowth over three years for patients aged 12 and older with severe alopecia areata, with 65.1% showing substantial hair regrowth and 31.2% achieving complete regrowth, while also maintaining a consistent safety profile.
September 2023 in “Journal of The American Academy of Dermatology” In this study, baricitinib was evaluated for its effectiveness in promoting concurrent regrowth of scalp hair, eyebrows, and eyelashes in patients with severe alopecia areata, showing clinically meaningful responses compared to placebo.
November 2025 in “SKIN The Journal of Cutaneous Medicine” In a real-world study, baricitinib was effective for scalp, eyebrow, and eyelash regrowth in patients with alopecia areata, showing clinically meaningful improvements as early as 3 months and increasing up to 12 months; satisfaction and perceived improvement were also high among participants.