7 citations
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September 2024 in “The Journal of Dermatology” This study evaluated the effectiveness and safety of ritlecitinib in patients aged 12 or older with alopecia totalis or universalis, finding higher hair regrowth response rates compared to placebo at 24 weeks, with continued improvement and acceptable safety through 48 weeks.
January 2024 in “American journal of clinical dermatology” This study reports that ritlecitinib, when used for up to 24 months in patients aged 12 and older with alopecia areata, has an acceptable safety profile, with a similar proportion of adverse events in both ritlecitinib and placebo groups in the placebo-controlled cohort.
July 2024 in “Journal of Investigative Dermatology” ITK inhibitors may effectively treat alopecia areata.
3 citations
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July 2025 in “Clinical and Experimental Dermatology” This study reported that patients with alopecia areata treated with ritlecitinib in a real-life setting had a higher rate of positive response on the Severity of Alopecia Tool score compared to those in the ALLEGRO trial.
March 2026 in “The Journal of Dermatology” This study found that ritlecitinib 50 mg is cost-effective compared to no treatment for patients in Japan with alopecia areata and significant scalp hair loss, demonstrating an incremental cost-effectiveness ratio below the country's cost-effectiveness threshold.