By: Gabrielle M. Grasso
Almost one-third of people treated for 3 years with ritlecitinib for alopecia areata achieved complete scalp hair regrowth, according to a study. There are only two FDA-approved therapies to treat severe alopecia areata (AA), one of which is ritlecitinib (Litfulo, Pfizer), an oral JAK 3 inhibitor. The approval was supported by results from the ALLEGRO clinical trial program, an ongoing series of













