FDA Approves Pfizer Alopecia NDA
FDA has approved a Pfizer NDA for Litfulo (ritlecitinib), a once-daily oral treatment for individuals 12 years of age and older with severe alopecia areata. The kinase inhibitor is designed to inhibit Janus kinase 3 and the tyrosine kinase expressed in hepatocellular carcinoma family of kinases.
Approval was based on data from the ALLEGRO Phase 2b/3 trial, which enrolled 718 patients with 50% or more scalp hair loss. “In this pivotal study, 23% of patients treated with Litfulo 50 mg had 80% or more scalp hair coverage after six months compared to 1.6% with placebo,” Pfizer says. On the safety side, it says the most common adverse events reported in at least 4% of patients included headache (10.8%), diarrhea (10%), acne (6.2%), rash (5.4%), and urticaria (4.6%).