
Rheumatoid arthritis drug shows promise for regrowing hair in alopecia areata
A phase 3 trial found that the JAK inhibitor upadacitinib, used to treat rheumatoid arthritis, regrew hair in about half to just over half of participants with severe alopecia areata within 24 weeks, with 80% scalp coverage achievable at the 30 mg dose. Eyebrows and eyelashes also improved, and participants reported better emotional and social well-being. The drug is approved for severe alopecia areata in Europe and is under FDA review in the U.S.; longer-term safety and durability data are still needed to inform routine use.






