A Common Drug Offers New Hope to People With Severe Hair Loss
Summary
Two large clinical studies have found that the arthritis drug upadacitinib helps about half of people with severe alopecia areata regrow most of their scalp hair within 24 weeks. The drug works by blocking immune system signals that attack hair follicles, improving hair growth and quality of life for many patients.Key Facts
- Upadacitinib is an oral drug already approved to treat rheumatoid arthritis.
- The drug was tested in nearly 1,400 people aged 12 to 64 with severe alopecia areata.
- Participants took either 15 mg, 30 mg, or a placebo once daily for 24 weeks.
- About 45% of those on 15 mg and 54-55% on 30 mg regained at least 80% scalp hair, versus 1-3% on placebo.
- Upadacitinib is a JAK inhibitor that blocks immune pathways involved in hair loss.
- The studies also showed improvements in eyebrow and eyelash hair growth.
- Common side effects included respiratory infections, acne, and elevated enzyme levels.
- Serious side effects were rare but occurred slightly more often in treated groups than placebo.
- Doctors emphasize the need for long-term safety data and monitoring during treatment.
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