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Dermatology · Hair disorders: JAK inhibitors
Sample itemWhich oral drug class has been approved for severe alopecia areata through inhibition of interferon gamma signalling?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Janus kinase inhibitors such as baricitinib
JAK inhibitors block cytokine signalling that drives CD8 T cell attack on hair follicles and lead to regrowth in many patients with severe alopecia areata. Relapse is common after stopping, and infection and lipid monitoring are needed.
Option by option
A. Antifungal azoles
Azoles treat fungal infection.
B. Janus kinase inhibitors such as baricitinib (correct)
Correct. Baricitinib is an approved JAK inhibitor for severe disease.
C. 5-alpha reductase inhibitors
5-alpha reductase inhibitors treat androgenetic alopecia.
D. Retinoids
Retinoids are not used for alopecia areata.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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