What do systematic reviews say?

Summary of findings table ‐ Oral small molecule inhibitors (apremilast or baricitinib) vs placebo

Summary of findings table ‐ Oral small molecule inhibitors… showed no clear difference in incidence of serious adverse events compared with placebo (low certainty).

• Treatments for alopecia areata: a network meta‐analysis 2023 · Cochrane Headline outcomes only
  RR 1.47 [0.6, 3.6]
  3 studies · 1224 participants
  Low