Abstract
BackgroundAlopecia areata (AA) is an autoimmune skin disease difficult to manage and treat. The pathogenesis of AA features a T-cell-associated autoimmune process, and systemic immunosuppressive therapy is prescribed widely for AA.ObjectiveTo evaluate the efficacy and tolerance of systemic low-dose methotrexate (LD-MTX) therapy in treatment of recalcitrant AA multiplex.MethodsIn a retrospective, non-controlled study, we evaluated 29 patients with recalcitrant AA treated with LD-MTX and assessed the therapeutic response according to severity of disease, disease duration, cumulative dose of MTX, and drug safety.ResultsMTX was administered twice weekly, and the mean maximum weekly dose was 14.48 mg. The response was A5 (regrowth=100.0%) in 14 (48.3%) patients and A4 (regrowth of 75%~90%) in 12 (41.4%) patients. Three patients had poor response to LD-MTX treatment (A2: n=2 [6.9%], A1: n=1 [3.4%]). All three of the patients showing a poor response had disease durations exceeding 24 months. Relapse was observed in 31% of patients with more than 75% regrowth. Common side-effects were elevated liver enzyme levels and gastrointestinal discomfort.ConclusionLD-MTX appears to be an effective and well-tolerated treatment for recalcitrant AA multiplex.
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