Treatment of bullous pemphigoid with dapsone, methylprednisolone, and topical clobetasol propionate: a retrospective study of 62 cases.

Dapsone has been used successfully as adjuvant therapy for bullous pemphigoid (BP). The effectiveness of dapsone for this indication, however, remains controversial. We evaluated the effectiveness and adverse events of dapsone (1.0-1.5 mg/kg per day) in combination with oral methylprednisolone (tapering doses of 0.5 mg/kg per day) and topical clobetasol propionate (initially applied once daily on lesions only) in the treatment of BP. Sixty-two patients treated with this regimen were analyzed retrospectively. Patients were free of new blisters after a mean (+/- SD) of 22 +/- 13 days (median, 20 days). After 3 and 6 months of treatment, methylprednisolone could be reduced to less than 10 mg/d in 71% and 91% of patients, respectively; after 12 months of treatment, 53% of patients were in complete remission without receiving further therapy. Dapsone-related side effects were usually mild except in 3 patients (5%), 2 patients with anemia (hemoglobin level, <7 g/dL) and 1 with agranulocytosis. Our data suggest that dapsone used in combination with systemic and topical corticosteroids may be a relatively safe and effective treatment option for BP.