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J Drugs Dermatol. 2018 Oct 1;17(10):1058-1060.

Efficacy of Systemic Dapsone Treatment for Pyoderma Gangrenosum: A Retrospective Review.



Pyoderma gangrenosum (PG) is a neutrophilic dermatosis commonly treated with steroid immunosuppression. The utility of dapsone as a non-immunosuppressive treatment for PG has been reported in case reports and series. We sought to evaluate the response and tolerability of concurrent systemic dapsone therapy for treating PG.


We reviewed PG patients treated with systemic dapsone at Massachusetts General Hospital and Brigham and Women's Hospital from 2000-2015. A treatment episode was defined as a minimum of 4 weeks of dapsone therapy with a documented response of complete, partial, or no improvement in wound healing.


27 patients treated with systemic dapsone met inclusion criteria. 15.6% of treatment episodes demonstrated a response of complete healing, 81.3% of treatment episodes demonstrated a response of partial improvement, and 1 patient (3.1%) demonstrated no response. 9 patients (33.3%) had documented side effects of varying severity, with one (3.7%) requiring cessation of dapsone therapy.


Systemic dapsone therapy may represent an effective and tolerable non-immunosuppressive adjuvant treatment for PG wound healing. J Drugs Dermatol. 2018;17(10):1058-1060.

[Indexed for MEDLINE]

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