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A randomized, double-blind, placebo-controlled study of clobetasol propionate 0.05% foam in the treatment of nonscalp psoriasis.

Author(s): Lebwohl M, Sherer D, Washenik K, Krueger GG, Menter A, Koo J, Feldman SR

Affiliation(s): Departments of Dermatology, Mount Sinai Medical Center, New York, NY 10029-6574, USA. sinaiderom@aol.com

Publication date & source: 2002-05, Int J Dermatol., 41(5):269-74.

Publication type: Clinical Trial; Randomized Controlled Trial

BACKGROUND: Topical corticosteroids are the primary treatment for mild to moderate psoriasis. Foam preparations of corticosteroids offer potential cosmetic and pharmacodynamic advantages over cream and ointment vehicles. A clobetasol propionate foam product is as effective as clobetasol propionate solution in the treatment of scalp psoriasis. AIM: To evaluate the safety and efficacy of clobetasol propionate foam in the treatment of psoriasis involving sites other than the scalp. METHODS: Eighty-one subjects with mild to moderate psoriasis were randomized in a 3 : 1 ratio to receive clobetasol propionate foam vs. placebo foam treatment in this double-blind study of psoriasis involving nonscalp sites. The investigator's and subject's global assessment of the response at week 2 (or at the end of treatment) and at week 4 (follow-up) and the severity of erythema, scaling, and plaque thickness were assessed. Safety was assessed from reported adverse events. RESULTS: After 2 weeks of treatment, there was significantly greater improvement with clobetasol propionate foam compared with placebo foam in both investigator's and subject's global assessment of the response (P < 0.0005). The improvement with clobetasol propionate foam was still present at the 4-week follow-up visit. Adverse effects were generally limited to mild to moderate application site reactions. No subjects withdrew because of adverse events. CONCLUSIONS: Clobetasol propionate foam is more effective than placebo in the treatment of nonscalp psoriasis. Twice-daily applications are well tolerated, compliance exceeds 90%, cosmetic characteristics are acceptable, and the medication may eliminate the need for separate scalp and body prescriptions.

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