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Efficacy of topical combination of benzoyl peroxide 5% and clindamycin 1% for the treatment of progressive macular hypomelanosis: a randomized, doubleblind, placebo-controlled trial. [Article in English, Portuguese]

Author(s): Santos JB, Almeida OL, Silva LM, Barreto ER.

Affiliation(s): Bahia School of Medicine and Public Health, Salvador, BA, Brasil. jussamarabrito@gmail.com

Publication date & source: 2011, An Bras Dermatol. , 86(1):50-4

BACKGROUND: Progressive macular hypomelanosis is a dermatosis without definite etiology. There is no consensus or first-line therapy in the treatment of progressive macular hypomelanosis, and the treatment options used are very little effective. OBJECTIVE: To evaluate the therapeutic efficacy of the topical combination of benzoyl peroxide 5% and clindamycin 1% associated with sun exposure for the treatment of progressive macular hypomelanosis. MATERIALS AND METHODS: This is a randomized, double-blind, placebo-controlled study in which patients were divided into two groups. Group A used the topical combination of benzoyl peroxide 5% and clindamycin 1% and Group B used gel cream as a placebo. Patients were advised to expose themselves to the sun on a daily basis and were systematically evaluated and photographed. The collected data were entered and analyzed using Epi Info. A p value < 0.05 was considered statistically significant. RESULTS: Out of the 23 patients included in the study, 13 were in group A and 10 in group B. Eleven patients (85%) in group A had significant clinical improvement and only two patients (20%) in group B showed an equivalent clinical improvement (p = 0.003). Side effects were more frequent in group A (p = 0.003). CONCLUSION: The topical combination of benzoyl peroxide 5% and clindamycin 1% is effective in the treatment of progressive macular hypomelanosis.

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