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Simplifying regimens promotes greater adherence and outcomes with topical acne medications: a randomized controlled trial.

Author(s): Yentzer BA, Ade RA, Fountain JM, Clark AR, Taylor SL, Fleischer AB Jr, Feldman SR

Affiliation(s): Department of Dermatology, Wake Forest University School of Medicine, Winston-Salem, North Carolina 27157-1071, USA.

Publication date & source: 2010-08, Cutis., 86(2):103-8.

Publication type: Randomized Controlled Trial; Research Support, Non-U.S. Gov't

New combination topical formulations for the treatment of acne may improve outcomes by increasing adherence. We assessed adherence to and efficacy of a combination topical medication for acne applied once daily compared with daily applications of 2 separate generic subcomponents. Twenty-six participants with mild to moderate acne vulgaris were randomized to 12 weeks of once daily application of clindamycin phosphate 7.2%-tretinoin 0.025% gel (CTG) combination product or separate daily applications of clindamycin phosphate gel 1% and tretinoin cream 0.025% (C gel + T cream) for a total of 2 applications daily. Disease severity was measured at baseline and weeks 4, 8, and 12. Adherence was monitored using electronic monitoring caps on the medication tubes. Of the 26 participants enrolled, 21 completed the 12-week study. Median adherence in the CTG group was 88% compared with 61% in the C gel + T cream group. There was a 51% mean reduction in total lesions for the CTG group versus a 32% mean reduction for the C gel + T cream group by the end of the study. Both CTG and separate applications of C gel + T cream improved mild to moderate acne. The use of a once daily combination product has the advantage of promoting better adherence and clinical outcomes.

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