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Efficacy in acne vulgaris patients aged 12 to 18 years.

Treatments for mild to moderately severe acne usually combine retinoid and antimicrobial therapy. Recently, the US FDA approved the combination of 1.2% clindamycin (CLIN) and 0.025% tretinoin (RA) in a novel gel formulation for the treatment of mild to moderate acne, based on results from two 12-week, multicenter, double-blind Phase 3 trials in which patients were randomized to four treatment arms: CLIN/RA, CLIN, RA, and vehicle.

The trials studied more than 4500 patients 12 years of age or older. In both trials, CLIN/RA gel produced significantly greater clinical improvements than vehicle or either monotherapy. CLIN/RA was safe and well tolerated in both trials and in a 52-week safety follow-up evaluation.

The current study is a subgroup analysis that evaluates CLIN/RA's effects on acne lesion prevalence in 12- to 18-year-old patients with mild to severe baseline acne severity. CLIN/RA significantly reduced the number of inflammatory, noninflammatory, and total acne lesions after 12 weeks of treatment (p < or = 0.004) in 1,710 patients aged 12 to 18 years.

Relatively greater improvements were seen following CLIN/RA treatment compared to CLIN or RA monotherapy, or the vehicle gel beginning as early as 2 weeks following treatment initiation. This novel CLIN/RA gel for treating acne is tolerable and safe and offers clinicians and teen aged patients a new and efficacious intervention for acne vulgaris.

"A novel gel formulation of 0.25% tretinoin and 1.2% clindamycin phosphate: efficacy in acne vulgaris patients aged 12 to 18 years."
Pediatr Dermatol. 2009 May-Jun; 26(3): 257-61Eichenfield LF, Wortzman M
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