PMID: 18724648Aug 30, 2008Paper

Tretinoin microsphere gel in facial acne vulgaris: a meta-analysis

Journal of Drugs in Dermatology : JDD
Marge Nighland, Rachel Grossman

Abstract

Acne vulgaris can persist beyond adolescence into the fourth decade of life or later; most patients have a combination of inflammatory and noninflammatory lesions. To determine whether tretinoin microsphere gel (TMG) 0.04% applied once nightly is well tolerated and effective in reducing inflammatory and noninflammatory lesions in adolescents and adults with mild to moderate facial acne. The results of 3 randomized, double-blind, vehicle-controlled studies of TMG 0.04% applied once nightly for 12 consecutive weeks in a total of 629 patients, ages 11 to 49 years, were combined. Reductions in acne lesion counts were assessed twice monthly, and an investigator's global evaluation (IGE) was performed at the study endpoint (week 12). Tretinoin microsphere gel 0.04% was significantly superior to the vehicle gel in reducing both inflammatory and noninflammatory lesions over the 12-week treatment period, and produced a higher successful treatment rate than the vehicle gel, as judged by IGE ratings at week 12. The most frequent adverse events were erythema, peeling, and dryness, which were mostly mild and occurred in 59.7% to 63.3% of patients with TMG 0.04%, as compared with 26.9% to 51.0% of patients with the vehicle gel (placebo). The...Continue Reading

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