Tretinoin gel microspheres 0.04% versus 0.1% in adolescents and adults with mild to moderate acne vulgaris: A 12-week, multicenter, randomized, double-blind, parallel-group, phase IV trial

Abstract

Topical retinoids are considered first-line therapy in the treatment of acne vulgaris, yet can be associated with cutaneous irritation, including erythema, peeling, dryness, burning, and itching. Tretinoin gel microsphere (TGM) formulations were developed to minimize these effects. A lower-strength TGM formulation may be desirable to further reduce exposure to tretinoin.