PMID- 22134562 OWN - NLM STAT- MEDLINE DCOM- 20120406 LR - 20131121 IS - 1545-9616 (Print) IS - 1545-9616 (Linking) VI - 10 IP - 12 DP - 2011 Dec TI - Safety and efficacy of clindamycin phosphate 1.2%-benzoyl peroxide 3% fixed-dose combination gel for the treatment of acne vulgaris: a phase 3, multicenter, randomized, double-blind, active- and vehicle-controlled study. PG - 1382-96 AB - BACKGROUND: Topical fixed-combination therapy containing 1% clindamycin as 1.2% clindamycin phosphate (CLNP) and 3% benzoyl peroxide (BPO) is an effective treatment for acne vulgaris (acne). OBJECTIVES: To demonstrate that the combination of 1.2% CLNP with lower strength BPO (CLNP 1.2%-BPO 3%) in a gel formulation is superior to each individual ingredient, CLNP 1.2% and BPO 3%, and vehicle gel. METHODS: A total of 1,319 patients with acne, aged 12 years or older, were enrolled and randomized (1:1:1:1) to receive CLNP 1.2%-BPO 3%, CLNP 1.2% gel, BPO 3% gel, or vehicle gel once-daily in a 12-week, multicenter, double-blind, parallel-group, vehicle-controlled study. Subjects were evaluated at baseline, weeks 2, 4, 8, and 12 or early termination. Assessment of efficacy was evaluated using a six-point Investigator's Static Global Assessment (ISGA) and Subject's Global Assessment (SGA) of acne severity and lesion counts (inflammatory, non-inflammatory, and total). Safety assessments included skin tolerability and adverse events (AEs). RESULTS: A greater proportion of subjects who used CLNP 1.2%-BPO 3% gel (39%) had a two grade improvement in ISGA from baseline to week 12 compared with CLNP 1.2% (25%; P<0.001), BPO 3% (30%; P=0.016), and vehicle (18%; P<0.001). CLNP 1.2%- BPO 3% was superior to CLNP 1.2% and vehicle alone in the absolute reduction from baseline to week 12 in all three lesion types (P<0.001 all pair-wise comparisons). CLNP 1.2%-BPO 3% was superior to BPO 3% alone in the absolute reduction from baseline to week 12 in inflammatory (P=0.015) and total (P=0.032) lesion counts. The incidence of product-related AEs was low and similar in all study groups (1% with CLNP 1.2%-BPO 3%, 2% with CLNP 1.2%, 2% with BPO 3%, and 2% with vehicle). Local tolerability assessments showed similar minimal changes from baseline to week 12 in all study groups. CONCLUSION: CLNP 1.2%-BPO 3% gel provides superior efficacy to improve ISGA score and reduce inflammatory and total lesion counts compared with the individual active ingredients (CLNP 1.2% and BPO 3%) and vehicle, while maintaining a highly favorable safety and tolerability profile similar to BPO 3% alone. FAU - Eichenfield, Lawrence F AU - Eichenfield LF AD - Rady Children's Hospital, San Diego, CA 92123-4204, USA. leichenfield@rchsd.org FAU - Alio Saenz, Alessandra B AU - Alio Saenz AB LA - eng PT - Clinical Trial, Phase III PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - United States TA - J Drugs Dermatol JT - Journal of drugs in dermatology : JDD JID - 101160020 RN - 0 (Anti-Bacterial Agents) RN - 0 (Dermatologic Agents) RN - 0 (Drug Combinations) RN - 0 (Gels) RN - 0 (clindamycin phosphate benzoyl peroxide combination) RN - 3U02EL437C (Clindamycin) RN - W9WZN9A0GM (Benzoyl Peroxide) SB - IM MH - Acne Vulgaris/*drug therapy MH - Adolescent MH - Adult MH - Anti-Bacterial Agents/adverse effects/*therapeutic use MH - Belize MH - Benzoyl Peroxide/adverse effects/*therapeutic use MH - Canada MH - Child MH - Clindamycin/adverse effects/*therapeutic use MH - Dermatologic Agents/adverse effects/*therapeutic use MH - Double-Blind Method MH - Drug Combinations MH - Female MH - Gels MH - Humans MH - Male MH - Middle Aged MH - Treatment Outcome MH - United States MH - Young Adult EDAT- 2011/12/03 06:00 MHDA- 2012/04/07 06:00 CRDT- 2011/12/03 06:00 PHST- 2011/12/03 06:00 [entrez] PHST- 2011/12/03 06:00 [pubmed] PHST- 2012/04/07 06:00 [medline] PST - ppublish SO - J Drugs Dermatol. 2011 Dec;10(12):1382-96.