title: An aqueous gel fixed combination of clindamycin phosphate 1.2% and benzoyl peroxide 2.5% for the once-daily treatment of moderate to severe acne vulgaris: assessment of efficacy and safety in 2813 patients.
abstract: OBJECTIVE
  We sought to evaluate efficacy, safety, and tolerability of a combination of clindamycin phosphate 1.2% and benzoyl peroxide 2.5% (clindamycin-BPO 2.5%) aqueous gel in moderate to severe acne vulgaris.
  
  
  METHODS
  A total of 2813 patients, aged 12 years or older, were randomized to receive clindamycin-BPO 2.5%, individual active ingredients, or vehicle in two identical, double-blind, controlled 12-week, 4-arm studies evaluating safety and efficacy (inflammatory and noninflammatory lesion counts) using Evaluator Global Severity Score and subject self-assessment.
  
  
  RESULTS
  Clindamycin-BPO 2.5% demonstrated statistical superiority to individual active ingredients and vehicle in reducing both inflammatory and noninflammatory lesions and acne severity. Visibly greater improvement was observed by patients with clindamycin-BPO 2.5% as early as week 2. No substantive differences were seen in cutaneous tolerability among treatment groups and less than 1% of patients discontinued treatment because of adverse events.
  
  
  CONCLUSIONS
  Data from controlled studies may differ from clinical practice.
  
  
  CONCLUSIONS
  Clindamycin-BPO 2.5% provides statistically significant greater efficacy than individual active ingredients and vehicle with a highly favorable safety and tolerability profile.
authors.affiliation: Department of Dermatology, the Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA.
authors.forename: Diane
authors.initials: D
authors.lastname: Thiboutot
authors.forename: Andrea
authors.initials: A
authors.lastname: Zaenglein
authors.forename: Jonathan
authors.initials: J
authors.lastname: Weiss
authors.forename: Guy
authors.initials: G
authors.lastname: Webster
authors.forename: Barry
authors.initials: B
authors.lastname: Calvarese
authors.forename: Diana
authors.initials: D
authors.lastname: Chen
mesh_terms: D000152:Acne Vulgaris / Q000188:drug therapy*; D000293:Adolescent; D000328:Adult; D000368:Aged; D001585:Benzoyl Peroxide / Q000008:administration & dosage* / Q000009:adverse effects; D002648:Child; D002981:Clindamycin / Q000008:administration & dosage / Q000009:adverse effects / Q000031:analogs & derivatives*; D004338:Drug Combinations; D064420:Drug-Related Side Effects and Adverse Reactions; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D016896:Treatment Outcome
chemical_list: D004338:Drug Combinations; D002981:Clindamycin; C007084:clindamycin phosphate; D001585:Benzoyl Peroxide