A Randomized, Double-Blind, Placebo-Controlled, Parallel-Design, Multiple-Site Clinical Study to Evaluate the Therapeutic Equivalence and Safety of adapalene and benzoyl peroxide gel, 0.3%/2.5% (Actavis Laboratories UT, Inc.) to Epiduo® Forte (adapalene and benzoyl peroxide) gel 0.3%/2.5% (Galderma) in the treatment of Acne Vulgaris
Up to 1000 patients 12 to 40 years of age inclusive will be enrolled to have 870 patients in the modified intent-to-treat (mITT) population and 579 patients in the per-protocol (PP) population. The primary inclusion criteria are the presence of ≥ 20 inflammatory lesions (papules and pustules) and ≥ 25 non-inflammatory lesions (opened and closed comedones) and ≤ 2 nodulocystic lesions (i.e., nodules and cysts) on the face and an Investigator's Global Assessment (IGA) score of 3 or 4. Eligible patients will be randomized in a 1:1:1 ratio to one of the three treatments (Test, Reference or Placebo) on Visit 1. Patients will be instructed to apply the first treatment on the evening of enrollment into the study and then continue to apply once daily for the next 83 days (for a total 84 days). Patients will attend the following scheduled clinic visits: * Visit 1 - Screening/Baseline: Day 1 * Visit 2 - Interim Visit: Day 28 ± 4 * Visit 3 - Interim Visit: Day 56 ± 4 * Visit 4 - End of Study: Day 85 ± 4 Efficacy evaluations will be based on dermatological assessments in the clinic. The primary statistical analyses of interest are (1) the percent change from baseline to Week 12 in the number of inflamed (papules/pustules) lesions and non-inflamed (open and closed comedones) lesions. In addition, patients will also be evaluated by the Investigator to determine "Clinical Success" or "Clinical Failure" at Week 12
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
1,001
Adapalene and Benzoyl Peroxide Gel, 0.3%/2.5% w/w
Adapalene and Benzoyl Peroxide Gel, 0.3%/2.5% w/w
vehicle used as placebo
Site 103
Mesa, Arizona, United States
Site 109
Tucson, Arizona, United States
Percent Change From Baseline to Week 12 in the Number of Inflamed Lesions.
Time frame: 12 weeks
Percent Change From Baseline to Week 12 in the Number of Non-inflamed Lesions.
Time frame: 12 weeks
Percentage of Patients With a Clinical Response of "Clinical Success" Using the Investigator's Global Assessment (IGA) at Week 12
The Investigator's Global Assessment had to show a score of 0 (clear) or 1 (almost clear) to be considered a "Clinical Success". 0= Clear skin with no inflammatory or non inflammatory lesions. 1. Almost clear, rare non-inflammatory lesions with no more than one small inflammatory lesion. 2. Mild severity; greater than Grade 1; some non inflammatory lesions with no more than a few inflammatory lesions (papules/pustules only, no nodular lesions). 3. Moderate severity; greater than Grade 2; up to many non inflammatory lesions and may have some inflammatory lesions, but no more than one small nodular lesion. 4. Severe; greater than Grade 3, up to many non inflammatory lesions and may have some inflammatory lesions, but no more than a few nodular lesions. 5. Very severe, greater than Grade 4
Time frame: 12 weeks
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Site 112
Anaheim, California, United States
Site 110
Long Beach, California, United States
Site 111
Los Angeles, California, United States
Site 104
San Diego, California, United States
Site 113
West Covina, California, United States
Site 101
Brandon, Florida, United States
Site 119
Jacksonville, Florida, United States
Site 114
Miami, Florida, United States
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