Efficacy and Safety of Azelaic Acid (AzA) Gel 15% in the Treatment of Post-Inflammatory Hyperpigmentation and Acne: A 16-Week, Baseline-Controlled Study
June 2011 | Volume 10 | Issue 6 | Original Article | 586 | Copyright © June 2011
Leon H. Kircik, MD
Indiana University School of Medicine, Indianapolis, IN
count was 46 percent at week 4 (P<0.0001) and 100 percent at
week 16 (P=0.0002).
Similarly, there was a 45.5 percent median reduction in noninflammatory
lesion counts at week 4 (P<0.0001) and a 100
percent median reduction at week 16 (P=0.0002).
Post-Inflammatory Hyperpigmentation
PIH Severity
At baseline, 60 percent of subjects were rated as having
moderate PIH based on IGA, 20 percent had moderately severe