<qa>  How many subjects will be enrolled in this multi-center study?Approximately 400 male and female subjects with moderate facial acne vulgaris will be enrolled in this randomized, multi-center study. Following satisfaction of entry criteria and screening procedures, subjects will be randomized to either 1.2, 2.4, or 3.6 facial cream JNJ 10229570-AAA or color-matched vehicle. Subjects will apply the study medication once daily on the face for 12 weeks. Safety will be monitored throughout the study duration. Efficacy will be assessed by facial lesion counts and by the investigator global evaluation of acne severity at Baseline and at Weeks 2, 4, 6, 8, 10, and 12. Approximately 50 subjects from one investigational site also will have serums collected at Weeks 6 and 12 for evaluation of the multiple dose pharmacokinetics of JNJ 10229570-AAA cream. 