OBJECTIVE
To assess the maintenance effect of adapalene gel, 0.1%, relative to gel vehicle in subjects successfully treated in a previous 12-week study of adapalene-doxycycline, 100 mg, combination therapy.
DESIGN
Multicenter, investigator-blind, randomized, controlled study.
SETTING
Thirty-four US centers.
SUBJECTS
A total of 253 subjects with severe acne vulgaris who showed at least mod...