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A successful maintenance approach in inflammatory acne with adapalene gel 0.1% after an initial treatment in combination with clindamycin topical solution 1% or after monotherapy with clindamycin topical solution 1%.

Zhang JZ, Li LF, Tu YT, Zheng J

Department of Dermatology, Peking University People's Hospital, Bejing 10044, China. rmzjz@sina.com

BACKGROUND: METHODS: A total of 300 acne subjects entered this multicentre, randomized, investigator-blinded study comparing the efficacy and safety of adapalene gel 0.1% plus clindamycin topical solution 1% versus clindamycin topical solution 1% alone. In the second part of the study (weeks 12-24), completed by 241 subjects, the efficacy and safety of adapalene gel 0.1% alone as a maintenance therapy was investigated. RESULTS: A statistically significant greater reduction was observed from week 4 until week 12 in total lesion counts and from week 8 on for inflammatory and non-inflammatory lesion counts during the initial treatment for combination therapy compared with monotherapy. Results at week 24 for the reduction in all lesion counts during the maintenance phase were statistically significant in favour of adapalene (41.6%) compared with an increase for all lesion counts in the control group (92.1%). Adapalene alone or in combination with clindamycin topical solution was well tolerated. Few adverse events occurred, all of them during the initial treatment phase. Most of these local events were mild or moderate. CONCLUSION: The present study confirmed the importance of a maintenance therapy after a successful initial treatment and underlined the benefit of a combination therapy with a topical retinoid such as adapalene and a topical antibiotic in the treatment of inflammatory acne.

Published 14 March 2005 in J Dermatolog Treat, 15(6): 372-8.
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