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  • Title: Comparison of adapalene 0.1% solution and tretinoin 0.025% gel in the topical treatment of acne vulgaris.
    Author: Ellis CN, Millikan LE, Smith EB, Chalker DM, Swinyer LJ, Katz IH, Berger RS, Mills OH, Baker M, Verschoore M, Loesche C.
    Journal: Br J Dermatol; 1998 Oct; 139 Suppl 52():41-7. PubMed ID: 9990420.
    Abstract:
    A multicentre study was conducted to compare clinical safety and efficacy of adapalene 0.1% solution and tretinoin 0.025% gel, both topical treatments for acne, in a once-daily dosage regimen for 12 weeks. A total of 297 patients were enrolled by eight investigators in this randomized, investigator-masked study in a parallel group design. An open label period using adapalene followed this study to assess the long-term safety of adapalene solution. Adapalene and tretinoin proved to be clinically and statistically effective in treating acne by reducing inflammatory (47% and 50%, respectively) and non-inflammatory lesions (57% and 54%) as compared to baseline. When comparing patients who had 75% or greater improvement in open comedones, adapalene was shown to be significantly more effective than tretinoin. No serious adverse event was reported during this study, including during the long-term period. The reactions that occurred were similar between treatments, i.e. burning, pruritus, scaling, dryness and erythema.
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