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Observational Study of Clindamycin Phosphate and Tretinoin Gel for the Treatment of Acne

Observational Study of Clindamycin Phosphate and Tretinoin Gel for the Treatment of Acne

Johan Ohlson, Rada Dakovic, Mats Berg

J Drugs Dermatol. 2019 Apr 1;18(4):328-334.

PMID: 31012560

Abstract:

INTRODUCTION: Acne vulgaris can cause pain/discomfort and have a negative impact on quality of life (QOL). Clin-RA is an acne treatment consisting of clindamycin phosphate 1.2% and tretinoin 0.025%, which has been proven effective and well tolerated in clinical studies. This prospective, non-interventional study aimed to capture data on previous treatment, acne severity, and QOL in patients with acne treated with Clin-RA and assess the efficacy and tolerability of Clin-RA in routine clinical practice. METHODS: The study was performed at 18 centers in Sweden and enrolled patients aged ≥15 years with acne, who were prescribed Clin-RA for the first time. The observation period was ~12 weeks. The primary objective was to assess the patient's perception of their facial acne severity before and during Clin-RA treatment using a visual analog scale (VAS; 100 mm scale). Secondary objectives included QOL evaluation before and after treatment, using the Dermatology Life Quality Index (DLQI) questionnaire. RESULTS: 84 patients were enrolled and eligible for analyses (79.8% female; mean age 22.6 years). Patient-assessed VAS scores for acne severity decreased continuously during the study, indicating improvement: the median percentage reduction from baseline for VAS score was 17.6% at week 4 and 63.8% at week 12, with changes from baseline being statistically significant (P=0.0004 at week 4; P<0.0001 at weeks 8 and 12). Overall, QOL improved after Clin-RA treatment, reflected by a decrease in the mean (standard deviation) DLQI sum score from 8.8 (5.8) on day 0 to 4.9 (4.2) at week 12. Seventy percent of patients were satisfied/very satisfied with treatment. Clin-RA was well tolerated, with no serious adverse drug reactions reported. CONCLUSIONS: Treatment with Clin-RA resulted in continuous improvement of facial acne over the course of 12 weeks, along with improved QOL and a tolerable safety profile, supporting the use of Clin-RA in clinical practice. J Drugs Dermatol. 2019;18(4):328-334.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP24729962-A	Clindamycin Phosphate		24729-96-2	Price

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