Efficacy and Safety of Clascoterone Cream 1% and Clindamycin 1.2%/Benzoyl Peroxide 5% Gel Treatment in Patients With Acne

June 2026 | Volume 25 | Issue 6 | 537 | Copyright © June 2026


Published online May 29, 2026

Charles Kircik a, Leon Kircik MDb-e, Nicholas Squittieri MDf, Kizito Kyeremateng PharmDf

aUniversity of Kentucky, Lexington, KY
bIcahn School of Medicine at Mount Sinai, New York, NY
cIndiana University School of Medicine, Indianapolis, IN
dPhysicians Skin Care, PLLC, Louisville, KY
eDermResearch, PLLC, Louisville, KY
fSun Pharmaceutical Industries, Inc., Princeton, NJ

Abstract
Background: Clascoterone cream 1% is a topical androgen receptor inhibitor approved to treat acne vulgaris in patients ≥12 years of age. The American Academy of Dermatology recommends combining topical therapies that target different mechanisms of acne pathogenesis as first-line treatment for acne. This 16-week, open-label pilot study evaluated the efficacy and safety of clascoterone cream 1% combined with clindamycin 1.2%/benzoyl peroxide 5% gel in patients with acne.
Methods: Patients aged ≥12 years with moderate acne applied clascoterone cream 1% twice daily and clindamycin 1.2%/benzoyl peroxide 5% gel once daily for 12 weeks. Assessments included Investigator's Global Assessment (IGA) score; inflammatory, noninflammatory, and total lesion counts; Dermatology Life Quality Index (DLQI) score; tolerability (through local skin reactions); and safety (through adverse events) through week 16.
Results: Nine patients were enrolled in the study (female, 56%; White, 56%; mean [standard deviation (SD)] age, 33 [17] years). At week 16, all patients had an IGA score of clear (0) or almost clear (1); from baseline to week 16, there were significant decreases in lesion counts (mean [SD] percent reduction; inflammatory: 96.4 [6.0], P=0.007; noninflammatory: 86.1 [15.3], P=0.009; total: 92.0 [8.2], P=0.008) and DLQI scores (mean [SD] reduction, 3.1 [2.1], P=0.014). The treatment was well tolerated with no adverse events reported through week 16.
Conclusions: Based on data from 9 patients, combination treatment with clascoterone cream 1% and clindamycin 1.2%/benzoyl peroxide 5% gel is safe and effective to treat patients with acne.

 

INTRODUCTION

Acne vulgaris is an inflammatory skin disorder with a global prevalence of 9.4% and 231.2 million cases reported worldwide in 2019.1 It is characterized by the presence of noninflammatory (closed or open comedones) and inflammatory (papules, pustules, nodules, and cysts) lesions.2 Although acne is most common during adolescence, it can present at any age in people of both sexes.3 Patients with acne have reduced quality of life and low self-esteem, especially those with more severe and extensive acne, adding to the high burden of disease.4

The pathogenesis of acne is driven by 4 main components: sebum production, follicular hyperkeratinization, bacterial colonization, and inflammation.2 Sebum production is largely regulated by androgens; testosterone and dihydrotestosterone bind to androgen receptors in sebocytes within the sebaceous gland, promoting the expression of genes that induce sebum production. This excess sebum leads to the accumulation of keratinocytes and colonization with Cutibacterium acnes, inducing inflammation and lesion formation.5-9

Clascoterone cream 1% is an androgen receptor inhibitor indicated for the topical treatment of acne vulgaris in patients 12 years and older.10 In two Phase 3 clinical trials (NCT02608450 and NCT02608476), clascoterone cream 1% monotherapy demonstrated superior efficacy vs vehicle for reducing acne severity and had a favorable safety and tolerability profile that was maintained for up to 9 months of treatment in an extension safety study.11-13 While the mechanism of action of clascoterone cream 1% is unknown,10 in vitro data suggest that it competes with dihydrotestosterone to bind androgen receptors and