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Novel tretinoin 0.05% lotion for the once‐daily treatment of moderate‐to‐severe acne vulgaris in a preadolescent population
Author(s) -
Eichenfield Lawrence F.,
Sugarman Jeffrey L.,
Guenin Eric,
Harris Susan,
Bhatt Varsha
Publication year - 2019
Publication title -
pediatric dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.542
H-Index - 73
eISSN - 1525-1470
pISSN - 0736-8046
DOI - 10.1111/pde.13744
Subject(s) - lotion , medicine , tolerability , acne , tretinoin , dermatology , adverse effect , randomized controlled trial , population , erythema , post hoc analysis , surgery , retinoic acid , biochemistry , chemistry , environmental health , pharmacology , gene
Abstract Background Acne vulgaris (acne) is a common skin condition in children and adolescents. Efficacy of tretinoin is well documented in studies that included pediatric patients (12‐18 years of age). With acne routinely presenting in younger patients, data are needed in this important group. Lotion formulations are commonly used across dermatology and are well liked by patients. Objective To evaluate the safety and efficacy of a novel once‐daily tretinoin 0.05% lotion in preadolescent subjects (≤ 13 years) with moderate‐to‐severe acne. Methods Post hoc analysis of two multicenter, randomized, double‐blind, vehicle‐controlled phase 3 studies in moderate‐to‐severe acne. Preadolescent subjects (N = 154) randomized (1:1) to receive tretinoin 0.05% lotion or vehicle, once daily for 12 weeks. Efficacy assessments included changes in baseline inflammatory/noninflammatory lesions and treatment success (at least 2‐grade reduction in Evaluator's Global Severity Score [EGSS] and clear/almost clear). Safety, adverse events (AEs), and cutaneous tolerability evaluated throughout. Results At Week 12, mean percent reduction in inflammatory and noninflammatory lesion counts were 49.5% and 44.0% compared with 31.4% and 18.8% with vehicle (both P = 0.001). Treatment success was achieved by 23.7% of subjects by Week 12, compared with 7.2% ( P = 0.009). The majority of AEs were mild and transient: most frequently were application site pain (5.6%) and application site dryness (2.8%). Local cutaneous safety and tolerability assessments were generally mild‐to‐moderate and improved by Week 12. Conclusions Tretinoin 0.05% lotion was significantly more effective than vehicle in achieving treatment success and reducing inflammatory and noninflammatory lesions in preadolescent acne. It was well tolerated, with all treatment‐related AEs deemed mild or moderate.