A Phase 2, Randomized, Controlled, Dose-Ranging Study Evaluating Crisaborole Topical Ointment, 0.5% and 2% in Adolescents With Mild to Moderate Atopic Dermatitis
December 2015 | Volume 14 | Issue 12 | Original Article | 1394 | Copyright © December 2015
Linda F. Stein Gold MD,a Lynda Spelman MBBS FACD,b Mary C. Spellman MD,c Matilda H. Hughes CCRA,d and Lee T. Zane MDd
aHenry Ford Medical Center, Detroit, MI
bVeracity Clinical Research, Woolloongabba, Queensland, Australia
cPrivate Practice, San Francisco, CA
dAnacor Pharmaceuticals, Palo Alto, CA, USA
METHODS: In this multicenter, randomized, double-blind, dose-ranging, phase 2 study, adolescent patients 12 to 17 years of age with mild to moderate AD and 2 distinct target AD lesions were randomized to once-daily (QD) or twice-daily (BID) treatment with crisaborole topical ointment. For each patient, 2 target lesions were randomized to receive 29 days of treatment with 0.5% or 2% crisaborole topical ointment. The primary endpoint was change from baseline in AD severity index (ADSI) score for each lesion. Exploratory efficacy endpoints and safety were also assessed.
RESULTS: A total of 86 patients were enrolled and received crisaborole topical ointment 0.5% or 2% QD (n=44) or BID (n=42). All dosing regimens produced dose-related improvements in ADSI as well as in all 5 component signs and symptoms of AD (erythema, excoriation, exudation, lichenification, and pruritus). The greatest improvements were consistently observed with crisaborole topical ointment, 2% applied BID. With this regimen, ADSI improved from baseline by 71%, and total or partial clearance of target lesions (ADSI ≤2) was achieved by 62% of patients after 29 days of treatment. Both doses of crisaborole topical ointment were well tolerated; mild application site reactions were the only treatment-related adverse events (QD, n=3; BID, n=1).
CONCLUSION: These results provide preliminary evidence of the efficacy and safety of crisaborole topical ointment, 2% applied topically BID in adolescents with mild to moderate AD.
J Drugs Dermatol. 2015;14(12):1394-1399.