Tapinarof Cream 1% for Extensive Plaque Psoriasis: A Maximal Use Trial on Safety, Tolerability, and Pharmacokinetics.

BACKGROUND: Tapinarof is a novel topical therapeutic aryl hydrocarbon receptor modulating agent in development for the treatment of psoriasis and atopic dermatitis. OBJECTIVE: This multicenter, open-label trial assessed the safety, tolerability, pharmacokinetics (PK), and efficacy of tapinarof cream 1% once daily (QD) under maximal use conditions in extensive plaque psoriasis. METHODS: Adults with a baseline Physician Global Assessment (PGA) score of ≥ 3 and body surface area (BSA) involvement ≥ 20% received tapinarof cream 1% QD for 29 days. Safety and tolerability assessments included adverse events (AEs) and local tolerability scales. PK parameters were calculated using non-compartmental analysis. Efficacy assessments included change in PGA, Psoriasis Area and Severity Index score, and %BSA affected. RESULTS: Twenty-one patients were enrolled. Common AEs were folliculitis, headache, back pain, and pruritus (none led to discontinuation). Tapinarof plasma exposure was low, with the majority of concentrations being below detectable limits. At day 29, 14 patients (73.7%) had a ≥ 1-grade improvement in PGA score and six patients (31.6%) had a ≥ 2-grade improvement; four patients (21.1%) achieved treatment success (PGA 0 or 1 and ≥ 2-grade improvement). CONCLUSION: Tapinarof cream 1% QD was well tolerated, with limited systemic exposure and significant efficacy at 4 weeks in patients with extensive plaque psoriasis. ClinicalTrials.gov Identifier NCT04042103.

Efficacy and safety of a novel topical minocycline foam for the treatment of moderate to severe acne vulgaris: A phase 3 study.

BACKGROUND: FMX101 4% topical minocycline foam has been shown to be an effective and safe treatment for acne vulgaris (AV). OBJECTIVE: To further evaluate the efficacy and safety of FMX101 4% in treating moderate to severe acne vulgaris. METHODS: A 12-week, multicenter, randomized (1:1), double-blind, vehicle-controlled study was conducted. Coprimary end points were the absolute change in inflammatory lesion count from baseline and the rate of treatment success (Investigator's Global Assessment score of 0 or 1 with a ≥2-grade improvement). RESULTS: There were 1488 participants in the intent-to-treat population. The FMX101 4% group had significantly greater reductions in the number of inflammatory lesions from baseline (P < .0001) and a greater rate of treatment success based on Investigator's Global Assessment (P < .0001) versus the foam vehicle group at week 12. FMX101 4% was generally safe and well tolerated. LIMITATIONS: The efficacy and safety of FMX101 4% were not characterized in participants with mild AV. CONCLUSION: FMX101 4% topical minocycline foam was effective and safe for the treatment of moderate to severe AV.