Dataset from A Randomized, Single-Blind, Dose-Rising Study to Evaluate the Safety, Tolerability and Preliminary Pharmacokinetics of Single and 14 Day Repeat Topical Applications of GSK1940029 Gel on the Intact Skin of Healthy Human Subjects

The proposed indication for GSK1940029 is topical treatment of acne, the early clinical plan will evaluate the irritation potential of GSK1940029 (Study SCD117225 - 3 Part study); and safety, tolerability and pharmacokinetics of GSK1940029 (Study SCD117226 - 2 Part study), after topical administration on healthy subjects and acne patients. Study SCD117226 will be a randomized, single-blind, dose-rising study to evaluate the safety, tolerability and preliminary pharmacokinetics of single and 14 day repeat topical applications of GSK1940029 gel on the intact skin of healthy human subjects. Part 1: (single-dose) subjects will receive 0.3% or 1% GSK1940029 (or matching vehicle), as a single approximately (App) 24 hour (h) (22.5h) application to a surface area of 400 square centimeter (cm^2) (0.3%), 400 cm^2 (1%) or 1200 cm^2 (1%), respectively, in each of three sequential cohorts. Part 2: (repeat-dose) subjects will receive 0.3% or 1% GSK1940029 (or matching vehicle), as 14 daily App24h (22.5h) application to a surface area of 400 cm^2 (0.3%), 400 cm^2 (1%) or 1200 cm^2 (1%), respectively, in each of three sequential cohorts. Parts within Study SCD117225 and Study SCD117226 will have interdependencies. No significant primary irritation signal in Study SCD117225 Part 1 (primary irritation) would allow initiation of Study SCD117226 Part 1. Once safety, tolerability and exposure information are determined in Study SCD117226 Part 1, then Part 2 (cumulative irritation) of Study SCD117225 may be initiated along with Part 2 of Study SCD117226. No significant cumulative irritation signal (study SCD117225 Part 2) in combination with adequate 14-day safety (study SCD117226 Part 2) would allow initiation of Part 3 (facial irritation) of Study SCD117225.