Dataset from A Multicenter, Randomized, Double-blind, Parallel-group Study to Evaluate the Efficacy and Safety of the Addition of Umeclidinium Bromide (62.5mcg) Once-daily to Fluticasone Propionate/Salmeterol (250/50mcg) Twice-daily, Umeclidinium Bromide (125mcg) Once-daily to Fluticasone Propionate/Salmeterol (250/50mcg) Twice-daily Versus Placebo to Fluticasone Propionate/Salmeterol (250/50mcg) Twice-daily Over 12 Weeks With COPD

The purpose of this 12 week study is to evaluate the effects of the addition of umeclidinium bromide (62.5mcg) once-daily to fluticanse propionate/salmeterol (250/50mcg) twice-daily, umeclidinium bromide (125mcg) once-daily to fluticanse propionate/salmeterol (250/50mcg) twice-daily versus placebo to fluticanse propionate/salmeterol (250/50mcg) twice-daily on lung function, COPD-related health status assessments and safety in COPD subjects.