Study Evaluating the 24-Hour Pulmonary Function Profile of Fluticasone Furoate (FF) /GW642444 (Vilanterol) (VI) Inhalation Powder 100/25mcg Once Daily Compared With Fluticasone Propionate/Salmeterol Inhalation Powder 250/50mcg Twice Daily in Subjects With Chronic Obstructive Pulmonary Disease (COPD)
Conditions
- Pulmonary Disease, Chronic Obstructive
Interventions
- DRUG: Fluticasone Furoate 100mcg/ GW642444 (vilanterol) 25mcg
- DRUG: Fluticasone Propionate 250mcg / salmeterol 50mcg
- DRUG: Double-dummy placebo
- DRUG: Salbutamol as needed
Sponsor
GlaxoSmithKline