Study Evaluating the Efficacy and Safety of Fluticasone Furoate/Vilanterol Inhalation Powder (FF/VI) Compared With Vilanterol Inhalation Powder (VI) in Subjects With Chronic Obstructive Pulmonary Disease (COPD)
Conditions
- Pulmonary Disease, Chronic Obstructive
Interventions
- DRUG: Fluticasone Furoate/Vilanterol
- DRUG: Vilanterol
Sponsor
GlaxoSmithKline