Comparative Study of ELLIPTA Dry Powder Inhaler (DPI) Versus DISKUS DPI Used With HandiHaler DPI in Subjects With Chronic Obstructive Pulmonary Disease (COPD)

This randomized, cross over study aims to find out the benefits of delivering triple therapy using a single ELLIPTA® DPI (fixed-dose combination triple therapy) versus delivering triple therapy using two different types of inhalers (open triple therapy) including DISKUS® with HandiHaler® to subjects with COPD. Correct inhaler use, critical errors and performance attributes will also be assessed. Approximately 240 subjects with COPD will be randomized in the study. The study will be conducted in 3 visits and will be completed in approximately 56 days. At Visit 1 (Day 1) and Visit 2 (Day 28) subjects will be randomized to receive a placebo ELLIPTA inhaler once daily (QD) or a placebo DISKUS twice daily (BID) with placebo HandiHaler QD inhaler in 1:1 ratio in a cross-over manner for the study period (28 days for each period). At Visit 3 (Day 56), subjects will be asked to complete preference questionnaire 1 or 2. There will be no active treatment and subjects will continue to take their own prescribed COPD maintenance and rescue medication during the entire study period. ELLIPTA and DISKUS are the registered trademarks of GlaxoSmithKline group of companies. HandiHaler is the registered trademark of Boehringer Ingelheim group of companies.