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A Multi-center Trial Comparing the Efficacy and Safety of GSK573719/GW642444 With GSK573719 and With Tiotropium Over 24 Weeks in Subjects With COPD
This is a Phase III multicenter, randomized, double-blind, double-dummy, parallel-group study to evaluate the efficacy and safety of two doses of GSK573719/GW642444 Inhalation Powder, GSK573719 Inhalation Powder via a Novel Dry Powder Inhaler and tiotropium via HandiHaler when administered once-daily over a 24-week treatment period in subjects with chronic obstructive pulmonary disease (COPD). Subjects who meet eligibility criteria at Screening (Visit 1) will complete a 7 to10 day run-in period followed by a randomization visit (Visit 2) then a 24-week treatment period. There will be a total of 9 clinic study visits. A follow-up phone contact for adverse event assessment will be conducted approximately one week after the last study visit (Visit 9 or Early Withdrawal). The total duration of subject participation in the study will be approximately 26 weeks. The primary measure of efficacy is clinic visit trough (pre-bronchodilator and pre-dose) forced expiratory volume in one second (FEV1) on Treatment Day 169. Safety will be assessed by adverse events, 12-lead ECGs, vital signs, and clinical laboratory tests.
Details
| Lead sponsor | GlaxoSmithKline |
|---|---|
| Phase | Phase 3 |
| Status | COMPLETED |
| Enrolment | 872 |
| Start date | 2011-03 |
| Completion | 2012-04 |
Conditions
- Pulmonary Disease, Chronic Obstructive
Interventions
- GSK573719/GW642444 125/25
- GSK573719/GW642444 62.5/25
- GSK573719
- tiotropium bromide
Primary outcomes
- Change From Baseline in Clinic Visit Trough Forced Expiratory Volume in One Second (FEV1) at Day 169 — Baseline and Day 169
FEV1 is a measure of lung function and is defined as the maximal amount of air that can be forcefully exhaled in one second. Trough FEV1 measurements were taken electronically by spirometry on Days 2, 28, 56, 84, 112, 168, and 169. Baseline is defined as the mean of the assessments made 30 minutes pre-dose and 5 minutes pre-dose on Treatment Day 1. Trough FEV1 is defined as the mean of the FEV1 values obtained at 23 and 24 hours after the previous morning's dosing (i.e., trough FEV1 on Day 169 is the mean of the FEV1 values obtained 23 and 24 hours after the morning dosing on Day 168). Change from Baseline at a particular visit was calculated as the trough FEV1 at that visit minus Baseline. Analysis was performed using a repeated measures model with covariates of treatment, Baseline, smoking status, center group, day, and day by Baseline and day by treatment interactions. ITT=Intent-to-Treat.
Countries
United States, Argentina, Australia, Canada, Chile, Germany, Mexico, Romania, South Africa, South Korea