Fixed Dose Combination Versus Free Combination of Tiotropium and Olodaterol in COPD
Conditions
- Pulmonary Disease, Chronic Obstructive
Interventions
- DRUG: FDC of tiotropium + olodaterol
- DRUG: Placebo
- DRUG: Tiotropium
- DRUG: Olodaterol
Sponsor
Boehringer Ingelheim