Safety and Efficacy of BI 1744 CL in Patients With Chronic Obstructive Pulmonary Disease II
Conditions
- Pulmonary Disease, Chronic Obstructive
Interventions
- DRUG: Olodaterol (BI 1744)
- DRUG: Olodaterol (BI 1744)
- DRUG: Formoterol
- DRUG: Placebo
Sponsor
Boehringer Ingelheim