Efficacy and Safety of 4 Weeks Treatment With Inhaled BI 1744 CL in Japanese Patients With COPD
Conditions
- Pulmonary Disease, Chronic Obstructive
Interventions
- DRUG: BI 1744 CL 2 µg
- DRUG: BI 1744 CL 5 µg
- DRUG: BI 1744 CL 10 µg
- DRUG: Placebo
Sponsor
Boehringer Ingelheim