Evaluation of Tiotropium 2.5 and 5 µg Once Daily Delivered Via the Respimat Inhaler Compared to Placebo in Patient With Moderate to Severe Persistent Asthma
Conditions
Interventions
- DRUG: Tiotropium Respimat
- DRUG: Placebo Respimat
- DRUG: Tiotropium Respimat
Sponsor
Boehringer Ingelheim
Collaborators