Conditions: Pulmonary Disease, Chronic Obstructive
Allocation:  | Intervention model: PARALLEL
Enrollment: 349
Healthy volunteers: no

Brief summary:
The objective of this study is to evaluate the efficacy and safety of 12 weeks treatment with tiotropium HandiHaler 18 micrograms (mcg) daily compared to Combivent Metered Dose Inhaler (MDI) Chlorofluorocarbon Inhalation Aerosol 2 actuations four times a day in Chronic Obstructive Pulmonary Disease (COPD) patients currently prescribed Combivent® MDI.

Detailed description:

Arms:

Interventions: intervention 1: tiotropium intervention 2: Combivent (Ipratropium/Albuterol)
Intervention descriptions: intervention 1: None intervention 2: None

Protocol document: