Overview Dose Finding Study in COPD Status: Completed Trial end date: 1969-12-31 Target enrollment: Participant gender: Summary The primary objective of this study is to determine the optimum dose of BEA 2180 BR inhalation solut ion delivered by the Respimat ? inhaler once daily for four weeks in patients with COPD. Phase: Phase 2 Details Lead Sponsor: Boehringer IngelheimTreatments: Tiotropium Bromide