Overview Tiotropium In Exercise Status: Completed Trial end date: 1969-12-31 Target enrollment: Participant gender: Summary The objective of this study is to evaluate the effects on exercise duration of 96 weeks treatment with 18 mcg tiotropium (Spiriva HandiHaler) daily as compared to placebo, in patients with COPD. Phase: Phase 4 Details Lead Sponsor: Boehringer IngelheimCollaborator: PfizerTreatments: Tiotropium Bromide