Overview Study of Trospium Chloride Inhalation Powder (TrIP) in Patients With Chronic Obstructive Pulmonary Disease Status: Completed Trial end date: 2007-06-01 Target enrollment: Participant gender: Summary To assess the effect of a single dose of TrIP on pulmonary function in patients with COPD Phase: Phase 1/Phase 2 Details Lead Sponsor: Endo PharmaceuticalsCollaborator: Alkermes, Inc.Treatments: Trospium chloride