Comparison of Tiotropium and Ipratropium in a Double-Blind, Double-dummy, Efficacy and Safety Study in Adults With COPD
A Comparison of 18 μg of Tiotropium Inhalation Capsules and Atrovent Metered Dose Inhaler (2 Puffs of 20 μg, 4 Times Daily) in a Double-Blind, Double-Dummy, Efficacy and Safety Study in Adults With Chronic Obstructive Pulmonary Disease (COPD).
Sponsor: Boehringer Ingelheim
Listed as NCT00274040, this PHASE3 trial focuses on Pulmonary Disease, Chronic Obstructive and remains completed. Sponsored by Boehringer Ingelheim, it has been updated 6 times since 2002, reflecting limited change activity. This study adds to the evidence base for this therapeutic area through structured, versioned documentation.
Status Flow
Change History
6 versions recorded-
Sep 2025 — Present [monthly]
Completed PHASE3
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Sep 2024 — Sep 2025 [monthly]
Completed PHASE3
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Jul 2024 — Sep 2024 [monthly]
Completed PHASE3
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Jan 2021 — Jul 2024 [monthly]
Completed PHASE3
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Jun 2018 — Jan 2021 [monthly]
Completed PHASE3
▶ Show 1 earlier version
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Jan 2017 — Jun 2018 [monthly]
Completed PHASE3
First recorded
Jul 2002
Trial started
Per CT.gov start date — pre-dates our first snapshot
Eligibility Summary
No eligibility information available.
Contact Information
- Boehringer Ingelheim
For direct contact, visit the study record on ClinicalTrials.gov .