# Effects of Once Daily Tiotropium in Patients With Chronic Obstructive Pulmonary Disease (COPD) of Different Severity

> **NCT00274573** · PHASE3 · COMPLETED · sponsor: **Boehringer Ingelheim** · enrollment: 1639 (actual)

## Conditions studied

- Pulmonary Disease, Chronic Obstructive

## Interventions

- **DRUG:** Tiotropium bromide

## Key facts

- **NCT ID:** NCT00274573
- **Lead sponsor:** Boehringer Ingelheim
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2002-03
- **Primary completion:** 2002-10
- **Final completion:** —
- **Target enrollment:** 1639 (ACTUAL)
- **Last updated:** 2013-11-21


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00274573

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00274573, "Effects of Once Daily Tiotropium in Patients With Chronic Obstructive Pulmonary Disease (COPD) of Different Severity". Retrieved via AI Analytics 2026-09-25 from https://api.ai-analytics.org/clinical/NCT00274573. Licensed CC0.

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