# Special Survey Long-term Treatment With Tiotropium on COPD

> **NCT00638183** · — · COMPLETED · sponsor: **Boehringer Ingelheim** · enrollment: 385 (actual)

## Conditions studied

- Pulmonary Disease, Chronic Obstructive

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00638183
- **Lead sponsor:** Boehringer Ingelheim
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2005-04
- **Primary completion:** 2009-01
- **Final completion:** —
- **Target enrollment:** 385 (ACTUAL)
- **Last updated:** 2014-06-19


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00638183

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00638183, "Special Survey Long-term Treatment With Tiotropium on COPD". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT00638183. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*