# Spiriva® 18µg Once Daily in Chinese COPD Patients of Different Disease Severities

> **NCT00621582** · — · COMPLETED · sponsor: **Boehringer Ingelheim** · enrollment: 4918 (actual)

## Conditions studied

- Pulmonary Disease, Chronic Obstructive

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00621582
- **Lead sponsor:** Boehringer Ingelheim
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2006-05
- **Primary completion:** 2008-02
- **Final completion:** —
- **Target enrollment:** 4918 (ACTUAL)
- **Last updated:** 2014-10-23


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00621582

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00621582, "Spiriva® 18µg Once Daily in Chinese COPD Patients of Different Disease Severities". Retrieved via AI Analytics 2026-06-12 from https://api.ai-analytics.org/clinical/NCT00621582. Licensed CC0.

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