# Tiotropium and Salmeterol PK Study in COPD Patients

> **NCT00673478** · PHASE3 · COMPLETED · sponsor: **Boehringer Ingelheim** · enrollment: 50 (actual)

## Conditions studied

- Pulmonary Disease, Chronic Obstructive

## Interventions

- **DRUG:** Tiotropium+Salmeterol
- **DRUG:** Salmeterol
- **DRUG:** Tiotropium

## Key facts

- **NCT ID:** NCT00673478
- **Lead sponsor:** Boehringer Ingelheim
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2008-05
- **Primary completion:** 2009-06
- **Final completion:** —
- **Target enrollment:** 50 (ACTUAL)
- **Last updated:** 2014-05-16


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00673478

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00673478, "Tiotropium and Salmeterol PK Study in COPD Patients". Retrieved via AI Analytics 2026-07-18 from https://api.ai-analytics.org/clinical/NCT00673478. Licensed CC0.

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