# Tiotropium for Smoking Asthmatics Study

> **NCT00546234** · PHASE4 · WITHDRAWN · sponsor: **University of Alberta**

## Conditions studied

- Asthma

## Interventions

- **DRUG:** tiotropium
- **DRUG:** long acting beta agonist

## Key facts

- **NCT ID:** NCT00546234
- **Lead sponsor:** University of Alberta
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2007-11
- **Primary completion:** 2014-01
- **Final completion:** 2014-01
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** No subjects enrolled and no ongoing funding.
- **Last updated:** 2016-05-26


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00546234

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00546234, "Tiotropium for Smoking Asthmatics Study". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT00546234. Licensed CC0.

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