# Comparative Pharmacokinetics and Pharmacodynamics of Tiotropium With Ipratropium or Placebo After 19 Days of Tiotropium Treatment

> **NCT02172781** · PHASE1 · COMPLETED · sponsor: **Boehringer Ingelheim** · enrollment: 36 (actual)

## Conditions studied

- Healthy

## Interventions

- **DRUG:** Ipratropium - unit dose vial
- **DRUG:** Tiotropium - inhalation capsule
- **DRUG:** Placebo matching tiotropium
- **DRUG:** Placebo matching ipratropium

## Key facts

- **NCT ID:** NCT02172781
- **Lead sponsor:** Boehringer Ingelheim
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2001-01
- **Primary completion:** 2001-04
- **Final completion:** —
- **Target enrollment:** 36 (ACTUAL)
- **Last updated:** 2014-06-24


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02172781

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02172781, "Comparative Pharmacokinetics and Pharmacodynamics of Tiotropium With Ipratropium or Placebo After 19 Days of Tiotropium Treatment". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT02172781. Licensed CC0.

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