# Development of Cocktail for Measuring the Activity of Important Cytochrome P450 Enzymes

> **NCT00981929** · NA · TERMINATED · sponsor: **University of Southern Denmark** · enrollment: 412 (estimated)

## Conditions studied

- Cytochrome P450 Phenotype and Genotype Metrics

## Interventions

- **DRUG:** Tramadol
- **DRUG:** Omeprazole, losartan, caffeine
- **DRUG:** Tramadol, omeprazole, losartan, caffeine

## Key facts

- **NCT ID:** NCT00981929
- **Lead sponsor:** University of Southern Denmark
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** TERMINATED
- **Start date:** 2009-09
- **Primary completion:** 2009-12
- **Final completion:** 2011-01
- **Target enrollment:** 412 (ESTIMATED)
- **Why stopped:** Unexpected non-serious adverse events
- **Last updated:** 2010-06-28

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00981929

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00981929, "Development of Cocktail for Measuring the Activity of Important Cytochrome P450 Enzymes". Retrieved via AI Analytics 2026-06-30 from https://api.ai-analytics.org/clinical/NCT00981929. Licensed CC0.

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