# Impact of CYP3A4*1G Polymorphism on Metabolism of Fentanyl in Chinese Patients Undergoing Lower Abdominal Surgery

> **NCT01181492** · — · COMPLETED · sponsor: **Huazhong University of Science and Technology** · enrollment: 176 (actual)

## Conditions studied

- Pain
- Surgery

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT01181492
- **Lead sponsor:** Huazhong University of Science and Technology
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2008-11
- **Primary completion:** 2010-04
- **Final completion:** 2010-04
- **Target enrollment:** 176 (ACTUAL)
- **Last updated:** 2013-11-01


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01181492

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01181492, "Impact of CYP3A4*1G Polymorphism on Metabolism of Fentanyl in Chinese Patients Undergoing Lower Abdominal Surgery". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT01181492. Licensed CC0.

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