# The Effect of Choice of Intraoperative Opioid on Postoperative Pain

> **NCT01542645** · PHASE4 · COMPLETED · sponsor: **Endeavor Health** · enrollment: 164 (actual)

## Conditions studied

- Pain, Postoperative
- Chronic Pain

## Interventions

- **DRUG:** Methadone
- **DRUG:** Fentanyl

## Key facts

- **NCT ID:** NCT01542645
- **Lead sponsor:** Endeavor Health
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2010-09
- **Primary completion:** 2013-11
- **Final completion:** 2014-09
- **Target enrollment:** 164 (ACTUAL)
- **Last updated:** 2019-09-30


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01542645

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01542645, "The Effect of Choice of Intraoperative Opioid on Postoperative Pain". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT01542645. Licensed CC0.

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