# Role of Methadone As Co-Opioid Analgesic

> **NCT00558870** · PHASE2 · TERMINATED · sponsor: **M.D. Anderson Cancer Center** · enrollment: 5 (actual)

## Conditions studied

- Pain

## Interventions

- **DRUG:** Morphine
- **DRUG:** Methadone

## Key facts

- **NCT ID:** NCT00558870
- **Lead sponsor:** M.D. Anderson Cancer Center
- **Sponsor class:** OTHER
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** TERMINATED
- **Start date:** 2007-11
- **Primary completion:** 2015-01
- **Final completion:** 2015-01
- **Target enrollment:** 5 (ACTUAL)
- **Why stopped:** Low Accrual.
- **Last updated:** 2016-04-05


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00558870

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00558870, "Role of Methadone As Co-Opioid Analgesic". Retrieved via AI Analytics 2026-08-17 from https://api.ai-analytics.org/clinical/NCT00558870. Licensed CC0.

---

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