# An Open-Label Long-term Safety Study of Tramadol HCl OAD (Once A Day) 300 mg in the Treatment of Pain Due to Osteoarthritis of the Knee

> **NCT00833911** · PHASE3 · COMPLETED · sponsor: **Labopharm Inc.** · enrollment: 392 (actual)

## Conditions studied

- Osteoarthritis, Knee

## Interventions

- **DRUG:** Tramadol Once A Day

## Key facts

- **NCT ID:** NCT00833911
- **Lead sponsor:** Labopharm Inc.
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2003-04
- **Primary completion:** 2004-07
- **Final completion:** 2004-07
- **Target enrollment:** 392 (ACTUAL)
- **Last updated:** 2012-04-30


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00833911

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00833911, "An Open-Label Long-term Safety Study of Tramadol HCl OAD (Once A Day) 300 mg in the Treatment of Pain Due to Osteoarthritis of the Knee". Retrieved via AI Analytics 2026-05-25 from https://api.ai-analytics.org/clinical/NCT00833911. Licensed CC0.

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