# Buprenorphine Transdermal System (BTDS) in Subjects w/Mod-sev Osteoarthritis (OA) Chronic Pain of Knee

> **NCT00531427** · PHASE3 · COMPLETED · sponsor: **Purdue Pharma LP** · enrollment: 567 (actual)

## Conditions studied

- Chronic Pain
- Osteoarthritis of the Knee

## Interventions

- **DRUG:** Buprenorphine
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT00531427
- **Lead sponsor:** Purdue Pharma LP
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2007-09
- **Primary completion:** 2009-04
- **Final completion:** 2009-11
- **Target enrollment:** 567 (ACTUAL)
- **Last updated:** 2012-09-10


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00531427

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00531427, "Buprenorphine Transdermal System (BTDS) in Subjects w/Mod-sev Osteoarthritis (OA) Chronic Pain of Knee". Retrieved via AI Analytics 2026-08-19 from https://api.ai-analytics.org/clinical/NCT00531427. Licensed CC0.

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