A Study to Evaluate Long-Term Safety of Multiple Doses of Tapentadol (CG5503) Prolonged-Release (PR) and Oxycodone Controlled-Release (CR) in Patients With Chronic Pain
Public ClinicalTrials.gov record NCT00361504. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A One-Year, Randomized, Open-Label, Parallel-Arm, Phase 3 Long-Term Safety Trial, With Controlled Adjustment of Dose, of Multiple Doses of CG5503 PR and Oxycodone CR in Subjects With Chronic Pain
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The purpose of this study is to evaluate the safety profile of tapentadol (CG5503) PR at doses of 100 mg - 250 mg administered twice daily over a maximum one year period to patients with at least a 3-month history of low back pain, or pain caused by knee or hip osteoarthritis.
Study identification
- NCT ID
- NCT00361504
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 1,123 participants
Conditions and interventions
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Nov 2006 (Type not available)
- Primary completion
- Jul 2008 (Actual)
- Completion
- Jul 2008 (Actual)
- Last update posted
- Apr 29, 2014
2006 – 2008
United States locations
- U.S. sites
- 40
- U.S. states
- 21
- U.S. cities
- 40
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Not listed | Mesa | Arizona | — | — |
| Not listed | Tucson | Arizona | — | — |
| Not listed | Anaheim | California | — | — |
| Not listed | Cudahy | California | — | — |
| Not listed | Encinitas | California | — | — |
| Not listed | San Diego | California | — | — |
| Not listed | Westlake Village | California | — | — |
| Not listed | Trumbull | Connecticut | — | — |
| Not listed | Chiefland | Florida | — | — |
| Not listed | Clearwater | Florida | — | — |
| Not listed | Jacksonville | Florida | — | — |
| Not listed | Oldsmar | Florida | — | — |
| Not listed | Atlanta | Georgia | — | — |
| Not listed | Cumming | Georgia | — | — |
| Not listed | Decatur | Georgia | — | — |
| Not listed | Perry | Georgia | — | — |
| Not listed | Suwanee | Georgia | — | — |
| Not listed | Woodstock | Georgia | — | — |
| Not listed | Indianapolis | Indiana | — | — |
| Not listed | Prairie Village | Kansas | — | — |
| Not listed | Topeka | Kansas | — | — |
| Not listed | Paducah | Kentucky | — | — |
| Not listed | Baton Rouge | Louisiana | — | — |
| Not listed | Rockville | Maryland | — | — |
| Not listed | Wellesley Hills | Massachusetts | — | — |
| Not listed | Kalamazoo | Michigan | — | — |
| Not listed | Las Vegas | Nevada | — | — |
| Not listed | Mamaroneck | New York | — | — |
| Not listed | Williamsville | New York | — | — |
| Not listed | Raleigh | North Carolina | — | — |
| Not listed | Winston-Salem | North Carolina | — | — |
| Not listed | Kettering | Ohio | — | — |
| Not listed | Medford | Oregon | — | — |
| Not listed | Duncansville | Pennsylvania | — | — |
| Not listed | Philadelphia | Pennsylvania | — | — |
| Not listed | Pittsburgh | Pennsylvania | — | — |
| Not listed | Greenville | South Carolina | — | — |
| Not listed | Houston | Texas | — | — |
| Not listed | San Antonio | Texas | — | — |
| Not listed | Roanoke | Virginia | — | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 12 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00361504, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Apr 29, 2014 · Synced Oct 21, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT00361504 live on ClinicalTrials.gov.