A Two-Arm Study Comparing the Analgesic Efficacy and Safety of Acetaminophen and Tramadol Combination BID Versus Placebo for the Treatment of Acute Low Back Pain
Public ClinicalTrials.gov record NCT00643383. 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.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
A multi-center placebo controlled, double-blind, trial comparing the analgesic efficacy and safety of Acetram Contramid® BID versus placebo for the treatment of acute low back pain in patients between 18 and 80 yrs of age.
Study identification
- NCT ID
- NCT00643383
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 277 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years to 80 Years
- 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
- Mar 2008 (Type not available)
- Primary completion
- Jan 2009 (Actual)
- Completion
- Feb 2009 (Actual)
- Last update posted
- May 1, 2012
2008 – 2009
United States locations
- U.S. sites
- 18
- U.S. states
- 13
- U.S. cities
- 17
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Not listed | Montgomery | Alabama | 36117 | — |
| Not listed | Centennial | Colorado | 80112 | — |
| Not listed | Hialeah | Florida | 33013 | — |
| Not listed | Largo | Florida | 33770 | — |
| Not listed | New Port Richey | Florida | 34652 | — |
| Not listed | Indianapolis | Indiana | 46254 | — |
| Not listed | Waterloo | Iowa | 50702 | — |
| Not listed | Baton Rouge | Louisiana | 70809 | — |
| Not listed | Brockton | Massachusetts | 02301 | — |
| Not listed | Minneapolis | Minnesota | 55415 | — |
| Not listed | Oklahoma City | Oklahoma | 73112 | — |
| Not listed | Rapid City | South Dakota | 57702 | — |
| Not listed | Crossville | Tennessee | 38555 | — |
| Not listed | Bryan | Texas | 77082 | — |
| Not listed | Dallas | Texas | 75235 | — |
| Not listed | Houston | Texas | 77074 | — |
| Not listed | Salt Lake City | Utah | 84109 | — |
| Not listed | Salt Lake City | Utah | 84121 | — |
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 20 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00643383, 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 May 1, 2012 · Synced Oct 19, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT00643383 live on ClinicalTrials.gov.