Phase 2 Chronic Low Back Pain Study
Public ClinicalTrials.gov record NCT01364922. 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 Phase 2, Randomized Withdrawal Study of the Analgesic Efficacy and Safety of Hydrocodone/Acetaminophen Extended Release Compared to Placebo in Subjects With Chronic Low Back Pain
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The primary purpose of this study was to evaluate the analgesic effect and safety of hydrocodone/acetaminophen extended release compared to placebo.
Study identification
- NCT ID
- NCT01364922
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 168 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years to 75 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
- May 31, 2011
- Primary completion
- Sep 30, 2011
- Completion
- Sep 30, 2011
- Last update posted
- Jan 28, 2014
2011
United States locations
- U.S. sites
- 17
- U.S. states
- 12
- U.S. cities
- 17
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Site Reference ID/Investigator# 54875 | Tucson | Arizona | 85704 | — |
| Site Reference ID/Investigator# 54876 | Anaheim | California | 92801 | — |
| Site Reference ID/Investigator# 54877 | Burbank | California | 91505 | — |
| Site Reference ID/Investigator# 54873 | Lomita | California | 90717 | — |
| Site Reference ID/Investigator# 54874 | DeLand | Florida | 32720 | — |
| Site Reference ID/Investigator# 54866 | Oldsmar | Florida | 34677 | — |
| Site Reference ID/Investigator# 54879 | Marietta | Georgia | 30060 | — |
| Site Reference ID/Investigator# 54865 | Valparaiso | Indiana | 46383 | — |
| Site Reference ID/Investigator# 54782 | Prairie Village | Kansas | 66206 | — |
| Site Reference ID/Investigator# 54862 | Pasadena | Maryland | 21122 | — |
| Site Reference ID/Investigator# 54878 | Watertown | Massachusetts | 02472-3930 | — |
| Site Reference ID/Investigator# 54880 | St Louis | Missouri | 63141 | — |
| Site Reference ID/Investigator# 54881 | Williamsville | New York | 14221 | — |
| Site Reference ID/Investigator# 54872 | Cincinnati | Ohio | 45227 | — |
| Site Reference ID/Investigator# 54863 | Marion | Ohio | 43302 | — |
| Site Reference ID/Investigator# 54745 | Killeen | Texas | 76543 | — |
| Site Reference ID/Investigator# 54742 | San Antonio | Texas | 78209-1744 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01364922, 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 Jan 28, 2014 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT01364922 live on ClinicalTrials.gov.