A Study of Pain Relief in Low Back Pain
Public ClinicalTrials.gov record NCT00325949. 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 3, Open-Label Period Followed By a Randomized, Double-Blind, Placebo-Controlled Study of the Analgesic Efficacy and Safety of Extended Release Hydrocodone/Acetaminophen (Vicodin® CR) Compared to Placebo in Subjects With Chronic Low Back Pain
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This is a study of the safety and pain-relieving ability of extended release hydrocodone and acetaminophen tablets in patients with moderate to severe low back pain
Study identification
- NCT ID
- NCT00325949
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 770 participants
Conditions and interventions
Conditions
Interventions
- Extended release hydrocodone and acetaminophen (Vicodin CR) Drug
- hydrocodone/acetaminophen extended release (Vicodin CR) Drug
- placebo Drug
Drug
Eligibility (public fields only)
- Age range
- 21 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 2006 (Type not available)
- Primary completion
- May 2007 (Actual)
- Completion
- Jun 2007 (Actual)
- Last update posted
- Jul 25, 2011
2006 – 2007
United States locations
- U.S. sites
- 63
- U.S. states
- 29
- U.S. cities
- 55
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Site Ref # / Investigator 2216 | Hueytown | Alabama | 35023 | — |
| Site Ref # / Investigator 2605 | Phoenix | Arizona | 85023 | — |
| Site Ref # / Investigator 1990 | Phoenix | Arizona | 85029 | — |
| Site Ref # / Investigator 1974 | Tempe | Arizona | 85282 | — |
| Site Ref # / Investigator 1977 | Tucson | Arizona | 85741 | — |
| Site Ref # / Investigator 1992 | Buena Park | California | 90620 | — |
| Site Ref # / Investigator 1993 | Burbank | California | 91505 | — |
| Site Ref # / Investigator 2219 | Fair Oaks | California | 95628 | — |
| Site Ref # / Investigator 1989 | Los Gatos | California | 95032 | — |
| Site Ref # / Investigator 2157 | Denver | Colorado | 80209 | — |
| Site Ref # / Investigator 1994 | Trumbull | Connecticut | 06611 | — |
| Site Ref # / Investigator 2208 | Clearwater | Florida | 33756 | — |
| Site Ref # / Investigator 2210 | DeLand | Florida | 32720 | — |
| Site Ref # / Investigator 2207 | Hollywood | Florida | 33023 | — |
| Site Ref # / Investigator 2204 | Miami | Florida | 33156 | — |
| Site Ref # / Investigator 2205 | Miami | Florida | 33186 | — |
| Site Ref # / Investigator 2214 | Oldsmar | Florida | 34677 | — |
| Site Ref # / Investigator 2135 | Plantation | Florida | 33324 | — |
| Site Ref # / Investigator 2134 | West Palm Beach | Florida | 33409-3509 | — |
| Site Ref # / Investigator 1975 | Atlanta | Georgia | 30328 | — |
| Site Ref # / Investigator 1991 | Decatur | Georgia | 30033 | — |
| Site Ref # / Investigator 1985 | Chicago | Illinois | 60610 | — |
| Site Ref # / Investigator 1978 | Evansville | Indiana | 47714 | — |
| Site Ref # / Investigator 1988 | West Des Moines | Iowa | 50265 | — |
| Site Ref # / Investigator 2580 | Prairie Village | Kansas | 66206 | — |
| Site Ref # / Investigator 2209 | Metairie | Louisiana | 70006 | — |
| Site Ref # / Investigator 1976 | Shreveport | Louisiana | 71103 | — |
| Site Ref # / Investigator 2203 | Pasadena | Maryland | 21122 | — |
| Site Ref # / Investigator 2603 | Brockton | Massachusetts | 02301 | — |
| Site Ref # / Investigator 2156 | Wellesley Hills | Massachusetts | 02481-2106 | — |
| Site Ref # / Investigator 3420 | Biloxi | Mississippi | 39531 | — |
| Site Ref # / Investigator 2556 | Florissant | Missouri | 63031 | — |
| Site Ref # / Investigator 1980 | St Louis | Missouri | 63141 | — |
| Site Ref # / Investigator 1982 | Missoula | Montana | 59802 | — |
| Site Ref # / Investigator 1986 | Omaha | Nebraska | 68134 | — |
| Site Ref # / Investigator 3421 | Las Vegas | Nevada | 89106 | — |
| Site Ref # / Investigator 2206 | Las Vegas | Nevada | 89123 | — |
| Site Ref # / Investigator 1973 | New York | New York | 10022 | — |
| Site Ref # / Investigator 2578 | Williamsville | New York | 14221 | — |
| Site Ref # / Investigator 1983 | Raleigh | North Carolina | 27609 | — |
| Site Ref # / Investigator 2606 | Raleigh | North Carolina | 27612 | — |
| Site Ref # / Investigator 5161 | Winston-Salem | North Carolina | 27103 | — |
| Site Ref # / Investigator 2218 | Cincinnati | Ohio | 45227 | — |
| Site Ref # / Investigator 1995 | Cincinnati | Ohio | 45242 | — |
| Site Ref # / Investigator 1987 | Cincinnati | Ohio | 45245 | — |
| Site Ref # / Investigator 2211 | Oklahoma City | Oklahoma | 73103 | — |
| Site Ref # / Investigator 2215 | Downingtown | Pennsylvania | 19335 | — |
| Site Ref # / Investigator 2579 | Duncansville | Pennsylvania | 16635 | — |
| Site Ref # / Investigator 2213 | Mechanicsburg | Pennsylvania | 17055 | — |
| Site Ref # / Investigator 2137 | Cranston | Rhode Island | 02920 | — |
| Site Ref # / Investigator 2221 | Greer | South Carolina | 29651 | — |
| Site Ref # / Investigator 1984 | Cordova | Tennessee | 38018 | — |
| Site Ref # / Investigator 2217 | Austin | Texas | 78705 | — |
| Site Ref # / Investigator 2607 | Bulverde | Texas | 78163 | — |
| Site Ref # / Investigator 2590 | Dallas | Texas | 75251 | — |
| Site Ref # / Investigator 2117 | Killeen | Texas | 76543 | — |
| Site Ref # / Investigator 2604 | Nederland | Texas | 77627 | — |
| Site Ref # / Investigator 1979 | Richardson | Texas | 75080 | — |
| Site Ref # / Investigator 2212 | San Angelo | Texas | 76904 | — |
| Site Ref # / Investigator 1981 | San Antonio | Texas | 78127 | — |
| Site Ref # / Investigator 2220 | San Antonio | Texas | 78209 | — |
| Site Ref # / Investigator 2608 | San Antonio | Texas | 78218 | — |
| Site Ref # / Investigator 2158 | Virginia Beach | Virginia | 23454 | — |
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 NCT00325949, 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 Jul 25, 2011 · Synced Oct 24, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT00325949 live on ClinicalTrials.gov.