Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Phase 3 Interventional Results available

A Six Week Study Of The Pain Relieving Effects Of Celecoxib 200 Mg Twice Daily Compared To Tramadol 50 Mg Four Times Daily In Patients With Chronic Low Back Pain

ClinicalTrials.gov ID: NCT00662558

Public ClinicalTrials.gov record NCT00662558. 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.

ClinicalTrials.gov public records Last synced Jun 26, 2026, 1:32 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Six Week Double-Blind, Randomized, Multicenter Comparison Study Of The Analgesic Effectiveness Of Celecoxib 200 Mg BID Compared To Tramadol Hydrochloride 50 Mg QID In Subjects With Chronic Low Back Pain

Study identification

NCT ID
NCT00662558
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Industry
Enrollment
802 participants

Conditions and interventions

Conditions

Interventions

  • celecoxib Drug
  • tramadol HCL Drug

Drug

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
Dec 31, 2007
Primary completion
Aug 31, 2008
Completion
Aug 31, 2008
Last update posted
Feb 20, 2021

2008

United States locations

U.S. sites
60
U.S. states
23
U.S. cities
52
Facility City State ZIP Site status
Pfizer Investigational Site Birmingham Alabama 35126
Pfizer Investigational Site Birmingham Alabama 35235
Pfizer Investigational Site Birmingham Alabama 35242
Pfizer Investigational Site Phoenix Arizona 85023
Pfizer Investigational Site Little Rock Arkansas 72205
Pfizer Investigational Site Anaheim California 92801
Pfizer Investigational Site Long Beach California 90806
Pfizer Investigational Site Oceanside California 92056
Pfizer Investigational Site Sacramento California 95823
Pfizer Investigational Site Sacramento California 95825
Pfizer Investigational Site Wildomar California 92595
Pfizer Investigational Site Boulder Colorado 80304
Pfizer Investigational Site Colorado Springs Colorado 80904
Pfizer Investigational Site Denver Colorado 80220
Pfizer Investigational Site Cos Cob Connecticut 06807
Pfizer Investigational Site Jacksonville Florida 32216
Pfizer Investigational Site Jacksonville Florida 32257
Pfizer Investigational Site Pinellas Park Florida 33781
Pfizer Investigational Site West Palm Beach Florida 33409
Pfizer Investigational Site Woodstock Georgia 30189
Pfizer Investigational Site Wichita Kansas 67206
Pfizer Investigational Site Wichita Kansas 67214
Pfizer Investigational Site Baton Rouge Louisiana 70809
Pfizer Investigational Site Baltimore Maryland 21218
Pfizer Investigational Site Columbia Maryland 21045
Pfizer Investigational Site Rockville Maryland 20852
Pfizer Investigational Site Wheaton Maryland 20902
Pfizer Investigational Site Saint Paul Minnesota 55108
Pfizer Investigational Site Jackson Mississippi 39202
Pfizer Investigational Site Springfield Missouri 65807
Pfizer Investigational Site St Louis Missouri 63141
Pfizer Investigational Site Omaha Nebraska 68134
Pfizer Investigational Site New Windsor New York 12553
Pfizer Investigational Site New York New York 10022-1009
Pfizer Investigational Site Rochester New York 14618
Pfizer Investigational Site Williamsville New York 14221
Pfizer Investigational Site Portland Oregon 97219
Pfizer Investigational Site Bridgeville Pennsylvania 15017
Pfizer Investigational Site Camp Hill Pennsylvania 17011
Pfizer Investigational Site Columbia South Carolina 29204
Pfizer Investigational Site North Charleston South Carolina 29406
Pfizer Investigational Site Bristol Tennessee 37620
Pfizer Investigational Site Collierville Tennessee 38017
Pfizer Investigational Site Johnson City Tennessee 37601
Pfizer Investigational Site Kingsport Tennessee 37660
Pfizer Investigational Site New Tazewell Tennessee 37825
Pfizer Investigational Site Austin Texas 78705
Pfizer Investigational Site Beaumont Texas 77701
Pfizer Investigational Site Beaumont Texas 77706
Pfizer Investigational Site Dallas Texas 75230
Pfizer Investigational Site Dallas Texas 75240
Pfizer Investigational Site Grapevine Texas 76051
Pfizer Investigational Site Houston Texas 77074
Pfizer Investigational Site Lake Jackson Texas 77566
Pfizer Investigational Site San Angelo Texas 76904
Pfizer Investigational Site San Antonio Texas 78217
Pfizer Investigational Site San Antonio Texas 78229
Pfizer Investigational Site Salt Lake City Utah 84107
Pfizer Investigational Site Richmond Virginia 23294
Pfizer Investigational Site Weber City Virginia 24290

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 NCT00662558, 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 Feb 20, 2021 · Synced Jun 26, 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 protocol, eligibility criteria, and contact information for NCT00662558 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →