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Completed Phase 4 Interventional

Safety and Efficacy of Celecoxib Versus Placebo in the Treatment of Knee Osteoarthritis in Patients Who Were Unresponsive to Naproxen and Ibuprofen

ClinicalTrials.gov ID: NCT00638807

Public ClinicalTrials.gov record NCT00638807. 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 Oct 17, 2026, 9:52 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 Double-Blind, Placebo Controlled Study of the Efficacy and Tolerability of Once Daily Celebrex (Celecoxib) vs. Placebo in the Treatment of Subjects With Osteoarthritis of the Knee Non-Responsive to Naproxen and Ibuprofen

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

To compare the efficacy and safety of celecoxib versus placebo for the treatment of knee osteoarthritis (OA) in patients who were unresponsive to prescription strength naproxen and ibuprofen or who could not tolerate prescription strength naproxen and ibuprofen

Study identification

NCT ID
NCT00638807
Recruitment status
Completed
Study type
Interventional
Phase
Phase 4
Enrollment
388 participants

Conditions and interventions

Interventions

Drug · Other

Eligibility (public fields only)

Age range
40 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 2003 (Type not available)
Primary completion
Not listed
Completion
Jul 2004 (Actual)
Last update posted
Feb 2, 2021

2003 – 2004

United States locations

U.S. sites
33
U.S. states
23
U.S. cities
31
Facility City State ZIP Site status
Pfizer Investigational Site Birmingham Alabama 35235 —
Pfizer Investigational Site Buena Park California 90620 —
Pfizer Investigational Site Denver Colorado 80204 —
Pfizer Investigational Site Washington D.C. District of Columbia 20006 —
Pfizer Investigational Site Longwood Florida 32779 —
Pfizer Investigational Site Miami Florida 33186 —
Pfizer Investigational Site Zephyrhills Florida 33540 —
Pfizer Investigational Site Boise Idaho 83704 —
Pfizer Investigational Site Boise Idaho 83706 —
Pfizer Investigational Site Morton Grove Illinois 60053 —
Pfizer Investigational Site Wichita Kansas 67206 —
Pfizer Investigational Site Wichita Kansas 67214 —
Pfizer Investigational Site Wheaton Maryland 20902 —
Pfizer Investigational Site Springfield Missouri 65807 —
Pfizer Investigational Site Bozeman Montana 59715 —
Pfizer Investigational Site Trenton New Jersey 08611 —
Pfizer Investigational Site Binghamton New York 13901 —
Pfizer Investigational Site Brooklyn New York 11203 —
Pfizer Investigational Site New York New York 10022-1009 —
Pfizer Investigational Site Cary North Carolina 27609 —
Pfizer Investigational Site Winston-Salem North Carolina 27103 —
Pfizer Investigational Site Bismarck North Dakota 58506 —
Pfizer Investigational Site Eugene Oregon 97401 —
Pfizer Investigational Site Portland Oregon 97239 —
Pfizer Investigational Site Duncansville Pennsylvania 16635-0909 —
Pfizer Investigational Site Johnstown Pennsylvania 15904 —
Pfizer Investigational Site Warwick Rhode Island 02886 —
Pfizer Investigational Site Charleston South Carolina 29407 —
Pfizer Investigational Site New Tazewell Tennessee 37825 —
Pfizer Investigational Site San Antonio Texas 78229 —
Pfizer Investigational Site Arlington Virginia 22203 —
Pfizer Investigational Site Norfolk Virginia 23502 —
Pfizer Investigational Site Seattle Washington 98166 —

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 NCT00638807, 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 2, 2021 · Synced Oct 17, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT00638807 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →