Glucosamine/Chondroitin Arthritis Intervention Trial (GAIT)
Open the official record
This page only displays public information reproduced from the official ClinicalTrials.gov record NCT00032890. It adds no medical advice, opinions, or eligibility judgments. The official record remains the source of truth for eligibility criteria, enrollment, and contact information.
All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study will determine whether glucosamine, chondroitin sulfate and/or the combination of glucosamine and chondroitin sulfate are more effective than placebo and whether the combination is more effective than glucosamine or chondroitin sulfate alone in the treatment of knee pain associated with osteoarthritis (OA) of the knee after six months of follow-up. These substances, marketed in the United States as dietary supplements, have been widely touted by the lay press and by anecdotal personal experience as effective in treating OA. To date, however, only a few small studies have been published in the worldwide literature. The study proposed herein has been carefully constructed to definitively determine the efficacy of these agents.
Study identification
- NCT ID
- NCT00032890
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 1,588 participants
Conditions and interventions
Conditions
Interventions
- glucosamine Drug
- chondroitin sulfate Drug
- glucosamine and chondroitin sulfate combined Drug
- celecoxib Drug
Drug
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
- Apr 2000 (Type not available)
- Primary completion
- Not listed
- Completion
- Feb 2004 (Type not available)
- Last update posted
- Jan 21, 2009
2000 – 2004
United States locations
- U.S. sites
- 16
- U.S. states
- 13
- U.S. cities
- 15
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of Alabama at Birmingham | Birmingham | Alabama | 35294-7201 | — |
| *University of Arizona Arthritis Center | Tucson | Arizona | 85724 | — |
| *Cedars-Sinai Medical Center | Los Angeles | California | 90048 | — |
| *University of California, Los Angeles | Los Angeles | California | 90095 | — |
| *University of California San Francisco | San Francisco | California | 94110 | — |
| Northwestern University | Chicago | Illinois | 60611 | — |
| *Indiana University School of Medicine | Indianapolis | Indiana | 46202-5103 | — |
| *Arthritis Research and Clinical Centers | Wichita | Kansas | 67214 | — |
| University of Nebraska Medical Center | Omaha | Nebraska | 68198-3025 | — |
| Hospital for Joint Diseases | New York | New York | 10003 | — |
| *Case Western Reserve University | Beachwood | Ohio | 44122 | — |
| University of Pennsylvania | Philadelphia | Pennsylvania | 19104 | — |
| *University of Pittsburgh | Pittsburgh | Pennsylvania | 15213 | — |
| Arthritis Consultation Center | Dallas | Texas | 75231-4496 | — |
| *University of Utah | Salt Lake City | Utah | 84132 | — |
| Virginia Mason Research Center | Seattle | Washington | 98101 | — |
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 NCT00032890, 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 21, 2009 · Synced Nov 14, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.