Osteoarthritis Initiative (OAI): A Knee Health Study
Public ClinicalTrials.gov record NCT00080171. 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.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Knee osteoarthritis (OA) is the most common cause of disability in adults. The "Osteoarthritis Initiative (OAI): A Knee Health Study" is a nationwide research study that will help researchers gather more information about the physical changes that occur prior to the onset of arthritis symptoms or before OA gets worse. The purpose of this study is to examine people who have knee OA or are at high risk for knee OA; information will be used to better understand how to prevent and treat knee OA.
Study identification
- NCT ID
- NCT00080171
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 4,796 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 45 Years to 79 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Feb 2004 (Type not available)
- Primary completion
- Oct 2015 (Actual)
- Completion
- Oct 2015 (Actual)
- Last update posted
- Sep 29, 2020
2004 – 2015
United States locations
- U.S. sites
- 5
- U.S. states
- 4
- U.S. cities
- 4
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of Maryland | Baltimore | Maryland | 21201 | — |
| Johns Hopkins University | Baltimore | Maryland | 21224 | — |
| Ohio State University | Columbus | Ohio | 43210 | — |
| University of Pittsburgh | Pittsburgh | Pennsylvania | 15213 | — |
| Memorial Hospital of Rhode Island / Brown University | Pawtucket | Rhode Island | 02860 | — |
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 NCT00080171, 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 Sep 29, 2020 · Synced Oct 8, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT00080171 live on ClinicalTrials.gov.