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.

Condition
Osteoarthritis Knee Osteoarthritis

Further Study Details: 

Expected Total Enrollment:  5000

Knee OA causes more health problems and medical expenses that any other form of arthritis. Symptoms of OA can range from stiffness and mild pain to severe joint pain and even disability. Previous research has shown that certain factors, such as knee pain, prior knee injury or knee surgery, OA of the hand, or obesity, may lead to knee OA. The OAI is a multicenter, observational study of knee OA that will collect information on potential biomarkers for OA and trends in OA onset and progression.

The OAI will recruit and follow participants who have knee OA or are at high risk for developing knee OA for at least a four-year period at one of four clinical centers. Blood and urine collection, magnetic resonance imaging (MRI), and X-rays will be completed at each of four annual follow-up visits. A questionnaire and physical examination at screening will assess for risk factors for the development and progression of knee OA. Levels of knee pain and physical disability will be assessed at study start and at each of the follow-up visits by questionnaire and examination.

Ages Eligible for Study:  45 Years   -   79 Years,  Genders Eligible for Study:  Both

Accepts Healthy Volunteers

Criteria

Inclusion Criteria:

Must meet one of the following criteria:

• Overweight
• Previous knee injury or surgery
• Knee pain during the past year. Participants do not need to have current knee pain to take part in the study.
• Parent or sibling who had knee replacement

Exclusion Criteria:

• Rheumatoid arthritis
• Joint replacements in both knees
• Unable to walk without assistance
• Unable to undergo MRI of the knee

Susan Rubin, MD       srubin@psg.ucsf.edu

Maryland
      University of Maryland, Baltimore,  Maryland,  21201,  United States; Recruiting
      Johns Hopkins University, Baltimore,  Maryland,  21224,  United States; Recruiting
Ohio
      Ohio State University, Columbus,  Ohio,  43210,  United States; Recruiting
Pennsylvania
      University of Pittsburgh, Pittsburgh,  Pennsylvania,  15213,  United States; Recruiting
Rhode Island
      Memorial Hospital of Rhode Island / Brown University, Pawtucket,  Rhode Island,  02860,  United States; Recruiting

Study chairs or principal investigators

Gayle Lester, PhD,  Study Director,  National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)   

Study ID Numbers:  NIAMS-109
Record last reviewed:  April 2005
Last Updated:  April 7, 2005
Record first received:  March 24, 2004
ClinicalTrials.gov Identifier:  NCT00080171
Health Authority: United States: Federal Government
ClinicalTrials.gov processed this record on 2005-04-08