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Hip OsteoarthritisNCT00682617

Hip Osteoarthritis: Effects of Exercise Programs on Pain and Disability

A study testing Structured exercise program and Waitlist, delayed intervention in people with Hip Osteoarthritis, run by Oregon Health and Science University at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Osteoarthritis is the most common form of arthritis in the United States. It is estimated that 20 million Americans have arthritis, and the annual societal cost is $95 billion. Several exercise studies have shown modest improvements in disability, physical performance, and pain in subjects with knee osteoarthritis. Read more about this study

Who is it for?
Ages 21 years and olderHealthy volunteers can take part
Conditions the study is for
Hip Osteoarthritis
What is being tested?
Structured exercise program and Waitlist, delayed intervention
Could I receive a placebo?
No, everyone receives an active treatment
How many people
41 participants
Where
1 siteUnited States
Study dates
23 May 2007to 11 Nov 2010
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 21 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Age 21 years or more
  • Pain at least once a week in one or both hips
  • Difficulty with at least one of the following secondary to hip pain: walking 1/4 mile, climbing stairs, getting in and out of a car, rising from a chair, lifting and carrying groceries, getting out or bed, getting out of the bathtub, or performing shopping, cleaning or self-care activities
  • Radiographic evidence of femoral and/or acetabular osteophytes on radiograph -OR- radiographic evidence of axial joint space narrowing and active hip flexion </= 115 degrees
  • Primary care physician's written consent to participate in the exercise-based protocol. If te subject does not have a primary care physician, the subject will complete a screening questionnaire for coronary artery disease. If the subject screens as "high risk", te subject will be excluded from the study

Who cannot join

  • A medical condition that precludes safe participation in an exercise program including active cardiac disease, angina, class III heart failure, myocardial infarction in the past year
  • Screening as "high risk" for coronary artery disease
  • Inflammatory arthritis (e.g. psoriatic or rheumatoid)
  • Collecting workers' compensation
  • Involved in litigation regarding pain and/or disability
  • Unable to walk six minutes without cane or assistive device
Show all 10Show fewer
  • Participating in a conflicting research study
  • Significant, symptomatic knee or ankle osteoarthritis
  • Other lower extremity pathology including peripheral vascular disease that would preclude participation in an exercise program
  • Pregnancy

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Oregon Health & Science University Center for Health & Healing

    Portland, Oregon, 97239

Other trials in United States

About this study

Official title: Hip Osteoarthritis: Effects of Structured Exercise Programs on Pain and Long-term Disability

Osteoarthritis is the most common form of arthritis in the United States. It is estimated that 20 million Americans have arthritis, and the annual societal cost is $95 billion. Several exercise studies have shown modest improvements in disability, physical performance, and pain in subjects with knee osteoarthritis. While similar results have been suggested in hip osteoarthritis, well-designed randomized clinical trials have not been conducted. Exercise programs appear beneficial but without adherence, the beneficial effects of exercise for knee and hip osteoarthritis decline over time. A well-designed, evidence-based, arthritis-specific study controlling for exercise duration, frequency and adherence is needed. The objective of this study is to determine the effects of structured exercise programs on self-reported pain and disability in adults with hip osteoarthritis. This prospective, randomized study with a wait-list control is designed to develop preliminary data to support an R01 funding request for a large, randomized clinical trial. All exercise interventions and outcome assessments will take place at OHSU in the Orthopaedics and Rehabilitation Clinics, Rehabilitation Services physical therapy gym, and the General Clinical Research Center. Subjects will be selected to include individuals representative of the larger population with documented hip osteoarthritis. This three-month study will evaluate the effects of an aerobic and resistance exercise program on pain and disability in individuals with hip osteoarthritis. Outcome assessment will follow the Outcome Measures in Rheumatology (OMERACT) recommendations for a core set of outcome measures for clinical trials in arthritis and assess pain, physical function, patient global assessment, and joint imaging. Data analysis will focus on comparing pre- and post-intervention endpoints using conventional statistical analyses such as repeated-measure analysis of variance for repeated continuous measures (e.g. walking distance), and non-parametric methods such as Chi-square or frequency analysis for proportions (e.g. visual pain scores).

Being tested
Structured exercise program, Waitlist, delayed intervention
Keywords
hip, osteoarthritis, exercise, disability, physical function
Medical subject headings
Osteoarthritis, Hip, Osteoarthritis, Motor Activity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Structured exercise programBehavioural

    Also called Group 2

    Exercise intervention will consist of a three-month, supervised, facility-based, hip-specific strengthening, flexibility, and endurance exercise program. The intervention will consist of two phases and take place at OHSU rehabilitation services. Phase 1 will be a two-week orientation and general conditioning program. Phase 2 will be a ten-week progressive workload program. Subjects in both Phase 1 and Phase 2 will meet two to three times per week for 45 minutes per session. Phase 1 will be group sessions with more individualized orientation and attention by the exercise instructors. Phase 2 will begin progressive conditioning and utilize exercise groups of four to six subjects.

  • Waitlist, delayed interventionBehavioural

    Also called Group 1

    Due to limited space in exercise intervention classes, subjects may be placed on a waitlist for 3 months. When an opening becomes available, the subject will begin the exercise program identical to that of Group 2

Study groups in NCT00682617
Study groupRoleWhat they receive
Waitlist ControlExperimentalDelayed intervention. 3 months on waitlist, crossover to intervention (3 additional months)
Receives: Behavioral: Waitlist, delayed intervention
3 Month Exercise ProgramExperimental3 month exercise program
Receives: Behavioral: Structured exercise program

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in 6-minute Walk Test

    Calculated as change from baseline to 3 months

    Measured: 3 months

Secondary outcomes (2)
  1. Change in Pain Visual Analog Scale

    Evaluated using a 100mm pain VAS (range 0-100), with higher scores indicating worse pain. Calculated as change from baseline to 3 months.

    Measured: 3 months

  2. Change in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Physical Function Subscale

    The WOMAC Physical Function Subscale has a range of 0-68, with higher scores indicating worse functional limitations. Calculated as change from baseline to 3 months.

    Measured: 3 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 May 2008 (estimated)
  2. Study start23 May 2007
  3. Primary completion11 Nov 2010
  4. Study completion11 Nov 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Single blind
Who is masked
Participant
Enrolment
41 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00682617
Sponsor's protocol ID
IRB #290
Status last verified
Mar 2020
First submitted
20 May 2008
Last updated
24 Mar 2020
Data monitoring committee
No

Publications

  • Thompson AR, Christopherson Z, Marshall LM, Carlson HL, Carlson NL. A Pilot Randomized Controlled Trial for Aerobic and Strengthening Exercises on Physical Function and Pain for Hip Osteoarthritis. PM R. 2020 Mar;12(3):229-237. doi: 10.1002/pmrj.12262. Epub 2019 Dec 12.

    PubMed 31600429

Questions about this trial

What is this clinical trial studying?

A study testing Structured exercise program and Waitlist, delayed intervention in people with Hip Osteoarthritis, run by Oregon Health and Science University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 24 Mar 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 24 Mar 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in 6-minute Walk Test (time frame: 3 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00682617, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Mar 2020.

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