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Knee OsteoarthritisNCT01597830

The Effects of Specialized Footwear in Osteoarthritis

A study testing Mobility shoe in people with Knee Osteoarthritis, run by Rush University Medical Center 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

This study evaluates the effects of specialized footwear on pain and knee loading in knee osteoarthritis. The hypothesis is that this footwear will lead to decreased knee loading and knee pain. Read more about this study

Who is it for?
Any age
Conditions the study is for
Knee Osteoarthritis
What is being tested?
Mobility shoe
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
200 participants
Where
1 siteUnited States
Study dates
Jul 2007to Aug 2013
Phase
Interventional
Are there results?
None posted in the registry

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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Able and willing to give informed consent and to comply with the study protocol and follow-up instructions.
  • Symptomatic OA of the knee, as defined by the American College of Rheumatology's Clinical Criteria for Classification and Reporting of OA of the Knee. If symptoms are bilateral, then the knee identified by the subject as more symptomatic will serve as the index knee.
  • Ambulatory knee pain, defined as the presence of greater than 30 mm of pain while walking on a flat surface (corresponding to question 1 of the visual analog format of the WOMAC.
  • Radiographic OA of the study knee of grade 2 or 3, as defined by the modified Kellgren and Lawrence (K-L) grading scale.
  • Medial compartment OA, defined as either qualitative joint space narrowing of ≥ 1or the presence of medial bone cyst, sclerosis, or osteophyte.

Who cannot join

  • Inability or unwillingness to wear study shoes for at least 6 hours/day for 6 days/week
  • Knee flexion contracture of > 15 degrees or inability to ambulate without assistance.
  • Presence of clinically significant OA of the hip or ankle or pain greater than 20 mm at these sites (WOMAC).
  • > 3 degrees valgus or >12 degrees varus deformity of either knee, defined by the mechanical axis (hip-knee angle).
  • Predominant lateral compartment OA, defined as narrowing of the lateral joint space in excess of the narrowing of the medial joint space in either the index or the contralateral knee.
  • Concurrent systemic inflammatory arthropathy,
Show all 11Show fewer
  • Prior knee or hip arthroplasty, or surgical arthroscopy of either knee within previous 3 months or history of fracture of either lower extremity within 6 months of study entry.
  • Intrinsic foot disease including hallux rigidus, hallux abducto-valgus, metatarsalgia, plantar fasciitis, peripheral neuropathy, or any foot condition that may be exacerbated by particular footwear.
  • Intra-articular injection in the index knee: steroids within 6 weeks, hyaluronan derivatives within 4 months.
  • Pregnant subjects will be excluded because of the X-rays required.
  • Any medical condition that, in the opinion of the PI, would render the subject unable to complete the study.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Rush University Medical Center

    Chicago, Illinois, 60612

Other trials in United States

About this study

This study evaluates the effects of specialized footwear on pain and knee loading in knee osteoarthritis. The hypothesis is that this footwear will lead to decreased knee loading and knee pain.

Being tested
Mobility shoe, control shoe
Keywords
knee, osteoarthritis, loading
Medical subject headings
Osteoarthritis, Knee, Osteoarthritis

What participants receive

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

  • Mobility shoeOther

    flat, specialized shoe

  • control shoeOther

    control shoe

Study groups in NCT01597830
Study groupRoleWhat they receive
active shoeExperimentalNot described
Receives: Other: Mobility shoe
ControlSham comparatorNot described
Receives: Other: control shoe

What is being measured

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

  1. Dynamic knee loading

    Measured: 6 months to 2 years

Timeline

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

  1. First posted14 May 2012 (estimated)
  2. Study startJul 2007
  3. Primary completionAug 2013

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
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
200 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01597830
Sponsor's protocol ID
L07041071
Status last verified
Apr 2016
First submitted
10 May 2012
Last updated
6 Apr 2016
Results posted
No
Data monitoring committee
No

Publications

  • Shakoor N, Sengupta M, Foucher KC, Wimmer MA, Fogg LF, Block JA. Effects of common footwear on joint loading in osteoarthritis of the knee. Arthritis Care Res (Hoboken). 2010 Jul;62(7):917-23. doi: 10.1002/acr.20165.

    PubMed 20191571
  • Shakoor N, Lidtke RH, Sengupta M, Fogg LF, Block JA. Effects of specialized footwear on joint loads in osteoarthritis of the knee. Arthritis Rheum. 2008 Sep 15;59(9):1214-20. doi: 10.1002/art.24017.

    PubMed 18759313
  • Shakoor N, Block JA. Walking barefoot decreases loading on the lower extremity joints in knee osteoarthritis. Arthritis Rheum. 2006 Sep;54(9):2923-7. doi: 10.1002/art.22123.

    PubMed 16947448
  • Shakoor N, Lidtke RH, Wimmer MA, Mikolaitis RA, Foucher KC, Thorp LE, Fogg LF, Block JA. Improvement in knee loading after use of specialized footwear for knee osteoarthritis: results of a six-month pilot investigation. Arthritis Rheum. 2013 May;65(5):1282-9. doi: 10.1002/art.37896.

    PubMed 23575871

Questions about this trial

What is this clinical trial studying?

A study testing Mobility shoe in people with Knee Osteoarthritis, run by Rush University Medical Center 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 11 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 6 Apr 2016. 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. Some participants in this study may receive a placebo. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Dynamic knee loading (time frame: 6 months to 2 years). 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 NCT01597830, which also lists 4 linked publications.

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 6 Apr 2016.

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