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Knee pain study for runners never got off the ground

NCT ID NCT03314428

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled This study
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study aimed to see if a 4-week running form retraining program could reduce knee pain and improve function in runners with mild to moderate knee osteoarthritis. It planned to measure changes in symptoms and knee joint loads. However, the study was withdrawn before any participants were enrolled, so no results are available.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Expected to start

Jul 2025

An estimate. Start dates often move.

Expected to finish

Jul 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

40 years and older

Sex

Female participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * TFOA of Grade 2 (mild) or 3 (moderate) on the Kellgren and Lawrence scale * report knee pain greater than or equal to 3/10 on a numerical pain rating scale (0-10) during most days of the previous month * run at least 10 km per week for a minimum of 6 months * declare being comfortable running on a treadmill for at least 30 minutes Exclusion Criteria: * history of traumatic knee injury * neurological or inflammatory arthritic condition * cardiovascular or cardiopulmonary disease preventing from safely performing moderate intensity running * presence of any lower limb condition affecting running (other than TFOA) * use of any oral or injected corticosteroids or viscosupplementation in the previous six months * regular use of non-steroidal anti-inflammatory drugs, analgesics or knee unloading bracing devices before, during or after running * non-English speaking

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Robert H.N. Ho Research Centre

    Vancouver, British Columbia, V5Z 1M9, Canada

More trials for these conditions

Other studies related to the condition(s) this trial covers.