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New exercise technique could ease severe knee pain without surgery

NCT ID NCT07316933

Symptom relief Sponsor: University of Valencia Source: ClinicalTrials.gov ↗

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Recruitment status, easiest to join first

Recruiting now This study
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 Results may not be published yet.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
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This status has not been confirmed recently, so it may be out of date.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 looks at whether a special exercise method called blood flow restriction (BFR) can help reduce pain and improve muscle function in people with severe knee osteoarthritis who are waiting for knee replacement surgery. Participants will try six different exercise setups that vary the amount of blood flow blocked and the weight used. The goal is to find the best way to use BFR to ease pain and improve movement.

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.

Participants

About 45 people

The number the study aims to enrol. It can still change while the study runs.

Started

Mar 2026

Expected to finish

Dec 2027

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

50 to 85 years

Sex

Anyone

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: * Age between 50 and 85 years * Diagnosis of severe gonarthrosis according to the clinical and radiographic criteria of the American College of Rheumatology guidelines. * On the waiting list for unilateral total knee replacement (TKR) surgery Exclusion Criteria: * Pain in the contralateral leg with an intensity ≥80/100 mm on the visual analog scale (VAS) during daily activities. * Previous hip or knee replacement surgery and osteotomy within the last year. * Autoimmune arthritis * Medical conditions that contraindicate exercise. * Participation in exercise programs (\>2 days/week with training at intensities of 10-15 1RM) in the previous six months. * History of stroke, brain surgery, major depression, or self-reported cognitive impairment that could affect performance in the study. * Cardiovascular, thrombotic, or vascular risk factors (uncontrolled hypertension, peripheral arterial disease, history of deep vein thrombosis or pulmonary embolism, heart failure, severe varicose veins, or uncontrolled anticoagulant therapy). * Skin or local alterations at the cuff application site (ulcers, open wounds, infections, lymphedema, or severe edema). * Inability to communicate normally or with impaired communication skills.

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Conditions

The condition(s) this trial relates to.

Motor Activity osteoarthritis, knee

As listed by the trial registrant

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

Severe knee osteoarthritis

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • University of Valencia

    RECRUITING

    Valencia, Valencia, Spain

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