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AI coach for knee pain: new trial tests smart exercise app

NCT ID NCT07434011

Symptom relief Sponsor: Universidad Complutense de Madrid Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether an AI-assisted web app that personalizes home exercises can reduce pain and improve knee function in people with knee osteoarthritis, compared to a standard paper exercise program. About 84 adults with knee pain will be randomly assigned to either the AI app or paper program for 6 weeks. Researchers will measure pain, disability, quality of life, and how well participants stick with the program.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
AI-assisted therapeutic exercise program delivered via a web app
What this could lead to
If successful, this could provide an effective, accessible home-based exercise option for people with knee osteoarthritis, reducing pain and improving function without needing frequent clinic visits.
What could go wrong
This is a small, early-stage trial (84 participants) comparing two exercise programs, so results may not apply broadly. The AI component may not significantly outperform a simple paper program, and adherence or usability issues could limit effectiveness.

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 84 people

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

Started

May 2026

Expected to finish

Mar 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

45 years and older

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 (based on National Institute for Health and Care Excellence (NICE) guidance): * Clinical criteria for KOA: age ≥45 years, activity-related knee pain, and morning knee stiffness lasting ≤30 minutes. * Knee pain for 3 months or longer. * Knee pain on most days during the previous month. * Overall knee pain intensity ≥4 on an 11-point Numerical Rating Scale (NRS; 0-10) during the previous week. * Ownership of a smartphone and ability to use a mobile application. * Internet access at home and/or via the mobile phone. * Ability to provide informed consent, participate, and complete study assessments. Exclusion Criteria: * Having a planned knee arthroplasty (knee replacement) surgery. * Knee prosthesis/arthroplasty in the most painful knee. * Participation in a therapeutic exercise program for knee osteoarthritis within the past 6 weeks. * Infiltration for knee osteoarthritis within the past 12 weeks. * Inflammatory arthritic conditions. * A fall in the past 12 months without medical clearance to perform unsupervised home exercise. * Being homebound during the past month without medical clearance to perform unsupervised home exercise. * Failing the pre-exercise screening and not having medical clearance to perform unsupervised home exercise. * Inability to communicate in Spanish. * Any neurological or systemic disease that may limit participation in the study.

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Conditions

The condition(s) this trial relates to.

Motor Activity osteoarthritis osteoarthritis, knee

As listed by the trial registrant

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

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

  • Hospital Universitario 12 de Octubre

    RECRUITING

    Madrid, Madrid, 28041, Spain

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