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A pocket coach for aching joints: can an app nudge osteoarthritis patients toward more activity?

NCT ID NCT06385028

Symptom relief Sponsor: Luxembourg Institute of Health Source: ClinicalTrials.gov ↗

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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 25, 2026 · Last updated Aug 26, 2026 · Updated 1 time

Summary

This study tests whether a smartphone app called PIANISSIMO can encourage people with osteoarthritis to be more physically active. Participants set weekly step goals and receive daily notifications about physical activity and its benefits for joint health. The trial focuses on whether the app is acceptable and feasible to use, measuring how often people connect and respond to questionnaires. If successful, this approach could offer a simple, scalable way to promote healthier habits in this population.

What this could mean

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

Active substance
A smartphone app (PIANISSIMO) that sends daily notifications about physical activity and sedentary behavior, and lets users set weekly step goals.
What this could lead to
If the app proves acceptable and feasible, it could offer a low-cost, scalable way to encourage physical activity and improve well-being in people with osteoarthritis.
What could go wrong
This is an early feasibility study, not a test of health outcomes. The app may not be engaging enough, and results may not generalize beyond the specific population in Luxembourg.

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 150 people

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

Started

Feb 2025

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

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

Ages

18 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: * Osteoarthritis patients, living or working in Luxembourg * Signed informed consent form * Adequate understanding of one of the study languages (English, French, or German) * Stated willingness to comply with the study procedure consisting in completing the surveys and the digital physical activity intervention Exclusion Criteria: * Rheumatoid arthritis

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Conditions

The condition(s) this trial relates to.

osteoarthritis

As listed by the trial registrant

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

Osteoarthritis

Contacts and locations

Locations

  • Luxembourg Institute of Health

    Strassen, 1445, Luxembourg

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