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App aims to keep teen heart transplant patients alive and healthy

NCT ID NCT05732779

Disease control Sponsor: University of Florida 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jul 17, 2026 · Updated 2 times

Summary

This study tests a mobile app that lets teen heart transplant patients record themselves taking their anti-rejection medication. The goal is to improve medication adherence and reduce the risk of organ rejection and hospital stays. About 100 teens aged 10-21 who have had a heart transplant will use the app, and researchers will track their medication levels, rejection episodes, and quality of life.

What this could mean

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

Active substance
mobile health app for video directly observed therapy
What this could lead to
If it works, this could provide a practical tool to help teen heart transplant patients stick to their medication schedule, potentially reducing rejection episodes and hospitalizations.
What could go wrong
This is a relatively small trial (100 participants) testing a behavioral intervention, not a new drug. Success depends on teens actually using the app consistently, and results may not apply to all transplant patients.

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 100 people

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

Started

Oct 2024

Expected to finish

May 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

10 to 21 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: * Eligible participants are 10-21 years of age * Have received a heart transplant and are followed participating pediatric heart transplant centers * English-speaking or Spanish-speaking * Own a smart-phone or have access to the mobile app through other devices * Are willing to receive information through it * Have a MLVI score of greater than 2.0 over the last year Exclusion Criteria: • Those with cognitive impairments will not be eligible for enrollment due to inability to provide informed assent

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Conditions

The condition(s) this trial relates to.

Health Behavior Medication Adherence Patient Participation transplant rejection

As listed by the trial registrant

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

Health behavior Heart transplant rejection Immune suppression Medication nonadherence Patient engagement Pediatric heart transplant Remote monitoring

How to take part

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

  1. The places running it

    4 sites. 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

  • FSU College of Medicine

    NOT_YET_RECRUITING

    Tallahassee, Florida, 32306, United States

  • Joe DiMaggio Children's Hospital

    RECRUITING

    Hollywood, Florida, 33021, United States

  • University of Florida

    RECRUITING

    Gainesville, Florida, 32610, United States

  • University of Miami, Miller School of Medicine

    RECRUITING

    Coral Gables, Florida, 33146, United States

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