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Teens fight fat with phones: AI coach aims to end Yo-Yo dieting

NCT ID NCT06920862

Disease control Sponsor: National Yang Ming Chiao Tung University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 09, 2026 · Updated 2 times

Summary

This study tests a digital program for overweight teens aged 12-18 that uses AI coaching, games, and real-time feedback to encourage healthy eating and exercise. Two hundred participants will either use the digital program or receive standard health education for three months. The goal is to see if the program helps teens adopt lasting healthy habits and avoid dangerous dieting behaviors like skipping meals or using diet pills.

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 200 people

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

Started

Oct 2025

Expected to finish

Dec 2029

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

12 to 18 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Adolescents aged 12-18 years. * Body Mass Index (BMI) ≥ 85th percentile according to the Health Promotion Administration (HPA) standards. * Willing to participate in a digital intervention for weight control. * At least one parent or guardian provides consent for participation. * Able to understand and use digital devices (smartphones, tablets, or computers). Exclusion Criteria: * Significant communication barriers (e.g., severe speech, hearing, or cognitive impairments). * Psychiatric disorders that affect interpersonal interaction (e.g., schizophrenia, severe depression). * Previous negative experiences with digital health interventions (VR or AI-based coaching). * Severe motion sickness that affects the ability to use VR-based tools. * Currently enrolled in another weight management program that may interfere with study outcomes.

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Conditions

The condition(s) this trial relates to.

Body Weight Changes obesity disorder Pediatric Obesity Weight Prejudice

As listed by the trial registrant

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

Obesity, adolescent Weight change, body Weight stigma

How to take part

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

  1. The places running it

    2 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

  • National Yang Ming Chiao Tung University

    NOT_YET_RECRUITING

    Hsinchu, 300, Taiwan

  • National Yang Ming Chiao Tung University

    RECRUITING

    Taipei, 112, Taiwan

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