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Teens take the lead: global study tests if youth-designed changes boost physical activity and sleep.

NCT ID NCT06181162

Knowledge-focused Sponsor: Amsterdam UMC, location VUmc 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Updated 2 times

Summary

This study, called YoPA, is testing whether getting teenagers directly involved in designing changes to their neighborhoods can help them be more active, sleep better, and spend less time on screens. Researchers in Denmark, the Netherlands, Nigeria, and South Africa will work with about 1,000 teens aged 12-18 living in disadvantaged areas. The teens will help decide what changes to make—like adding safe places to play or walk—and the study will track whether those changes actually improve their health habits over three years.

What this could mean

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

What this could lead to
If successful, this approach could offer a blueprint for involving teens in designing healthier neighborhoods in cities worldwide.
What could go wrong
This is an early-stage, observational-style study without a controlled comparison, so it cannot prove cause and effect. Results may vary across very different countries and communities.

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 1,000 people

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

Started

Nov 2023

Expected to finish

Dec 2026

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: * aged 12 to 18 years * living in a disadvantaged area in Aalborg (Denmark), Amsterdam (the Netherlands), Osogbo (Nigeria), or Soweto (South Africa) * active informed consent by the adolescents and at least one parent/caregiver where applicable for the participation of the adolescent Exclusion Criteria: * none

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Conditions

The condition(s) this trial relates to.

Motor Activity sleep disorder

As listed by the trial registrant

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

Health promotion Physical activity Screen use Sleep

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 in 4 countries. 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

  • Amsterdam UMC, location Vrije Universiteit Amsterdam, Public and Occupational Health

    RECRUITING

    Amsterdam, Netherlands

  • Redeemer's University, Department of Physiotherapy

    RECRUITING

    Osogbo, Nigeria

  • Syddansk Universitet, Research Unit for Active Living, Department of Sports Science and Clinical Biomechanics

    RECRUITING

    Odense, Denmark

  • University of the Witwatersrand, SAMRC Developmental Pathways for Health Research Unit, Faculty of Health Sciences

    RECRUITING

    Johannesburg, South Africa

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