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Can a smart scale and app tame childhood obesity?

NCT ID NCT04917601

Disease control Sponsor: Karolinska Institutet 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study tests a digital support system called Evira for treating childhood obesity. Children weigh themselves daily at home using a special scale that sends data to an app on their parent's phone and to the clinic. The goal is to see if adding this system to standard lifestyle treatment helps kids lose weight better than standard care alone. About 680 children aged 4 to 17 with obesity will take part.

What this could mean

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

Active substance
Evira digital support system (app and smart scale)
What this could lead to
If successful, this could provide a simple, home-based tool to help children with obesity manage their weight more effectively.
What could go wrong
This is a behavioral intervention, not a drug, so results may vary widely. The study is still recruiting, and long-term benefits are not yet proven.

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 680 people

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

Started

May 2022

Expected to finish

Dec 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

4 to 17 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: * Age \>4.0 and \<17.0 years of age at inclusion * Obesity defined based on the International Obesity Task Force criteria iso-BMI 30 - 40 kg/m2 * Willingness to participate in an obesity treatment clinical trial * Family ability to communicate in the language of the country of residence e.g. write and read messages in the mobile application * Parents having a smart phone and an email address Exclusion Criteria: * Morbid obesity defined as iso-BMI\>40kg/m2 independently of age * Endocrine disorders other than well controlled hypothyroidism * Metabolic disorders of importance for weight control - to be discussed * Treatment for depression and other psychiatric disorders during the last 6 months before inclusion * Pharmacological treatment of importance for weight control * Hypothalamic or monogenic obesity, e.g. syndromes and Mb Down * Severe neuropsychiatric disorders that could affect study compliance * Eating disorders requiring therapy during the last six months before inclusion or observed at the inclusion screening.

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Conditions

The condition(s) this trial relates to.

obesity disorder Pediatric Obesity

As listed by the trial registrant

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

Adolescent obesity Childhood obesity Mhealth Personalized medicine

How to take part

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

  1. The places running it

    3 sites in 2 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

  • Kalmar barnklinik

    COMPLETED

    Kalmar, 391 85, Sweden

  • Samodzielny Publiczny Szpital Kliniczny

    RECRUITING

    Szczecin, 71-252, Poland

  • St. Olavs Hospital

    ACTIVE_NOT_RECRUITING

    Trondheim, 7030, Norway

  • University of Campania Luigi Vanvitelli

    RECRUITING

    Naples, 80138, Italy

  • University of Messina

    NOT_YET_RECRUITING

    Messina, 98125, Italy

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