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Brain scans reveal how Weight-Loss drugs rewire appetite in teens vs adults

NCT ID NCT07021937

Disease control Sponsor: University of Colorado, Denver 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 01, 2026 · Last updated Jul 02, 2026 · Updated 1 time

Summary

This study investigates how semaglutide (the drug in Ozempic and Wegovy) changes brain activity related to appetite and eating in people with obesity. Researchers will compare teenagers (ages 12–18) and adults (ages 30–45) using brain scans and meal tests to see if the drug affects the brain differently by age. The goal is to understand how these popular weight-loss medications work in the developing brain.

What this could mean

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

Active substance
semaglutide
What this could lead to
If successful, this could reveal how GLP-1 drugs change brain activity in young people with obesity, potentially leading to more tailored treatments.
What could go wrong
This is a Phase 3 trial with 120 participants, so results may not apply to everyone. The study focuses on brain scans and appetite measures, not long-term weight outcomes.

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

Phase 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

About 120 people

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

Expected to start

Jun 2026

An estimate. Start dates often move.

Expected to finish

Apr 2031

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 45 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: * English-speaking * male or female (sex assigned at birth) * 12-18 y/o with obesity (BMI\>120% of the 95th %ile) * 30-45 y/o with obesity (BMI\>35 kg/m2) Exclusion Criteria: * treated with glucagon-like peptide-1 (GLP-1) agonists (e.g., exenatide, liraglutide, semaglutide, tirzepatide) for weight management in the prior 3 months * currently taking anti-psychotic medications (anti-depressants accepted) * diagnosis of type 2 diabetes * current or lifetime anorexia nervosa or current bulimia nervosa * head injury resulting in loss of consciousness \>30min * neurological disorder (e.g., Parkinson's disease) or history of stroke * any contraindication to receiving a MRI (e.g., orthodontal braces) * psychological/behavioral dysfunction (e.g., autism spectrum disorder) or physical impairment that would interfere with study procedures, as determined by study physician * if female, desiring to become pregnant, or currently pregnant or breastfeeding

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Conditions

The condition(s) this trial relates to.

Feeding Behavior Obesity obesity disorder

As listed by the trial registrant

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

Obesity/therapy

How to take part

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

  1. The places running it

    1 site. 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

  • University of Colorado Anschutz Medical Campus

    Aurora, Colorado, 80045, United States

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