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Scientists map the Brain's appetite signals using balloons and meals

NCT ID NCT05525845

Knowledge-focused Sponsor: Mayo Clinic 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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Sep 18, 2026 · Updated 1 time

Summary

This study looks at how your gut and brain work together to control appetite. Researchers will place a temporary balloon in the stomach and give participants tasteless and tasty meals while scanning their brains with MRI. The goal is to understand the signals that make us feel full or hungry, which could help develop better treatments for obesity.

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 15 people

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

Started

Sep 2022

Expected to finish

Aug 2028

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

21 to 50 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: * BMI 18-25 kg/m\^2. * Weight stable for 3 months prior to study entry. * For females: study days will be scheduled during the follicular phase of their menstrual cycle (i.e., the first 13 days (about 2 weeks) of the cycle). * Able to provide written informed consent prior to any study procedures and be willing and able to follow study procedures.. * Ability to perform light to moderate physical activity. Exclusion Criteria: * Any contraindication for MRI scanning. * Any history of childhood (\> 95th percentile) or adult obesity (BMI \>30 kg/m\^2). * Claustrophobia. * High intensity training or physical activity. * Any contraindication for intragastric balloon insertion. * Any allergies to the study meals. * Any history of eating disorder. * Any substance abuse disorder (including alcohol and tobacco). * Any history of psychiatric disorders. * Any cardiovascular, endocrine, pulmonary, neurological, or gastrointestinal comorbidities. * Pregnancy or nursing. * Any history of bariatric surgery or endoscopic bariatric procedure. * Use of any medication or supplement that alters appetite. * Patient has a known history of any condition or factor judged by the investigator to prevent participation in the study or which might hinder study adherence.

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As listed by the trial registrant

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

Healthy

Contacts and locations

Locations

  • Mayo Clinic Rochester

    Rochester, Minnesota, 55905, United States

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