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MRI reveals hidden body changes after Weight-Loss surgery

NCT ID NCT07711925

Knowledge-focused Sponsor: University of Warmia and Mazury in Olsztyn 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 17, 2026 · Last updated Jul 17, 2026

Summary

This observational study uses magnetic resonance imaging (MRI) to track how fat and muscle distribution changes in adults with obesity who undergo bariatric surgery. Participants receive MRI scans before surgery and at 1, 6, and 12 months after to measure visceral fat, subcutaneous fat, muscle volume, and fat in the liver and kidneys. The goal is to link these detailed body-composition changes with improvements in metabolic health, such as blood sugar control.

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 50 people

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

Started

Jan 2026

Expected to finish

May 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

18 years and older

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 18 years or older * BMI \>= 30 kg/m2 * qualified to undergo bariatric surgery * Ability to provide written informed consent * Willingness to undergo magnetic resonance imaging before surgery and 3, and 12 months after surgery Exclusion Criteria: * Previous bariatric surgery * Presence of ferromagnetic implants or other contraindications to magnetic resonance imaging * Previous plastic or surgical procedures affecting the body region assessed by MRI, except cholecystectomy, appendectomy, or inguinal hernia repair * Chronic kidney disease stage 4 or higher * Pregnancy * Claustrophobia preventing MRI examination * Inability or unwillingness to provide informed consent

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Conditions

The condition(s) this trial relates to.

Obesity obesity disorder

As listed by the trial registrant

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

Obesity (bmi>30)

How to take part

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  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

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  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 Warmia and Mazury

    Olsztyn, Warminsko-mazusrkie, 10-045, Poland

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