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Could customizing gut lengths in bypass surgery boost weight loss?

NCT ID NCT06293703

Disease control Sponsor: Salvador Navarrete 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 compares two versions of gastric bypass surgery for people with severe obesity. One method uses fixed lengths for the rerouted intestine, while the other customizes the lengths based on each patient's total small bowel length. The goal is to see if the customized approach leads to greater weight loss and better control of obesity-related conditions like diabetes and high blood pressure. About 262 participants will be followed long-term to measure 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

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 262 people

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

Started

Jan 2024

Expected to finish

Dec 2030

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 to 70 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: * morbidly obese patients (defined by BMI between 40 and 60). * Patient who understands and accepts the need for a long-term follow-up. * Patient who agrees to be included in the study Exclusion Criteria: * individuals unable to understand and sign a written consent form * patients with history of previous bariatric surgery procedures * presence of a severe and evolutive life threatening pathology unrelated to obesity * previous gastric or small bowel resection * active cancer * pregnancy or desired to be pregnant during the study * mentally unbalanced patients under supervision or guardianship, patient unable to give consent

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Conditions

The condition(s) this trial relates to.

morbid obesity

As listed by the trial registrant

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

Morbid obesity

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

  • Cleveland clinic

    RECRUITING

    Cleveland, Ohio, 44195, United States

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