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New study to uncover how sleeve gastrectomy affects gut health

NCT ID NCT07643376

Knowledge-focused Sponsor: Toros University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study follows 40 adults who recently had laparoscopic sleeve gastrectomy for obesity. Over 6 months, researchers will measure changes in blood sugar, cholesterol, gut barrier markers, and digestive symptoms. The goal is to understand how the surgery affects gut health and metabolism, which could help improve long-term care after bariatric surgery.

What this could mean

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

What this could lead to
If successful, this study could help doctors better monitor and manage gut health and nutrition after weight-loss surgery, potentially reducing complications.
What could go wrong
This is a small, early observational study with only 40 participants and no control group. Results may not apply to all patients, and it does not test a new treatment.

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.

Participants

About 40 people

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

Expected to start

Jul 2026

An estimate. Start dates often move.

Expected to finish

Feb 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.

Who is studied

Adults with morbid obesity who underwent Laparoscopic Sleeve Gastrectomy (LSG) at Bursa Yıldırım Doruk Hospital General Surgery Clinic within the last month, meeting the inclusion criteria.

Ages

19 to 50 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: * Underwent Laparoscopic Sleeve Gastrectomy (LSG) within the last 1 month * Aged between 19-50 years * BMI ≥40 kg/m² or BMI ≥35 kg/m² with obesity-related comorbidities * Signed informed consent form * Non-smoker and non-alcohol dependent Exclusion Criteria: * Did not undergo or is not planned to undergo LSG * Outside the age range of 19-50 years * Did not sign the informed consent form * BMI \<40 kg/m² or BMI \<35 kg/m² without obesity-related comorbidities * Smoker or alcohol dependent * Has an inflammatory disease * Currently using probiotics, antibiotics, or fiber supplements * Has a psychiatric disorder

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Conditions

The condition(s) this trial relates to.

abdominal obesity-metabolic syndrome metabolic syndrome X morbid obesity obesity disorder

As listed by the trial registrant

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

Bariatric surgery Gastrointestinal symptoms Intestinal permeability Metabolic syndrome Obesity, morbid

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

  • Bursa Yıldırım Doruk Hospital

    Bursa, Bursa, 16310, Turkey (Türkiye)

More trials for these conditions

Other studies related to the condition(s) this trial covers.