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Poop test predicts weight loss success after surgery?

NCT ID NCT07461610

Knowledge-focused Sponsor: Cairo University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looks at 50 adults having either sleeve gastrectomy or gastric bypass to see if routine stool tests can reveal differences in gut function after surgery. Participants provide stool and blood samples before and 6 months after their operation. Researchers will check for signs of undigested food, gut inflammation, and changes in acidity to see if these relate to weight loss and diabetes improvement.

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 50 people

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

Started

Apr 2026

Expected to finish

Dec 2026

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

Patients with morbid obesity scheduled for primary bariatric surgery at Kasr Al-Ainy University Hospitals, Cairo, Egypt.

Ages

18 to 60 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: * Male and female patients aged 18 to 60 years * Body Mass Index (BMI) ≥ 40 kg/m², OR BMI ≥ 35 kg/m² with at least one obesity-related comorbidity (type 2 diabetes, hypertension, dyslipidemia, osteoarthritis, obstructive sleep apnea) * Patients scheduled for primary laparoscopic bariatric surgery (either SG or Gastric Bypass \[MGB or RYGB\]) at Kasr Al-Ainy University Hospitals * Provision of written informed consent Exclusion Criteria: * Age \< 18 years or \> 60 years * Previous bariatric surgery or major gastrointestinal surgery (gastric, intestinal, or colorectal resection) * Chronic kidney disease (eGFR \< 60 mL/min/1.73m²) or previous renal transplant * Chronic liver disease (cirrhosis, chronic hepatitis) or liver failure * Chronic inflammatory bowel disease (Crohn's disease, ulcerative colitis), celiac disease, or chronic pancreatitis * Active malignancy or history of chemotherapy/radiotherapy in the past 5 years * Pregnancy or breastfeeding * Chronic alcohol abuse or substance abuse * Use of antibiotics, probiotics, or prebiotics within 4 weeks prior to stool sample collection (to avoid confounding effects on gut flora) * Acute gastrointestinal infection at the time of sample collection

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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

  • Faculty of Medicine Cairo University

    RECRUITING

    Cairo, Al-Manial Cairo, 11956, Egypt

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