The Impact of Probiotics on Bariatric Treatment Outcomes

NCT ID: NCT07258732

Last Updated: 2025-12-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

NA

Total Enrollment

200 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-07-10

Study Completion Date

2026-12-31

Brief Summary

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The planned study aims to assess whether probiotics improve the quality of life in patients during the early postoperative period following sleeve gastrectomy, and whether they influence the absorption of micro- and macronutrients.

Patients eligible for inclusion will have a BMI of 40 kg/m² or higher and must have successfully completed the qualification process for sleeve gastrectomy. Exclusion criteria include chronic gastrointestinal diseases, antibiotic use within 4 weeks prior to surgery, and lack of consent to participate in the study.

On the day before surgery, a stool sample will be collected from each patient for microbiological analysis to assess the composition of gut bacteria. Patients will then undergo sleeve gastrectomy using a standard surgical technique.

After the operation, participants will be randomized into two groups. The first group will receive probiotics containing Bifidobacterium animalis AMT30, Bifidobacterium breve AMT32, and Lactobacillus plantarum AMT14. These strains are deposited in the Polish Collection of Microorganisms at the Polish Academy of Sciences in Wrocław and are protected by Polish, European, and U.S. patents. The second group will receive a placebo.

As part of follow-up, stool samples will be collected again one month and three months after surgery for comparative microbiological analysis.

Detailed Description

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Conditions

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Obesity &Amp; Overweight

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Placebo

Group Type PLACEBO_COMPARATOR

Diet

Intervention Type OTHER

Placebo

Control

Group Type ACTIVE_COMPARATOR

Probiotic

Intervention Type DIETARY_SUPPLEMENT

Probiotics containing Bifidobacterium animalis AMT30, Bifidobacterium breve AMT32, and Lactobacillus plantarum AMT14.

Interventions

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Probiotic

Probiotics containing Bifidobacterium animalis AMT30, Bifidobacterium breve AMT32, and Lactobacillus plantarum AMT14.

Intervention Type DIETARY_SUPPLEMENT

Diet

Placebo

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

1. Age over 18 years.
2. BMI over 40 kg/m² or over 35 kg/m² with obesity-related comorbidities.
3. Successful qualification for sleeve gastrectomy.
4. Informed consent to participate in the study.

Exclusion Criteria

1. Age under 18 years.
2. Chronic gastrointestinal diseases.
3. Use of antibiotic therapy within 4 weeks prior to surgery.
4. Lack of consent to participate in the study.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Warmia and Mazury in Olsztyn

OTHER

Sponsor Role lead

Responsible Party

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Natalia Dowgiałło-Gornowicz, MD, PhD

Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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University of Warmia and Mazury

Olsztyn, , Poland

Site Status

Countries

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Poland

Other Identifiers

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1/2024

Identifier Type: -

Identifier Source: org_study_id

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