Improvement in Glycemic Response After Bariatric Surgery

NCT ID: NCT05325736

Last Updated: 2025-03-26

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

RECRUITING

Total Enrollment

120 participants

Study Classification

OBSERVATIONAL

Study Start Date

2021-07-01

Study Completion Date

2026-07-01

Brief Summary

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decipher the role of microbiota in glycemic response change after bariatric surgery

Detailed Description

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Despite the vast knowledge linking the gut microbiome to metabolism and the glucose response, the relation still remains unclear. hopefully, a deep understanding of the mechanisms underlying metabolic improvement following bariatric surgery will make it possible to identify targets for pharmacological intervention, which will reduce the need for surgery and its risks.

Previous studies have characterized the microbiome after bariatric surgery, but most suffer from methodological limitations.

The current study has the potential to be innovative and make a significant contribution to understanding the mechanisms involved in early metabolic improvement after bariatric surgery.

Conditions

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Bariatric Surgery

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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sleeve gastrectomy surgery

participants undergoing sleeve gastrectomy surgery for weight reduction

sleeve gastrectomy surgery

Intervention Type PROCEDURE

participants undergoing sleeve gastrectomy surgery

gastric bypass surgery

participants undergoing gastric bypass surgery for weight reduction

gastric bypass surgery

Intervention Type PROCEDURE

participants undergoing gastric bypass surgery

cholecystectomy

participants undergoing cholecystectomy

control

Intervention Type PROCEDURE

cholecystectomy

Pancreatectomy

participants undergoing Pancreatectomy

Pancreatectomy

Intervention Type PROCEDURE

Collecting a sample of an unidentified healthy pancreas to extract insulin-secreting beta cells from the sample

Interventions

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sleeve gastrectomy surgery

participants undergoing sleeve gastrectomy surgery

Intervention Type PROCEDURE

gastric bypass surgery

participants undergoing gastric bypass surgery

Intervention Type PROCEDURE

control

cholecystectomy

Intervention Type PROCEDURE

Pancreatectomy

Collecting a sample of an unidentified healthy pancreas to extract insulin-secreting beta cells from the sample

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* candidates of bariatric surgery or cholecystectomy
* age 18-70
* male/female

Exclusion Criteria

* previous bariatric surgery
* type 1 diabetes
* antibiotic treatment 3 months prior to the study
* probiotic treatment 3 months prior to the study
* chronic disease - gastrointestinal disease, malignancy, psychiatric disorder, endocrinologic disorders
* any pathologic findings during endoscopy
* participants who will suffer from a post-operation complication
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Tel-Aviv Sourasky Medical Center

OTHER_GOV

Sponsor Role collaborator

Weizmann Institute of Science

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Avner Leshem, MD

Role: STUDY_DIRECTOR

Weizmann institute

Danit Dayan, MD

Role: PRINCIPAL_INVESTIGATOR

Souraski medical center

Locations

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Weizmann Institute of Science

Rehovot, , Israel

Site Status RECRUITING

Souraski medical center

Tel Aviv, , Israel

Site Status RECRUITING

Countries

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Israel

Central Contacts

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Avner Leshem, MD

Role: CONTACT

+972547487555

Facility Contacts

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Avner Leshem, MD

Role: primary

Avner Leshem

Role: primary

97289346745

Other Identifiers

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0046-21-TLV

Identifier Type: -

Identifier Source: org_study_id

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