Type 2 Diabetes and Alteration of Immune System of Intestinal Mucosa : Proof of Concept

NCT ID: NCT02811575

Last Updated: 2022-02-07

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

COMPLETED

Total Enrollment

121 participants

Study Classification

OBSERVATIONAL

Study Start Date

2016-12-31

Study Completion Date

2021-03-04

Brief Summary

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Type 2 diabetes is the predominant type of diabetes. Because a quiet evolution, it is difficult to have a rapid diagnose. A better knowledge about pathophysiological mechanisms at the origin of type 2 diabetes and about its complications could make it possible to improve the prevention and the treatment of this disease.

Research team developped a new research axis : the microbiota of the intestinal mucosa. They proved a translocation process of intestinal bacteria from the intestinal mucosa to different tissue of the organism implicated in glucose homeostasis. This mechanism is involved in the type 2 diabetes development. A clinical study (MICIMAB) of predictive biomarkers of diabetes and obesity is ongoing.

In parallel, the same team explored the role of intestinal immunity modifications in the bacteria translocation from the gut to the blood circulation. They already have some results on animal model but not yet in human. In animal model, a solid reduction of lymphocytes T CD4 Th17 in the intestinal wall is responsable of the translocation of intestinal bacteria and in the induction of a metabolic inflammation wich promotes insulin resistance, abdominal obesity development and type 2 diabetes.

The aim of this study is to explore this hypothesis in human to have therapeutic solution later.

Detailed Description

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Conditions

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Type 2 Diabetes

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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Patients with diabetes

Patients with type 2 diabetes will have biopsy during coloscopy.

Biopsy

Intervention Type OTHER

Ileon and colon biopsy

Control

Patients without type 2 diabetes will have biopsy during coloscopy.

Biopsy

Intervention Type OTHER

Ileon and colon biopsy

Interventions

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Biopsy

Ileon and colon biopsy

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Coloscopy indication
* Capacity to give a written informed consent

Exclusion Criteria

* Type 1 diabetes
* Severe renal failure
* Antecedent of liver fibrosis and/or liver failure
* Antecedent of inflammatory bowel disease, lymphocyte colitis, celiac disease or colon cancer
* Antecedent of obesity surgery or of total colectomy
* Antecedent of documented intestinal ischaemia
* Acute infection the week before the inclusion
* Congenital of acquired immune deficiency
* Chronic viral infection
* Antibiotic of probiotic the month before the coloscopy
* Pregnancy
* Patients participating to another research with an exclusion period
* Patients under guardianship
Minimum Eligible Age

35 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University Hospital, Toulouse

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Pierre Gourdy

Role: PRINCIPAL_INVESTIGATOR

University Hospital, Toulouse

Locations

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CHU de Toulouse

Toulouse, , France

Site Status

Countries

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France

Other Identifiers

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RC31/16/8217

Identifier Type: -

Identifier Source: org_study_id

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