Endotoxin and Intestinal Flora Before and After Gastric Bypass or Banding in Diabetics

January 27, 2016 updated by: Scott Monte, CPL Associates

Comparison Of Endotoxin Concentration And Intestinal Microbiologic Flora Before And After Roux-En-Y Gastric Bypass Or Gastric Banding Surgery In Morbidly Obese Patients With Type 2 Diabetes Mellitus

This research project is designed to investigate endotoxin (a toxin present in the wall of certain kinds of bacteria) levels and the type of bacteria present in the intestine before and after Roux-en-Y gastric bypass or gastric banding surgery in patients that meet the classification for morbid obesity (body mass index >40 kg/m2) and type 2 diabetes. It is known that the type of bacteria present in the intestines of normal weight and obese individuals are different, and it is also known that people with obesity and type 2 diabetes have higher levels of endotoxin. It has been shown that the bacteria change over the long run after Roux-en-Y gastric bypass surgery, but the short-term effects are not known and the endotoxin levels after this procedure have never been studied.

Study Overview

Status

Completed

Conditions

Detailed Description

Evidence exists that (i) morbidly obese, T2D patients undergoing RYGB are highly likely to resolve T2D symptoms or dramatically reduce oral and/or insulin requirements, (ii) metabolic endotoxemia may incite the pathologic conditions of low-grade inflammation and subsequently insulin resistance, obesity and T2D, (iii) significant intestinal microbiologic flora differences exist between normal weight and obese/diabetic individuals, and (iv) RYGB alters long-term intestinal microbiologic flora. Therefore, it is logical to evaluate short- and long-term circulating endotoxin concentrations and intestinal microbiologic flora in context with weight loss and restoration of euglycemia to expand our knowledge of the mechanism of the benefits observed following RYGB.

Study Type

Observational

Enrollment (Actual)

15

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • New York
      • Buffalo, New York, United States, 14214
        • Sisters of Charity Hospital
      • Williamsville, New York, United States, 14221
        • Synergy Bariatrics

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 95 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Morbidly obese (BMI > 40 kg/m2) patients with T2D

Description

Inclusion Criteria:

  • Age > 18 years of age
  • Morbid obesity (BMI > 40 kg/m2)
  • Confirmed T2D diagnosis/date of onset

Exclusion Criteria:

  • Age < 18 years of age
  • BMI < 40 kg/m2
  • Type 1 diabetes
  • Chronic use of non-steroidal anti-inflammatory agents (NSAIDs)
  • Chronic use of systemic corticosteroids
  • Anticipated inability to maintain current statin, angiotensin converting enzyme inhibitor (ACEI), or angiotensin receptor blocking agent (ARB) regimen

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Roux-En-Y Gastric Bypass
Gastric Banding
Sucessful Response to RYGB
Failed Response to RYGB

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

CPL Associates

Collaborators

Synergy Bariatrics
Sisters of Charity Hospital
The New York State Center of Excellence in Bioinformatics & Life Sciences

Investigators

  • Principal Investigator: Joseph A Caruana, M.D., Synergy Bariatrics

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 2009

Primary Completion (Actual)

April 1, 2015

Study Completion (Actual)

April 1, 2015

Study Registration Dates

First Submitted

August 17, 2009

First Submitted That Met QC Criteria

August 17, 2009

First Posted (Estimate)

August 18, 2009

Study Record Updates

Last Update Posted (Estimate)

January 28, 2016

Last Update Submitted That Met QC Criteria

January 27, 2016

Last Verified

January 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CPL200907A

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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