Effects of Various Bariatric Surgical Procedures on Intestinal TRL Metabolism in Obese Type 2 Diabetic Patients

Obesity Clinical Trial

— MISTRAL  

Official title:

Effects of Various Bariatric Surgical Procedures on Intestinal Triglyceride-rich-lipoprotein (TRL) Metabolism in Obese Type 2 Diabetic Patients

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT02332434
• Other study ID #: 2014-15
• Secondary ID: RCAPHM14_0179
• Status: Recruiting
• Phase: N/A
• First received: January 5, 2015
• Last updated: November 16, 2015
• Start date: March 2015
• Est. completion date: January 2019

Study information

• Verified date: November 2015
• Source: Assistance Publique Hopitaux De Marseille
• Contact: Sophie Beliard, MD
• Email: sophie.beliard[@]ap-hm.fr
• Is FDA regulated: No
• Health authority: France: Agence Nationale de Sécurité du Médicament et des produits de santé
• Study type: Interventional

Clinical Trial Summary

Rational: The world and french epidemic of obesity and diabetes represents a major problem of public health. The prevalence in France, in the adult population, is 15 % corresponding to 6.9 million people for obesity and 6 % corresponding to 3.9 million people for diabetes. Morbidly obesity (body mass index 40 kg/m²), the most serious, is more and more frequent. Cardiovascular diseases are the first cause of morbidity and mortality. The atherogenic dyslipidemia of these insulin-resistant obese type 2 diabetic patients characterized by the quartet: elevated plasma triglycerides, low high-density lipoprotein-cholesterol, increased proportion of small and dense low-density lipoproteins, is widely explained by the blood accumulation of TRL from the liver and the intestine, and represents a major cardiovascular risk factor. The overproduction of intestinal TRL (which apoprotein B48 is the specific tracer) is a constituent recently recognized of insulin-resistance and the atherogenous role of these intestinal TRL has been shown. In view of this important overmortality and the failures of the medical, nutritional, dietary and psychotherapeutic combined treatment, the bariatric surgery quickly developed. Two main procedures are performed: 1 based exclusively on the gastric restriction (the sleeve gastrectomy) and one associating a malabsorption (the gastric bypass).

Objectives: The main objective of this study is to compare the effect of each surgical procedure and the differential effect of the 2 bariatric surgery procedures on the production and clearance rates of the intestinal TRL. The secondary objectives are to compare the effect of each surgical procedure and the differential effect of the 2 bariatric surgery procedures on the production and clearance rates of the hepatic TRL and to document the potential links between the expected reduction of these productions after the surgery and the loss of weight, the improvement of the insulin-sensitivity, the changes in hormones, the decrease of the inflammatory state, the changes in energy expenditure, body composition and energy intake.

Methods: It is a multicentric, prospective, comparative study of cohorts. After identification of the eligible subjects, the kinetics (production and clearance rates) of intestinal and hepatic TRL will be performed in the hospital, using established stable isotope enrichment methodology (5,5,5-D3-L-Leucine), in 2 groups of obese patients (15 patients per surgery procedure), before and 6 months after the surgery.

Perspectives: A better understanding of the dyslipidemia of obese type 2 diabetic patients and the factors modulating this dyslipidemia may lead to develop new dietary and/or drugs and/or surgical treatments targeted at the enterocyte to improve the lipid profile of these patients and reduce the incidence of cardiovascular diseases. Moreover, a differential effect between the 2 surgical procedures could help to choose the best surgical procedure for obese type 2 diabetic patients depending on the lipid profile at baseline.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 30
• Est. completion date: January 2019
• Est. primary completion date: January 2018
• Accepts healthy volunteers: No
• Gender: Both
• Age group: 18 Years to 65 Years

Eligibility

Inclusion Criteria:

• Subject with a body mass index between 35 and 60 kg / m²

• Subject with no contradiction to the 2 surgical techniques studied: Sleeve Gastrectomy and Gastric Bypass

• Subject with type 2 diabetes as defined

• Subject not having presented cardiovascular events (myocardial infarct, stroke, peripheral ischemia) in the previous 6 months

Exclusion Criteria:

• Pregnant women

Study Design

Allocation: Non-Randomized, Intervention Model: Parallel Assignment, Masking: Open Label

Related Conditions & MeSH terms

• Diabetes
• Obesity

Intervention

Other:
• stable isotope enrichment methodology (5,5,5-D3-L-Leucine)

Locations

Country	Name	City	State
France	Assistance Publique Hôpitaux Marseille	Marseille

Sponsors (1)

Lead Sponsor	Collaborator
Assistance Publique Hopitaux De Marseille

Country where clinical trial is conducted

France, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	production and clearance rates of intestinal and hepatic TRL, in 2 groups of obese patients (15 patients per surgery procedure), before and 6 months after the surgery.		7 months	No