Evaluation of Liver Fibrosis Following Surgical-induced Weight Loss

NCT ID: NCT01469962

Last Updated: 2014-06-19

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

255 participants

Study Classification

OBSERVATIONAL

Study Start Date

2011-11-30

Study Completion Date

2014-02-28

Brief Summary

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Obesity is a frequent disease with an increased prevalence, estimated to 12.4% in France (OBEPI study 2006). Non alcoholic fatty liver disease (NAFLD) and non alcoholic steatohepatitis (NASH) both complicate morbid obesity and could be responsible for the development of liver fibrosis and consequently of liver cirrhosis. Bariatric surgery has been widely used in obese patients to reduce their weight but also to decrease morbidity conditions related to obesity. It could be involved in an improvement in liver lesions observed in obese patients. To evaluate the severity of liver lesions, the gold standard is pathological examination of the liver using percutaneous or surgical biopsies, with a scoring called Fibrosis score stage. Alternative less invasive techniques have been developed to evaluate liver lesions. These tests are commonly used in clinical hepatology and consisted of serum levels determination of fibrosis markers (Fibrotest, Transthyretin).

The aim of this study is to evaluate the evolution of fibrosis scores during weight loss in a population of patients operated on for morbid obesity ( BMI \> 40kg/m2 or BMI\> 35kg/m2 with comorbidity). The primary end point is to evaluate the concordance between Fibrotest and transthyretin serum levels. The number of patients has been calculated on the basis of a concordance ( Kendall test) superior to 70% in patients with grade F1 fibrosis that represents about 40% of morbid obese patients. A total of 255 patients has to be enrolled in this study. According to the number of patients operated on in the 3 centres (\>150/year), the time for recruitment is 12 months. Secondary end points will evaluate in these patients the excess weight loss, the improvement in fibrosis liver tests and the correlation with improvement in other obesity- related conditions, according to surgical procedures.

Detailed Description

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Conditions

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Obesity

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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obese patients

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* patients operated on for morbid obesity (BMI \>40kg/m2 or \>35kg/m2 associated with comorbidity)

Exclusion Criteria

* contraindications to morbid obesity surgery
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Hospital, Lille

OTHER

Sponsor Role collaborator

Amiens University Hospital

OTHER

Sponsor Role collaborator

University Hospital, Rouen

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Rouen University Hospital

Rouen, , France

Site Status

Countries

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France

Other Identifiers

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2010/079/HP

Identifier Type: -

Identifier Source: org_study_id

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