- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01469962
Evaluation of Liver Fibrosis Following Surgical-induced Weight Loss (FIBROTEST)
Evolution of Fibrosis Scores During Weight Loss in a Population of Patients Operated on for Morbid Obesity
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.
Study Overview
Status
Conditions
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Rouen, France, 76000
- ROUEN university hospital
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- patients operated on for morbid obesity (BMI >40kg/m2 or >35kg/m2 associated with comorbidity)
Exclusion Criteria:
- contraindications to morbid obesity surgery
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
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obese patients
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Improvement in transthyretin serum levels
Time Frame: 1 year after surgery
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We will measure the modifications of Transthyretin serum levels in correlation with fibrotest, one year after surgery, to assess the effect of weight loss on liver fibrosis
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1 year after surgery
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
improvement in fibrosis scores (fibrotest, nashtest, steatotest)
Time Frame: 1 year after surgery
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We will measure the modifications of fibrosis scores, one year after surgery, to assess the effect of weight loss on liver fibrosis
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1 year after surgery
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Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2010/079/HP
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