New Imaging Tools to Explore Impact of Bariatric Surgery on Pancreatic Lesions: PACHIBA- Bariatric Surg (PACHIBA)

July 7, 2022 updated by: Assistance Publique - Hôpitaux de Paris

The investigators propose an exploratory study aiming at assessing the impact of surgical bariatric treatment on the improvement of pancreatic lesions detected by MRI.

Pancreatic MRI will be performed in severe-obese patients with a planned bariatric surgery, before and 6 months after bariatric surgery.

To assess the impact of bariatric surgery on pancreatic Magnetic Resonance Imaging (MRI) parameters in severe-obese patients

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
25

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

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

  • France
      • Colombes, France, 92700
        • Recruiting
        • Centre d'obésité et de physiologie
        • Contact:

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adults (aged 18 to 65 years) with a planned for bariatric surgery (sleeve gastrectomy) according to HAS criteria
  • Patients with severe obesity (BMI≥35)

Exclusion Criteria:

  • Patients with problem of alcohol abuse (previous or current)
  • Patients with problems of understanding
  • Patients with previous acute or chronic pancreatitis
  • Patients with contraindication to MRI (active implantable medical devices, pacemaker, claustrophobia …)
  • Inability to undergo MRI due to weight excess
  • Pregnant or breastfeeding woman
  • Absence of free and informed consent
  • Non affiliation to a social security regime or CMU (Universal health coverage)
  • Patient under AME (State medical aid)
  • Patient deprived of freedom, subject under a legal protective measure
  • Patients who have already had bariatric surgery

Secondary exclusion criteria :

  • Patients who have undergone bariatric surgery other than a sleeve gastrectomy

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

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: MRI before and 6 months after bariatric surgery

Recruitment of patient with planned bariatric surgery in Louis Mourier Hospital by the nutritionist, during the preoperative day hospitalisation (performed during the multidisciplinary preparation for bariatric surgery) when patients are deemed eligible for bariatric surgery according to HAS (High Authority of Health) criteria.

Programming of MRI in the month between preoperative visit and surgery. During this exam without injection of contrast agents in the radiology department of Louis Mourier Hospital, additional sequences with specific acquisitions as previously validated in humans will be performed for the study.

Bariatric surgery will be performed as in usual care in Louis Mourier hospital. The same MRI will be performed in day hospitalization scheduled 6 months after surgery.
Radiation: Magnetic Resonance Imaging
Pancreatic MRI will be performed in severe-obese patients with a planned bariatric surgery, before and 6 months after bariatric surgery.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Quantitative MRI parameters
Time Frame: 6 months after inclusion
Pancreatic fat content
6 months after inclusion
Quantitative MRI parameters
Time Frame: 6 months after inclusion
diffusion parameters (mm² / s)
6 months after inclusion
Quantitative MRI parameters
Time Frame: 6 months after inclusion
transverse magnetization relaxation rate (Hz)
6 months after inclusion
Quantitative MRI parameters
Time Frame: 6 months after inclusion
longitudinal relaxation rate (Hz)
6 months after inclusion
Quantitative MRI parameters
Time Frame: 6 months after inclusion
visco-elastic parameters by measure of tissue stiffness (kPa)
6 months after inclusion

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Metabolic and anthropometric parameters before and after bariatric surgery
Time Frame: 6 months after inclusion
BMI
6 months after inclusion
Metabolic and anthropometric parameters before and after bariatric surgery
Time Frame: 6 months after inclusion
% fat mass in impedance
6 months after inclusion
Metabolic and anthropometric parameters before and after bariatric surgery
Time Frame: 6 months after inclusion
weight loss in percent of preoperative body weight
6 months after inclusion
Metabolic and anthropometric parameters before and after bariatric surgery
Time Frame: 6 months after inclusion
excess weight loss
6 months after inclusion
Metabolic and anthropometric parameters before and after bariatric surgery
Time Frame: 6 months after inclusion
blood pressure
6 months after inclusion
Metabolic and anthropometric parameters before and after bariatric surgery
Time Frame: 6 months after inclusion
HOMA-IR index
6 months after inclusion
lipids parameters
Time Frame: 6 months after inclusion
total cholesterol, HDL, LDL, triglycerides
6 months after inclusion

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Assistance Publique - Hôpitaux de Paris

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 (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 10, 2021

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 27, 2023

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 27, 2023

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 7, 2021

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 6, 2021

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 10, 2021

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 8, 2022

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 7, 2022

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2022

More Information

Terms related to this study

Keywords

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • APHP201020

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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