Exploration by UHF MRI of Hypothalamic Networks Associated to Feeding in Obesity and Anorexia (HYPOTHALNET)

July 8, 2020 updated by: Assistance Publique Hopitaux De Marseille

Food intake is a motivated behaviour that consists of seeking, selecting and ingesting nutritional resources from the environment. Its main function is therefore, depending on these conditions, to ensure the supply, in adequate quantities, of the energy and biochemical substrates necessary for the proper functioning and need of the body. Thus, in addition to maintaining the body's fat mass level stable, dietary behaviour is part of the energy homeostasis system and is thus regulated and maintained by the central nervous system.

Although diet regulation involves several brain regions, the way in which these different regions communicate with each other and influence each other to orchestrate appropriate eating behaviour is not yet fully characterized. Among the structures of this network, the hypothalamus, a small structure (less than 1 cm3 in humans) composed of several nuclei such as the lateral hypothalamus, the arched nucleus or the lateral tuberal nucleus plays a crucial role.

The investigators propose to use ultra high field (7T) magnetic resonance imaging equiping the CEMEREM (CHU Timone, APHM, Marseille) to better characterize the role of this crucial small structure in food intake networks in order to better understand the impact of these structural and functional disorders observed in patients with anorexia nervosa and obesity compared to a control population without eating behaviour disorders.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

66

Phase

  • 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
      • Marseille, France, 13005
        • Recruiting
        • Assistance Publique Hopitaux de Marseille

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 35 years (ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • No depression (HADS and BECK scores)
  • No contraindication to 7T MRI
  • Subject with with social insurance
  • Subject who has signed the informed consent

For obese patients

  • Body mass index > 30kg/m2
  • Body diameter < 60cm (compatible with 7T MR scanner tube)

For anorexic patients

  • mental anorexia according to DMS-V
  • Body mass index < 17kg/m2

For healthy controls

  • 18.5kg/m2<Body mass index < 25kg/m2
  • no feeding behavioral disturbance (SCOFF and EAT 26)

Exclusion Criteria:

  • Pregnant or parturiente woman
  • subject with other neurological or neuropsychiatric diseases
  • subject with addiction

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: OTHER
  • Allocation: NON_RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
ACTIVE_COMPARATOR: healthy controls
Other: MRI exploration
ultra high field (7T) magnetic resonance imaging
EXPERIMENTAL: Anorexia
Other: MRI exploration
ultra high field (7T) magnetic resonance imaging
EXPERIMENTAL: Obesity
Other: MRI exploration
ultra high field (7T) magnetic resonance imaging

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
MRI exploration conducted at 7T
Time Frame: 2 years
Mapping of MRI parameters of 4 sub-regions of the hypothalamus, in order to determine whether the sensitivity of quantitative T1 to 7T imaging at very high resolution can reveal microstructure variations in the 4 sub-regions of the hypothalamus in patients suffering from obesity or anorexia nervosa compared to a control population without eating disorders.
2 years

Collaborators and Investigators

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

Sponsor

Assistance Publique Hopitaux De Marseille

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)

June 25, 2020

Primary Completion (ANTICIPATED)

September 15, 2021

Study Completion (ANTICIPATED)

December 15, 2021

Study Registration Dates

First Submitted

June 22, 2020

First Submitted That Met QC Criteria

June 25, 2020

First Posted (ACTUAL)

June 30, 2020

Study Record Updates

Last Update Posted (ACTUAL)

July 9, 2020

Last Update Submitted That Met QC Criteria

July 8, 2020

Last Verified

June 1, 2020

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2019-45

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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