Neuroimaging Markers of Alzheimer Disease: a Longitudinal Population Study (AMIMAGE 2)

May 11, 2026 updated by: University Hospital, Bordeaux

STUDY OF IMAGING MARKERS IN THE VERY EARLY STAGES OF DEMENTIA AMONG RETIRED RURAL FARM IN THE GIRONDE AND PARTICIPATING IN THE AMI COHORT EPIDEMIOLOGY: A LONGITUDINAL STUDY.

It is now acknowledged that Alzheimer's disease is characterized by a long period of pathophysiological change. Developing new strategies to achieve diagnoses as early as possible has become a major goal for therapies aimed at slowing the progression of this disease. While diagnoses currently rely principally on clinical neuropsychology, the typical diagnostic criteria of NINCDS-ADRDA are inapplicable in the early stage of the disease. The goal of our project is to identify very early imaging markers for Alzheimer's disease among patients with no report of cognitive difficulties. In order to achieve this goal, we propose a longitudinal study in an elderly population cohort.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The AMImage2 project that follows AMImage1 and MRI-3C consists of an imaging study in association with longitudinal epidemiologic cohorts (AMI and 3C). The first objective is to investigate the association between the evolution of imaging markers and the evolution of cognitive performance in normal and pathological aging. This objective will be conducted among subjects having already participated in AMImage1, thereby permitting the longitudinal study of MRI data. An MRI exam will also be proposed to 100 subjects (members of the AMI and 3C cohorts) in order to provide a third wave of MRI (for a longer-term MRI follow-up) or a second one for the participants who only had one MRI exam in the AMImage project. Our second objective is cross-sectional and will study the imaging parameters of subjects presenting signs of cognitive decline over the previous 4 years (through the follow-up conducted in the AMI cohort). Finally, an additional objective will consist in a comparison between two populations very contrasted in terms of cognitive reserve: AMI (very low education level in rural area) and 3C (higher level of education in urban area).

Study Type

Interventional

Enrollment (Actual)

304

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
      • Bordeaux, France, 33000
        • Groupe Hospitalier Pellegrin - C.H.U. de Bordeaux

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

65 years and older (Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • At least 65 years old
  • Be retired from agricultural profession
  • live in rural area in Gironde (France)

Exclusion Criteria:

  • Lefthanded
  • having a dementia (MMSE < 13)
  • Having a vascular cerebral accident
  • Parkinson disease
  • RMI exclusion criteria
  • [18F]-FDG PET SCAN exclusion criteria
  • Poor health condition does not allowing transport to neuroimaging service

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: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Participant from AMI cohort
Other: Neuroimaging
Active Comparator: Participant from 3Ccohort
Other: Neuroimaging

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Measures of volume and diffusion parameters in the gray matter (hippocampus and cingular posterior cortex)
Time Frame: Inclusion (Day 0)
Inclusion (Day 0)

Secondary Outcome Measures

Outcome Measure
Time Frame
Performance on neuropsychological and daily life cognitive tests
Time Frame: Everyday up to Day 7 after inclusion
Everyday up to Day 7 after inclusion

Collaborators and Investigators

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

Sponsor

University Hospital, Bordeaux

Investigators

  • Principal Investigator: Michèle ALLARD, Pr, University Hospital, Bordeaux

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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)

September 1, 2012

Primary Completion (Actual)

June 1, 2015

Study Completion (Actual)

June 1, 2015

Study Registration Dates

First Submitted

April 20, 2012

First Submitted That Met QC Criteria

April 20, 2012

First Posted (Estimated)

April 23, 2012

Study Record Updates

Last Update Posted (Actual)

May 14, 2026

Last Update Submitted That Met QC Criteria

May 11, 2026

Last Verified

March 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CHUBX 2011/15
  • 2011-A01393-38 (Other Identifier: ANSM)

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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