- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01746706
Can the Assessment of the Subhippocampal Region Contribute to the Detection of Early Diagnosis of Alzheimer's Disease? A Validation Study Using PET With Florbetapir (AV-45).
Can the Assessment of the Subhippocampal Region Contribute to the Detection of Early Diagnosis of Alzheimer's Disease?
Reliable diagnosis of Alzheimer's Disease (AD) at the predementia stage is currently considered to be a priority for research, as disease modifying therapies are being evaluated. Many studies focus on the functional and morphological assessment of the hippocampal formation. However, neurofibrillary tangles, associated with cognitive deficits, initially affect the anterior subhippocampal cortex (transentorhinal, entorhinal and perirhinal cortex) before reaching the hippocampus. Studies from our group have tried to investigate if the assessment of subhippocampal regions using cognitive tools and neuroimaging techniques could contribute to the diagnosis of AD at a very early stage.
In a previous project, the investigators included 40 patients with single domain amnestic MCI (Mild Cognitive Impairment), known to be at high risk for AD and demonstrated that aMCI patients with a profile of subhippocampal dysfunction (impaired performance on a visual recognition memory task) display other clinical as well as imaging profiles of patients with early AD using MRI and SPECT. Longitudinal follow-up data in these patients is currently under way. Preliminary data indicates that evaluating the subhippocampal region using visual recognition tasks is highly predictive of AD over 6 years.
The aim of this project is to obtain additional diagnostic data using a PET amyloid tracer (Florbetapir F18 AV45 F18), an in-vivo marker of one of the neuropathological lesions that define AD, of in order to enhance diagnostic accuracy AD in these patients. This approach will validate the hypothesis as to whether the assessment of subhippocampal dysfunction can contribute to the early diagnosis of AD.
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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-
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Marseille, France, 13354
- Assistance Publique Hopitaux de Marseille
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
patients:
- - A score in the MMS (Folstein and al ., on 1975, French version subjected to consensus of Greco). 24 for the level subjects I (less than 5 years of study), 26 and more for the others, the autonomy in the everyday life,
- A lower normal IADL < = 1/4 (Lawton and Brody, on 1969, version 4 items),
- A complaint mnemonic of the patient
- A lower performance of 1,5 standard deviation in the standard in the reminder(abseiling) postponed from the sub-test of logical memory(report) of the WMS-III and/or in the free reminder(abseiling) postponed from the test(event) of the California Verbal Learning Test.
volunteers:
- 50-80-year-old and presented an educational level sailed in that of the patients,
- a MMS upper to 24 for the level subjects I (5 years of study), 26 and more for the levels 2 and 3,
- an Autonomy of the everyday life,
- normal IADL = 0/4
- did not present mnemonic complaint,
- a performance normal for the reminder postponed from the subtest of logical memory of the WMS-III and for the free reminder(abseiling) postponed from the test(event) of the California Verbal Learning Test.
Exclusion Criteria:
- Incapacitated to realize the examination by FART because of medical intercurrent affections. There are this day no contraindications in the product Florbetapir used for the TEPscan.
- The persons under protection of justice cannot be included, because the law forbids their participation biomedical researches.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: patients
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Experimental: volunteers
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
the assessment of subhippocampal dysfunction
Time Frame: 24month
|
PET amyloid tracer (Florbetapir F18 AV45 F18)
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24month
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Collaborators and Investigators
Investigators
- Principal Investigator: mira DIDIC, AP HM
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2011 A00383-38
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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