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MECHANISMS OF NEURONAL RESILIENCE IN ALZHEIMER'S DISEASE AND ITS FOCAL VARIANTS: A MRI/PET STUDY

Status
Not yet recruiting
Phases
Phase 2Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-519995-20-00
Acronym
C19-40
Enrollment
45
Registered
2025-01-29
Start date
Unknown
Completion date
Unknown
Last updated
2025-01-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Alzheimer's pathology, Maladie d' Alzheimer

Brief summary

1) The topographic distribution regions of tau lesions, thanks to PET brain imaging using the 18F-AV-1451 as a ligand. 2) The correlation between the distribution of these tau lesions and: the cortical volume, the indices of integrity of the white matter bundles, the functional neural networks, as well as the reorganization of the "hubs" of these networks, thanks to the structural MRI, diffusion (MRI) and functional at rest (fMRI) imaging

Detailed description

Correlation between the concentration of tau and tau-phosphorylated proteins in cerebrospinal fluid (CSF) with the severity of hypometabolism measured by tau-PET. To establish this correlation the evaluation criterion is represented on one side by the cortico-cerebellar indices of fixation of the tau protein radioligand in PET, on the other side by the concentration of tau proteins in the CSF and tau-phosphorylated. Correlation between anatomical and functional connectivity.

Interventions

Sponsors

Institut National De La Sante Et De La Recherche Medicale
Lead SponsorOTHER

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
1) The topographic distribution regions of tau lesions, thanks to PET brain imaging using the 18F-AV-1451 as a ligand. 2) The correlation between the distribution of these tau lesions and: the cortical volume, the indices of integrity of the white matter bundles, the functional neural networks, as well as the reorganization of the "hubs" of these networks, thanks to the structural MRI, diffusion (MRI) and functional at rest (fMRI) imaging

Secondary

MeasureTime frame
Correlation between the concentration of tau and tau-phosphorylated proteins in cerebrospinal fluid (CSF) with the severity of hypometabolism measured by tau-PET. To establish this correlation the evaluation criterion is represented on one side by the cortico-cerebellar indices of fixation of the tau protein radioligand in PET, on the other side by the concentration of tau proteins in the CSF and tau-phosphorylated. Correlation between anatomical and functional connectivity.

Countries

France

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026