New Imaging Biomarkers Predictive of MA Progression
Recruiting · NCT05939362 · Interventional (participants receive a specific treatment) · Lead sponsor: Poitiers University Hospital
View the official record on ClinicalTrials.gov →Interventions studied
What this trial is about
The pathophysiology of AD is complex. In addition to amyloid plaques and neurofibrillary degeneration, there is a metabolic alteration of the energy pathways, oxidative phosphorylation and glycolysis, which are involved in brain function. Several authors have shown a series of early metabolic dysregulations via an increase in phosphorylation at the origin of neuronal death. Ultra-high field imaging (7T MRI) may allow, with its better spatial resolution and advanced imaging techniques, to shed light on the mechanisms of progression of Alzheimer's disease. A Magnetic Resonance Spectroscopy (MRS) examination can be coupled to brain MRI without additional risk for the patient. Multinuclear 1H-31P metabolic imaging is a promising tool that can provide information on the metabolic evolutionary profile of AD. Thus, we propose a longitudinal study in patients with early-stage AD on 7T MRI-MRS.
Who can take part
Inclusion criteria
- French-speaking patients aged 60 to 90 years,
- Patient in the context of Alzheimer's disease \* for which imaging after MRI is prescribed as part of the usual diagnostic process,
- \*Alzheimer's disease is diagnosed by the doctor of the memory consultation and is defined by :Evidence of a storage disorder in verbal episodic memory at LR/RI defined by a sum of LR \< 17/48 and sum of RT \< 40/48 +/- Impairment of executive functions possible (BREF, TMT grefex, verbal fluencies) +/- Impairment of instrumental functions possible (Grémots noun naming, Rey's figure, Mahieux's Battery).
- MMSE score ≥18,
- Written informed consent after the patient has been informed,
- Progressive decline for at least 6 months.
Exclusion criteria
- Partially or completely illiterate patient unable to read and write,
- Patient with an absolute contraindication to 7T MRI
- Severe psychiatric pathology not balanced,
- Non-degenerative neurological disease (stroke, multiple sclerosis ...),
- Patient with tumor or inflammatory pathology, or vascular leukopathy visualized in MRI (Fazekas score \> 3)
Where it is running
1 location listed.
- Chu Poitiers - Poitiers, France