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Sleep Impairment in Subjects at Risk of Developing Alzheimer's Disease
Sponsor: University Hospital, Montpellier
Summary
Alzheimer's disease (AD) is characterised by a progressive loss of memory and cognitive function. In the early stages of AD, there is a progressive accumulation of molecules: β-amyloid peptides (Aβ) in the brain. There is a link between the accumulation of Aβ peptides and the deterioration of sleep, but current knowledge does not confirmed this link. The objective of this study is to define whether there is a link between cognitive decline and sleep disorders. If a correlation is found, this could allow earlier treatment of sleep disorders in the longer term in order to slow the development of AD. Treatment protocols in the field of Alzheimer's disease (AD) are directed towards participants at risk of developing the disease, such as those who carry at least one ε4 allele on apolipoprotein E (APOE ε4). An individual with 2 ε4 copies has a 30-55% risk of developing AD with an age of onset around 68 years and a dose effect of the allele on risk and age of onset of symptoms.
Official title: Objective Sleep Impairment in APOEε4/ε4 Subjects at Risk of Developing Alzheimer's Disease: Risk Factor for Cognitive Decline?
Key Details
Gender
All
Age Range
50 Years - 85 Years
Study Type
INTERVENTIONAL
Enrollment
50
Start Date
2025-02-05
Completion Date
2027-12-01
Last Updated
2025-06-27
Healthy Volunteers
No
Interventions
Polysomnography
Polysomnography will be performed for 24 hours at inclusion and 24 months
Neuropsychological assessment
A full neuropsychological assessment will be performed at inclusion, 12 and 24 months
Questionnaires on sleep and behavioural problems
Questionnaires on sleep and behavioural problems
Actimetrics
Measurement of actimetrics for 14 days at inclusion and at 24 months
Biomarker assay
Determination of the biomarkers Aβ42, Aβ40, Tau and P-Tau in blood and in the cerebrospinal fluid
Locations (1)
CHU de Montpellier
Montpellier, Hérault, France