Effet de la radiothérapie à faible dose sur l’amyloïde du cerveau dans le traitement de la maladie d’Alzheimer: étude pilote randomisée

Radiation: Low dose radiotherapy

Inclusion Criteria:

- Ability to understand the clinical trial and give an informed consent

- Clinical diagnosis of prodromal AD, or mild or moderate AD

- Ability to undergo neurocognitive assessment at baseline visit, alone or accompanied
by a caregiver

- Amyloid PET scan positivity

- Ability to follow the 5-days RT regiment, alone or accompanied by a caregiver

Exclusion Criteria:

- Inclusion in another disease modifying clinical trial

- Previous therapeutic brain irradiation

- Evidence of vascular cognitive impairment on Magnetic Resonance Imaging (MRI) (Fazekas
score >1 and Wahlund score >=10/30)

- Oncologic disease (excluding skin cancer) active or in remission from less than 5
years

- Evidence of substance abuse (alcohol and/or other drugs) with a dependence during the
previous 12 months (DSM-IV criteria)

- Presence of subdural hygroma's, subdural hematomas or hydrocephalus

- Significant psychiatric comorbidity as assessed during the clinical evaluation by the
neurologist/geriatrician in charge

- Active or recent (within 3 months) cerebral infection/haemorrhage

- Immunocompromised status

- Prior history of seizure

- Dermatological skin disease of the scalp

- Women who are pregnant or breast feeding or who intend to become pregnant during the
course of the study;

- Lack of safe contraception, defined as: female participants of childbearing potential,
not using and not willing to continue using a medically reliable method of
contraception for the entire study duration, such as oral, injectable, or implantable
contraceptives, or intrauterine contraceptive devices, or who are not using any other
method considered sufficiently reliable by the investigator in individual cases;