Can blood reveal why some brains resist Alzheimer's?
NCT ID NCT06582199
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study is for 244 people with early-stage Alzheimer's disease. Researchers want to find new blood markers that show why some people's brains are more resilient to the disease. Participants will give blood samples and take memory tests over time. No new treatment is being tested; the goal is to better understand the disease.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 244 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2024
- Expected to finish
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Sep 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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50 to 90 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Diagnosis of AD according to IWG-2 2014 criteria * Age 50-90 year old * Affiliated or beneficiary of a social security scheme * MMSE ≥ 20 * Abnormal CSF Aβ42 or Aβ40/Aβ42 ratio according to local cut-offs * Abnormal CSF phosphorylated and total Tau according to local cut-offs * Ability to pass neuropsychological assessments * Availability of a brain MRI with T1 volumetric sequence performed within 1 year Exclusion Criteria: * Other cause of dementia * Participation in an AD therapeutic clinical trial * Protected adults (including individual under guardianship by court order),
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Hôpital Cochin
RECRUITINGParis, 75014, France
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