Diagnostics · Screening & Prevention

Alzheimer’s blood tests are for symptomatic patients, not screening

Four Alzheimer's blood tests now have FDA clearance, including PrecivityAD2 and Roche's Elecsys pTau217.

Sep 27, 2026By longevitydocs™ editors
Alzheimer’s blood tests are for symptomatic patients, not screening
Image: The Longevity Medicine Intelligence newsletter

What happened

Four Alzheimer's blood tests now have FDA clearance, including PrecivityAD2 and Roche's Elecsys pTau217. As Time reported, experts agree they belong in the workup of patients with cognitive symptoms, not in screening healthy people, because false positives rise in low-risk groups. Have a clear policy for when to order one and what to do if a patient brings you a result obtained outside that pathway. Time

Originally published in The Longevity Medicine Intelligence newsletter (#108).

WRITTEN BYlongevitydocs™ editorsCurated by the longevitydocs™ editorial team from the weekly newsletter

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