26Feb 2025
Plasma Biomarkers Predict Amyloid PET Progression in Unimpaired Individuals

Plasma Biomarkers Predict Amyloid PET Progression in Unimpaired Individuals

Plasma phosphorylated tau 217 (%p-tau217) strongly predicted progression from amyloid PET negative (A−) to positive (A+) in 290 cognitively unimpaired individuals. %p-tau217 was associated with a 1.38 increase in the hazard of progression and a 0.50 Centiloid/year increase in amyloid PET change. Amyloid beta 42/40 and Amyloid Probability Score 2 showed weaker associations. These biomarkers could help select participants for primary prevention trials.

  • #neurology

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