New Multi-Protein Blood Test Accurately Detects Late-Stage Alzheimer's Disease

A broader panel of protein markers could lead to better blood tests for Alzheimer's

In Alzheimer's disease, amyloid plaques form in the brain, followed by threadlike structures made of the protein tau. Both changes have toxic effects on the brain's nerve cells years before dementia symptoms appear. Historically, diagnosis has primarily relied on cognitive changes, which manifest at a later stage of the disease. Biomarker-based diagnostics were initially limited to specialized clinics capable of performing cerebrospinal fluid sa…

New multi-protein blood test accurately detects late-stage Alzheimer's disease

Researchers have identified seven proteins in the blood that could enable better blood tests for Alzheimer's disease.

New blood test promises to improve accuracy of Alzheimer’s diagnosis — can you get this test in Ontario?

Data presented at the Alzheimer’s Association International Conference 2026 shows the PrecivityAD2 blood test improves the accuracy of diagnosis in primary and specialty care settings.