The Claim

The DiSMS and LyMedivh™ AXL plasma p-tau217 assays achieve 94.4% sensitivity and 100% specificity in distinguishing Alzheimer’s dementia from cognitively unimpaired individuals, matching the performance of the reference ALZpath Simoa assay, indicating they are viable alternatives for clinical diagnosis.

Source: Diagnostic performance of plasma p-tau217 levels measured with different assays for Alzheimer’s disease

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
44score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Quantitative
1 study reviewed
In plain English

Two new blood tests for p-tau217 detect Alzheimer’s dementia with 94.4% accuracy in identifying affected individuals and 100% accuracy in identifying those without dementia, performing identically to the established ALZpath Simoa assay.

See the scientific wording

The DiSMS and LyMedivh™ AXL plasma p-tau217 assays achieve 94.4% sensitivity and 100% specificity in distinguishing Alzheimer’s dementia from cognitively unimpaired individuals, matching the performance of the reference ALZpath Simoa assay, indicating they are viable alternatives for clinical diagnosis.

Why this might work

In Alzheimer’s disease, abnormal tau proteins clump inside brain cells and form tangles; as these tangles grow, fragments of the modified tau protein leak into the fluid around brain cells and enter the bloodstream. Blood tests can detect these fragments with extreme accuracy, distinguishing people with the disease from those without it.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: Diagnostic performance of plasma p-tau217 levels measured with different assays for Alzheimer’s disease

    Two new blood tests for Alzheimer’s caught 94 out of 100 people with the disease and never wrongly said someone had it when they didn’t — just like the best test we already have.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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