ArticleNature medicine2024
Highly accurate blood test for Alzheimer's disease is similar or superior to clinical cerebrospinal fluid tests.
Article in Nature medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 311 papers, 8 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
311 citing papers in PubMed, 8 syntheses or guidelines pooled it, 369 citations in OpenAlex.
- Prion disease mimicking rapidly progressive Alzheimer disease: case series and systematic review.Journal of neurology · 2026Pooled it
- From Single-Modal to Multi-Modal Artificial Intelligence in Alzheimer's Disease: A Systematic Review of Databases, Modalities, Diagnostic Performance, and Clinical Translation Challenges.Sensors (Basel, Switzerland) · 2026Pooled it
- Plasma p-tau as a biomarker for the differential diagnosis of Alzheimer's disease: a systematic review and meta-analysis.Alzheimer's research & therapy · 2026Pooled it
- From Cerebrospinal Fluid to Blood Draw: Plasma p-Tau217 as a Non-Invasive Biomarker for Alzheimer's Disease: A Fagan Nomogram-Based Meta-Analytic Study.Molecular neurobiology · 2026Pooled it
- Blood-based biomarkers for detecting Alzheimer's disease pathology in cognitively impaired individuals within specialized care settings: A systematic review and meta-analysis.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Pooled it
- Alzheimer's Association Clinical Practice Guideline on the use of blood-based biomarkers in the diagnostic workup of suspected Alzheimer's disease within specialized care settings.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Guideline
- Alzheimer's Association clinical practice guideline for the Diagnostic Evaluation, Testing, Counseling, and Disclosure of Suspected Alzheimer's Disease and Related Disorders (DETeCD-ADRD): Executive summary of recommendations for primary care.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Guideline
- Blood phosphorylated Tau217 distinguishes amyloid-positive from amyloid-negative subjects in the Alzheimer's disease continuum. A systematic review and meta-analysis.Journal of neurology · 2025Pooled it
- Plasma P-tau217 for detecting amyloid clearance after donanemab in Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Trial
- A phase-II randomized controlled pilot study of nicotinamide riboside supplementation in older adults with amnestic mild cognitive impairment.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Trial
- The glymphatic system clears amyloid beta and tau from brain to plasma in humans.Nature communications · 2026Trial
- Effects of Esketamine on Postoperative Cognitive Function in Elderly Patients Undergoing Pulmonary Lobectomy: A Randomised, Single-Blind Controlled Clinical Trial.Actas espanolas de psiquiatria · 2025Trial
- Article
- Prefrontal hemodynamic alterations during resting state and stroop interference in cognitively healthy older adults with high plasma pTau-217 levels.Neuroimage. Reports · 2026Article
- Beyond amyloid and tau: synaptic and neurodegenerative biomarkers shape MCI progression.Molecular psychiatry · 2026Article
- Earlier Disclosure of Blood-Based Biomarkers, Diagnostic Certainty, and Clinical Management: A Randomized Clinical Trial.JAMA neurology · 2026Article
- Oxidative stress and inflammation in neurodegenerative disorders.Archives of toxicology · 2026Review
- Blood-based biomarkers and early diagnosis of Alzheimer's disease.Neural regeneration research · 2026Article
- The value of timely treatment with anti-amyloid therapy for Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Proteoform-specific enrichment of phosphopeptide isomers by polymer-based synthetic receptors.Nature chemical biology · 2026Article
251 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
21 authors at 3 institutions in 3 countries.
Funding
Abstract
With the emergence of Alzheimer's disease (AD) disease-modifying therapies, identifying patients who could benefit from these treatments becomes critical. In this study, we evaluated whether a precise blood test could perform as well as established cerebrospinal fluid (CSF) tests in detecting amyloid-β (Aβ) plaques and tau tangles. Plasma %p-tau217 (ratio of phosporylated-tau217 to non-phosphorylated tau) was analyzed by mass spectrometry in the Swedish BioFINDER-2 cohort (n = 1,422) and the US Charles F. and Joanne Knight Alzheimer Disease Research Center (Knight ADRC) cohort (n = 337). Matched CSF samples were analyzed with clinically used and FDA-approved automated immunoassays for Aβ42/40 and p-tau181/Aβ42. The primary and secondary outcomes were detection of brain Aβ or tau pathology, respectively, using positron emission tomography (PET) imaging as the reference standard. Main analyses were focused on individuals with cognitive impairment (mild cognitive impairment and mild dementia), which is the target population for available disease-modifying treatments. Plasma %p-tau217 was clinically equivalent to FDA-approved CSF tests in classifying Aβ PET status, with an area under the curve (AUC) for both between 0.95 and 0.97. Plasma %p-tau217 was generally superior to CSF tests in classification of tau-PET with AUCs of 0.95-0.98. In cognitively impaired subcohorts (BioFINDER-2: n = 720; Knight ADRC: n = 50), plasma %p-tau217 had an accuracy, a positive predictive value and a negative predictive value of 89-90% for Aβ PET and 87-88% for tau PET status, which was clinically equivalent to CSF tests, further improving to 95% using a two-cutoffs approach. Blood plasma %p-tau217 demonstrated performance that was clinically equivalent or superior to clinically used FDA-approved CSF tests in the detection of AD pathology. Use of high-performance blood tests in clinical practice can improve access to accurate AD diagnosis and AD-specific treatments.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.