Understanding blood biomarkers for Alzheimer's disease

Blood Amyloid, Tau, and Neurodegeneration Biomarkers and Prediction of Clinical Onset, Cognitive Decline, and Dementia Diagnosis

Observational Washington University School of Medicine · NCT06547099

This study is testing if certain blood markers can help identify and predict Alzheimer's disease in people aged 60 and older.

Quick facts

Study typeObservational
Enrollment1800 (estimated)
Ages60 Years and up
SexAll
SponsorWashington University School of Medicine Academic / other
Locations1 site (St Louis, Missouri)
Trial IDNCT06547099 on ClinicalTrials.gov

What this trial studies

This study aims to explore the relationships between blood-based biomarkers, specifically amyloid, tau, and neurodegeneration, and their association with Alzheimer's disease pathology and cognitive decline. Eligible participants aged 60 and older will undergo initial cognitive assessments and blood collection, with follow-up visits for additional testing based on their cognitive status. The goal is to validate blood tests that could aid in the diagnosis and prediction of Alzheimer's disease.

Who should consider this trial

Good fit: Ideal candidates are individuals aged 60 and older who exhibit symptoms of forgetfulness, mild cognitive impairment, mild dementia, or have a diagnosis of Alzheimer's disease.

Not a fit: Patients who are unable to perform basic daily activities due to cognitive impairment or those currently taking disease-modifying drugs for Alzheimer's may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to the development of reliable blood tests for diagnosing Alzheimer's disease, improving early detection and management.

How similar studies have performed: Other studies have shown promise in using blood biomarkers for Alzheimer's diagnosis, indicating that this approach is gaining traction in the field.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* At least 60 years of age
* 80% of the newly enrolled clinic-based cohort will have symptoms of forgetfulness, mild cognitive impairment, mild dementia, or Alzheimer's disease as determined by their medical chart and/or provider
* All SEABIRD participants will be invited to participate regardless of their cognitive status

Exclusion Criteria:

* Unable to perform one or more basic activities of daily living (eating, bathing, dressing, ambulating, toileting) due to cognitive impairment
* Uncontrolled hepatitis B, hepatitis C, or HIV at time of blood collection
* Taking a disease-modifying drug for AD at time of enrollment
* Blood transfusion in the last three months
* Unwilling or unable to participate in all study activities

Where this trial is running

St Louis, Missouri

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Alzheimer DiseaseMild Cognitive ImpairmentDementia
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.