Study to Understand Novel Biomarkers in Researching Dementia

NCT ID: NCT06547099

Last Updated: 2026-01-16

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

1800 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-08-14

Study Completion Date

2028-12-31

Brief Summary

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The purpose of this study is to determine the relationships between amyloid, tau, and neurodegeneration biomarkers in the blood and the presence of Alzheimer's disease (AD) pathology, clinical cognitive decline, and diagnosis. We aim to understand how well blood-based biomarkers can diagnose and predict Alzheimer's disease, which will help to further develop and validate blood tests for the disease.

Detailed Description

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All participants who are eligible and provide informed consent will complete an initial study visit, which includes a research blood collection and cognitive assessments. Depending on the results of the cognitive assessments, participants will complete follow-up visits annually or biennially for additional cognitive testing, research blood collections, and potential clinical testing for Alzheimer's disease as determined by the participant's medical provider.

Conditions

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Alzheimer Disease Mild Cognitive Impairment Dementia

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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Cognitively normal

Participants without symptoms of cognitive impairment will be followed up annually for potential cognitive changes, and will complete additional blood collections every two years.

Research blood collection

Intervention Type OTHER

Research blood assays for amyloid, tau, and neurodegeneration

Cognitive assessments

Intervention Type OTHER

Clinical Dementia Rating (CDR) or electronic Clinical Dementia Rating (eCDR); Montreal Cognitive Assessment (MoCA)

Cognitively impaired

For participants with symptoms of cognitive impairment, their medical providers will review the results of the research cognitive assessments and determine whether further testing (a clinical tau PET scan and choice of an amyloid PET, cerebrospinal fluid, or blood clinical test for amyloid plaques) is needed. Symptomatic participants will be followed up annually for research blood collections and cognitive assessments.

Clinical tau PET

Intervention Type DIAGNOSTIC_TEST

Tau PET (flortaucipir)

Clinical amyloid test

Intervention Type DIAGNOSTIC_TEST

Amyloid PET (florbetapir), CSF amyloid test, or blood amyloid test

Research blood collection

Intervention Type OTHER

Research blood assays for amyloid, tau, and neurodegeneration

Cognitive assessments

Intervention Type OTHER

Clinical Dementia Rating (CDR) or electronic Clinical Dementia Rating (eCDR); Montreal Cognitive Assessment (MoCA)

Interventions

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Clinical tau PET

Tau PET (flortaucipir)

Intervention Type DIAGNOSTIC_TEST

Clinical amyloid test

Amyloid PET (florbetapir), CSF amyloid test, or blood amyloid test

Intervention Type DIAGNOSTIC_TEST

Research blood collection

Research blood assays for amyloid, tau, and neurodegeneration

Intervention Type OTHER

Cognitive assessments

Clinical Dementia Rating (CDR) or electronic Clinical Dementia Rating (eCDR); Montreal Cognitive Assessment (MoCA)

Intervention Type OTHER

Eligibility Criteria

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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
Minimum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Institute on Aging (NIA)

NIH

Sponsor Role collaborator

Washington University School of Medicine

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Randall Bateman, MD

Role: PRINCIPAL_INVESTIGATOR

Washington University School of Medicine

David Carr, MD

Role: STUDY_DIRECTOR

Washington University School of Medicine

Locations

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Washington University School of Medicine

St Louis, Missouri, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Lisa Soke

Role: CONTACT

314-747-4857

Facility Contacts

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Lisa Soke

Role: primary

314-747-4857

References

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Li M, Li Y, Schindler SE, Yen D, Sutcliffe S, Babulal GM, Benzinger TLS, Lenze EJ, Bateman RJ. Design and feasibility of an Alzheimer's disease blood test study in a diverse community-based population. Alzheimers Dement. 2023 Dec;19(12):5387-5398. doi: 10.1002/alz.13125. Epub 2023 May 19.

Reference Type BACKGROUND
PMID: 37204806 (View on PubMed)

Janelidze S, Bali D, Ashton NJ, Barthelemy NR, Vanbrabant J, Stoops E, Vanmechelen E, He Y, Dolado AO, Triana-Baltzer G, Pontecorvo MJ, Zetterberg H, Kolb H, Vandijck M, Blennow K, Bateman RJ, Hansson O. Head-to-head comparison of 10 plasma phospho-tau assays in prodromal Alzheimer's disease. Brain. 2023 Apr 19;146(4):1592-1601. doi: 10.1093/brain/awac333.

Reference Type BACKGROUND
PMID: 36087307 (View on PubMed)

Janelidze S, Teunissen CE, Zetterberg H, Allue JA, Sarasa L, Eichenlaub U, Bittner T, Ovod V, Verberk IMW, Toba K, Nakamura A, Bateman RJ, Blennow K, Hansson O. Head-to-Head Comparison of 8 Plasma Amyloid-beta 42/40 Assays in Alzheimer Disease. JAMA Neurol. 2021 Nov 1;78(11):1375-1382. doi: 10.1001/jamaneurol.2021.3180.

Reference Type BACKGROUND
PMID: 34542571 (View on PubMed)

Other Identifiers

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R01AG061900

Identifier Type: NIH

Identifier Source: secondary_id

View Link

202405156

Identifier Type: -

Identifier Source: org_study_id

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