The Swedish BioFINDER - Preclinical AD Study

NCT ID: NCT06121544

Last Updated: 2025-04-27

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

800 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-04-01

Study Completion Date

2026-12-31

Brief Summary

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This research study aims to examine biomarkers of Alzheimer's disease (AD) as early as possible which could potentially be a screening tool for the general population. This observational study will take place at the Skåne University Hospital in Sweden. The study will enroll up to 600 cognitively healthy subjects aged 50 to 80 years with 3/4 having preclinical Alzheimer's disease. Recruitment and enrollment will be ongoing for 2-3 years, and subject participation will be lasting approximately 4 years. Disclosure of AD risk assessments will be an optional procedure.

Detailed Description

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Conditions

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Alzheimer Disease Mild Cognitive Impairment Mild Dementia

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Cognitively unimpaired individuals with preclinical Alzheimer's disease

75% of the recruited population will be cognitively unimpaired individuals with preclinical Alzheimer's disease.

Plasma tau

Intervention Type DIAGNOSTIC_TEST

Plasma levels of different p-tau and np-tau species

Plasma Ab42/Ab40

Intervention Type DIAGNOSTIC_TEST

Plasma levels of Ab42/Ab40 ratio

Flutemetamol F18 Injection

Intervention Type DIAGNOSTIC_TEST

Positron emission tomography (PET) imaging of amyloid-β plaques

[18F]-RO6958948 Injection

Intervention Type DIAGNOSTIC_TEST

PET imaging of Tau aggregates

Magnetic resonance imaging (MRI)

Intervention Type DIAGNOSTIC_TEST

Different MRI sequences relevant for brain imaging

Cognitively unimpaired individuals without preclinical Alzheimer's disease.

25% of the recruited population will be cognitively unimpaired individuals without preclinical Alzheimer's disease.

Plasma tau

Intervention Type DIAGNOSTIC_TEST

Plasma levels of different p-tau and np-tau species

Plasma Ab42/Ab40

Intervention Type DIAGNOSTIC_TEST

Plasma levels of Ab42/Ab40 ratio

Flutemetamol F18 Injection

Intervention Type DIAGNOSTIC_TEST

Positron emission tomography (PET) imaging of amyloid-β plaques

[18F]-RO6958948 Injection

Intervention Type DIAGNOSTIC_TEST

PET imaging of Tau aggregates

Magnetic resonance imaging (MRI)

Intervention Type DIAGNOSTIC_TEST

Different MRI sequences relevant for brain imaging

Interventions

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Plasma tau

Plasma levels of different p-tau and np-tau species

Intervention Type DIAGNOSTIC_TEST

Plasma Ab42/Ab40

Plasma levels of Ab42/Ab40 ratio

Intervention Type DIAGNOSTIC_TEST

Flutemetamol F18 Injection

Positron emission tomography (PET) imaging of amyloid-β plaques

Intervention Type DIAGNOSTIC_TEST

[18F]-RO6958948 Injection

PET imaging of Tau aggregates

Intervention Type DIAGNOSTIC_TEST

Magnetic resonance imaging (MRI)

Different MRI sequences relevant for brain imaging

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

1. Age 50-80
2. Individuals aged 50-60 require at least one of the following risk factors for AD:

1. Known APOE-E4 carrier
2. Known 1st degree family history of dementia or severe memory loss with onset prior to 75.
3. Known amyloid brain pathology by either CSF or PET scan.
3. Mini-Mental State Examination (MMSE) ≥26 (aged \>65); MMSE ≥27 (aged 50-65).
4. Score of 12 or above on the Montreal Cognitive Assessment (MoCA) telephone version.
5. Speaks and understands Swedish to the extent that an interpreter is not necessary to fully understand the study information and cognitive tests.

6a. Preclinical AD subgroup (n=450): Amyloid pathology according to CSF AD biomarkers and Aβ-PET scans.

6b. Non-Preclinical AD subgroup (n=150): No sign of preclinical AD using CSF AD biomarkers or Aβ-PET scans.

Exclusion Criteria

1. Fulfils the criteria for minor or major neurocognitive disorder according to The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5).
2. History of significant brain injury or other known neurologic disease or insult, resulting in lasting cognitive sequelae that would confound the assessment and staging of potential neurodegenerative disease.
3. Major depression, bipolar disorder, or recurrent psychotic disorders within the past year.
4. History of alcohol and/or substance abuse or dependence within the past year.
5. Significant unstable systemic illness or organ failure, such as terminal cancer, that makes it difficult to participate in the study.
6. Refusing or unable to complete baseline cognitive and biomarker assessments (i.e., cognitive testing, blood draw, MRI and PET).
Minimum Eligible Age

50 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Lund University

OTHER

Sponsor Role collaborator

Skane University Hospital

OTHER

Sponsor Role lead

Responsible Party

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Erik Stomrud

M.D., PhD

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Skåne University Hospital

Malmo, , Sweden

Site Status RECRUITING

Countries

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Sweden

Central Contacts

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Oskar Hansson, MD, PhD

Role: CONTACT

+46-40-331000

Erik Stomrud, MD, PhD

Role: CONTACT

+46-40-331000

Facility Contacts

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Erik Stomrud, MD, PhD

Role: primary

Other Identifiers

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SAIS

Identifier Type: -

Identifier Source: org_study_id

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