100,000 volunteers join digital brain health study to catch dementia early

NCT ID NCT04701177

ENROLLING_BY_INVITATION Knowledge-focused Sponsor: Greece 2021 Committee Source: ClinicalTrials.gov ↗

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This observational study will enroll 100,000 people over age 45 to track early signs of Alzheimer's and Parkinson's using smartphone-based tests, genetic data, and brain scans. Researchers aim to develop better ways to identify who is at risk before symptoms worsen. Participants will be followed remotely, making it easier to join from home.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to: If successful, this could lead to better early detection methods for Alzheimer's and Parkinson's, enabling earlier intervention in future trials.
What could go wrong: This is an observational study, not a treatment trial. It will not directly benefit participants and may not produce immediately actionable results.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

Alzheimer disease Asymptomatic Diseases cognitive disorder Cognitive Dysfunction dementia Memory Disorders Parkinson disease parkinsonian disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

ALZHEIMER DISEASE COGNITIVE CHANGE DEMENTIA MEMORY LOSS (EXCLUDING DEMENTIA) MILD COGNITIVE IMPAIRMENT PARKINSON'S DISEASE AND PARKINSONISM PRESYMPTOMATIC DISEASE

Contacts and locations

Locations

Greek Alzheimer's Association and Related Disorders

Thessaloniki, 55250, Greece
Hospital Clinic Barcelona

Barcelona, Spain
Ionian University

Corfu, Corfu, 49100, Greece
Panhellenic Federation Of Alzheimer's Disease And Related Disorders

Thessaloniki, 54643, Greece

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