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Smartwatches may catch Alzheimer's before symptoms show

NCT ID NCT07391436

Knowledge-focused Sponsor: Getúlio Vargas University Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study will test if wearable devices like smartwatches and rings can detect early signs of mild cognitive impairment and Alzheimer's disease in 150 adults aged 65 and older. Participants will wear the devices for 30 days while researchers collect data on activity, sleep, and heart rate, alongside standard tests. The goal is to build a model that identifies early cognitive decline, potentially allowing for earlier intervention and better quality of life.

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

Study facts

What this study's own registry entry says, in plain language.

Participants

About 150 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Mar 2026

An estimate. Start dates often move.

Expected to finish

Dec 2027

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Participants will be identified primarily at the Dementia Clinic of the Araújo Lima Outpatient Clinic while waiting to see a neurologist. A clinical screening will be conducted by trained nurses to verify the presence of characteristics compatible with the eligibility criteria according to CRF02 Eligibility. In addition to these patients, individuals referred by physicians not affiliated with HUGV or who directly seek out the Clinical Research Center (CPC/HUGV) after learning about the study through social media, institutional publications, or news reports may also undergo the same pre-screening. Patients who meet the inclusion criteria will initially be invited to a presentation on the objectives, procedures, risks, and benefits of participating in the project. If they agree to participate voluntarily in the project, they will be presented with the Informed Consent Form (ICF) for subsequent signature, in accordance with current ethical guidelines.

Ages

65 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion criteria Age 65 years or older; Clinical suspicion of MCI, early AD Patients who are conscious, oriented, and able to respond to questionnaires; Ability and willingness to use wearable devices for 30 days; Signature of the Informed Consent Form (ICF) Non-inclusion criteria Advanced dementia Severe uncontrolled psychiatric disorder Severe visual or hearing impairment that prevents communication Severe physical or cognitive inability to use wearables Pacemaker incompatible with the devices Exclusion criteria Unconfirmed diagnosis of MCI or early AD; Voluntary withdrawal at any stage of the study; Death during the research period; Inappropriate use or non-adherence to the use of wearable devices Refusal or inability to fully perform the requested tests and exams.

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Conditions

The condition(s) this trial relates to.

Alzheimer disease Cognitive Dysfunction

As listed by the trial registrant

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

Alzheimer's disease Alzheimer's disease dementia Mild cognitive impairment

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Getúlio Vargas University Hospital

    Manaus, Amazonas, 69020-170, Brazil

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