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AgingACCTNCT04905849

Enhancing Cognitive Control Abilities Using Mobile Technology in a Senior Living Community

A study of Aging and Cognitive Change, run by University of California, San Francisco at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The goal of this study is to test the feasibility of launching a personalized digital health assessment and remediation program for the older adults in senior living communities based upon an initial characterization of these abilities. Read more about this study

Who is it for?
Ages 50 years and olderHealthy volunteers can take part
Conditions the study is for
Aging, Cognitive Change
Could I receive a placebo?
No, everyone receives an active treatment
How many people
12 participants
Where
1 siteUnited States
Study dates
1 May 2021to 1 Dec 2022
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 50 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Must be living at a Senior Living Community
  • have own iPad and/or smartphone,
  • native-English speaker.
  • Participation across a spectrum of cognitive abilities is desired for this study, specifically for older adults in a community setting.

Who cannot join

  • Do not have any physical or cognitive limitations that would clearly prevent them from utilizing these applications as intended

Trial locations and contacts

1 site in 1 country.

United States1 site
  • UC San Francisco

    San Francisco, California, 94158

Other trials in United States

About this study

The goal of this study is to test the feasibility of launching a personalized digital health assessment and remediation program for the older adults in senior living communities based upon an initial characterization of these abilities. Evidence of feasibility here using these unique methodological approaches would provide empirical evidence supporting the basis for a larger-scale implementation of such digital health technologies into less controlled senior settings.

Being tested
Adaptive Cognitive Control Trainer (ACCT), Active Control App

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Adaptive Cognitive Control Trainer (ACCT)Behavioural

    Module 1: Attention=> This module demands an active scan of the screen in search for a target, much like traditional visual search tasks. Participants quickly identify the direction that a probe target is facing (up, down, left, right), and are aided by the presence of directional cue indicating where the location of the target will appear.

    Module 2: Goal Management=> Requires participants to rapidly switch their focus based on distinct rules. Participants are presented with exemplar objects along with a target, and are asked to indicate which exemplar presented is most like the target.

    Module 3: Working Memory=> Engages spatial working memory resources similar to the Corsi block task. Participants memorize the location of objects on screen followed by a 5-7 second delay period, with a correct response leading to a greater number of potential targets to be memorized on the next trial (and vice versa).

  • Active Control AppBehavioural

    The app used here is undergoing expectancy-matching at the present time, will be updated with the final app characteristics when completed out of a list of several possibilities

Study groups in NCT04905849
Study groupRoleWhat they receive
Adaptive Cognitive Control Trainer (ACCT)ExperimentalThere are three modules within the game, each training a different aspect of cognitive control (attention, goal management, working memory): a visual search task for attention abilities, a spatial span task for working memory, and a task switching paradigm for goal management abilities. There are also 3 different levels of difficulty associated with each module; advancing to the next level delivers an advanced challenge that enhances the difficulty in performing the given cognitive task. Participants advance to the next level of difficulty following 6 training sessions occurring over 2 weeks, with the total training experience being 6 weeks of training (3 days/week), with each training session lasting 36 minutes (not including self-paced breaks).
Receives: Behavioral: Adaptive Cognitive Control Trainer (ACCT)
Active Control GroupActive comparatorAn active control application will be used for this arm. The total training experience here will also be for 6 weeks (3 days/week), with each training session lasting ~30 minutes (not including self-paced breaks). Here an app that is matched in terms of expectancy of benefits compared to our training groups will be determined by questioning 100 naïve individuals to predict their expected improvement on each cognitive domain across a multitude of possible applications.
Receives: Behavioral: Active Control App

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Participants Who Attempted to Complete the Adaptive Cognitive Evaluation (ACE) From Baseline at 6 Weeks

    ACE is a custom mobile cognitive health assessment battery that presents paradigms typically used in standard cognitive neuroscience laboratories. Here the investigators will assess a measure of (1) Attention and (2) Working memory in the ACE software.

    Measured: At Baseline and post intervention at the 6 week mark

Secondary outcomes (3)
  1. Mean Performance on the Everyday Cognition Scale (ECog) From Baseline at 6 Weeks

    The Everyday Cognition Scale (ECog) measures the ability to perform everyday tasks that demand memory, language, visuospatial abilities, planning, organization, and divided attention. The ECog consists of a global and domain scores for each of the previously described categories, and is scored as follows: 1= better or no change compared to 10 years earlier, 2= questionable/occasionally worse compared to 10 years earlier, 3= consistently a little worse compared to 10 years earlier, 4= consistently much worse compared to 10 years earlier. Thus, the lower the overall score is on this measure at both the global and domain score level, the better one is performing with respect to their cognition.

    Measured: At Baseline and post intervention at the 6 week mark

  2. Mean Change on Cognitive Failures Questionnaire (CFQ) From Baseline at 6 Weeks

    The Cognitive Failures Questionnaire (CFQ) assesses participant distractibility. The CFQ score ranges from 0 to 100, with the lower the overall score is on this measure, the better one is performing with respect to their cognition.

    Measured: At Baseline and post intervention at the 6 week mark

  3. Mean Change on General Health and Well-being (SF-36) From Baseline at 6 Weeks

    The general health and well-being (SF-36) score assesses participant health. The SF-36 score ranges from 0 to 100. The higher the overall score is on this measure, the better one is performing with respect to their health and well-being.

    Measured: At Baseline and post intervention at the 6 week mark

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 May 2021
  2. Study start1 May 2021
  3. Primary completion1 Oct 2022
  4. Study completion1 Dec 2022

Why it stopped: COVID-19 pandemic prevented the participating senior centers from recruiting as originally stipulated

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04905849
Sponsor's protocol ID
R21AG058896
Other IDs
R21AG058896
Acronym
ACCT
Status last verified
Jun 2025
First submitted
24 May 2021
Last updated
3 Jul 2025
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study of Aging and Cognitive Change, run by University of California, San Francisco at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 3 Jul 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 3 Jul 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Participants Who Attempted to Complete the Adaptive Cognitive Evaluation (ACE) From Baseline at 6 Weeks (time frame: At Baseline and post intervention at the 6 week mark). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Jul 2025; AzTrials last refreshed its copy on 27 Oct 2026.

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