ClinicalTrials.gg
Not yet recruitingNCT07826975AUMASMARTUpdated Sep 18, 2026

Assessment of Changes in Autonomy Through Analysis of Smartphone Usage Data in Patients With Alzheimer's Disease

An observational study in Alzheimer Disease (AD), sponsored by Poitiers University Hospital. Not yet recruiting. Open to participants aged 60 Years and older. Per ClinicalTrials.gov, last updated 2026-09-18.

Sponsored by Poitiers University Hospital · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
100
Ages
60 Years and older
Sex
All
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Study summary

Alzheimer's disease is the leading cause of dementia worldwide. The first cognitive function to be affected is memory. As the disease progresses, other cognitive systems are affected, leading to a gradual loss of independence for the patient. This loss of independence is at the heart of the psychosocial and medico-economic challenges posed by Alzheimer's disease. Functional independence refers to the patient's ability to perform activities of daily living. The evolution of autonomy varies significantly from one individual to another, and a specific, personalized assessment is necessary in order to offer appropriate care and services. There is a link between patient autonomy and psycho-behavioral disorders. Early identification of loss of autonomy in connection with psycho-behavioral disorders would allow specific treatment to be put in place.

The study hypothesis is that there is a link between changes in smartphone data and changes in the independence of patients with AD.

02

Conditions studied

  • Alzheimer Disease (AD)

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03

In context

Alzheimer Disease

3,965 studies on the registry are indexed under Alzheimer Disease; 926 are open to participants now.

This study's planned enrollment of 100 is below the median of 200 across 814 observational studies indexed under Alzheimer Disease.

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Lead sponsor

Poitiers University Hospital is the lead sponsor of 314 studies on the registry; 62 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
60 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients receiving routine care at a memory resource and research center for Alzheimer's disease who own an Android smartphone.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age ≥ 60 years
  • Patient consulting on routine care at a memory resource and research center for Alzheimer's disease defined by cognitive memory complaints from the patient or their family and friends, evidence of impaired verbal episodic memory storage in FCSRT defined by a sum of FR values less than 17/48 and a sum of CR values less than 40/48 compared to the patient's age and socio-cultural level and no criteria on other neuropsychological tests, progressive decline over at least 6 months affecting independence, and if a brain MRI, a lumbar puncture, and/or an 18FDG PET scan were performed as part of the patient's routine care, the results must be consistent with a diagnosis of MA.
  • Patient with a smartphone for their exclusive use that is compatible with the installation of the IMASMART application on Android
  • No sensory impairment (vision or hearing impairment) that could compromise the use of a smartphone
  • Absence of major anxiety-depressive disorder defined by a HAD score > 16
  • Patient an caregiver not objecting to participating in the study

Exclusion criteria

Exclusion Criteria:

  • Inability to perform the or score \< 17
  • Other neurodegenerative disorders
  • Severe, unstable psychiatric disorders
  • Terminal phase of a severe illness
  • Other conditions that may compromise the use of a smartphone
  • Patients with an iPhone
  • MRI evidence of a lesion that may contribute to cognitive impairment (stroke, tumors, etc.)
  • Refusal to install the application
  • People residing in a residential care for senior or any other medical facility
  • Individuals benefiting from enhanced protection, namely individuals deprived of their liberty by judicial or administrative decision, adults under legal protection, and finally, patients in emergency situations.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

MMSE and MoCA

Short tests of memory and thinking, each scored out of 30. Lower scores suggest more difficulty; criteria give a range, either to include people with memory problems or to leave them out.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
100 participants (estimated)
Target follow-up
18 Months
Patient registry
Yes

Groups and cohorts

  • Alzheimer's patients

    Other: Data collection · Other: Neuropsychological assesment · Other: Autonomy questionnaire

Interventions

  • OtherData collection

    Collection of Android smartphone usage

  • OtherNeuropsychological assesment

    MMSE, FCSRT, FAB, TMT, verbal fluency test, Rey figure, BBEP, langage assesments and HAD scale

  • OtherAutonomy questionnaire

    IADL Amsterdam assessed by the caregiver

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What researchers measure

Primary outcomes

  1. Comparison of changes in smartphone usage data and battery life collected at 0 and 18 months

    To measure the relationship between variations in smartphone usage data-represented as a single parameter created through a mathematical combination-and variations in the Amsterdam IADL questionnaire between 0 and 18 months.

    Time frame: From enrollment to the end of participation at 18 months

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Study locations

No study locations are listed for this record.

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References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Sep 2026; primary completion for Mar 2030, 42 months later.

Of 364 non-industry observational studies under Alzheimer Disease, half reached primary completion within 81 months of starting (the median), counting those still running; a quarter within 39 and three quarters within 203. This study's planned 42 months is below that.

Counting every sponsor, half of 405 studies reached it within 67 months; a quarter within 35 and three quarters within 171.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 10, 2026
First posted
Sep 18, 2026
StartEst.
Sep 2026
Primary completionEst.
Mar 2030
CompletionEst.
Mar 2030
Last update
Sep 18, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 18, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07826975
Responsible party
Sponsor
First posted
Sep 18, 2026
Start date
Sep 2026 (estimated)
Primary completion
Mar 2030 (estimated)
Completion
Mar 2030 (estimated)
Last update
Sep 18, 2026

Study contacts

Adrien JULIAN, MD
Contact
adrien.julian@chu-poitiers.fr
05.49.44.44.44 ext. +33
Céline ABONNEAU
study chair · Poitiers University Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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