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Alzheimer DiseaseAMImage3NCT04044495

Sleep, Rhythms and Risk of Alzheimer's Disease

A study testing Multimodal brain imaging (MRI), Actimetry and Sleep Diary in people with Alzheimer Disease and Sleep, run by University Hospital, Bordeaux at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Alterations in sleep and the sleep / wake cycle, which are particularly common in Alzheimer's disease patients, could represent an early biomarker for cognitive decline and onset of dementia . Read more about this study

Who is it for?
Ages 65 years and older
Conditions the study is for
Alzheimer Disease, Sleep
What is being tested?
Multimodal brain imaging (MRI), Actimetry and Sleep Diary
Could I receive a placebo?
No, everyone receives an active treatment
How many people
47 participants
Where
1 siteFrance
Study dates
9 Sep 2019to 22 Feb 2022
Phase
Interventional
Are there results?
None posted in the registry

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 65 years and older
  • All sexes
  • No healthy volunteers
  • Older adult

Who may be able to join

  • Belonging to AMImage 2 cohort and preferentially belonging to subjects included in the first actimetric assessment. AMI subjects have been selected based on Mutualité Sociale Agricole of Gironde (agricultural Health Insurance system database as followed :
  • >65 years old
  • Retired from agriculture
  • Living in Gironde countryside
  • Being affiliated to the French Farmers Health Insurance
  • Signed Informed Consent

Who cannot join

  • Left Handed subjects
  • Severe dementia (MMSE<13)
  • Stroke
  • Parkinson's disease
  • MRI contraindication
  • Health state not allowing displacement to the hospital
  • Person under gardianship and not able to give its informed consent

Trial locations and contacts

1 site in 1 country.

France1 site
  • CHU de Bordeaux

    Bordeaux, 33 076

Other trials in France

About this study

Official title: "Sleep, Rhythms and Risk of Alzheimer's Disease: a Daily Life Actigraphic Assessment and MRI Study" "SoRyMA - AMImage3"

Alterations in sleep and the sleep / wake cycle, which are particularly common in Alzheimer's disease patients, could represent an early biomarker for cognitive decline and onset of dementia . Moreover, these disturbances in activity rhythms and sleep patterns represent modifiable factors and therefore potential targets for the prevention of certain neurodegenerative disorders.

The main objective of this study will be to test the hypothesis that elderly people without major cognitive impairment who have circadian rhythm disorders of the sleep / wake cycle have structural and / or functional abnormalities in the central nervous system and more specifically of the hippocampal function which could represent a risk factor for the occurrence of cognitive impairment. Indeed, although many studies in both humans and animals suggest the existence of links between sleep alterations and age-related cognitive impairment, the causality of these observations is still not clear.

Read more

This description of the anatomical and functional substratum of sleep / wake cycle alterations occurring in an elderly population will be based on joint analysis of multimodal brain imaging (MRI) and neuropsychology actimetry data. The SoRyMA-AMImage 3 protocol will correspond to the 2nd actimetry measurement point and the 3rd MRI measurement point of a larger population-based cohort AMImage.

This project will collect data from the sleep / wake cycle (actimetry) from a sample of 100 patients included in AMI / AMImage 2 and relate them to brain imaging data (MRI). The main objective of the protocol is the evaluation of the link between changes in sleep and cycle parameters during aging and hippocampal functioning (through fMRI and neuropsychological score of hippocampal dependant tasks). The actimetry variables measured at the two follow-up (4 years apart) will make it possible to measure the degradation of the sleep and cycle parameters (through the reduction of sleep duration, sleep time, increase in sleep fragmentation and decrease in the relative amplitude of the rhythm).

This framework will provide access to a very large amount of data that can be cross-referenced with actimetry data; the longitudinal character of this data collected over a decade will also make it possible to work on the evolution of the actimetry parameters and its relationship with the cognitive and clinical evolution of the subjects. Thus, these data will make it possible to study the prognostic value of the analyzed actimetry parameters in association with very complete clinical and neuropsychological data.

Being tested
Multimodal brain imaging (MRI), Actimetry, Sleep Diary
Keywords
Aging, Sleep/wake Cycle, Hippocampal connectivity, Hippocampal dependant Memory tests, Actigraphy, Functional and structural MRI
Medical subject headings
Alzheimer Disease

What participants receive

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

  • Multimodal brain imaging (MRI)Other

    Multimodal brain imaging (MRI)

  • ActimetryOther

    7 days actimetry

  • Sleep DiaryOther

    7 days Record of sleep and wake cycle

Study groups in NCT04044495
Study groupRoleWhat they receive
Sample of 100 persons included in AMI / AMImage 2ExperimentalSample of 100 persons included in AMI / AMImage 2
Receives: Other: Multimodal brain imaging (MRI); Other: Actimetry; Other: Sleep Diary

What is being measured

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

  1. Bold Signal

    Bold Signal on Magnetic Resonance Imaging (MRI)

    Measured: Day 1

Secondary outcomes (8)
  1. Pittsburgh Sleep Quality Index (PSQI) Score

    seven component scores are derived, each scored 0 (no difficulty) to 3 (severe difficulty). The component scores are summed to produce a global score (range 0 to 21). Higher scores indicate worse sleep quality

    Measured: Day 1

  2. Mannheim Dream questionnaire (MADRE)

    MADRE questionnaire evaluates dream recall frequency, emotional aspects of dreams (intensity and tonality), nightmares, lucid dreaming, attitude towards dreams, effects of dreams on waking life and dream literature reading and has been demonstrated to show high retest reliability

    Measured: Day 1

  3. Epworth Sleepiness Scale

    The test is a list of eight situations in which is rate the tendency to become sleepy on a scale of 0, no chance of dozing, to 3, high chance of dozing

    Measured: Day 1

  4. Toronto Alexithymia Scale (TAS-20)

    The TAS-20 is a self-report scale that is comprised of 20 items.

    The TAS-20 has 3 subscales:

    • Difficulty Describing Feelings subscale is used to measure difficulty describing emotions. 5 items.
    • Difficulty Identifying Feeling subscale is used to measure difficulty identifying emotions. 7 items.
    • Externally-Oriented Thinking subscale is used to measure the tendency of individuals to focus their attention externally. 8 items.

    Items are rated using a 5-point Likert scale whereby 1 = strongly disagree and 5 = strongly agree.

    The total alexithymia score is the sum of responses to all 20 items, while the score for each subscale factor is the sum of the responses to that subscale. The TAS-20 uses cutoff scoring: equal to or less than 51 = non-alexithymia, equal to or greater than 61 = alexithymia. Scores of 52 to 60 = possible alexithymia.

    Measured: Day 1

  5. Positive and Negative Affective Scale (PANAS)

    The PANAS Scale or Positive and Negative Affect Schedule (PANAS) is a self-report questionnaire. The test comprises 20 terms, with ten focusing on a positive emotion and the other ten focusing on a negative emotion. The final score of the PANAS Scale / Positive and Negative Affect Schedule (PANAS) test is the sum of the 10 terms on the positive scale and the sum of the 10 terms on the negative scale. The value assigned is positive for answers on the positive scale and negative for answers on the negative scale.

    Measured: Day 1

  6. Emotional Regulation Questionnaire (ERQ)

    10-item scale designed to measure respondents' tendency to regulate their emotions in two ways: (1) Cognitive Reappraisal and (2) Expressive Suppression. Respondents answer each item on a 7-point Likert-type scale ranging from 1 (strongly disagree) to 7 (strongly agree). The scoring takes the average of all the scores.

    Measured: Day 1

  7. Actimetry

    Automatically record of waking and sleeping periods on 7 consecutive days

    Measured: Up to 7 days

  8. Sleep diary

    Series of questions for each 24-hour period with a collection of bedtime, wake-up time, possible night awakenings or even naps

    Measured: Up to 7 days

Timeline

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

  1. First posted5 Aug 2019
  2. Study start9 Sep 2019
  3. Primary completion22 Feb 2022
  4. Study completion22 Feb 2022

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
Other
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
47 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04044495
Sponsor's protocol ID
CHUBX 2018/15
Other IDs
2019-A00253-54
Acronym
AMImage3
Status last verified
Mar 2022
First submitted
25 Jul 2019
Last updated
1 Jun 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Multimodal brain imaging (MRI), Actimetry and Sleep Diary in people with Alzheimer Disease and Sleep, run by University Hospital, Bordeaux at 1 site in France.

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 6 inclusion and 7 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: finished, as of the sponsor's last update on 1 Jun 2026. 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 France. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Bold Signal (time frame: Day 1). 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 1 Jun 2026.

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