Understanding circadian rhythms and risk factors in dementia patients

Circadian Rhythm and Other Individual Factors Among Memory Clinic Patients

Assistance Publique - Hôpitaux de Paris · NCT05977712

This study is trying to find out how daily body clock patterns and other personal factors affect different types and stages of dementia to help with early diagnosis and understanding how the disease progresses.

Quick facts

Study typeObservational
Enrollment1200 (estimated)
Ages18 Years and up
SexAll
SponsorAssistance Publique - Hôpitaux de Paris (other)
Locations2 sites (Paris, France and 1 other locations)
Trial IDNCT05977712 on ClinicalTrials.gov

What this trial studies

The CIRCAME project is an observational study conducted at two memory clinics in Paris, focusing on identifying circadian rhythm components and individual risk factors associated with various subtypes and stages of dementia. It aims to develop cost-effective screening tools for early diagnosis in primary care settings, independent of known risk factors. Additionally, the study seeks to understand factors related to the progression of dementia, including cognitive decline and daily living limitations, over a period of up to 15 years. Participants will undergo clinical examinations, questionnaires, and eye assessments to gather comprehensive data.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and over who are patients at the participating memory clinics and can provide informed consent.

Not a fit: Patients with psychiatric disorders that could explain cognitive symptoms or those unable to participate due to severe cognitive impairment may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved early diagnosis and management of dementia, enhancing patient care and outcomes.

How similar studies have performed: While the approach of using circadian rhythms in dementia assessment is innovative, similar studies have shown promise in understanding risk factors for dementia.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patient of legal age (18 or over)
* Signed informed consent form
* Patient affiliated to the french social security system

Exclusion Criteria:

* Skin allergy to plastic
* Diagnosis of psychiatric disorder that can explain all cognitive symptoms
* Inability to come accompanied for patients with a Mini-Mental State Examination (MMSE) cognitive score ≤18 or a clinician assessment indicating the need to be accompanied (e.g. wheelchair use, agitation)
* Participation at the time of inclusion and during the 9-day period of wearing the accelerometer in interventional research with potential impact on circadian rhythm

Where this trial is running

Paris, France and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Dementia, Circadian rhythm, Sleep disturbance, APOE, Retinal measures, Dementia subtypes, stages and progression, Alzheimer's disease, Lewy body dementia

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.