A Cohort Study of Early Onset Neurodegenerative Dementias Prognostic Factors (NEODEM)

Study of Behavioural and Psychological Symptoms as Functional Prognostic Factors in Neurodegenerative Early Onset Major Neurocognitive Disorders

NEODEM is a multicenter cohort study of patients with early-onset degenerative dementia (before age 65), the main objective of which is to study behavioral disorders and in particular depression as functional prognostic factors at 3 years.

Study Overview

• Status: Active, not recruiting
• Conditions: Dementia
• Intervention / Treatment: Other: Neuropsychological scales

Detailed Description

Early-onset dementia (EOD), which begins before the age of 65, is less common than late-onset dementia but represents a significant burden for the patient, their family and the healthcare system. The descriptive epidemiology is poorly known, and the National Reference Center for young patients, using English data (Harvey et al., 2003) estimates the number of subjects concerned in France at 18,318. It is degenerative dementia that is the most common cause of EOD and among them, Alzheimer's disease and then frontotemporal degeneration (FTD) (Vieira et al., 2013). The natural history and prognostic factors of PDD are not well known, and only AD has some data. Alzheimer's disease (AD) in young people appears to have a worse prognosis than that in older people, but this is debated (Stanley and Walker, 2014) and also depends on the criteria studied: cognition, function or survival. Prognostic factors other EOD, and in particular frontotemporal dementias, which moreover are heterogeneous pathologies, are even less known.

Investigators have chosen to study the functional prognosis of patients because it is both very relevant to care needs and easy to measure. Among the prognostic factors of functional status, investigators will study in particular psycho-behavioral disorders, and in particular depression, which is very common in patients with EOD, a factor of poor quality of life and accessible to treatment. Other potential prognostic factors such as cognitive reserve, gender, clinical variants of AD and DFT, family status (living alone or having a caregiver), genetic status, family history of dementia, CSF biomarkers and MRI imaging will be studied . The evolution of instrumental activities of daily living will be measured. The social and paramedical resources used by the patient and his family will be collected, as well as the use of psychotropic and non-drug treatments. Finally, the overall evolution of the severity of dementia will be measured.

Eligible patients will be included for 3 years and evaluated every 6 months.

• Study Type: Observational
• Enrollment (Actual): 163

Contacts and Locations

• Study Contact: Name: Sophie AURIACOMBE, M.D; Phone Number: 33(0)5 57 82 01 16; Email: sophie.auriacombe@u-bordeaux.fr

Study Locations

• France
  • Bordeaux, France, 33076
    • CHU de Bordeaux

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 16 years to 63 years (Adult, Older Adult)
• Accepts Healthy Volunteers: N/A

• Sampling Method: Non-Probability Sample

Study Population

Newly diagnosed neurodegenerative (within 6 months) EOD according to international consensus criteria with symptoms onset before 65 years old

Description

Inclusion Criteria:

1. Newly diagnosed neurodegenerative (within 6 months) EOD according to international consensus criteria
2. Symptoms onset before 65 years old
3. Clinical Dementia Rating Scale (CDR) 0.5 to 1 both inclusive
4. Affiliated person or beneficiary of a social security scheme.
5. Free and informed consent obtained and signed by the patient or by the patient's representative and a non-opposition letter signed by the caregiver when available
6. Able to participate to cognitive and psychiatric assessments

Exclusion Criteria:

1. Non degenerative dementias : e;g. vascular, alcohol-related, toxic, infectious, posttraumatic.
2. Dementia of unknown etiology
3. Dementia in Down syndrome
4. Patients in Nursing Home or other care facility
5. Total dependency for dressing and/or bathing at the time of inclusion

6. Patient with a severe or life-threatening disease

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Study Plan

How is the study designed?

Design Details

• Observational Models: Cohort
• Time Perspectives: Prospective

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort

Intervention / Treatment

Early onset dementias (EOD); Prospective multicenter cohort of EOD patients with a three-year follow-up in tertiary Reference Memory centers

Other: Neuropsychological scales; Basic Activity of Daily Living (BADL) and Instrumental Activities of Daily Living (IADL), Neuropsychiatric Inventory (NPI), Cornell Scale for Depression in Dementia (CSDD), Clinical Dementia Rating Scale (CDR) and defining dementia criteria. Also as part of this study, an MRI examination at baseline and at 18 months follow-up will be performed in the Bordeaux center

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
BADL dependency in both bathing and dressing using the BADL scale from Katz (Katz et al., 1970) at inclusion	Katz scale ranks the adequacy of performance in six basic functions including bathing, dressing, toileting, transferring,continence, and feeding.. It has been shown that bathing and dressing are the first ADL to be lost, also defined by Katz et al. as the thresholds for disability (Katz et al., 1970 ; Edjolo et al., 2016). Each item is graded according to the level of dependence as follows: performs independently (0 point), performs with assistance (1 point), and unable to perform (2 point). A total score of 0 indicates "full function" and 12 indicates "severe functional impairment". To evaluate the primary outcome, only the score at the two first items (bathing and dressing, scoring from 0 to 4) will be taken into account for the analysis: complete dependency is present if the score at the two first items is 4 and absent if <4.	at inclusion
BADL dependency in both bathing and dressing using the BADL scale from Katz (Katz et al., 1970) at 6 months	Katz scale ranks the adequacy of performance in six basic functions including bathing, dressing, toileting, transferring,continence, and feeding.. It has been shown that bathing and dressing are the first ADL to be lost, also defined by Katz et al. as the thresholds for disability (Katz et al., 1970 ; Edjolo et al., 2016). Each item is graded according to the level of dependence as follows: performs independently (0 point), performs with assistance (1 point), and unable to perform (2 point). A total score of 0 indicates "full function" and 12 indicates "severe functional impairment". To evaluate the primary outcome, only the score at the two first items (bathing and dressing, scoring from 0 to 4) will be taken into account for the analysis: complete dependency is present if the score at the two first items is 4 and absent if <4.	6 months after inclusion
BADL dependency in both bathing and dressing at 12 months	Katz scale ranks the adequacy of performance in six basic functions including bathing, dressing, toileting, transferring,continence, and feeding.. It has been shown that bathing and dressing are the first ADL to be lost, also defined by Katz et al. as the thresholds for disability (Katz et al., 1970 ; Edjolo et al., 2016). Each item is graded according to the level of dependence as follows: performs independently (0 point), performs with assistance (1 point), and unable to perform (2 point). A total score of 0 indicates "full function" and 12 indicates "severe functional impairment". To evaluate the primary outcome, only the score at the two first items (bathing and dressing, scoring from 0 to 4) will be taken into account for the analysis: complete dependency is present if the score at the two first items is 4 and absent if <4.	12 months after inclusion
BADL dependency in both bathing and dressing at 18 months	Katz scale ranks the adequacy of performance in six basic functions including bathing, dressing, toileting, transferring,continence, and feeding.. It has been shown that bathing and dressing are the first ADL to be lost, also defined by Katz et al. as the thresholds for disability (Katz et al., 1970 ; Edjolo et al., 2016). Each item is graded according to the level of dependence as follows: performs independently (0 point), performs with assistance (1 point), and unable to perform (2 point). A total score of 0 indicates "full function" and 12 indicates "severe functional impairment". To evaluate the primary outcome, only the score at the two first items (bathing and dressing, scoring from 0 to 4) will be taken into account for the analysis: complete dependency is present if the score at the two first items is 4 and absent if <4.	18 months after inclusion
BADL dependency in both bathing and dressing at 24 months	Katz scale ranks the adequacy of performance in six basic functions including bathing, dressing, toileting, transferring,continence, and feeding.. It has been shown that bathing and dressing are the first ADL to be lost, also defined by Katz et al. as the thresholds for disability (Katz et al., 1970 ; Edjolo et al., 2016). Each item is graded according to the level of dependence as follows: performs independently (0 point), performs with assistance (1 point), and unable to perform (2 point). A total score of 0 indicates "full function" and 12 indicates "severe functional impairment". To evaluate the primary outcome, only the score at the two first items (bathing and dressing, scoring from 0 to 4) will be taken into account for the analysis: complete dependency is present if the score at the two first items is 4 and absent if <4.	24 months after inclusion
BADL dependency in both bathing and dressing at 30 months	Katz scale ranks the adequacy of performance in six basic functions including bathing, dressing, toileting, transferring,continence, and feeding.. It has been shown that bathing and dressing are the first ADL to be lost, also defined by Katz et al. as the thresholds for disability (Katz et al., 1970 ; Edjolo et al., 2016). Each item is graded according to the level of dependence as follows: performs independently (0 point), performs with assistance (1 point), and unable to perform (2 point). A total score of 0 indicates "full function" and 12 indicates "severe functional impairment". To evaluate the primary outcome, only the score at the two first items (bathing and dressing, scoring from 0 to 4) will be taken into account for the analysis: complete dependency is present if the score at the two first items is 4 and absent if <4.	30 months after inclusion
BADL dependency in both bathing and dressing at 36 months	Katz scale ranks the adequacy of performance in six basic functions including bathing, dressing, toileting, transferring,continence, and feeding.. It has been shown that bathing and dressing are the first ADL to be lost, also defined by Katz et al. as the thresholds for disability (Katz et al., 1970 ; Edjolo et al., 2016). Each item is graded according to the level of dependence as follows: performs independently (0 point), performs with assistance (1 point), and unable to perform (2 point). A total score of 0 indicates "full function" and 12 indicates "severe functional impairment". To evaluate the primary outcome, only the score at the two first items (bathing and dressing, scoring from 0 to 4) will be taken into account for the analysis: complete dependency is present if the score at the two first items is 4 and absent if <4.	36 months after inclusion

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Behavioral and Psychological Symptoms of Dementia (BPSD) as measured by Neuropsychiatric Inventory (NPI) at the inclusion	The NPI is a caregiver administered scale which assesses 12 domains of BPSD in dementia (Cummings et al., 1994). The NPI has been validated in French (Robert et al., 1998) . It is a questionnaire composed of a screening question and seven to nine items for each of 12 domains : delusions, hallucinations, agitation/aggression, depression/dysphoria, anxiety, elation/euphoria, apathy/indifference, disinhibition, irritability/lability, aberrant motor behavior, sleep, appetite and eating disorders. A knowledgeable informant (usually a caregiver) indicates via the screening question whether the patient has experienced any domain-related symptom in the past month. If the screening question is validated, the caregiver is then asked whether each item within the domain has occurred in the past month and provides a global rating of frequency, severity and caregiver distress for all items in the domain at the same time (not item by item). Score ranges from 0 to 144 .	at the inclusion
BPSD as measured by NPI at 12 months after inclusion	The NPI is a caregiver administered scale which assesses 12 domains of BPSD in dementia (Cummings et al., 1994). The NPI has been validated in French (Robert et al., 1998) . It is a questionnaire composed of a screening question and seven to nine items for each of 12 domains : delusions, hallucinations, agitation/aggression, depression/dysphoria, anxiety, elation/euphoria, apathy/indifference, disinhibition, irritability/lability, aberrant motor behavior, sleep, appetite and eating disorders. A knowledgeable informant (usually a caregiver) indicates via the screening question whether the patient has experienced any domain-related symptom in the past month. If the screening question is validated, the caregiver is then asked whether each item within the domain has occurred in the past month and provides a global rating of frequency, severity and caregiver distress for all items in the domain at the same time (not item by item). Score ranges from 0 to 144 .	at 12 months after inclusion
BPSD as measured by NPI at 24 months after inclusion	The NPI is a caregiver administered scale which assesses 12 domains of BPSD in dementia (Cummings et al., 1994). The NPI has been validated in French (Robert et al., 1998) . It is a questionnaire composed of a screening question and seven to nine items for each of 12 domains : delusions, hallucinations, agitation/aggression, depression/dysphoria, anxiety, elation/euphoria, apathy/indifference, disinhibition, irritability/lability, aberrant motor behavior, sleep, appetite and eating disorders. A knowledgeable informant (usually a caregiver) indicates via the screening question whether the patient has experienced any domain-related symptom in the past month. If the screening question is validated, the caregiver is then asked whether each item within the domain has occurred in the past month and provides a global rating of frequency, severity and caregiver distress for all items in the domain at the same time (not item by item). Score ranges from 0 to 144 .	at 24 months after inclusion
BPSD as measured by NPI at 36 months after inclusion	The NPI is a caregiver administered scale which assesses 12 domains of BPSD in dementia (Cummings et al., 1994). The NPI has been validated in French (Robert et al., 1998) . It is a questionnaire composed of a screening question and seven to nine items for each of 12 domains : delusions, hallucinations, agitation/aggression, depression/dysphoria, anxiety, elation/euphoria, apathy/indifference, disinhibition, irritability/lability, aberrant motor behavior, sleep, appetite and eating disorders. A knowledgeable informant (usually a caregiver) indicates via the screening question whether the patient has experienced any domain-related symptom in the past month. If the screening question is validated, the caregiver is then asked whether each item within the domain has occurred in the past month and provides a global rating of frequency, severity and caregiver distress for all items in the domain at the same time (not item by item). Score ranges from 0 to 144 .	at 36 months after inclusion
Depression as measured by the Cornell Scale for Depression in Dementia at inclusion	the Cornell Scale for Depression in Dementia is a 19-item clinician-administered instrument that uses information from interviews with both the patient and an informant, specifically designed for the rating of symptoms of depression in demented patients (Alexopoulos et al., 1988). Items were constructed so they can be rated primarily on the basis of observation, and not self report by the patient. The severity of each item is described as absent, mild or intermittent, and severe. The informant is interviewed first. Time of administration is about 30 minutes. The CSDD has been validated in French (Camus et al., 1995). Mean scores are given in the original paper, as a function of MMSE for no depression, episodic minor depressive disorder, probable major depressive disorder and definite major depressive disorder.	at inclusion
Depression as measured by the Cornell Scale for Depression in Dementia at 12 months after inclusion	the Cornell Scale for Depression in Dementia is a 19-item clinician-administered instrument that uses information from interviews with both the patient and an informant, specifically designed for the rating of symptoms of depression in demented patients (Alexopoulos et al., 1988). Items were constructed so they can be rated primarily on the basis of observation, and not self report by the patient. The severity of each item is described as absent, mild or intermittent, and severe. The informant is interviewed first. Time of administration is about 30 minutes. The CSDD has been validated in French (Camus et al., 1995). Mean scores are given in the original paper, as a function of MMSE for no depression, episodic minor depressive disorder, probable major depressive disorder and definite major depressive disorder.	at 12 months after inclusion
Depression as measured by the Cornell Scale for Depression in Dementia at 24 months after inclusion	the Cornell Scale for Depression in Dementia is a 19-item clinician-administered instrument that uses information from interviews with both the patient and an informant, specifically designed for the rating of symptoms of depression in demented patients (Alexopoulos et al., 1988). Items were constructed so they can be rated primarily on the basis of observation, and not self report by the patient. The severity of each item is described as absent, mild or intermittent, and severe. The informant is interviewed first. Time of administration is about 30 minutes. The CSDD has been validated in French (Camus et al., 1995). Mean scores are given in the original paper, as a function of MMSE for no depression, episodic minor depressive disorder, probable major depressive disorder and definite major depressive disorder.	at 24 months after inclusion
Depression as measured by the Cornell Scale for Depression in Dementia at 36 months after inclusion	the Cornell Scale for Depression in Dementia is a 19-item clinician-administered instrument that uses information from interviews with both the patient and an informant, specifically designed for the rating of symptoms of depression in demented patients (Alexopoulos et al., 1988). Items were constructed so they can be rated primarily on the basis of observation, and not self report by the patient. The severity of each item is described as absent, mild or intermittent, and severe. The informant is interviewed first. Time of administration is about 30 minutes. The CSDD has been validated in French (Camus et al., 1995). Mean scores are given in the original paper, as a function of MMSE for no depression, episodic minor depressive disorder, probable major depressive disorder and definite major depressive disorder.	at 36 months after inclusion
Institutionalization	date of institutionalization	at 36 months after inclusion
Death	date of death	at 36 months after inclusion
BPSD other than depression at inclusion	Neuropsychiatric Inventory with an informant if any (de Medeiros et al., 2010). This scale will be administered by an experienced clinician or psychologist. Both the subscore of each of the 12 domains and the total score will be analysed	at inclusion
BPSD other than depression at 12 months after inclusion	Neuropsychiatric Inventory with an informant if any (de Medeiros et al., 2010). This scale will be administered by an experienced clinician or psychologist. Both the subscore of each of the 12 domains and the total score will be analysed	at 12 months after inclusion
BPSD other than depression at 24 months after inclusion	Neuropsychiatric Inventory with an informant if any (de Medeiros et al., 2010). This scale will be administered by an experienced clinician or psychologist. Both the subscore of each of the 12 domains and the total score will be analysed	at 24 months after inclusion
BPSD other than depression at 36 months after inclusion	Neuropsychiatric Inventory with an informant if any (de Medeiros et al., 2010). This scale will be administered by an experienced clinician or psychologist. Both the subscore of each of the 12 domains and the total score will be analysed	at 36 months after inclusion

Collaborators and Investigators

• Sponsor: University Hospital, Bordeaux
• Investigators: Principal Investigator: Sophie AURIACOMBE, M.D, University Hospital, Bordeaux

Study record dates

Study Major Dates

• Study Start (Actual): May 20, 2020
• Primary Completion (Estimated): May 20, 2026
• Study Completion (Estimated): May 20, 2026

Study Registration Dates

• First Submitted: January 31, 2020
• First Submitted That Met QC Criteria: January 31, 2020
• First Posted (Actual): February 5, 2020

Study Record Updates

• Last Update Posted (Actual): October 6, 2023
• Last Update Submitted That Met QC Criteria: October 5, 2023
• Last Verified: October 1, 2023

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Mental Disorders; Brain Diseases; Central Nervous System Diseases; Nervous System Diseases; Neurocognitive Disorders; Dementia
• Other Study ID Numbers: CHUBX 2018/68

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No