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Recruiting NCT03402919

Comprehensive Assessment of Neurodegeneration and Dementia

— Observational Dementia Mild Cognitive Impairment (MCI) Subjective Cognitive Impairment Parkinson's Disease (PD)

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
This is an observational study: the protocol does not assign a study treatment.
Who it may be relevant to
Registry conditions: Dementia, Mild Cognitive Impairment (MCI), Subjective Cognitive Impairment, Parkinson's Disease (PD). Basic parameters: 50 years — 90 years · All.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
Canada
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

Unsure about the terms? Read our patient guide →

Official title

The Comprehensive Assessment of Neurodegeneration and Dementia Study

Overview

This is a longitudinal observational study recruiting individuals between the ages of 50 and 90 with different types of dementia as well as a comparison group without cognitive deficits. Participants are/will be recruited at sites across Canada and will undergo assessments, neuroimaging, and biological sample collection.

Detailed description

This is a longitudinal observational study that started in Phase I with the recruitment of 1173 participants between the ages of 50 and 90 years with Subjective Cognitive Impairment, Mild Cognitive Impairment, Mild Cognitive Impairment with subcortical vascular lesions, Alzheimer's Disease, Mixed dementia, Lewy Body Dementia, Parkinson's Disease Dementia, Parkinson's Disease with Mild Cognitive Impairment and Frontotemporal Dementia as well as healthy elderly subjects without cognitive complaints or deficits. These participants were enrolled in 30 different centres across Canada.

All subjects involved in the study underwent rigorous evaluations at baseline, including clinical assessment, neuropsychological assessment, genomics and neuroimaging. Biological samples from blood, saliva, urine, fecal matter, buccal cells and cerebrospinal fluid were collected, stored, and analyzed.

Longitudinal follow-up determining if there has been any change in their diagnosis was carried out annually and longitudinal re-evaluation was carried out at two times: Time 2 and Time 3.

In Time 3, 400 participants across the non-dementia cohorts (Cognitively Unimpaired, Subjective Cognitive Impairment, Mild Cognitive Impairment, Mild Cognitive Impairment with a Vascular Component, Parkinson's Disease with no Cognitive Impairment, Parkinson's Disease with Mild Cognitive Impairment) with up to 12 years of education will be recruited.

Primary outcome measures

  • Montreal Cognitive Assessment (MoCA) score [Time frame: 8 years]

Eligibility criteria

Inclusion criteria

  • Has subjective or objective cognitive impairment
  • Written informed consent must be obtained and documented (from the patient or, where jurisdictions allow it, from a caregiver/family member)
  • Sufficient proficiency in English or French to undertake self report and neuropsychological testing
  • Geographic accessibility to the study site
  • Must have a study partner who can participate as required in the protocol (provide corroborative information)
  • Up to 12 years of education
  • Fits into one of the following groups: Cognitively Unimpaired, Subjective Cognitive Impairment, Mild Cognitive Impairment, Vascular Mild Cognitive Impairment, Parkinson's Disease, Parkinson's Disease with Mild Cognitive Impairment

Exclusion criteria

  • The presence of other significant known chronic brain disease such as: moderate to severe chronic static leukoencephalopathy (including previous traumatic injury), multiple sclerosis, a serious developmental handicap, malignant tumors, Parkinson's disease (other than for the Parkinson's cohort), and other rarer brain illnesses
  • Ongoing alcohol or drug abuse which in the opinion of the investigator may interfere with the subject's ability to comply with the study procedures
  • Symptomatic stroke within the previous year
  • Unable to undergo MRI scan due to medical contraindications or inability to tolerate the procedure

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: Yes

Study design

Observational model
Cohort

Study locations

Canada · 19 centers
  • University of Calgary — Calgary
  • University of Alberta Hospital — Edmonton
  • Djavad Mowafaghian Centre for Brain Health — Vancouver
  • Island Health — Victoria
  • Veteran's Memorial Building — Halifax
  • Hamilton General Hospital — Hamilton
  • St. Joseph's Health Care London — London
  • Gait and Brain Lab — London
  • … and 11 more centers

Publications

  • Montero-Odasso M, Sarquis-Adamson Y, Kamkar N, Pieruccini-Faria F, Bray N, Cullen S, Mahon J, Titus J, Camicioli R, Borrie MJ, Bherer L, Speechley M. Dual-task gait speed assessments with an electronic walkway and a stopwatch in older adults. A reliability study. Exp Gerontol. 2020 Dec;142:111102. doi: 10.1016/j.exger.2020.111102. Epub 2020 Oct 2. PMID 33017671

Identifiers

NCT: NCT03402919 · CCNA 2015

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗