Clinical Trial Details
— Status: Active, not recruiting
Administrative data
NCT number |
NCT03679221 |
Other study ID # |
2019-1501 |
Secondary ID |
|
Status |
Active, not recruiting |
Phase |
|
First received |
|
Last updated |
|
Start date |
July 24, 2019 |
Est. completion date |
December 1, 2025 |
Study information
Verified date |
February 2024 |
Source |
Jewish General Hospital |
Contact |
n/a |
Is FDA regulated |
No |
Health authority |
|
Study type |
Observational
|
Clinical Trial Summary
The overall objective of the proposal is to examine the association between depression and
the newly reported "motoric cognitive risk" (MCR) syndrome, which is a pre-dementia syndrome
combining subjective cognitive complaint (i.e.; memory complaint) with objective slow gait
speed, in the Canadian population, with the baseline assessment of the Canadian Longitudinal
Study on Aging (CLSA).
The Canadian and global population are continuously aging. Moreover, the number of
individuals affected by dementia is on the rise. One good predictor of dementia is Motoric
Cognitive Risk (MCR) syndrome. MCR syndrome is a highly prevalent, newly defined syndrome
that combines slow gait and subjective cognitive complaint. Depression is also highly
prevalent in the older population and can affect both cognition and gait. Thus, an overlap
between MCR and depression is possible. Yet few studies have examined the association between
MCR and depression, thus emphasizing the importance of further investigating this
association. This project encompasses determining the association of MCR syndrome with
depression in the Canadian context as a step to better understand MCR syndrome in Canada.
Description:
Motoric Cognitive Risk syndrome (MCR) is a new clinical syndrome associating subjective
cognitive complaint and objective slow gait speed with a high prevalence calculated around
10% in population aged 60 and above. MCR syndrome predicts mild and major neurocognitive
disorders. MCR syndrome does not rely on a complex and time-consuming assessment, making it
applicable to the aging population. Thus, MCR syndrome seems to be a good syndrome to
identify individuals at risk of mild and major neurocognitive disorders in any type of
healthcare setting.
Slow gait speed and cognitive complaint are unspecific symptoms that can apply to a wide
variety of morbidities (i.e., having a disease or a symptom of disease), thus causing overlap
with other syndromes which may influence the predictive value of MCR syndrome. One example of
the same seen in previous literature is the overlap between MCR syndrome and Mild Cognitive
Impairment (MCI) which is, a pre-dementia syndrome similar to MCR syndrome. Patients
diagnosed with MCR syndrome can also be diagnosed with MCI, however, this is not always the
case. It has been suggested that patients cumulating both syndromes could be more at risk of
mild and major neurocognitive disorders. Similarly, anxiety, depressive symptomatology and/or
clinical depression (ADSCD) may be associated with slow gait speed and cognitive complaint.
Prevalence of ADSCD like MCR syndrome is high and estimated around 9%, with some age
dependent variation: younger adults have a higher prevalence compared to older adults. Due to
the high prevalence of both MCR syndrome and ADSCD, and in conjunction that subjective
cognitive complaint (for MCR syndrome definition) has previously been extracted from an item
of depressive questionnaires like Center for Epidemiologic Studies Depression scale (CESD) or
Geriatric Depression Scale (GDS), there is a high probability of overlap between MCR syndrome
and depression. As ADSCD is not a pre-dementia stage, an overlap between ADSCD and MCR
syndrome can conversely to MCI syndrome result in a decreased risk for mild and major
neurocognitive disorders.
Few studies have examined the association between ADSCD and MCR syndrome and reported
diverging results. They found both significant and not significant associations between MCR
syndrome and ADSCD. These mixed results may be explained by the definition used for ADSCD.
For instance, studies have used depressive questionnaires or antidepressant use. Moreover,
this divergence could also be related to the nature of the symptomology (e.g., anxiety or
mood disorders), as well as age. Thus, it is important to examine the association between
ADSCD and MCR syndrome taking in consideration these parameters.
The investigator has the opportunity with the baseline assessment of a large population-based
prospective and observational study in Canada, known as the Canadian Longitudinal Study on
Aging (CLSA) to better understand the parameters influencing the association between ADSCD
and MCR syndrome.