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The purpose of The Brain Care Study is to investigate the prevalence of cognitive impairment in older adults with type 2 diabetes (T2D) and to evaluate the effectiveness of a multidomain intervention designed to prevent cognitive decline.
Full description
Type 2 diabetes (T2D) is a chronic condition associated with cognitive decline and an increased risk of Alzheimer's disease and vascular dementia. Cognitive impairment in individuals with T2D complicates disease management, often leading to poorer clinical outcomes. Although guidelines recommend cognitive screening for older adults with T2D, uncertainties remain regarding how to best identify high-risk individuals and adjust treatment strategies. While multidomain interventions have shown potential in delaying cognitive decline, further research is needed to develop feasible and effective strategies for at-risk populations.
The Brain Care Study consists of two parts: a prevalence study involving cognitive screening and a two-year randomized controlled trial (RCT) to assess a multidomain intervention targeting multiple risk factors, including pharmacological optimization, lifestyle changes, and social interaction.
The multidomain intervention focuses on optimizing medication, adjusting HbA1c targets, managing vascular risk factors, and addressing hearing impairment, depression, physical activity, and cognitive training. Additionally, the study will employ dialogue tools, text message reminders, and social interaction to enhance participants' health and adherence to the intervention.
The study hypothesizes that cognitive screening will be feasible and will not increase diabetes-related distress, while the intervention may reduce cognitive decline, improve health-related quality of life, decrease hospitalization rates, and minimize the need for home visits or relocation to nursing homes. Study endpoints include the prevalence of cognitive impairment, changes in cognitive function, hospitalization rates, and medication adherence, with the goal of providing evidence-based recommendations for future diabetes care guidelines.
Overall, the Brain Care Study aims to quantify the prevalence of cognitive decline in older individuals with type 2 diabetes and generate data to inform future guidelines for cognitive screening and interventions in this population.
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Inclusion and exclusion criteria
Inclusion Criteria for the Prevalence Study (Cognitive Screening):
Inclusion Criteria for the Randomized Controlled Trial (Multidomain Intervention):
Meets all the above inclusion criteria, and at least one of the following:
A diabetes-specific dementia score ≥ 7 (equivalent to a 40% increased risk of developing dementia within the next 10 years), and a SCIP or MoCA score ≥ 0.5 SD below the age- and education-adjusted norm
A SCIP or MoCA score ≥ 1 SD below the age- and education-adjusted norm
At least 2 out of 5 SCIP subtests with a score ≥ 1 SD below the age- and education-adjusted norm
Exclusion Criteria for the Prevalence Study (Cognitive Screening):
Diagnosis of dementia or prior referral to a dementia clinic
Diagnosis of psychiatric, neurological, or other disorders that, in the investigator's opinion, hinder participation in cognitive screening, preclude compliance with the study protocol, or affect the evaluation of results
Exclusion Criteria for the Randomized Controlled Trial (Multidomain Intervention):
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420 participants in 2 patient groups
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Central trial contact
Malin S. D. Nilsson, MD, PhD
Data sourced from clinicaltrials.gov
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