METformin and FINGER Intervention to Prevent Cognitive Impairment and Disability in Older Adults at Risk for Dementia
Multimodal METformin and FINGER Lifestyle Intervention to Prevent Cognitive Impairment and Disability in Older Adults at Risk for Dementia: a Phase IIb Multi-national Randomised, Controlled Trial
Imperial College London
600 participants
Jan 25, 2023
INTERVENTIONAL
Conditions
Summary
Dementia is the main cause of disability in older adults, currently affecting about 50 million people world-wide with this number estimated to triple in the next 30 years. In MET-FINGER, we aim to understand whether the FINGER 2.0 multidomain intervention, combining healthy lifestyle changes and a drug for diabetes (metformin), may help reduce the risk of dementia and improve health and independence among older adults. The study primary objective is to test the effect of the intervention, compared to healthy lifestyle advice, on the change in cognition, measured as a composite score including 14 of neuropsychological/cognitive tests. The secondary objective is to test the intervention effect on change in individual cognitive domains, functioning level, and risk factors for dementia (e.g., lifestyle, medical, and psychosocial). To this aim, a range of personal/health-related data and blood samples, will be collected. Potential interactions between metformin and lifestyle changes; potential disease-modifying effects; and feasibility of the metformin + lifestyle combination will be explored. 600 older people with risk factors for dementia, but without dementia/substantial cognitive impairment, will be recruited in the United Kingdom, Finland, and Sweden (at least 50% with higher genetic risk of Alzheimer's Disease/dementia based on the Apolipoprotein E (APOE) gene). Participants will be randomly assigned 1:1 to either a self-guided multidomain lifestyle intervention or to the FINGER 2.0 multidomain lifestyle-based intervention. Outcome assessors will be blinded to group allocation. Within the FINGER 2.0 intervention group, participants at increased risk of diabetes, will be randomly assigned 1:1:1 to either the metformin 2000mg/day, metformin 1000mg/day, or placebo group (double blinded). The intervention duration is 24 months. The lifestyle intervention includes four main components: physical exercise, diet, brain training and health checks. In the self-guided group, participants will create their own program, based on health advice and recommendations which will be provided during the study. In the FINGER 2.0 intervention group, participants will receive intensive lifestyle guidance, and participate in structured activities, which will be as tailored as possible on each person's daily habits and needs. Over the 2-year study period, all participants will attend four assessment visits: baseline, 6-, 12-, and 24-months.
Eligibility
Inclusion Criteria6
- Age 60-79 years.
- Cardiovascular Risk Factors, Aging and Dementia (CAIDE) Risk Score ≥6 points.
- Cognitive performance at the mean level or slightly lower than expected for age according to local population norms based on the Montreal Cognitive Assessment (MoCA) test and the Consortium to Establish a Registry for Alzheimer's Disease (CERAD) verbal learning test.
- Proficiency in the local language (English, Finnish or Swedish)
- No diagnosed diabetes or known contraindications to metformin treatment.
- Elevated adiposity (BMI≥25 kg/m2 OR waist circumference > 102 cm in men and > 88 cm in women) OR mildly impaired fasting glucose (6.1-6.9 mmol/l).
Exclusion Criteria12
- Dementia or substantial cognitive impairment (e.g., memory clinic referral needed as judged by the study physician).
- Current or past use of medications for Alzheimer's Disease or related diseases (e.g., cholinesterase inhibitors, memantine, aducanumab).
- Diminished decision-making capacity, not capable of consenting or completing study assessments, based on clinical judgement.
- Other known significant neurologic disease (including e.g., Parkinson's disease, Huntington's disease, normal pressure hydrocephalus, brain tumour, progressive, supranuclear palsy, seizure disorder, subdural hematoma, multiple sclerosis, or history of significant head trauma with persistent neurologic sequelae or known structural brain abnormalities).
- Any other condition affecting safe engagement in the intervention (e.g., malignant disease, major depression, symptomatic cardiovascular disease, revascularisation within the previous year).
- Severe loss of vision, hearing, or communicative ability; conditions preventing cooperation.
- Coincident participation in the active phase of another intervention trial.
- A member of the household already enrolled in the MET-FINGER trial
- Use of metformin for any indication.
- History of intolerance to metformin used for any indication.
- Diabetes diagnosed or suspected at baseline (e.g., HbA1c≥6.5%, fasting glucose ≥7 mmol/l, or 2HPG≥11.1 mmol/l).
- Metformin contraindications, e.g., history/presence of known renal or liver disease, congestive heart failure, alcohol abuse, calculated Glomerular Filtration Rate<60 ml/min.
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Interventions
Multimodal lifestyle-based precision prevention intervention, including: * Optimized FINGER multidomain lifestyle intervention (diet, physical activity, cognitive training and cardiovascular/metabolic risk monitoring and social interaction) * Metformin (Glucophage® XR)
Participants build their own healthy lifestyle program based on standard healthy lifestyle advice on diet, physical activity, cognitive training and cardiovascular/metabolic risk
Locations(3)
View Full Details on ClinicalTrials.gov
For the most up-to-date information, visit the official listing.
NCT05109169