- 99studies, of 27,380 in the library
- 99peer-reviewed
- 1977–2026years published
- 62median usefulness score out of 100
These counts and lists are worked out from the library itself each time the page loads. A score rates how much weight a study can bear — its design, journal, evidence and recency — not whether its result is good news.
How the records spell this journal (2 spellings)
- Lancet (London, England) — 84 studies
- The Lancet — 15 studies
The 20 highest-scoring
- Study of mirtazapine for agitated behaviours in dementia (SYMBAD): a randomised, double-blind, placebo-controlled trial
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A 2 year multidomain intervention of diet, exercise, cognitive training, and vascular risk monitoring versus control to prevent cognitive decline in at-risk elderly people (FINGER): a randomised controlled trial
In this two-year randomised trial in at-risk older people, a combined programme of diet, exercise, cognitive training and vascular risk monitoring produced a small, statistically significant advantage over control in the yearly change of a cognitive test-battery score (difference 0·022 per year; 95% CI 0·002–0·042). The authors say this "suggest[s]" such a programme "could improve or maintain cognitive functioning"; the record reports no dementia outcomes. Adverse events were more common with the intervention (7% vs 1%), mostly musculoskeletal pain.
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Hearing intervention versus health education control to reduce cognitive decline in older adults with hearing loss in the USA (ACHIEVE): a multicentre, randomised controlled trial
In this US randomised trial of older adults with hearing loss, a hearing intervention did not change 3-year cognitive decline compared with a health education control: both groups declined by about 0·2 SD (difference 0·002, p=0·96), and no significant study-related adverse events were reported in either group. A prespecified sensitivity analysis found the effect differed between the trial's two cohorts (ARIC and de novo; p interaction =0·010), which the authors say suggests a hearing intervention "might" reduce cognitive change in older adults at increased risk of decline. That is a secondary signal, not a shown benefit.
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Efficacy and safety of oral semaglutide 14 mg (flexible dose) in early-stage symptomatic Alzheimer's disease (EVOKE and EVOKE+): two phase 3, randomised, placebo-controlled trials
In two Phase 3 trials of 3,808 participants, oral semaglutide showed no significant difference from placebo in clinical decline on the main measure, and Novo Nordisk ended its Alzheimer's program for the drug after this result. Some biomarker reductions did not translate into any detectable slowing of cognitive or functional decline.
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Prevention of dementia in randomised double-blind placebo-controlled Systolic Hypertension in Europe (Syst-Eur) trial
In older people with isolated systolic hypertension, antihypertensive drug treatment was associated with about half the incidence of dementia compared with placebo. This suggests that controlling high blood pressure may help prevent dementia, but the trial was not designed primarily to test dementia prevention and the result was of borderline significance.
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Epidemiology of Alzheimer's disease and other forms of dementia in China, 1990-2010: a systematic review and analysis
This review concluded that earlier estimates may have underestimated the burden of dementia in China. It is about measuring how common dementia is, not about treating, curing or preventing it.
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Global prevalence of dementia: a Delphi consensus study
This consensus study estimates how many people have dementia worldwide and projects that the number will grow substantially by 2040, especially in developing countries. It provides no information about treating, curing or preventing Alzheimer's disease.
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Effectiveness of a 6-year multidomain vascular care intervention to prevent dementia (preDIVA): a cluster-randomised controlled trial
This randomised controlled trial found that a nurse-led, multidomain vascular care intervention did not reduce the incidence of all-cause dementia in an unselected population of older people. The intervention did not work for preventing dementia in this trial.
- Improving comfort around dying in elderly people: a cluster randomised controlled trial
- Efficacy and safety of tau-aggregation inhibitor therapy in patients with mild or moderate Alzheimer's disease: a randomised, controlled, double-blind, parallel-arm, phase 3 trial
- Long-term effectiveness of dopamine agonists and monoamine oxidase B inhibitors compared with levodopa as initial treatment for Parkinson's disease (PD MED): a large, open-label, pragmatic randomised trial
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Addition of a non-immersive virtual reality component to treadmill training to reduce fall risk in older adults (V-TIME): a randomised controlled trial
In older adults at high risk of falls, treadmill training combined with a non-immersive virtual reality component reduced fall rates more than treadmill training alone. This is about preventing falls, not about treating, curing, or preventing Alzheimer's disease.
- Robot-assisted laparoscopic prostatectomy versus open radical retropubic prostatectomy: early outcomes from a randomised controlled phase 3 study
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Efficacy of rivastigmine in dementia with Lewy bodies: a randomised, double-blind, placebo-controlled international study
In this 20-week Lancet trial, 120 people with dementia with Lewy bodies in the UK, Spain and Italy took rivastigmine (up to 12 mg a day) or a placebo; those on rivastigmine were less apathetic and anxious, had fewer delusions and hallucinations, and were faster and better on attention-heavy tests, and 63% of them (37 people) versus 30% on placebo (18) improved by at least 30% from baseline. The differences tended to disappear once the drug was stopped, and nausea, vomiting and loss of appetite were more common on rivastigmine, though the authors judged it safe and well tolerated when the dose was adjusted individually. The trial measured symptom relief during treatment only, so it does not show that rivastigmine slows, cures or prevents this form of dementia.
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A 2 year multidomain intervention of diet, exercise, cognitive training, and vascular risk monitoring versus control to prevent cognitive decline in at-risk elderly people (FINGER): a randomised controlled trial
The FINGER trial showed that a two-year multidomain program of diet, exercise, cognitive training, and vascular risk monitoring helped maintain or improve thinking skills in older adults at elevated dementia risk compared with general health advice. Adverse events, mostly musculoskeletal, were more common in the intervention group (7% vs 1%).
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6-month consequences of COVID-19 in patients discharged from hospital: a cohort study
This study followed patients discharged after COVID-19 and found some had ongoing problems with lung diffusion, anxiety or depression, fatigue, and kidney function. It does not address Alzheimer's disease treatment, cure or prevention.
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Hearing intervention versus health education control to reduce cognitive decline in older adults with hearing loss in the USA (ACHIEVE): a multicentre, randomised controlled trial
Across the whole group of 977 older adults with hearing loss, hearing treatment did not significantly slow cognitive decline over three years, but a planned higher-risk subgroup showed roughly 48% less decline with hearing treatment. Both the overall null result and the subgroup benefit are findings from the same randomized trial.
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Efficacy of galantamine in probable vascular dementia and Alzheimer's disease combined with cerebrovascular disease: a randomised trial
In this 6-month double-blind trial, 592 people with probable vascular dementia or Alzheimer's disease plus cerebrovascular disease were randomly given galantamine 24 mg a day (396) or placebo (196). On the ADAS-cog thinking test, the galantamine group improved by 1.7 points while the placebo group worsened by 1.0, a 2.7-point difference. The authors report benefits across "all key areas of cognitive and non-cognitive abilities", but the copy of the abstract we hold is cut off before those other results, so only the thinking-test result can be checked here, and it describes symptoms over 6 months, not a cure or prevention.
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Multidomain lifestyle intervention for the prevention of cognitive decline in at-risk older adults in Latin America (LatAm-FINGERS): a single-blind, multicentre, randomised controlled trial
This trial in Latin America tested a multidomain lifestyle intervention in older adults at risk of cognitive decline and reported on how well the program was delivered and how many participants stayed in it. It supports the feasibility of such programs in populations historically under-represented in dementia research, but the text does not report whether the intervention reduced cognitive decline.
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Dementia incidence and mortality in middle-income countries, and associations with indicators of cognitive reserve: a 10/66 Dementia Research Group population-based cohort study
Following 8,137 older adults in Cuba, the Dominican Republic, Venezuela, Peru, Mexico and China for 3–5 years, this cohort found new dementia cases at 18·2–30·4 per 1000 person-years using 10/66 criteria, 1·4–2·7 times the DSM-IV rate. People who already had dementia at the start had a 1·56–5·69 times higher risk of death. The authors say their findings support the cognitive reserve idea: in these countries, as in high-income ones, education and literacy went with a lower chance of developing dementia. This was an observational study and tested no treatment or prevention.
See all 99 studies, with filters →
Newest additions
- Efficacy and safety of oral semaglutide 14 mg (flexible dose) in early-stage symptomatic Alzheimer's disease (evoke and evoke+): two phase 3, randomised, placebo-controlled trials
- Burden of 375 diseases and injuries, risk-attributable burden of 88 risk factors, and healthy life expectancy in 204 countries and territories, including 660 subnational locations, 1990–2023: a systematic analysis for the Global Burden of Disease Study 2023
- New landscape of the diagnosis of Alzheimer's disease
- Passive anti-amyloid β immunotherapy in Alzheimer's disease-opportunities and challenges
- Dementia prevention, intervention, and care: 2024 report of the Lancet standing Commission
- Medical, surgical, and physical treatments for Parkinson's disease
- The epidemiology of Parkinson's disease
- Multiple sclerosis
- 6-month consequences of COVID-19 in patients discharged from hospital: a cohort study
- Parkinson's disease
From across this list
6 of the 94 studies in this list, picked by a fixed rule (a hash of each study's address), not by score or date. The same 6 appear here every time.
- Prevalence and severity of cognitive impairment with and without dementia in an elderly population
- Relation between age-related decline in intelligence and cerebral white-matter hyperintensities in healthy octogenarians: a longitudinal study
- Pathological correlates of late-onset dementia in a multicentre, community-based population in England and Wales. Neuropathology Group of the Medical Research Council Cognitive Function and Ageing Study (MRC CFAS)
- Global, regional, and national incidence, prevalence, and years lived with disability for 328 diseases and injuries for 195 countries, 1990–2016: a systematic analysis for the Global Burden of Disease Study 2016
- Down's syndrome
- Prevalence of dementia in Latin America, India, and China: a population-based cross-sectional survey
By review status
- Peer-reviewed — 99
Other journals
- JAMA Psychiatry34
- JAMA Internal Medicine47
- JAMA Neurology325
- Alzheimer's & Dementia1,310
- The BMJ78
- The Journal of Nutrition, Health & Aging46
- The New England Journal of Medicine81
- JAMA202
- The Lancet Neurology226
- Diabetes Care25
- Molecular Psychiatry107
- Brain428
- JAMA Network Open189
- Alzheimer's Research & Therapy373