In male physicians aged 65 years or older, long-term use of a daily multivitamin did not provide cognitive benefits. 2 key findings →
Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Research
27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
69/100
Despite evidence of target engagement as indicated by an increase in serum insulin-like growth factor-1, the human growth hormone secretagogue MK-677 25 mg was ineffective at slowing the rate of progression of Alzheimer disease. 2 key findings →
Participants: 563 Evidence: high
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69/100
Ladostigil was safe and well tolerated but did not delay progression to dementia. 3 key findings →
Design: clinical trial Participants: 107 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
One-hundred and twenty participants, with a mean (range) of 1.2 (1-4) strokes, a mean (SD) of 66.5 (53.8) months since the most recent stroke, mean (SD) baseline age of 70 (8) years, mean (SD) baseline ADAS-Cog-Plus of 0.22 (0.81), and 74 (62%) male participants, were randomized to EX (34 participants), ENRICH (34 participants), or BAT (52 participants). 3 key findings →
Participants: 34 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Low dose ω3-PUFA supplementation, either alone or in combination with a multidomain lifestyle intervention comprising physical activity counselling, had no significant effects on muscle strength over 3 years in elderly people. 5 key findings →
Participants: 1,679 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
PurposeTelephone disclosure of genetic test results can improve access to services. 4 key findings →
Participants: 257 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Although antipsychotics were associated with greater harm than antidepressants and anticonvulsants in subgroups of persons with dementia, medications used in lieu of antipsychotics for treating neuropsychiatric symptoms in dementia, such as anticonvulsants and dextromethorphan-quinidine, were also associated with harm. 5 key findings →
Design: randomized controlled trial Participants: 209 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
EDIC participants had consistently higher brain age values compared with controls without diabetes, indicative of approximately 6 additional years of brain aging (EDIC participants: β, 6.16; SE, 0.71; control participants: β, 1.04; SE, 0.04; P Conclusions and relevance The findings of this study suggest an increase in brain aging among individuals with T1D without any early signs of AD-related neurodegeneration. 4 key findings →
Design: cohort study Participants: 416 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease sufferers have been found to have a lack of the enzyme responsible for converting choline into acetylcholine within the brain. 5 key findings →
Design: randomized controlled trial Participants: 265 Evidence: high
Full summary, score breakdown and related studies → Original source
Overall, we showed that SDB was associated with MTL atrophy in cognitively asymptomatic older adults engaged in the Alzheimer continuum, which may increase the risk of developing memory impairment over time. 3 key findings →
Design: randomized controlled trial Participants: 122 Evidence: high
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This cohort study of Medicare beneficiaries suggests that use of antihypertensive medications that stimulate type 2 and 4 angiotensin II receptors was associated with lower risk of ADRD compared with antihypertensive medications that inhibit these receptors. 5 key findings →
Design: randomized controlled trial Participants: 57 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Known risk factors for Alzheimer's disease (AD) are few and insufficient knowledge is available to recommend steps to reduce AD in our ageing populations. 1 key finding →
Design: randomized controlled trial Evidence: high
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The full analysis set included 159 patients (66 [41.5%] male; mean [SD] age, 75.6 [5.2] years) who received placebo or cilostazol at least once. 2 key findings →
Design: clinical trial Participants: 159 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
These findings suggest that subtle elevation of CHD risk may negatively affect memory functioning even in otherwise healthy, non-demented older women without a history of heart disease. 3 key findings →
Participants: 375 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
In this multinational, randomized, double-blind, placebo-controlled, parallel-group clinical trial, 788 patients with probable VaD who also satisfied strict centrally read MRI criteria were randomized to receive galantamine or placebo. 4 key findings →
Participants: 788 Evidence: high
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Late-life depression is associated with significant cognitive impairment. 4 key findings →
Design: meta-analysis Evidence: high
Full summary, score breakdown and related studies → Original source
Alzheimer's disease, a progressive neurodegenerative pathology, is characterized by the accumulation of Amyloid-β plaques in the brain. 5 key findings →
Design: systematic review Evidence: high
Full summary, score breakdown and related studies → Original source
In this FTIH study the Fc-inactivated anti-Aβ mAb GSK933776 engaged its target in plasma and CSF without causing brain ARIA-E/H in patients with mild AD or MCI. 1 key finding →
Design: open-label trial Participants: 18 Evidence: low
Full summary, score breakdown and related studies → Original source
The steady-state plasma PK results were closely aligned with the previous 2-week PK in the ALZ-801 phase 1b study in APOE4 carrier subjects with AD, as well as a phase 1 7-day PK study in heathy elderly volunteers. 5 key findings →
Design: longitudinal study Participants: 24 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Subtraction MRI has potential as a visual aid increasing the sensitivity of ARIA-E assessment. 3 key findings →
Participants: 75 Evidence: low
Full summary, score breakdown and related studies → Original source
Cognition averaged 0.8 MMSE (mini-mental state examination) points better (95% CI 0.5-1.2; p<0.0001) and functionality 1.0 BADLS points better (0.5-1.6; p<0.0001) with donepezil over the first 2 years. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
The results of this trial support the hypothesis that memantine treatment leads to functional improvement and reduces care dependence in severely demented patients. 5 key findings →
Participants: 166 Evidence: low
Full summary, score breakdown and related studies → Original source
The TRAILBLAZER-ALZ 6 study (NCT05738486) evaluated the effect of different donanemab dosing regimens on amyloid-related imaging abnormalities with edema/sulcal effusions (ARIA-E). 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Association of HT use and risk of AD may depend on timing of use. 4 key findings →
Design: randomized controlled trial Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
The dual primary efficacy endpoint was not reached. 3 key findings →
Evidence: high
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Where “Free full text” comes from
Free full text links and the Full text may need a subscription label come from Unpaywall, Europe PMC and OpenAlex records of free copies, checked 10 Oct 2026. A study with neither is unknown, not paywalled. Show only studies that are free to read
How the 0–100 score works — and why some entries are capped
This is alzhub's own score. It is not an official metric, not an impact factor, and no journal, publisher or ranking body endorses it. We built it so that a reader who is not a scientist can tell a landmark trial from a conference abstract without having to already know the difference. Every point comes from one of 20 components, all of them printed on the study itself, so you can disagree with our arithmetic rather than having to trust the total.
- Journal tier up to 10 pts
- Journal's citation record up to 4 pts
- Study design up to 12 pts
- Strength of evidence up to 5 pts
- Peer-review validation up to 10 pts
- How recent up to 5 pts
- Sample size up to 4 pts
- Effect reported up to 3 pts
- Studied in people up to 3 pts
- Randomised / blinded up to 2 pts
- Times cited up to 7 pts
- Citations per year up to 5 pts
- Impact for its field and year up to 6 pts
- Cited by studies here up to 6 pts
- Still being cited up to 4 pts
- Senior author's track record up to 4 pts
- Institution's track record up to 3 pts
- Multi-centre collaboration up to 3 pts
- Indexed in PubMed up to 2 pts
- Free to read up to 2 pts
Journals are placed in ordered tiers, never given a numeric impact factor — we could not verify current impact factors from a source we control, and an invented one would be worse than none. Tier 1 is the top-tier general journals (NEJM, The Lancet, JAMA, Nature, Science, Nature Medicine); tier 2 is the leading specialty journals; tier 3 is every other peer-reviewed journal. A separate part scores how much the journal's own papers are cited, which tells the tier-3 journals apart.
Two rules we don't bend. First, we never fill in a missing value: if a record does not state a sample size or a design, that component scores zero, and if we simply have no data for a part, such as a citation count, that part is left out and the study is scored on the parts we could check. The study card says which. Second, anything that is not a peer-reviewed article is capped at 16/100 and carries a warning chip — so a conference abstract or a company press release can never outrank a peer-reviewed paper, no matter how good it looks.
We rank a rigorous null result — a good trial showing that something does not work — above an early positive finding. Someone deciding whether to buy a supplement is served by that, and the rigour is already counted by the design and journal components.
The score is computed from the published data alone and is reproducible: the same file always yields the same numbers.
See the whole rubric drawn out → — four charts covering all 27,380 studies: how the scores are spread and where the cap bites, which of the 20 components the library is strong and weak on, which subjects rest on stronger evidence, and what kinds of study each subject is actually built from.
What this library is — and isn't
This is a large sample of the Alzheimer's literature, not an exhaustive index of it. It holds 27,380 records, built mostly from automated pulls of Europe PMC (60.6% of the library) and OpenAlex (18.6%), plus smaller pulls from PubMed, Crossref and medRxiv. If a study, a drug, or a finding isn't here, that is not evidence it doesn't exist in the literature — it may simply not have been pulled in yet.
1,032 records (3.8% of the library) are not peer-reviewed — 962 of those are preprints posted before any journal review, and the rest are conference abstracts, regulatory notices and reports. Every study card on this page states its status plainly, and the score above is capped for anything that isn't a peer-reviewed article.
See the full, machine-readable breakdown of this library's coverage →