Get help now — free helplines

You can call any of these for free. You do not need a diagnosis, an appointment, or a crisis to call — questions and plain exhaustion are reasons enough.

  • Alzheimer's Association 24/7 Helpline 800-272-3900 24 hours a day, 365 days a year Free, confidential support and information for people with dementia, caregivers, families and the public. Master's-level clinicians. Also Spanish.
  • 988 Suicide & Crisis Lifeline 988 24/7 Call or text 988, or chat at 988lifeline.org. For anyone in emotional distress or a mental-health crisis, including caregivers.
  • Alzheimer's Foundation of America (AFA) Helpline 866-232-8484 9:00 am - 9:00 pm ET, seven days a week Licensed social workers providing support, info and referrals. Also text message and web chat. Text: 646-586-5283

In a medical emergency, call 911. More numbers, and what each line does, on the help page.

Find studies

A note on reading research. One study is rarely the final word.

We try to note the size of a study, whether it was in humans or animals, and how early-stage the finding is. If a summary here doesn't make that clear, treat it with extra caution and check the original source.

Baseline assessments were conducted on 133 family caregivers of veterans living with dementia. 5 key findings →

Design: randomized controlled trial Participants: 67 Evidence: high

EVOKE (ClinicalTrials.gov NCT04777396) and EVOKE+ (NCT04777409) tested whether oral semaglutide, the GLP-1 diabetes/weight-loss drug, could slow early Alzheimer's disease progression in a combined 3,808 participants over up to 156 weeks. 4 key findings →

Design: phase-3-trial Participants: 3,808 Evidence: null result

These results, together with previous studies, suggest that memantine represents a new approach for the treatment of patients with moderate to severe AD. 3 key findings →

Participants: 203 Evidence: high

There were 813 participants in CREAD (mean [SD] age, 70.7 [8.2] years; 483 female and 330 male) and 806 in CREAD2 (mean [SD] age, 70.9 [7.7] years; 456 female and 350 male). 2 key findings →

Design: clinical trial Participants: 3,664 Evidence: high

The 172 total participants had a mean (SD) age of 75.7 (4.8) years, and 108 (62.8%) were women. 4 key findings →

Participants: 172 Evidence: high

Two Phase 3 Trials of Gantenerumab in Early Alzheimer's Disease

✓ Peer-reviewed alzhub usefulness score 81 out of 100. The New England journal of medicine 2023-11-01

Among persons with early Alzheimer's disease, the use of gantenerumab led to a lower amyloid plaque burden than placebo at 116 weeks but was not associated with slower clinical decline. 2 key findings →

Design: clinical trial Participants: 980 Evidence: low

BAN2401-G000-201 did not meet the 12-month primary endpoint. 5 key findings →

Design: clinical trial Participants: 18 Evidence: high

In a large placebo-controlled randomized trial, we found that pantoprazole is not associated with any adverse event when used for 3 years, with the possible exception of an increased risk of enteric infections. 5 key findings →

Design: randomized controlled trial Participants: 8,791 Evidence: high

Enrollment was undertaken between May 18, 2021, and September 8, 2023. 2 key findings →

Design: clinical trial Participants: 210 Evidence: high

The intervention did not improve global cognitive performance. 2 key findings →

Design: randomized controlled trial Participants: 819 Evidence: high

This systematic review suggests that CCT interventions could improve global cognitive function in patients with MCI. 5 key findings →

Design: systematic review Participants: 1,059 Evidence: high

Current pharmacologic therapies are for symptomatic AD patients, whereas nonpharmacologic training is administrable before symptom onset. 1 key finding →

Design: randomized controlled trial Participants: 125 Evidence: high

Providing multidomain lifestyle training through a web-platform is feasible and well-accepted, but the training should be challenging enough and adequately progress according to participants' capabilities to increase adherence. 2 key findings →

Design: randomized controlled trial Participants: 54 Evidence: high

Vascular management takes place every 3-6 months or otherwise as specified by study physicians. 5 key findings →

Design: randomized controlled trial Participants: 1,200 Evidence: high

The mean age of the 402 study residents was 86.7 years [range, 67-102 years]; 350 were white (87.1%) and 323 were female (80.3%), with DNH directives that by 6 months did not differ between arms (63% in both arms; adjusted odds ratio [AOR], 1.08; 95% CI, 0.69-1.69). 1 key finding →

Participants: 212 Evidence: high

Lecanemab treatment resulted in significant reduction in amyloid plaques and a slowing of clinical decline. 5 key findings →

Design: open-label trial Participants: 856 Evidence: high

FDA-approved anti-Aβ mabs have a role in slowing disease progression in patients with AD, at the cost of an increased probability of side effects. 3 key findings →

Design: systematic review Participants: 4,471 Evidence: high

Profiles of high risk for future dementia are well understood and are likely to concern mostly those in low-income and middle-income countries and people at greater disadvantage in high-income countries. 1 key finding →

Design: randomized controlled trial Participants: 2,400 Evidence: high

A 1-year, randomized, placebo-controlled study of donepezil in patients with mild to moderate AD

✓ Peer-reviewed alzhub usefulness score 81 out of 100. Neurology 2001-08-01

As the first 1-year, multinational, double-blinded, placebo-controlled study of a cholinesterase inhibitor in AD, these data support donepezil as a well tolerated and effective long-term treatment for patients with AD, with benefits over placebo on global assessment, cognition, and ADL. 3 key findings →

Participants: 286 Evidence: high

ACHIEVE-P sets the stage for the full-scale ACHIEVE trial (N = 850, recruitment beginning November 2017), the first randomized trial to determine efficacy of a best practices hearing (vs. successful aging) intervention on reducing cognitive decline in older adults with HL. 1 key finding →

Design: randomized controlled trial Participants: 850 Evidence: high

A total of 210 participants were enrolled and 82% completed 26 weeks of treatment. 5 key findings →

Design: clinical trial Participants: 210 Evidence: high

Blood pressure lowering and prevention of dementia: an individual patient data meta-analysis

✓ Peer-reviewed alzhub usefulness score 80 out of 100. European Heart Journal 2022-12-21

The first single-stage individual patient data meta-analysis from randomized double-blind placebo-controlled clinical trials provides evidence to support benefits of antihypertensive treatment in late-mid and later life to lower the risk of dementia. 5 key findings →

Design: meta-analysis Participants: 28,008 Evidence: high

In this study of adults with subjective memory impairment, a 6-month program of physical activity provided a modest improvement in cognition over an 18-month follow-up period. 3 key findings →

Design: randomized controlled trial Participants: 170 Evidence: high

From across this tag

10 of the 1,875 studies in this tag, picked by a fixed rule (a hash of each study's address), not by score or date; each page of this list shows a different 10. The same 10 appear here every time.

↑ Change the filters

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 28,180 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 28,180 records, built mostly from automated pulls of Europe PMC (61.7% of the library) and OpenAlex (18.1%), 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.

1,034 records (3.7% 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 →

Newest studies, as a dated timeline →    Atom feed