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.

If you are thinking about joining a trial

A listing here is a record that a study was registered. It is not a recommendation, and it does not mean the study is still recruiting or that anyone is eligible. Registry entries go stale.

Talk to the treating doctor first, then contact the study team listed on the official ClinicalTrials.gov record. The NIA's free referral line can help you look: 1-800-438-4380, weekdays, English and Spanish.

"Open to new participants" means the registry status is RECRUITING or NOT_YET_RECRUITING — 1,523 of the 7,816 records. That is what the sponsor last told the registry, which can be months out of date.
Location is by country. This pull of the registry records the countries a study runs in, not its individual sites, so we cannot filter by US state or city — and we are not going to guess one. To find the nearest site, open a trial's record below: the official page lists every location with its contact details.

Showing 2,401–2,425 of 7,816 matching trials · page 97 of 313, 25 per page.

Sorted by the date the registry record was last updated, newest first. This page never loads all 7,816 rows at once — use the CSV download if you want the whole file.

Registered Alzheimer's clinical trials. Every ID links to its official ClinicalTrials.gov record.
Trial Phase Status Enrolled Sponsor Last updated
Atlas of Retinal Imaging in Alzheimer's Study
NCT03862222
Retinal Imaging; Pupillometry; Contrast Sensitivity; Neuropsycholog...
Runs in: United States · 4 sites
NA
other
COMPLETED 165 University of Rhode Island
OTHER
2025-06-05
A Non-Interventional Pilot Study to Explore the Role of Gut Flora in Alzheimer's Disease
NCT04100889
No Intervention
Runs in: United States · 1 site
NA
other
WITHDRAWN 0 ProgenaBiome
OTHER
2025-06-05
A Pilot Study to Explore the Role of Gut Flora in Parkinson's Disease
NCT04148326
No Intervention
Runs in: United States · 1 site
NA
other
WITHDRAWN 0 ProgenaBiome
OTHER
2025-06-05
Study of the Indications for Amyloid Positon Emission Tomography (PET) Scans and Their Usefulness for Patients With Suspected Alzheimer's Disease (AD)
NCT06467981
Retrospective study
Runs in: France · 1 site
NA
other
COMPLETED 160 Central Hospital, Nancy, France
OTHER
2025-06-05
Establishment of the Chinese Preclinical Alzheimer's Disease Study With Multiple Neuroimaging
NCT06827678
No Intervention: Observational Cohort
Runs in: China · 1 site
NA
other
RECRUITING 3,000 Huashan Hospital
OTHER
2025-06-05
Feasibility of Using the Gatorade Sports Science Institute (GSSI) Labs App for Hydration Related Outcomes
NCT07005895
Hydration assessment via mobile app
Runs in: United States · 1 site
NA
other
RECRUITING 200 PepsiCo Global R&D
INDUSTRY
2025-06-05
Biograph Vision 600 Versus Biograph Vision.X PET/CT
NCT07006155
Images
Runs in: Switzerland · 1 site
NA
other
RECRUITING 40 Valentina Garibotto
OTHER
2025-06-05
Propranolol for Challenging Behaviors in Autism
NCT04047355
Propranolol
Runs in: United States · 1 site
PHASE2
other
COMPLETED 8 Rutgers, The State University of New Jersey
OTHER
2025-06-04
Time-Restricted Eating in Huntington's Disease: A Clinical Pilot Study
NCT06490367
Time-Restricted Eating Diet
Runs in: United States · 1 site
NA
other
COMPLETED 22 Oregon Health and Science University
OTHER
2025-06-04
Animation-based Storytelling Education in Relation to Moral Development in 8-12 Year Olds With Dementia-affected Caregivers
NCT07004348
Animation group will receive 4 sessions of animation as education m...
Runs in: United Kingdom · 1 site
NA
other
COMPLETED 60 Northumbria University
OTHER
2025-06-04
Rocky Mountain Alzheimer's Disease Center Longitudinal Biomarker and Clinical Phenotyping Study
NCT02612376
Runs in: United States · 1 site
NA
other
TERMINATED 800 University of Colorado, Denver
OTHER
2025-06-03
Effect of Exercise, Endocannabinoids and Ketones on Cerebral Metabolism in a Cognitive Disorders Population
NCT04322461
Betaquik MCT supplement
Runs in: Canada · 1 site
NA
other
COMPLETED 14 Université de Sherbrooke
OTHER
2025-06-03
BRain Energy Activation With Ketones to Prevent Alzheimer's Disease
NCT04466735
Active group; Placebo group
Runs in: Canada · 1 site
NA
other
COMPLETED 65 Université de Sherbrooke
OTHER
2025-06-03
Transmagnetic Stimulation Pilot in Primary Progressive Aphasia
NCT05860647
Intermittent theta burst stimulation
Runs in: United States · 1 site
NA
other
COMPLETED 3 HealthPartners Institute
OTHER
2025-06-03
INSIDE: Intervention in Nutritional Supplementation to Improve Cognitive Decline in Elderly.
NCT07000500
Nutritional Supplement; Placebo
Runs in: Portugal · 1 site
NA
other
ENROLLING_BY_INVITATION 50 Maria Paço
OTHER
2025-06-03
Bridging Generations: Educating Children on Dementia and Fall Prevention Through Animation
NCT07000370
Runs in: United Kingdom · 1 site
NA
other
COMPLETED 60 Northumbria University
OTHER
2025-06-02
Early Identification of Markers in Alzheimer's Families / ALFA
NCT02485730
Runs in: Spain · 1 site
NA
other
ACTIVE_NOT_RECRUITING 419 Barcelonabeta Brain Research Center, Pasqual Maragall Foundation
OTHER
2025-05-31
Brain Characterization of Amyloid Protein and Glucose Metabolism of ALFA Project Participants
NCT02685969
18F-Flutemetamol & 18F-FDG
Runs in: Spain · 1 site
NA
other
RECRUITING 570 Barcelonabeta Brain Research Center, Pasqual Maragall Foundation
OTHER
2025-05-31
Longitudinal Study for the Characterization of the Phases of Subjective Perception of Cognitive Decline and Mild Cognitive Impairment of Alzheimer's Disease.
NCT03851523
No intervention
Runs in: Spain · 1 site
NA
other
RECRUITING 400 Barcelonabeta Brain Research Center, Pasqual Maragall Foundation
OTHER
2025-05-31
Characterization of Cerebral Tau Aggregates With 18F-RO6958948 PET in the ALFA Population
NCT04482660
Positron emission tomography with 18F-RO6958948
Runs in: Spain · 1 site
NA
other
ENROLLING_BY_INVITATION 100 Barcelonabeta Brain Research Center, Pasqual Maragall Foundation
OTHER
2025-05-31
ALFAsleep: Exploring Cognitive and Biological Correlates of Sleep Quality and Their Potential Links With Alzheimer's Disease
NCT04932473
Runs in: Spain · 1 site
NA
other
COMPLETED 179 Barcelonabeta Brain Research Center, Pasqual Maragall Foundation
OTHER
2025-05-31
β-AARC: Cohort Study for the Identification of Blood-based Biomarkers in a Population With Subjective Cognitive Decline
NCT04935372
Observational
Runs in: Spain · 1 site
NA
other
ACTIVE_NOT_RECRUITING 200 Barcelonabeta Brain Research Center, Pasqual Maragall Foundation
OTHER
2025-05-31
Cognitive Stimulation Therapy - Effects on Cognitive and Functional Domains in Dementia - A Retrospective Data Review
NCT06932991
Cognitive Remediation
Runs in: United Kingdom · 1 site
NA
other
COMPLETED 160 Northumbria University
OTHER
2025-05-31
ADvanced ALzheimer Disease and Effects of Protologic and LAnguage Rehabilitation Tools in Nursing Home (ADALPA)
NCT06993285
Protologic and LAnguage adaptation rehabilitation
Runs in: France · 1 site
NA
other
NOT_YET_RECRUITING 9 Central Hospital, Nancy, France
OTHER
2025-05-31
Constructing and Evaluating the Effectiveness of a Community-based Older Adults Dementia Prevention Education Program
NCT06998836
Dementia prevention education; General Health Education Leaflet
Runs in: Taiwan · 1 site
NA
other
COMPLETED 142 Chang Gung University of Science and Technology
OTHER
2025-05-31

This table is wider than a phone screen — swipe it sideways to see the rest.

Where these trials come from

Registry
ClinicalTrials.gov, pulled through their public API (v2)
Trials in the file
7,816
Source file
trials.csv (3.8 MB, 7816 rows)
Basis
Measured These are registry records as submitted by each study's sponsor.

What could make this misleading

Sponsors enter their own data and do not always keep it current, so "recruiting" can be out of date by months or years. Enrollment figures may be targets rather than actual numbers; the downloaded file says which for each trial. Trials that were never registered do not appear at all, and the intervention class is this project's own grouping, not the registry's.

Always check the official record before acting on anything here. This is a summary, not medical advice.

Related evidence Treatments → What the drugs that finished their trials actually achieved.

From the research library

The highest-scoring studies we hold on this subject, each summarised in plain English. Scores are alzhub's usefulness score, not a verdict on the science.

Clinical trials

All 162 studies on Clinical trials →