Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 9, 2026, 4:00 PM EDT

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Showing 1–24 of 1,886 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Ischemic Stroke, Cognitive Impairment
Interventions
tDCS, sham tDCS, Cognitive Therapy
Device · Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 90 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Completed No phase listed Observational Accepts healthy volunteers

Brain Health & the Microbiome

NCT06039267
Conditions
Mild Cognitive Impairment, Mild Dementia, Alzheimer Disease 1
Interventions
Gut Microbiome Testing
Other
Lead sponsor
George Washington University
Other
Eligibility
50 Years to 90 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Conditions
Heart Failure
Interventions
Not listed
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
65 Years to 85 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Madison, Wisconsin
Completed No phase listed Observational Accepts healthy volunteers

Imaging Studies of Cognitive Impairment in Parkinson s Disease

NCT01862744
Conditions
Parkinson Disease, Dementia
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
40 Years and older
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Bethesda, Maryland
Recruiting Not applicable Interventional Accepts healthy volunteers

Individual Closed-Loop Neuromodulation Therapy for Alzheimer's Disease

NCT05904132
Conditions
Alzheimer Disease, Mild Cognitive Impairment
Interventions
tACS device
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
50 Years to 80 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Charlestown, Massachusetts
Completed Not applicable Interventional Results available

The "Light for the Brain" Study

NCT02677987
Conditions
Hematopoietic Stem Cell Transplantation, Cognitive Impairments, Sleep, Depression, Fatigue, Quality of Life
Interventions
Intervention systematic light exposure, Comparison systematic light exposure
Device
Lead sponsor
Northwestern University
Other
Eligibility
21 Years and older
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Conditions
Cognitive Impairment, Cardiac Disease
Interventions
Not listed
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years to 100 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Cleveland, Ohio
Conditions
Prediabetes (Insulin Resistance, Impaired Glucose Tolerance), Female, Adult, Endothelial Function (Reactive Hyperemia), Arterial Stiffness, Cognition, Oxidative Stress, Gut Microbiota, Overweight, Inflammation, Microvascular Function, Body Composition
Interventions
Wild Blueberry, Placebo
Dietary Supplement
Lead sponsor
Georgia State University
Other
Eligibility
20 Years to 65 Years · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Atlanta, Georgia
Conditions
Ovarian Cancer, Cognitive Impairment
Interventions
N-Acetyl-Cysteine, Placebo
Drug · Other
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older · Female only
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Orange, California
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Effect of Minimally Processed Animal Protein on Biomarkers for Cognitive Decline

NCT06261775
Conditions
Healthy Lifestyle
Interventions
Red meat-based meal, No meat diet
Other
Lead sponsor
South Dakota State University
Other
Eligibility
65 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Brookings, South Dakota
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Intermittent Fasting on Brain Health

NCT06019195
Conditions
Intermittent Fasting, Aging
Interventions
Time restricted eating
Other
Lead sponsor
University of Oklahoma
Other
Eligibility
55 Years to 80 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Conditions
Long COVID, Long Covid19, Long Covid-19
Interventions
BrainHQ/Active Comparator Activity, BrainHQ, PASC CoRE, tDCS-active, tDCS-sham
Other · Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
328 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Delirium, Neurocognitive Disorders, Mild Cognitive Impairment, Alzheimer Disease, Aging, Family Support, Family Members, Caregiver Burden, Implementation Science, Patient Satisfaction
Interventions
HELP, FAM-HELP
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
70 Years and older
Enrollment
1,900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
7
States / cities
Orange, California • Portland, Maine • Ann Arbor, Michigan + 4 more
Conditions
Mild Cognitive Impairment
Interventions
Voice-activated smart speakers
Other
Lead sponsor
Emory University
Other
Eligibility
55 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Atlanta, Georgia
Conditions
Cerebrovascular Disease, Mild Cognitive Impairment
Interventions
Heart Health Intervention
Behavioral
Lead sponsor
Gregory Jicha, 323-5550
Other
Eligibility
55 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
Lexington, Kentucky
Conditions
Mild Cognitive Impairment, Alzheimer's Disease
Interventions
grape seed polyphenolic extract, resveratrol
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
50 Years to 90 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2022
U.S. locations
1
States / cities
Baltimore, Maryland
Not yet recruiting Phase 2 Interventional

Deep Sleep in Older Adults

NCT07316153
Conditions
Insomnia, Insomnia Chronic
Interventions
CBT-I-IoT-AI, SleepEZ CBTi, Sleep Hygiene IoT
Behavioral
Lead sponsor
Proactive Life Inc
Industry
Eligibility
65 Years and older
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
New York, New York
Conditions
Cancer, Advanced, Cognitive Impairment, Mild
Interventions
Dyadic Life Review (DLR)
Behavioral
Lead sponsor
University of Rochester
Other
Eligibility
50 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Rochester, New York
Conditions
Alzheimer Disease, Dementia, Cognitive Impairment
Interventions
Diadem prototype
Device
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 80 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Salt Lake City, Utah
Conditions
Mild Cognitive Impairment
Interventions
Aerobic & Cognitive Training (ACT), Cycling Only, Cognitive Training Only, Stretching and Mental Stimulating Activities
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
65 Years and older
Enrollment
146 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
4
States / cities
Phoenix, Arizona • Stanford, California • Minneapolis, Minnesota + 1 more
Completed No phase listed Observational Accepts healthy volunteers

Study To Analyze Memory/Thinking Problems In Older Adults After Surgery

NCT01786577
Conditions
Post-Operative Cognitive Decline in Older Adults
Interventions
Magnetic Resonance Imaging, Cognitive assessment testing
Other · Behavioral
Lead sponsor
University of Florida
Other
Eligibility
60 Years and older
Enrollment
147 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Gainesville, Florida
Conditions
Breast Cancer, Gynecologic Cancer, Cancer-related Cognitive Difficulties
Interventions
Semiconductor embedded headband, Sham Headband
Device
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Salt Lake City, Utah
Conditions
Bipolar Disorder
Interventions
Memantine, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
3
States / cities
Los Angeles, California • Chicago, Illinois • Boston, Massachusetts
Recruiting No phase listed Observational Accepts healthy volunteers

DC Longitudinal Study on Aging and Specimen Bank

NCT03702907
Conditions
Alzheimer Disease, Dementia, Mild Cognitive Impairment, Aging, Aging Disorder
Interventions
Not listed
Lead sponsor
Georgetown University
Other
Eligibility
45 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2027
U.S. locations
1
States / cities
Washington D.C., District of Columbia