Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 25, 2026, 4:17 AM EDT

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Showing 913–936 of 1,870 matching trials from the live ClinicalTrials.gov search.
Conditions
Attention Deficit Disorder With Hyperactivity
Interventions
Meta-Cognitive Therapy, Supportive Therapy
Behavioral
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years to 65 Years
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
New York, New York
Not listed Not applicable Interventional Accepts healthy volunteers

Juice Plus Supplement Clinical Trial

NCT04656860
Conditions
Cognitive Impairment, Alzheimer Disease, Early Onset, Mild Cognitive Impairment
Interventions
Juice Plus+
Dietary Supplement
Lead sponsor
University of Alabama, Tuscaloosa
Other
Eligibility
55 Years to 90 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
2
States / cities
Tuscaloosa, Alabama
Conditions
Dementia, Mild Cognitive Impairment
Interventions
Nicorandil, Placebo
Drug
Lead sponsor
Gregory Jicha, MD, PhD
Other
Eligibility
70 Years and older
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Lexington, Kentucky
Conditions
Alzheimer Disease, Mild Cognitive Impairment
Interventions
2-hydroxybenzylamine acetate, Placebo
Drug · Other
Lead sponsor
MTI Biotech Inc
Industry
Eligibility
55 Years to 85 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Nashville, Tennessee
Conditions
Schizophrenia, Impaired Cognition
Interventions
EVP-6124
Drug
Lead sponsor
FORUM Pharmaceuticals Inc
Industry
Eligibility
18 Years to 50 Years
Enrollment
830 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
69
States / cities
Little Rock, Arkansas • Anaheim, California • Bellflower, California + 66 more
Conditions
Aging, Age-related Cognitive Decline, Obesity
Interventions
Strawberry, Placebo
Dietary Supplement · Other
Lead sponsor
USDA Human Nutrition Research Center on Aging
Federal
Eligibility
55 Years to 75 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Enrolling by invitation Phase 2 Interventional Accepts healthy volunteers

Alzheimer's Disease Research Center (ADRC) PET Component Study

NCT07758660
Conditions
Alzheimer Disease, Mild Cognitive Impairment (MCI), Dementia
Interventions
18F-MK6240, 18F-Florbetaben (FBB)
Drug
Lead sponsor
Patrick Lao
Other
Eligibility
50 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2033
U.S. locations
1
States / cities
New York, New York
Conditions
Mild Cognitive Impairment, Early Alzheimer's Disease, AD-MCI
Interventions
human Mesenchymal Stem Cells
Biological
Lead sponsor
Bernard (Barry) Baumel
Other
Eligibility
55 Years to 90 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Miami, Florida
Conditions
Mild Cognitive Impairment, Mild Dementia, Moderate Dementia, Alzheimer Disease
Interventions
Biological/Vaccine: Bacillus Calmette-Guerin (BCG)
Biological
Lead sponsor
Steven E Arnold, MD
Other
Eligibility
55 Years to 85 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Charlestown, Massachusetts
Completed Phase 2 Interventional Results available

18-Month Study of Memory Effects of Curcumin

NCT01383161
Conditions
Age-associated Cognitive Impairment, Mild Cognitive Impairment (MCI)
Interventions
Curcumin, Placebo
Drug · Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
50 Years to 90 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Major Depressive Disorder, Bipolar Disorder, Mild Cognitive Impairment
Interventions
Observational assessment using functional near-infrared spectroscopy (fNIRS), a noninvasive, portable brain imaging tool that measures changes in brain blood flow and oxygen levels.
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
200 participants
Timeline
2025 – 2028
U.S. locations
1
States / cities
Rochester, Minnesota
Conditions
Aging, Mild Cognitive Impairment, Dementia, Old Age; Dementia, Cognitive Decline
Interventions
My Healthy Brain Version 2
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
60 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Brain Health Virtual Reality Study

NCT06124339
Conditions
Aging, Aging Problems, Memory Loss, Memory Impairment, Memory Disorders in Old Age, Memory Disorder, Spatial, Memory Disorders, Mild Cognitive Impairment, Cognitive Decline, Cognitive Change, Cognition Disorders in Old Age
Interventions
Physical Activity, Cognitive Activity (VR), Physical and Cognitive Activity
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
50 Years to 85 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2029
U.S. locations
1
States / cities
San Diego, California
Completed Not applicable Interventional Accepts healthy volunteers

Exercise Adherence and Cognitive Decline

NCT06769022
Conditions
Cognitive Decline
Interventions
Goal Setting and Exercise Intensity Intervention
Behavioral
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
45 Years to 65 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
3
States / cities
Aurora, Colorado • Boulder, Colorado • Denver, Colorado
Conditions
Mild Cognitive Impairment, Alzheimer Disease, Subjective Cognitive Decline (SCD)
Interventions
Green Activity Program
Behavioral
Lead sponsor
Indiana University
Other
Eligibility
45 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Bloomington, Indiana
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
Cognitive Impairment, Mild, Dementia, Cardiovascular Diseases
Interventions
Atorvastatin 40 Mg Oral Tablet, Placebo oral tablet
Drug
Lead sponsor
Duke University
Other
Eligibility
75 Years and older
Enrollment
20,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
104
States / cities
Birmingham, Alabama • Tucson, Arizona • Little Rock, Arkansas + 70 more
Conditions
Mucopolysaccharidosis (MPS), Hunter Syndrome
Interventions
Not listed
Lead sponsor
Shire
Industry
Eligibility
2 Years to 18 Years · Male only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
3
States / cities
Oakland, California • Chicago, Illinois • Chapel Hill, North Carolina
Conditions
Parkinson Disease, Cognitive Impairment
Interventions
Istradefylline medication
Drug
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
50 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Richmond, Virginia
Conditions
Cognitive Impairment, Traumatic Brain Injury
Interventions
repetitive Transcranial Magnetic Stimulation
Device
Lead sponsor
Hunter Holmes Mcguire Veteran Affairs Medical Center
Federal
Eligibility
18 Years to 65 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Richmond, Virginia
Conditions
Cognitive Impairment
Interventions
Songwriting with licensed music therapist
Behavioral
Lead sponsor
Vanderbilt University
Other
Eligibility
7 Years to 17 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Nashville, Tennessee
Completed No phase listed Observational Accepts healthy volunteers

Novel Retinal Imaging Biomarkers in Early Alzheimer's Disease

NCT01937221
Conditions
Mild Cognitive Impairment, Mild to Moderate Cognitive Impairment
Interventions
spectral-domain optical coherence tomography (SD-OCT)
Other
Lead sponsor
Duke University
Other
Eligibility
55 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Durham, North Carolina
Completed Not applicable Interventional Accepts healthy volunteers

The REMIND Study- SPARK Neuro Software Study

NCT05406778
Conditions
Alzheimer Disease, Cognitive Impairment
Interventions
SPARK Test
Device
Lead sponsor
Spark Neuro Inc.
Industry
Eligibility
55 Years to 85 Years
Enrollment
185 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
7
States / cities
Loma Linda, California • Englewood, Colorado • Ocala, Florida + 4 more
Completed Phase 1Phase 2 Interventional Results available

Reversal of General Anesthesia With Methylphenidate

NCT02051452
Conditions
Post Operative Cognitive Dysfunction, Emergence From Anesthesia
Interventions
Methylphenidate, Saline
Drug · Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts