Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 21, 2026, 1:31 PM EDT

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Showing 1–24 of 327 matching trials from the live ClinicalTrials.gov search.
Conditions
Cognitive Enhancement During Exercise
Interventions
Huperzine A, Placebo
Other
Lead sponsor
St. Louis University
Other
Eligibility
18 Years to 60 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
St Louis, Missouri
Conditions
Hypo-unawareness, Type 1 Diabetes Mellitus
Interventions
Medium chain triglycerides
Dietary Supplement
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
New Haven, Connecticut
Conditions
Healthy Volunteers
Interventions
Rhodiola rosea (low dose), Rhodiola rosea (high dose), Placebo capsules
Dietary Supplement
Lead sponsor
Jacksonville State University
Other
Eligibility
18 Weeks to 40 Weeks
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Jacksonville, Alabama
Conditions
Depression in Adolescence, Adverse Childhood Experiences
Interventions
FIRST: Repairing Thoughts
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
12 Years to 15 Years
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Recruiting No phase listed Observational

Registry of Older Patients With Cancer

NCT01137825
Conditions
Chronic Myeloproliferative Disorders, Cognitive/Functional Effects, Leukemia, Lymphoma, Lymphoproliferative Disorder, Multiple Myeloma and Plasma Cell Neoplasm, Myelodysplastic Syndromes, Myelodysplastic/Myeloproliferative Neoplasms, Unspecified Adult Solid Tumor, Protocol Specific
Interventions
Not listed
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
65 Years and older
Enrollment
3,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2030
U.S. locations
7
States / cities
Boone, North Carolina • Chapel Hill, North Carolina • Greenville, North Carolina + 4 more
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Clinical Trial of Tolcapone for Cognition in Schizophrenia

NCT00044083
Conditions
Schizophrenia
Interventions
Placebo, Tolcapone
Other · Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 50 Years
Enrollment
210 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2015
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Cognitive/Functional Effects, Recurrent Breast Cancer, Stage IA Breast Cancer, Stage IB Breast Cancer, Stage II Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer
Interventions
ultrasound imaging, questionnaire administration, assessment of therapy complications, quality-of-life assessment, magnetic resonance imaging
Procedure · Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Completed Phase 2 Interventional Results available

L-Threonic Acid Magnesium Salt (L-TAMS) in ADHD

NCT02558790
Conditions
Attention Deficit/Hyperactivity Disorder, ADHD
Interventions
L-Threonic Acid Magnesium Salt (L-TAMS)
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Recruiting Not applicable Interventional Accepts healthy volunteers

Brain Stimulation Effects on Cognitive Task Performance

NCT05556655
Conditions
Cognitive Function
Interventions
Transcranial Magnetic Stimulation
Device
Lead sponsor
Colorado State University
Other
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
Fort Collins, Colorado
Completed Not applicable Interventional Results available

Exercise and Cognitive Training in Parkinson's Disease

NCT01156714
Conditions
Parkinson's Disease
Interventions
Treadmill training with aerobic exercise, Memory training with computerized memory program, Combination of treadmill training and computerized memory
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
40 Years to 90 Years
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
PARKINSON DISEASE (Disorder), Parkinson s Disease
Interventions
TMS
Device
Lead sponsor
San Francisco Neurology and Sleep Center
Other
Eligibility
50 Years to 90 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
San Francisco, California
Conditions
Emotion, Impaired Cognition
Interventions
Music, Imagery, Movement, Social Control
Behavioral
Lead sponsor
George Mason University
Other
Eligibility
Not listed
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Manassas, Virginia
Recruiting Not applicable Interventional Accepts healthy volunteers

Cognitive Vitality Pilot Study

NCT07208279
Conditions
Aging, Healthy Aging, Cognition, Memory, Brain
Interventions
Axolt Brain Supplement, Bolero - Flavored Drink Placebo
Dietary Supplement
Lead sponsor
Arizona State University
Other
Eligibility
55 Years and older
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
West Palm Beach, Florida
Completed No phase listed Observational Accepts healthy volunteers

Maternal Carotenoids Across Pregnancy Study

NCT06004479
Conditions
Healthy Nutrition, Pregnancy Related
Interventions
Carotenoid Intake, Serum carotenoid concentration
Other
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Houston, Texas
Completed Not applicable Interventional

The Active Mind Study

NCT03289546
Conditions
Cognitive Impairment, Cardiovascular Risk Factor
Interventions
Mindfulness training, Aerobic training
Behavioral
Lead sponsor
The Miriam Hospital
Other
Eligibility
55 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Providence, Rhode Island
Conditions
Sleep Initiation and Maintenance Disorders, Insomnia
Interventions
GW679769
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
26
States / cities
Phoenix, Arizona • Tucson, Arizona • Anaheim, California + 21 more
Conditions
Healthy Aging, Cognitive Benefits, Cardio Respiratory Fitness, Brain Activity
Interventions
High-Intensity Interval Training
Behavioral
Lead sponsor
Colby-Sawyer College
Other
Eligibility
55 Years to 79 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
New London, New Hampshire
Recruiting Not applicable Interventional Accepts healthy volunteers

Cerebellar Involvement in Cognitive Sequencing

NCT06108336
Conditions
Effects of Cerebellar Stimulation on Brain Activation
Interventions
TMS during sequence-demanding task, No TMS during sequence-demanding task, TMS during non-sequence-demanding task, No TMS during non-sequence-demanding task
Procedure
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 50 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Cognitive/Functional Effects, Depression, Fatigue, Unspecified Adult Solid Tumor, Protocol Specific
Interventions
modafinil, cognitive assessment, psychosocial assessment and care, quality-of-life assessment
Drug · Procedure
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2004
U.S. locations
1
States / cities
Charlottesville, Virginia
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Hydration on Gut Health and Thinking

NCT05315531
Conditions
Dehydration, Cognitive Change, Gastrointestinal Microbiota
Interventions
Water Intake
Dietary Supplement
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
19 Years to 50 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Urbana, Illinois
Conditions
Psychopathy
Interventions
continuous theta burst stimulation (cTBS), Intermittent theta burst stimulation (iTBS), Sham
Device
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 60 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Aurora, Colorado
Conditions
Obesity, Body Weight
Interventions
DGA Mediterranean diet pattern, energy balance, DGA Mediterranean diet pattern, negative energy balance, TAD diet pattern, negative energy balance
Other
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
19 Years to 64 Years · Female only
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Davis, California
Completed Not applicable Interventional Accepts healthy volunteers

The Acute Effects of Onnit Alpha Brain on Cognition and Mood States

NCT07495592
Conditions
Cognitive, Mood and Cognitive Performance, Sleep Deprivation, Executive Function (Cognition), Fatigue
Interventions
Alpha Brain proprietary cognitive dietary supplement, Alpha Brain 2.0 proprietary cognitive dietary supplement, Controlled Placebo
Dietary Supplement
Lead sponsor
Applied Science & Performance Institute
Industry
Eligibility
20 Years to 59 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Tampa, Florida
Conditions
Chronic Heart Failure (CHF)
Interventions
LCZ696, Valsartan, Placebo of LCZ696, Placebo of Valsartan
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
60 Years and older
Enrollment
592 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
52
States / cities
Andalusia, Alabama • Glendale, Arizona • Mesa, Arizona + 45 more