Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Jul 22, 2026, 11:56 PM EDT

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Showing 1–24 of 40 matching trials from the live ClinicalTrials.gov search.
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Active, not recruiting Not applicable Interventional Accepts healthy volunteers

The Wandering Nerve: Gateway to Boost Alzheimer's Disease Related Cognitive Performance

NCT04908358
Conditions
Aging
Interventions
Active transcutaneous vagus nerve stimulation respiratory-gated non-painful electrical stimulation of the auricle for 10 minute sessions, Sham transcutaneous vagus nerve stimulation respiratory-gated non-painful electrical stimulation of the auricle for 10 minute sessions
Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
60 Years to 85 Years
Enrollment
126 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Charlestown, Massachusetts
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Transcranial Magnetic Stimulation to the Cerebellum on Cognition

NCT00740701
Conditions
Cognitive Performance
Interventions
Cerebellar transcranial magnetic stimulation
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
19 Years to 30 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2005
U.S. locations
1
States / cities
Baltimore, Maryland
Completed Not applicable Interventional Accepts healthy volunteers Results available

rTMS to Enhance Cognitive Performance and Promote Resilience

NCT04123496
Conditions
Cognition, Stress Reaction
Interventions
rTMS
Device
Lead sponsor
Medical University of South Carolina
Other
Eligibility
22 Years to 55 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Charleston, South Carolina
Completed No phase listed Observational Accepts healthy volunteers

Prospective Memory in Parkinson's Disease

NCT00913640
Conditions
Memory, Prospective Memory, Parkinson's Disease
Interventions
Not listed
Lead sponsor
Washington University School of Medicine
Other
Eligibility
40 Years to 70 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
St Louis, Missouri
Completed No phase listed Observational Accepts healthy volunteers

Working Memory Performance Among Childhood Brain Tumor Survivors

NCT00693914
Conditions
Brain Tumors
Interventions
Series of tests/questionnaires
Behavioral
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
8 Years to 18 Years
Enrollment
130 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Memphis, Tennessee
Conditions
Memory Performance, Hippocampal Activity
Interventions
TMS electrical stimulation parameters during cognitive and memory demands, DES electrical stimulation parameters during cognitive and memory demands
Other
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
3
States / cities
Chicago, Illinois • St Louis, Missouri
Conditions
Mild Cognitive Impairment
Interventions
Grape Powder, Placebo Powder
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
65 Years to 85 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Los Angeles, California
Completed Not applicable Interventional Accepts healthy volunteers

Increased Protein at Breakfast for Weight Management in Overweight Adolescents

NCT03146442
Conditions
Obesity, Adolescent
Interventions
Breakfast
Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
13 Years to 21 Years
Enrollment
103 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
Austin, Texas
Conditions
Epilepsy
Interventions
Memantine, Sugar Pill
Drug · Other
Lead sponsor
American Academy of Neurology
Other
Eligibility
18 Years to 65 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
3
States / cities
Atlanta, Georgia • Boston, Massachusetts • Newton, Massachusetts
Conditions
Healthy
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 80 Years
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Normal Physiology
Interventions
TMS
Device
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 40 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Cognitive Change, Processing, Visual Spatial, Inhibition (Psychology), Working Memory
Interventions
HUBOD, Active Comparator, Control Condition
Behavioral
Lead sponsor
University of Illinois at Urbana-Champaign
Other
Eligibility
18 Years to 45 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Urbana, Illinois
Conditions
Mild Cognitive Impairment
Interventions
Neuroplasticity-based Computerized Cognitive Remediation
Behavioral
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
55 Years to 85 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Nashville, Tennessee
Conditions
Memory Deficit
Interventions
Memory Drilling, Compensatory Strategies, Cognitive Processing Therapy
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Completed No phase listed Observational Accepts healthy volunteers

Effects of Hydrocortisone in Patients With Post-Traumatic Stress Disorder

NCT00039715
Conditions
Post-Traumatic Stress Disorders, Healthy
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
93 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2004
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Schizophrenia
Interventions
active intermittent Theta Burst Stimulation (iTBS), sham intermittent Theta Burst Stimulation (iTBS)
Device
Lead sponsor
Fabio Ferrarelli
Other
Eligibility
18 Years to 40 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Conditions
Cognitive Performance, Memory, Mood, Anxiety
Interventions
Muscadine Wine Polyphenol, Placebo
Other
Lead sponsor
University of Florida
Other
Eligibility
50 Years to 65 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Gainesville, Florida
Conditions
Nicotine Dependence, Drug Abuse
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 50 Years
Enrollment
249 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Completed Not applicable Interventional Accepts healthy volunteers

The Memory and Cognitive Performance Study

NCT04025255
Conditions
Cognitive Function, Memory, Brain Health
Interventions
Braini, Placebo
Dietary Supplement
Lead sponsor
Vita Naturel, LLC
Industry
Eligibility
18 Years to 80 Years
Enrollment
74 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Asheville, North Carolina
Completed No phase listed Observational Accepts healthy volunteers

Effect of Sedation on Cognitive Performance in the Elderly

NCT03089866
Conditions
Postoperative Cognitive Dysfunction
Interventions
Midazolam (0.02mg/kg)
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
55 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
1
States / cities
Birmingham, Alabama
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effects of Transcranial Electrical Stimulation on Task Performance in Healthy Adults

NCT06995560
Conditions
Healthy, Brain Stimulation, Transcranial Direct Current Stimulation (tDCS), Cognition, Psychomotor Performance, Neurophysiology
Interventions
Active Transcranial Electrical Stimulation, Sham Transcranial Electrical Stimulation
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
25 Years to 55 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Charlestown, Massachusetts
Conditions
Alzheimer's Disease, Mild Cognitive Impairment, Vascular Dementia, Fronto-temporal Dementia, Primary Progressive Aphasia, Parkinson' Disease Dementia, Mixed Dementia
Interventions
Not listed
Lead sponsor
Exonhit
Industry
Eligibility
21 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2011
U.S. locations
3
States / cities
Las Vegas, Nevada • Cleveland, Ohio • Lakewood, Ohio
Conditions
Alzheimer Disease
Interventions
Salvia officinalis (sage)
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
50 Years to 90 Years
Enrollment
111 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2014
U.S. locations
1
States / cities
Portland, Oregon
Conditions
Memory Performance, Hippocampal Network Activity
Interventions
Transcranial magnetic stimulation (TMS)
Other
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Chicago, Illinois