Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 9, 2026, 8:30 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Brain and Central Nervous System Tumors, Cognitive/Functional Effects, Fatigue, Neurotoxicity, Psychosocial Effects of Cancer and Its Treatment
Interventions
modafinil, placebo
Drug · Other
Lead sponsor
University of South Florida
Other
Eligibility
6 Years to 19 Years
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
60
States / cities
Birmingham, Alabama • Long Beach, California • Los Angeles, California + 53 more
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Methylphenidate Treatment of Attention Deficits in Epilepsy

NCT02178995
Conditions
Epilepsy, Cognitive Deficits, Attention Deficits
Interventions
Methylphenidate
Drug
Lead sponsor
Kimford Jay Meador
Other
Eligibility
18 Years to 65 Years
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Palo Alto, California
Conditions
Sickle Cell Disease, Executive Dysfunction, Cognitive Impairment, Attention Deficit/Hyperactivity Disorder (ADHD)
Interventions
Extended-Release Methylphenidate
Drug
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
8 Years to 17 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Memphis, Tennessee
Conditions
Traumatic Brain Injury, Memory Deficits
Interventions
Donepezil, Placebo
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 60 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2024
U.S. locations
4
States / cities
Indianapolis, Indiana • Charlestown, Massachusetts • Elkins Park, Pennsylvania + 1 more
Completed Phase 2 Interventional Results available

Atomoxetine and Huntington's Disease

NCT00368849
Conditions
Huntington Disease, Chorea
Interventions
atomoxetine, Matching Placebo
Drug
Lead sponsor
University of Iowa
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
Iowa City, Iowa
Conditions
Mild Cognitive Impairment, Cognitive Decline, Cognitive Deterioration, Cognitive Deficits, Mild, Cognitive Impairment, Mild
Interventions
Brain Health Academy, Brain Health Together, Maintain Brain Health Together
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
55 Years to 85 Years
Enrollment
208 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
San Francisco, California
Conditions
Healthy Subjects
Interventions
Ketamine, Nicotine, Placebo, Ketamine and Nicotine
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2009
U.S. locations
1
States / cities
West Haven, Connecticut
Conditions
Sickle Cell Disease, Cognitive Impairment, Adolescent Behavior, Self Efficacy, Health-Related Behavior, Coping Skills
Interventions
CREADY (Cognitive-Remediation of Executive and Adaptive Deficits in Youth)
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
10 Years to 18 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Birmingham, Alabama
Conditions
Pediatric Retinoblastoma, Retinoblastoma
Interventions
Wechsler Intelligence Scale for Children, Fifth Edition (WISC-V), California Verbal Learning Test, Children's Version, Beery Developmental Test of Visual Motor Integration, 6th edition, Grooved Pegboard Test, Behavior Assessment System for Children/Parent Report
Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
6 Years to 17 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2027
U.S. locations
1
States / cities
New York, New York
Conditions
Mild Cognitive Impairment
Interventions
Transcranial Magnetic Stimulation
Device
Lead sponsor
Duke University
Other
Eligibility
55 Years to 80 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Cognition Disorders
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
230 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1993 – 2001
U.S. locations
1
States / cities
Bethesda, Maryland
Completed No phase listed Observational Accepts healthy volunteers

Sleep Dysfunction and Neurocognitive Outcomes in Adolescent ADHD

NCT02897362
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
13 Years to 17 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Durham, North Carolina
Completed Not applicable Interventional Results available

Clinical Trial of Dipyridamole in Schizophrenia

NCT00349973
Conditions
Schizophrenia, Schizoaffective Disorder, Schizophreniform Disorder
Interventions
Dipyridamole, Olanzapine
Drug · Other
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 65 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Cognitive Deficit
Interventions
Brain Stimulation
Procedure
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years to 70 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Cincinnati, Ohio
Conditions
Posttraumatic Stress Disorder (PTSD)
Interventions
Methylphenidate, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 65 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
3
States / cities
Birmingham, Alabama • Tuscaloosa, Alabama • Seattle, Washington
Conditions
Childhood Brain Tumor
Interventions
Neurocognitive testing, rsfcMRI
Other · Device
Lead sponsor
Washington University School of Medicine
Other
Eligibility
4 Years to 18 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2029
U.S. locations
1
States / cities
St Louis, Missouri
Conditions
Depressive Disorder, Major
Interventions
memantine, Placebo Oral Capsule
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 75 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Stanford, California
Conditions
Major Depressive Disorder (MDD), Cognitive Dysfunction
Interventions
Motivationally Enhanced Compensatory Cognitive Training for Major Depressive Disorder (ME-CCT-MDD), Goal-focused Supportive Contact
Behavioral
Lead sponsor
Portland VA Medical Center
Federal
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Portland, Oregon
Completed No phase listed Observational Accepts healthy volunteers

Screening for Memory Studies

NCT01123018
Conditions
Memory Loss, Memory Deficits, Dementia, Alzheimer Disease
Interventions
Memtrax Memory screening test
Behavioral
Lead sponsor
John Wesson Ashford Jr
Federal
Eligibility
21 Years and older
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2023
U.S. locations
1
States / cities
Palo Alto, California
Conditions
Dementia
Interventions
QEEG-based Neurofeedback Training
Behavioral
Lead sponsor
Quietmind Foundation
Other
Eligibility
45 Years to 85 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Lafayette Hill, Pennsylvania
Conditions
Schizophrenia
Interventions
TARA computer-based exercises
Behavioral
Lead sponsor
Posit Science Corporation
Industry
Eligibility
18 Years to 35 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
2
States / cities
San Francisco, California
Conditions
Multiple Sclerosis
Interventions
donepezil, glucose
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
18 Years to 56 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2002
U.S. locations
1
States / cities
Stony Brook, New York
Conditions
Schizophrenia, Cognitive Deficits, Schizophrenia; Negative Type
Interventions
N-acetylcysteine, Treatment as Usual
Drug · Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 65 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Mild Cognitive Impairment
Interventions
Donepezil, Atropine
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
55 Years to 95 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
New York, New York