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ClinicalTrials.gov public records Last synced May 22, 2026, 3:47 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Cognition Disorders Clear all
Completed Phase 2Phase 3 Interventional
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
d-cycloserine, glycine, placebo
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 54 Years
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2004
U.S. locations
4
States / cities
Los Angeles, California • Baltimore, Maryland • Glen Oaks, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 19, 2019 · Synced May 22, 2026, 3:47 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Cancer Survivor, Stage 0 Breast Cancer, Stage IA Breast Cancer, Stage IB Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer
Interventions
Computer-Assisted Cognitive Training, Questionnaire Administration, Standard Follow-Up Care
Other · Procedure
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 12, 2017 · Synced May 22, 2026, 3:47 AM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Mild Cognitive Impairment, Dementia
Interventions
TabCAT Brain Health Assessment Clinical Pathway
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
180,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Pasadena, California
Source: ClinicalTrials.gov public record
Updated Oct 30, 2025 · Synced May 22, 2026, 3:47 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Fatigue, Neoplasms
Interventions
dexmethylphenidate(d-mph)
Drug
Lead sponsor
Celgene Corporation
Industry
Eligibility
18 Years to 70 Years
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2004
U.S. locations
21
States / cities
Birmingham, Alabama • Flagstaff, Arizona • Tucson, Arizona + 17 more
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced May 22, 2026, 3:47 AM EDT
Completed Phase 3 Interventional
View directory record Official record
Conditions
Schizophrenia, Cognition
Interventions
Sertindole, Quetiapine
Drug
Lead sponsor
H. Lundbeck A/S
Industry
Eligibility
18 Years to 55 Years
Enrollment
264 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
26
States / cities
Garden Grove, California • National City, California • Pasadena, California + 23 more
Source: ClinicalTrials.gov public record
Updated May 27, 2014 · Synced May 22, 2026, 3:47 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Cognitive Impairment, Malignant Neoplasm
Interventions
Ibuprofen, Placebo, Questionnaire Administration
Drug · Other
Lead sponsor
University of Rochester NCORP Research Base
Other
Eligibility
18 Years and older
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
169
States / cities
Burbank, California • Lewes, Delaware • Newark, Delaware + 99 more
Source: ClinicalTrials.gov public record
Updated Sep 24, 2023 · Synced May 22, 2026, 3:47 AM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Pseudohypoparathyroidism Type 1A, Albright Hereditary Osteodystrophy, Pseudopseudohypoparathyroidism
Interventions
Neurocognitive and psychosocial testing
Behavioral
Lead sponsor
Connecticut Children's Medical Center
Other
Eligibility
2 Months to 89 Years
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2030
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated May 27, 2025 · Synced May 22, 2026, 3:47 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Alzheimer Disease
Interventions
MAR
Drug
Lead sponsor
Noah Pharmaceuticals, Inc.
Industry
Eligibility
50 Years to 85 Years
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
16
States / cities
Scottsdale, Arizona • Huntington Beach, California • DeLand, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced May 22, 2026, 3:47 AM EDT
Terminated Phase 3 Interventional
View directory record Official record
Conditions
Alzheimer's Disease, Dementia
Interventions
Drug: EVP-6124, Placebo
Drug
Lead sponsor
FORUM Pharmaceuticals Inc
Industry
Eligibility
55 Years to 85 Years
Enrollment
474 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
44
States / cities
Phoenix, Arizona • Tucson, Arizona • Costa Mesa, California + 41 more
Source: ClinicalTrials.gov public record
Updated May 2, 2016 · Synced May 22, 2026, 3:47 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
TBS
Device
Lead sponsor
University of Arizona
Other
Eligibility
50 Years to 85 Years
Enrollment
97 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced May 22, 2026, 3:47 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Marijuana Abuse
Interventions
AEF0117, Placebo oral capsule
Drug
Lead sponsor
Aelis Farma
Industry
Eligibility
18 Years to 65 Years
Enrollment
333 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
11
States / cities
Phoenix, Arizona • Garden Grove, California • Los Angeles, California + 8 more
Source: ClinicalTrials.gov public record
Updated Jul 29, 2024 · Synced May 22, 2026, 3:47 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Weight Loss, Wait-List Control
Interventions
Stress reactivity stimuli
Behavioral
Lead sponsor
Oklahoma State University
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Stillwater, Oklahoma
Source: ClinicalTrials.gov public record
Updated Mar 18, 2021 · Synced May 22, 2026, 3:47 AM EDT
Enrolling by invitation No phase listed Observational
View directory record Official record
Conditions
Epilepsy
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 65 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2027
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced May 22, 2026, 3:47 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Neurologic Manifestations, Neurobehavioral Manifestations
Interventions
Video game based training
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
60 Years to 75 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 4, 2015 · Synced May 22, 2026, 3:47 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Alzheimer Disease
Interventions
SPPB++ Application
Diagnostic Test
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced May 22, 2026, 3:47 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Gonadal Dysgenesis, Turner's Syndrome
Interventions
cognitive tests and scales
Behavioral
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
Not listed
Enrollment
950 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1990 – 2004
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced May 22, 2026, 3:47 AM EDT
Not yet recruiting Not applicable Interventional
View directory record Official record
Conditions
Brain Cancer
Interventions
Virtual Reality System, Word Search Puzzles
Other
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 1, 2026 · Synced May 22, 2026, 3:47 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Schizotypal Personality Disorder, SPD
Interventions
DAR 0-100A, Placebo
Drug
Lead sponsor
Antonia New
Other
Eligibility
18 Years to 65 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 8, 2018 · Synced May 22, 2026, 3:47 AM EDT
Completed Phase 3 Interventional
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
adjunctive treatment with buspirone, placebo
Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2004
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 6, 2017 · Synced May 22, 2026, 3:47 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
Transcranial alternating current stimulation
Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
60 Years to 80 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 10, 2023 · Synced May 22, 2026, 3:47 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Schizophrenia
Interventions
Brain Fitness Program (BFP), Cognitive Package (Cogpack), Commercial Computer Games (Sporcle)
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
25 Years to 65 Years
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
2
States / cities
Los Angeles, California • West Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 13, 2019 · Synced May 22, 2026, 3:47 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Mild Cognitive Impairment, Memory Disorders, Memory Loss
Interventions
HD-tDCS combined with CT, sham HD-tDCS combined with CT
Device
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
50 Years to 90 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 22, 2026 · Synced May 22, 2026, 3:47 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Brigance Preschool Screen -II
Other
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
3 Years to 4 Years
Enrollment
248 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 27, 2018 · Synced May 22, 2026, 3:47 AM EDT
Active, not recruiting No phase listed Observational
View directory record Official record
Conditions
Histiocytosis
Interventions
Trail Making Test, Parts A & B, Brief Test of Attention, Symbol Span, Controlled Oral Word Association Test, The Hopkins Verbal Learning Test-Revised, Brief Visuospatial Memory Test-Revised, Hospital Anxiety and Depression Scale, McGill Quality of Life Scale, MR Brain Imaging, Resting state functional MRI, Functional Assessment of Cancer Therapy Cognitive Scale (FACT-Cog)
Behavioral · Diagnostic Test
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
4
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Commack, New York + 1 more
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced May 22, 2026, 3:47 AM EDT