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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Cognition Disorder Clear all
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Thermoregulation and Cognition During Cool Ambient Exposure in Tetraplegia

NCT02379156
View directory record Official record
Conditions
Tetraplegia, Hypothermia, Mild Cognitive Impairment
Interventions
Midodrine Hydrochloride, Cool Temperature
Drug · Other
Lead sponsor
James J. Peters Veterans Affairs Medical Center
Federal
Eligibility
18 Years to 68 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2022
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Mar 20, 2025 · Synced Sep 23, 2026, 3:26 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Breathing Training to Improve Human Performance at High Altitude

NCT03530163
View directory record Official record
Conditions
Mountain Sickness Acute
Interventions
Respiratory Muscle Training, Sham Breathing Training
Device
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 45 Years · Male only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 18, 2022 · Synced Sep 23, 2026, 3:26 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Neurotrack Test Validation Protocol

NCT02608021
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
Not listed
Lead sponsor
NYU Langone Health
Other
Eligibility
60 Years to 85 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 19, 2019 · Synced Sep 23, 2026, 3:26 PM EDT
Not listed No phase listed Observational

Living Alone in Old Age With Cognitive Impairment

NCT03330587
View directory record Official record
Conditions
Living Alone, Alzheimer Disease, Mild Cognitive Impairment
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
55 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2025
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 17, 2023 · Synced Sep 23, 2026, 3:26 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Determining Changes in Brain Structure Associated With Symptoms of Late-life Depression

NCT00178087
View directory record Official record
Conditions
Late-Life Depression
Interventions
Not listed
Lead sponsor
University of Pittsburgh
Other
Eligibility
55 Years and older
Enrollment
331 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2011
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 6, 2015 · Synced Sep 23, 2026, 3:26 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Direct Current Brain Stimulation on Cognition

NCT00048698
View directory record Official record
Conditions
Electrical Stimulation of the Brain
Interventions
TMS, EEG
Procedure
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
170 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 23, 2026, 3:26 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Effectiveness of Light for Enhancement of Cognition by Transcranial Repeated Application (ELECTRA)

NCT02817061
View directory record Official record
Conditions
Disease Type and/or Category Not Applicable
Interventions
Omnilux
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 85 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 1, 2026 · Synced Sep 23, 2026, 3:26 PM EDT
Terminated No phase listed Observational

Behavioral Effects of Kuvan in Children With Mild Phenylketonuria

NCT00827762
View directory record Official record
Conditions
Phenylketonuria
Interventions
Kuvan
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
6 Years to 18 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
4
States / cities
Chicago, Illinois • Columbia, Missouri • St Louis, Missouri + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 4, 2013 · Synced Sep 23, 2026, 3:26 PM EDT
Completed Phase 2Phase 3 Interventional

The Combination of Donepezil and Cognitive Training for Treating Alcohol Use Disorder

NCT04318639
View directory record Official record
Conditions
Alcohol Use Disorder, Mild Cognitive Impairment
Interventions
Donepazil
Combination Product
Lead sponsor
VA Connecticut Healthcare System
Federal
Eligibility
21 Years to 80 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 23, 2020 · Synced Sep 23, 2026, 3:26 PM EDT
Completed No phase listed Observational

DIGITAL Biomarker: Blood Based Biomarkers in the Primary Care Setting for Alzheimer's Disease

NCT05844488
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
PrecivityAD
Device
Lead sponsor
Indiana University
Other
Eligibility
65 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Jul 24, 2023 · Synced Sep 23, 2026, 3:26 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Study Investigating the Effectiveness of a LifeSeasons NeuroQ Supplement With Lifestyle Changes to Improve Cognitive Function in Healthy Adults Who Have One or More Risk Factors for Cognitive Decline

NCT04149639
View directory record Official record
Conditions
Healthy
Interventions
NeuroQ
Dietary Supplement
Lead sponsor
LifeSeasons Inc.
Industry
Eligibility
45 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
2
States / cities
Studio City, California • Flower Mound, Texas
Source: ClinicalTrials.gov public record
Updated Mar 1, 2021 · Synced Sep 23, 2026, 3:26 PM EDT
Completed Phase 2 Interventional Results available

Nicotinic Receptors and Schizophrenia

NCT01400477
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
DMXB-A-SR, Placebo
Drug · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 65 Years
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
2
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated May 6, 2019 · Synced Sep 23, 2026, 3:26 PM EDT
Completed Phase 4 Interventional

Improving Work Outcome in People With Recent-onset Schizophrenia

NCT00203788
View directory record Official record
Conditions
Schizophrenia
Interventions
Individual Placement and Support, Workplace Fundamentals Module, Brokered Vocational Rehabilitation, Oral risperidone, Skills training group
Behavioral · Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 45 Years
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2006
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 29, 2013 · Synced Sep 23, 2026, 3:26 PM EDT
Completed Not applicable Interventional

HeartMapp: Assessment and Treatment for Heart Failure

NCT03827954
View directory record Official record
Conditions
Heart Failure, Cognitive Impairment
Interventions
HeartMapp+CT
Other
Lead sponsor
Posit Science Corporation
Industry
Eligibility
40 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Aug 23, 2021 · Synced Sep 23, 2026, 3:26 PM EDT
Completed Phase 2 Interventional Results available

Maximizing trEatment of Neurological Dysfunction Using INtravenous Guanfacine Study

NCT04742673
View directory record Official record
Conditions
Critical Illness, Delirium, Cognitive Impairment
Interventions
Guanfacine, Placebo
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Feb 18, 2026 · Synced Sep 23, 2026, 3:26 PM EDT
Not listed No phase listed Observational

Development of Assessments for Later Stage HD

NCT04370470
View directory record Official record
Conditions
Huntington Disease
Interventions
Not listed
Lead sponsor
CHDI Foundation, Inc.
Other
Eligibility
20 Years and older
Enrollment
340 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
9
States / cities
Birmingham, Alabama • La Jolla, California • Los Angeles, California + 6 more
Source: ClinicalTrials.gov public record
Updated Apr 30, 2020 · Synced Sep 23, 2026, 3:26 PM EDT
Completed Phase 4 Interventional Results available

Treatment of Alcohol Dependence and Comorbid Bipolar Disorder

NCT01015586
View directory record Official record
Conditions
Alcohol Dependence, Bipolar Disorder, Depression, Mania, Psychosis
Interventions
Lamotrigine, Placebo
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jan 8, 2019 · Synced Sep 23, 2026, 3:26 PM EDT
Completed Phase 2 Interventional

Safety and Efficacy of MEM 3454 Versus Placebo in Patients With Mild to Moderate Alzheimer's Disease

NCT00454870
View directory record Official record
Conditions
Alzheimer's Disease
Interventions
MEM 3454
Drug
Lead sponsor
Memory Pharmaceuticals
Industry
Eligibility
50 Years to 80 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
7
States / cities
Phoenix, Arizona • Glendale, California • Atlanta, Georgia + 3 more
Source: ClinicalTrials.gov public record
Updated May 5, 2008 · Synced Sep 23, 2026, 3:26 PM EDT
Completed Not applicable Interventional

Cognitive Training Delivered Remotely to Individuals With Psychosis (ROAM)

NCT02782442
View directory record Official record
Conditions
Treatment, Active Control, Schizophrenia, Psychosis, Schizoaffective Disorder, Psychotic Depression, Psychotic Mood Disorders, Psychotic Disorders, Psychotic Episode, Cognitive Impairment
Interventions
Structured Cognitive Training & PRIME, Computer Games Control & PRIME
Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 60 Years
Enrollment
109 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
2
States / cities
San Francisco, California • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 7, 2022 · Synced Sep 23, 2026, 3:26 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

CEReBral AutorEgulation in Non-cardiac SuRgery and Relationship to Postoperative DeliriUm State

NCT06133842
View directory record Official record
Conditions
Perioperative/Postoperative Complications, Postoperative Cognitive Dysfunction, Postoperative Delirium, EEG With Periodic Abnormalities, Intraoperative Hypotension, Cerebral Hypoperfusion
Interventions
Intra-op EEG and CO data collection
Diagnostic Test
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
60 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 27, 2025 · Synced Sep 23, 2026, 3:26 PM EDT
Recruiting Not applicable Interventional

Remotely Supervised tDCS+ for Complex Attention in mTBI (Cognetric)

NCT06413173
View directory record Official record
Conditions
Brain Concussion, Brain Trauma, Attention Concentration Difficulty, Brain Injuries, Brain Injuries, Traumatic, Neurocognitive Dysfunction, Attention Impaired, Memory Impairment, Mild Traumatic Brain Injury, Mild Cognitive Impairment, Post Concussive Symptoms
Interventions
Active tDCS and Cognitive Training Intervention, Sham tDCS and Cognitive Training Intervention
Combination Product
Lead sponsor
United States Naval Medical Center, San Diego
Federal
Eligibility
18 Years to 60 Years
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
2
States / cities
San Diego, California • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 11, 2025 · Synced Sep 23, 2026, 3:26 PM EDT
Completed No phase listed Observational

FuRST 2.0 Cognitive Pre-testing - Round 2

NCT03709173
View directory record Official record
Conditions
Huntington Disease
Interventions
FuRST 2.0
Behavioral
Lead sponsor
CHDI Foundation, Inc.
Other
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
3
States / cities
Englewood, Colorado • Wichita, Kansas • New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 28, 2019 · Synced Sep 23, 2026, 3:26 PM EDT
Not listed Phase 1Phase 2 Interventional Accepts healthy volunteers

Behavioral and Physiological Effects of Visual Training

NCT00526942
View directory record Official record
Conditions
Healthy
Interventions
SAAGE-designed, visual memory-based cognitive training
Behavioral
Lead sponsor
Posit Science Corporation
Industry
Eligibility
60 Years and older
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
San Francisco Bay Area, California
Source: ClinicalTrials.gov public record
Updated Sep 10, 2007 · Synced Sep 23, 2026, 3:26 PM EDT
Completed Not applicable Interventional

Mindfulness Based Stress Reduction for Older Adults With HIV Associated Neurocognitive Disorders

NCT02936401
View directory record Official record
Conditions
Impaired Cognition, HIV Infection
Interventions
MBSR
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
55 Years and older
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Aug 6, 2020 · Synced Sep 23, 2026, 3:26 PM EDT