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ClinicalTrials.gov public records Last synced Oct 22, 2026, 2:03 AM EDT

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Showing 1–24 of 2,126 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Cognitive Deficits Clear all
Recruiting Phase 1Phase 2 Interventional

Phase 2 Trial of Tributyrin in People With Parkinson's Disease and Cognitive Impairments

NCT07154511
View directory record Official record
Conditions
Parkinson Disease, Parkinson Disease Dementia
Interventions
Tributyrin, Placebo
Drug
Lead sponsor
Prabesh Kanel
Other
Eligibility
45 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 12, 2025 · Synced Oct 22, 2026, 2:03 AM EDT
Completed Phase 2 Interventional

Evaluation of a Cognitive Adaptive E-treatment in Schizophrenia-diagnosed Adults

NCT01422902
View directory record Official record
Conditions
Schizophrenia
Interventions
Plasticity-based Cognitive Training, Non-plasticity-based Training
Other
Lead sponsor
Posit Science Corporation
Industry
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
2
States / cities
Palo Alto, California • San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 8, 2016 · Synced Oct 22, 2026, 2:03 AM EDT
Enrolling by invitation Not applicable Interventional

To Drill or Not to Drill: Do Memory Drills Help Train the Ability to "Remember to Remember" in Veterans

NCT06656637
View directory record Official record
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 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 5, 2026 · Synced Oct 22, 2026, 2:03 AM EDT
Not yet recruiting Phase 1Phase 2 Interventional

A Basket Clinical Study to Assess Glycerol Tributyrate in Patients With Mitochondrial Encephalopathy, Lactic Acidosis, Stroke-like Episodes (MELAS) or Leber's Hereditary Optic Neuropathy-Plus (LHON-Plus)

NCT06792500
View directory record Official record
Conditions
MELAS Syndrome, Lebers Hereditory Optic Neuropathy With Extra Ocular Symptoms (LHON-Plus)
Interventions
Glycerol Tributyrate
Drug
Lead sponsor
George Washington University
Other
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2028
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Oct 5, 2026 · Synced Oct 22, 2026, 2:03 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Exercise Adherence and Cognitive Decline: Phase 2

NCT07127965
View directory record Official record
Conditions
Cognitive Decline
Interventions
Goal Setting and Exercise Intensity Intervention
Behavioral
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
45 Years to 65 Years
Enrollment
226 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
2
States / cities
Aurora, Colorado • Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Oct 22, 2026, 2:03 AM EDT
Active, not recruiting Phase 3 Interventional Accepts healthy volunteers

Preventing Alzheimer's With Cognitive Training

NCT03848312
View directory record Official record
Conditions
Age-related Cognitive Decline, Alzheimer's Disease and Related Dementias
Interventions
Cognitive Training, Computerized Cognitive Stimulation
Behavioral
Lead sponsor
University of South Florida
Other
Eligibility
65 Years and older
Enrollment
7,600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2028
U.S. locations
7
States / cities
Gainesville, Florida • Jacksonville, Florida • Sarasota, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 24, 2026 · Synced Oct 22, 2026, 2:03 AM EDT
Completed Phase 2 Interventional Results available

A Study to Evaluate the Effects of SAGE-718 in Participants With Mild Cognitive Impairment or Mild Dementia Due to Alzheimer's Disease (AD)

NCT05619692
View directory record Official record
Conditions
Mild Cognitive Impairment, Mild Dementia, Alzheimer's Disease
Interventions
SAGE-718, SAGE-718-matching Placebo
Drug
Lead sponsor
Supernus Pharmaceuticals, Inc.
Industry
Eligibility
50 Years to 80 Years
Enrollment
174 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
37
States / cities
Gilbert, Arizona • Phoenix, Arizona • Lafayette, California + 34 more
Source: ClinicalTrials.gov public record
Updated Sep 15, 2025 · Synced Oct 22, 2026, 2:03 AM EDT
Completed Phase 2 Interventional

Exercise Treatment of Mild-Stage Probable Alzheimer's Disease

NCT00403507
View directory record Official record
Conditions
Alzheimer Disease, Memory Disorders, Dementia
Interventions
Participation in a monitored exercise program, Personalized aerobic and strength training.
Behavioral
Lead sponsor
Intermountain Health Care, Inc.
Other
Eligibility
65 Years to 89 Years
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated May 11, 2011 · Synced Oct 22, 2026, 2:03 AM EDT
Completed Phase 2 Interventional Results available

A Phase II Study to Assess the Safety, Tolerability and Efficacy of Xanamem™ in Subjects With Mild Dementia Due to AD (XanADu)

NCT02727699
View directory record Official record
Conditions
Dementia, Alzheimer Type
Interventions
Xanamem™, Placebo (for Xanamem™)
Drug
Lead sponsor
Actinogen Medical
Industry
Eligibility
50 Years and older
Enrollment
185 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
14
States / cities
Tucson, Arizona • Los Angeles, California • Poway, California + 11 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2025 · Synced Oct 22, 2026, 2:03 AM EDT
Completed Early Phase 1 Interventional

Enhanced External Counterpulsation and Its Effects on Vascular Hemodynamics in Cognitively Impaired Patients

NCT01659398
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
External Counterpulsation (EECP)
Device
Lead sponsor
Patrick Moriarty, MD, FACP, FACC
Other
Eligibility
18 Years to 85 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 13, 2016 · Synced Oct 22, 2026, 2:03 AM EDT
Completed Phase 3 Interventional

Multicenter Evaluation of Memory Remediation After TBI With Donepezil

NCT02255799
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jan 15, 2025 · Synced Oct 22, 2026, 2:03 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Olfactory Deficits in Neurologic Disease

NCT05019014
View directory record Official record
Conditions
Alzheimer Disease, Traumatic Brain Injury, Amyotrophic Lateral Sclerosis, Frontotemporal Dementia, Lewy Body Disease, Mild Cognitive Impairment
Interventions
Not listed
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
201 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 24, 2021 · Synced Oct 22, 2026, 2:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Combining tDCS and Neurorehabilitation to Treat Age-related Deficits of Mobility and Cognition: UPfront Walking Study

NCT03122236
View directory record Official record
Conditions
Mobility Limitation, Cognitive Impairment
Interventions
Neurorehabilitation of Standard Walking, Neurorehabilitation of Complex Walking, Sham Transcranial Direct Current Stimulation (Sham tDCS), Active Transcranial Direct Current Stimulation (Active tDCS)
Behavioral · Device
Lead sponsor
University of Florida
Other
Eligibility
65 Years to 110 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
3
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jun 14, 2024 · Synced Oct 22, 2026, 2:03 AM EDT
Completed Phase 4 Interventional

An Open-Label Trial of Memantine for Cognitive Impairment in Patients With Post-Traumatic Stress Disorder

NCT02258828
View directory record Official record
Conditions
PTSD
Interventions
Memantine, Placebo
Drug
Lead sponsor
Sriram Ramaswamy
Federal
Eligibility
19 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated May 22, 2020 · Synced Oct 22, 2026, 2:03 AM EDT
Completed Not applicable Interventional

My Healthy Brain: Preserving and Promoting Brain Health Through Evidence-based Practices

NCT04537728
View directory record Official record
Conditions
Aging, Mild Cognitive Impairment, Dementia, Old Age; Dementia, Cognitive Decline
Interventions
My Healthy Brain Version 2
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
60 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 1, 2022 · Synced Oct 22, 2026, 2:03 AM EDT
Recruiting No phase listed Observational

Determining Whether Multiple Anesthesia Exposures Affect Cognitive Function for Retinoblastoma Patients

NCT03546387
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Oct 22, 2026, 2:03 AM EDT
Terminated Phase 2 Interventional Results available

A Study of Aducanumab in Participants With Mild Cognitive Impairment Due to Alzheimer's Disease or With Mild Alzheimer's Disease Dementia to Evaluate the Safety of Continued Dosing in Participants With Asymptomatic Amyloid-Related Imaging Abnormalities

NCT03639987
View directory record Official record
Conditions
Cognitive Dysfunction, Alzheimer's Disease
Interventions
Aducanumab, Placebo
Drug
Lead sponsor
Biogen
Industry
Eligibility
50 Years to 85 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
22
States / cities
Phoenix, Arizona • Tucson, Arizona • Fullerton, California + 18 more
Source: ClinicalTrials.gov public record
Updated Sep 16, 2021 · Synced Oct 22, 2026, 2:03 AM EDT
Completed Not applicable Interventional

The Influence of Tai Chi Practice on Blood Pressure and Brain Health Among Older Adults With Hypertension (ACTION)

NCT04384263
View directory record Official record
Conditions
Hypertension, Cognitive Decline
Interventions
Tai Chi
Behavioral
Lead sponsor
University of Connecticut
Other
Eligibility
55 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Storrs, Connecticut
Source: ClinicalTrials.gov public record
Updated May 26, 2026 · Synced Oct 22, 2026, 2:03 AM EDT
Recruiting No phase listed Observational

Cognitive Impairment in Colorectal Cancer Patients Receiving Cytotoxic Chemotherapy

NCT05014399
View directory record Official record
Conditions
Neoplasm, Colorectal, Cognitive Impairment, Cognitive Dysfunction, Cognitive Change, Chemo-brain, Chemo Fog, Chemotherapy Effect, Cognitive Decline
Interventions
Not listed
Lead sponsor
Joseph McCollom
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2031
U.S. locations
1
States / cities
Fort Wayne, Indiana
Source: ClinicalTrials.gov public record
Updated Aug 14, 2026 · Synced Oct 22, 2026, 2:03 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Multidisciplinary Intervention for Mild Cognitive Impairment

NCT02943187
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
Cognitive training, Nutrition
Behavioral · Dietary Supplement
Lead sponsor
Gibson Institute of Cognitive Research
Industry
Eligibility
50 Years to 75 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2022
U.S. locations
1
States / cities
Colorado Springs, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 27, 2021 · Synced Oct 22, 2026, 2:03 AM EDT
Completed Not applicable Interventional

A Health Game Intervention for Cancer and Post-ICU Patients Suffering From Acute Cognitive Impairment

NCT07596940
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
VR cognitive training platform
Device
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Oct 22, 2026, 2:03 AM EDT
Completed Phase 3 Interventional Results available

Coenzyme Q10 Phase III Trial in Gulf War Illness

NCT02865460
View directory record Official record
Conditions
Gulf War Illness, Chronic Fatigue, Ubiquinol, Coenzyme Q10
Interventions
Ubiquinol, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
35 Years to 70 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
4
States / cities
Miami, Florida • Boston, Massachusetts • Minneapolis, Minnesota + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 15, 2023 · Synced Oct 22, 2026, 2:03 AM EDT
Recruiting Not applicable Interventional

Targeting Processing Speed Deficits to Improve Social Functioning and Lower Psychosis Risk

NCT05131035
View directory record Official record
Conditions
Psychosis, Prodromal Schizophrenia, Prodromal Symptoms
Interventions
SCORES (Specific COgnitive Remediation with Support)
Behavioral
Lead sponsor
Northwell Health
Other
Eligibility
14 Years to 20 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Glen Oaks, New York
Source: ClinicalTrials.gov public record
Updated Nov 24, 2025 · Synced Oct 22, 2026, 2:03 AM EDT
Terminated Phase 2 Interventional

Safety and Efficacy of OMS643762 in Subjects With Huntington's Disease

NCT02074410
View directory record Official record
Conditions
Huntington's Disease
Interventions
OMS643762, Placebo
Drug
Lead sponsor
Omeros Corporation
Industry
Eligibility
18 Years to 65 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
9
States / cities
San Diego, California • Englewood, Colorado • Gainesville, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 22, 2018 · Synced Oct 22, 2026, 2:03 AM EDT