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ClinicalTrials.gov public records Last synced Nov 2, 2026, 7:27 AM EST

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Showing 1489–1512 of 1,884 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Impaired Cognition Clear all
Completed No phase listed Observational Accepts healthy volunteers

Mild Cognitive Impairment in Breast Cancer Patients

NCT01949376
View directory record Official record
Conditions
Breast Cancer, Cognitive Impairment
Interventions
Not listed
Lead sponsor
Northwestern University
Other
Eligibility
40 Years to 70 Years · Female only
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 3, 2020 · Synced Nov 2, 2026, 7:27 AM EST
Completed Phase 2 Interventional Results available

A Study of TAK-071 in People With Parkinson Disease

NCT04334317
View directory record Official record
Conditions
Parkinson Disease, Healthy Participants
Interventions
TAK-071, Placebo
Drug
Lead sponsor
Takeda
Industry
Eligibility
40 Years to 85 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
21
States / cities
Garden Grove, California • Irvine, California • Los Angeles, California + 18 more
Source: ClinicalTrials.gov public record
Updated May 14, 2024 · Synced Nov 2, 2026, 7:27 AM EST
Completed No phase listed Observational Accepts healthy volunteers

Endoprosthesis Metal Toxicity Study

NCT04755140
View directory record Official record
Conditions
Bone Tumor, Cancer of Bone, Heart Diseases, Cognitive Impairment, Cognitive Decline, Chemotherapy Effect, Memory Problem
Interventions
Questionnaires, Interviews, Blood Test, Echocardiogram
Behavioral · Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 100 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 16, 2024 · Synced Nov 2, 2026, 7:27 AM EST
Completed Phase 3 Interventional

Donepezil and Vitamin E to Prevent Side Effects Caused By Radiation Therapy to the Head in Patients Receiving Treatment for Small Cell Lung Cancer

NCT00006349
View directory record Official record
Conditions
Cognitive/Functional Effects, Delirium, Depression, Lung Cancer, Radiation Toxicity
Interventions
vitamin E, donepezil hydrochloride, placebo
Dietary Supplement · Drug · Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2007
U.S. locations
15
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Peoria, Illinois + 12 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2016 · Synced Nov 2, 2026, 7:27 AM EST
Not listed Phase 2 Interventional Accepts healthy volunteers

Evaluation of [18F]APN-1607 PET Uptake in Alzheimer's Disease Patients Compared With Healthy Subjects

NCT04141150
View directory record Official record
Conditions
Alzheimer's Disease, Mild Cognitive Impairment Due to Alzheimer's Disease, Healthy Volunteers
Interventions
[18F]APN-1607
Drug
Lead sponsor
APRINOIA Therapeutics, LLC
Industry
Eligibility
50 Years to 85 Years
Enrollment
130 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
3
States / cities
New Haven, Connecticut • Mount Arlington, New Jersey • New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 15, 2023 · Synced Nov 2, 2026, 7:27 AM EST
Active, not recruiting Phase 4 Interventional

Effects of Brain Beta-Amyloid on Postoperative Cognition

NCT01606488
View directory record Official record
Conditions
Postoperative Cognitive Dysfunction
Interventions
Florbetapir F 18 (18F-AV-45), no intervention
Drug · Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
65 Years and older
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 1, 2025 · Synced Nov 2, 2026, 7:27 AM EST
Withdrawn Not applicable Interventional Accepts healthy volunteers

Circle Game Collaborative--Freddie the Frog

NCT05522946
View directory record Official record
Conditions
Cognitive Impairment, Physical Disability
Interventions
Gameplay between parent and child or adolescent with or without a disability
Other
Lead sponsor
Ohio State University
Other
Eligibility
5 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 15, 2023 · Synced Nov 2, 2026, 7:27 AM EST
Completed No phase listed Observational

The Role Of Cognitive Impairment In The Use Of The Diskus Inhaler

NCT00891059
View directory record Official record
Conditions
Cognitive Impairment
Interventions
Not listed
Lead sponsor
Synergy Health Solutions
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
2
States / cities
Brooksville, Florida • Centerville, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 23, 2010 · Synced Nov 2, 2026, 7:27 AM EST
Active, not recruiting Phase 2 Interventional

A Trial to Evaluate the Safety and Efficacy of Benfotiamine in Patients With Early Alzheimer's Disease (BenfoTeam)

NCT06223360
View directory record Official record
Conditions
Alzheimer Disease
Interventions
Low Dose Benfotiamine, High Dose Benfotiamine, Placebo
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
50 Years to 89 Years
Enrollment
406 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
47
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Sun City, Arizona + 35 more
Source: ClinicalTrials.gov public record
Updated Sep 17, 2026 · Synced Nov 2, 2026, 7:27 AM EST
Recruiting Not applicable Interventional

Home-Based Brain Stimulation for Motoric Cognitive Risk Syndrome

NCT06821568
View directory record Official record
Conditions
Alzheimer Disease and Related Dementias, Cognition, Mobility Disability
Interventions
Personalized Transcranial Direct Current Stimulation (tDCS), Active-Sham
Other
Lead sponsor
Hebrew SeniorLife
Other
Eligibility
65 Years to 90 Years
Enrollment
128 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Roslindale, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Nov 2, 2026, 7:27 AM EST
Completed Not applicable Interventional

Cognitive Deficits in Major Depressive Disorder and Bipolar Disorder, Depressed Type: Prevalence and Improvement With Treatment of Depressive Symptoms

NCT00844974
View directory record Official record
Conditions
Major Depression, Bipolar Disorder
Interventions
Prevalence
Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 18, 2013 · Synced Nov 2, 2026, 7:27 AM EST
Completed Phase 2 Interventional

The LUCINDA Trial: LeUprolide Plus Cholinesterase Inhibition to Reduce Neurological Decline in Alzheimer's

NCT03649724
View directory record Official record
Conditions
Alzheimer Disease, Mild Cognitive Impairment
Interventions
Placebo, Eligard 22.5Mg Suspension for Injection
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
60 Years to 120 Years · Female only
Enrollment
86 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
3
States / cities
Boca Raton, Florida • New York, New York • Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Nov 2, 2026, 7:27 AM EST
Completed Not applicable Interventional Results available

Cognitive Rehabilitation Therapy for Mild Cognitive Impairment

NCT03225482
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
Motivationally Enhanced Compensatory Cognitive Training, Goal-focused Supportive Contact
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
55 Years and older
Enrollment
193 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
2
States / cities
San Diego, California • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 11, 2025 · Synced Nov 2, 2026, 7:27 AM EST
Completed No phase listed Observational

IMPAACT 2015 - Evaluation of the HIV-1 Reservoir in the Central Nervous System of Perinatally-Infected Youth and Young Adults With Cognitive Impairment

NCT03416790
View directory record Official record
Conditions
HIV-1-infection
Interventions
Not listed
Lead sponsor
International Maternal Pediatric Adolescent AIDS Clinical Trials Group
Network
Eligibility
13 Years to 24 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
11
States / cities
Los Angeles, California • San Diego, California • Aurora, Colorado + 6 more
Source: ClinicalTrials.gov public record
Updated Jul 8, 2020 · Synced Nov 2, 2026, 7:27 AM EST
Terminated Not applicable Interventional

Dental Carotid Cognitive Study

NCT03755362
View directory record Official record
Conditions
Carotid Stenosis, Mild Cognitive Impairment, Periodontitis
Interventions
Standard Treatment, Intensive Treatment
Procedure
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
60 Years to 100 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 18, 2026 · Synced Nov 2, 2026, 7:27 AM EST
Completed No phase listed Observational Accepts healthy volunteers

Cross-Cultural Use of Performance-Based Functional Assessment in Alzheimer's Disease

NCT03081546
View directory record Official record
Conditions
Mild Cognitive Impairment, Healthy Controls
Interventions
Not listed
Lead sponsor
University of Colorado, Denver
Other
Eligibility
55 Years to 85 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Aug 9, 2021 · Synced Nov 2, 2026, 7:27 AM EST
Withdrawn Phase 2 Interventional

Patients With Patent Foramen Ovale and Endocardial Device Leads on Apixaban for Prevention of Paradoxical Emboli

NCT02378623
View directory record Official record
Conditions
Patent Foramen Ovale, Cardiac Implantable Electronic Device
Interventions
Apixaban, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 85 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 16, 2018 · Synced Nov 2, 2026, 7:27 AM EST
Recruiting Not applicable Interventional

High-Intensity Exercise to Combat Vascular and Cognitive Dysfunction in Adults With HIV

NCT05965518
View directory record Official record
Conditions
HIV, Arterial Stiffness, Cognitive Dysfunction
Interventions
High-Intensity Interval Training, Continuous Moderate Exercise
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
50 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Nov 2, 2026, 7:27 AM EST
Active, not recruiting Not applicable Interventional

Impact of Intensive Computerized Cognitive Training

NCT06130735
View directory record Official record
Conditions
Acquired Brain Injury, Mild Cognitive Impairment, Mild Neurocognitive Disorder
Interventions
Cognitive Computerized Training
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
25 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 1, 2026 · Synced Nov 2, 2026, 7:27 AM EST
Completed No phase listed Observational

Characteristics and Outcomes of a Capacity-to-Consent Assessment Service

NCT03258606
View directory record Official record
Conditions
Cognitive Dysfunction
Interventions
Not listed
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
7 Years and older
Enrollment
1,098 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 24, 2023 · Synced Nov 2, 2026, 7:27 AM EST
Enrolling by invitation No phase listed Observational

Under-Represented Communities Diagnosed With SCD or MCI Through Tele-Cog

NCT06542458
View directory record Official record
Conditions
Mild Cognitive Impairment, Subjective Cognitive Decline
Interventions
Assessments, Neuroimaging volumetric measures, Biofluid samples
Behavioral · Other
Lead sponsor
Ohio State University
Other
Eligibility
50 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2032
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Nov 2, 2026, 7:27 AM EST
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Body Temperature in Persons With Tetraplegia When Exposed to Cold

NCT01822535
View directory record Official record
Conditions
Tetraplegia, Hypothermia, Mild Cognitive Impairment
Interventions
Midodrine hydrochloride
Drug
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
2011 – 2015
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Mar 4, 2016 · Synced Nov 2, 2026, 7:27 AM EST
Completed Phase 1Phase 2 Interventional Results available

A Safety and Dose Ranging Study of Idursulfase (Intrathecal) Administration Via an Intrathecal Drug Delivery Device in Pediatric Patients With Hunter Syndrome Who Have Central Nervous System Involvement and Are Receiving Treatment With Elaprase®

NCT00920647
View directory record Official record
Conditions
Hunter Syndrome
Interventions
Control, Idursulfase IT (1 mg), Idursulfase IT (10 mg), Idursulfase IT (30 mg)
Other · Drug
Lead sponsor
Shire
Industry
Eligibility
3 Years to 18 Years · Male only
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 28, 2021 · Synced Nov 2, 2026, 7:27 AM EST
Completed Not applicable Interventional Accepts healthy volunteers Results available

Daily Stress and Vascular Function in Midlife as a Risk Factor for Cognitive Decline

NCT06466655
View directory record Official record
Conditions
Middle-aged Adults, Major Depressive Disorder
Interventions
MitoTempol, Lactated Ringer's (control)
Drug
Lead sponsor
University of Delaware
Other
Eligibility
40 Years to 55 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated Oct 2, 2025 · Synced Nov 2, 2026, 7:27 AM EST