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ClinicalTrials.gov public records Last synced Oct 21, 2026, 5:45 PM EDT

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

Showing 97–120 of 1,883 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Impaired Cognition Clear all
Completed No phase listed Observational Accepts healthy volunteers

Discovery of Novel Biomarkers That Will Lead to the Early Detection of Alzheimer's Disease

NCT03136679
View directory record Official record
Conditions
Mild Cognitive Impairment, Alzheimer Disease
Interventions
Not listed
Lead sponsor
Baylor Research Institute
Other
Eligibility
40 Years and older
Enrollment
95 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2021
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jan 26, 2026 · Synced Oct 21, 2026, 5:45 PM EDT
Completed No phase listed Observational

Safety Follow-up Study for Subjects With Agitation Associated With Dementia of the Alzheimer's Type Who Previously Participated in a Double-blind Trial of Brexpiprazole or Placebo

NCT02192554
View directory record Official record
Conditions
Agitation Associated With Alzheimer's Disease, Alzheimer's Type, Mental Disorder, Nervous System Diseases
Interventions
Not listed
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
Not listed
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
28
States / cities
Tuscaloosa, Alabama • Costa Mesa, California • Lakewood, California + 21 more
Source: ClinicalTrials.gov public record
Updated Apr 30, 2018 · Synced Oct 21, 2026, 5:45 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Older Breast Cancer Patients: Risk for Cognitive Decline

NCT03451383
View directory record Official record
Conditions
Cancer, Breast, Age-related Cognitive Decline, Cognitive Decline
Interventions
Not listed
Lead sponsor
Georgetown University
Other
Eligibility
60 Years to 105 Years · Female only
Enrollment
1,700 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2027
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Sep 28, 2026 · Synced Oct 21, 2026, 5:45 PM EDT
Completed Not applicable Interventional

The Active Mind Study

NCT03289546
View directory record Official record
Conditions
Cognitive Impairment, Cardiovascular Risk Factor
Interventions
Mindfulness training, Aerobic training
Behavioral
Lead sponsor
The Miriam Hospital
Other
Eligibility
55 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Feb 20, 2019 · Synced Oct 21, 2026, 5:45 PM EDT
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 Oct 21, 2026, 5:45 PM EDT
Recruiting Phase 2 Interventional

Repurposing Siponimod for Alzheimer's Disease

NCT06639282
View directory record Official record
Conditions
Alzheimer Disease, Mild Alzheimer Disease, MCI With Increased Risk for Alzheimer Disease, Cognitive Impairment, Mild
Interventions
Siponimod, Placebo
Drug
Lead sponsor
St. Joseph's Hospital and Medical Center, Phoenix
Other
Eligibility
50 Years to 85 Years
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 4, 2026 · Synced Oct 21, 2026, 5:45 PM EDT
Completed Not applicable Interventional

Cognitive Training in Mild Cognitive Impairment

NCT04899089
View directory record Official record
Conditions
Insomnia, Mild Cognitive Impairment
Interventions
Cognitive Training, Trivia Training
Behavioral
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
60 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 30, 2023 · Synced Oct 21, 2026, 5:45 PM EDT
Completed Not applicable Interventional

A Technology-Driven Intervention to Improve Early Detection and Management of Cognitive Impairment

NCT05723523
View directory record Official record
Conditions
Dementia, Cognitive Impairment
Interventions
CI-CDS
Other
Lead sponsor
HealthPartners Institute
Other
Eligibility
65 Years and older
Enrollment
3,230 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
2
States / cities
Bloomington, Minnesota • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 4, 2025 · Synced Oct 21, 2026, 5:45 PM EDT
Not listed Not applicable Interventional

Can Lifestyle Changes Reverse Early-Stage Alzheimer's Disease

NCT04606420
View directory record Official record
Conditions
Alzheimer Disease
Interventions
Lifestyle medicine
Behavioral
Lead sponsor
Preventive Medicine Research Institute
Other
Eligibility
45 Years to 90 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
4
States / cities
San Diego, California • Sausalito, California • Boston, Massachusetts + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 15, 2022 · Synced Oct 21, 2026, 5:45 PM EDT
Completed Not applicable Interventional

Disclosing Dementia Risk Based on Plasma Phosphorylated Tau

NCT05377060
View directory record Official record
Conditions
Alzheimer Disease, Mild Cognitive Impairment
Interventions
Plasma p-tau risk disclosure, Standard risk disclosure
Behavioral
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
60 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Nashville, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 29, 2025 · Synced Oct 21, 2026, 5:45 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Leveraging Social Networks to Improve Sleep and Mindfulness Among Older Adults in Residential Housing Facilities

NCT06989619
View directory record Official record
Conditions
Aging, Cognitive Impairment, Sleep
Interventions
Sleep health and mindfulness intervention
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
55 Years and older
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 25, 2025 · Synced Oct 21, 2026, 5:45 PM EDT
Completed Phase 1 Interventional

Impact of Grape Consumption on Brain Metabolism and Cognitive Function

NCT01573611
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
Grape Powder, Placebo Powder
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
65 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Dec 4, 2014 · Synced Oct 21, 2026, 5:45 PM EDT
Completed Not applicable Interventional Results available

Effect of Blueberry Supplementation on Alzheimer's Biomarkers

NCT05172128
View directory record Official record
Conditions
Mild Cognitive Impairment, Alzheimer Disease
Interventions
lyophilized blueberry supplement
Dietary Supplement
Lead sponsor
Duke University
Other
Eligibility
55 Years to 85 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 21, 2026, 5:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nutrition for Brain and Body Health (BB-Health) Feasibility Trial

NCT05542199
View directory record Official record
Conditions
Cognition, Obesity
Interventions
Multicomponent nutrition supplement (MCNS), Behavioral weight loss program
Other · Behavioral
Lead sponsor
Tufts University
Other
Eligibility
55 Years to 85 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 6, 2025 · Synced Oct 21, 2026, 5:45 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Adult Broad Learning Experiment (ABLE): Feasibility Study

NCT03438136
View directory record Official record
Conditions
Cognitive Decline
Interventions
Adult Broad Learning Experiment (ABLE)
Behavioral
Lead sponsor
University of California, Riverside
Other
Eligibility
55 Years and older
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Riverside, California
Source: ClinicalTrials.gov public record
Updated Feb 19, 2018 · Synced Oct 21, 2026, 5:45 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 24, 2020 · Synced Oct 21, 2026, 5:45 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Patient-Centered NeuroRehabilitation (PCN)

NCT03036319
View directory record Official record
Conditions
Cognitive Deficit
Interventions
Active tDCS, Sham tDCS, Cognitively based intervention, Active tACS, Sham tACS, Active tRNS, Sham tRNS
Device · Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
50 Years and older
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2027
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 14, 2026 · Synced Oct 21, 2026, 5:45 PM EDT
Active, not recruiting Not applicable Interventional

Mental And Speech Developmental Delay Autism Spectrum-Type Behavioral Disorder

NCT07670000
View directory record Official record
Conditions
Autism Spectrum Disorder (ASD), Central Auditory Processing Disorder, Nervous System Disorder, Neurological Disorder
Interventions
Audio fairy tales
Behavioral
Lead sponsor
Natalia Poluektova
Other
Eligibility
3 Years to 70 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 2, 2026 · Synced Oct 21, 2026, 5:45 PM EDT
Active, not recruiting Not applicable Interventional

Anticipating Decline and Providing Therapy

NCT06182995
View directory record Official record
Conditions
Cognitive Impairment, Dementia, Post ICU Syndrome, Critical Illness, Cognitive Impairment, Mild
Interventions
Usual Care post-Intensive Care Unit (ICU), Anticipating Decline and Providing Therapy (ADAPT)
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
60 Years and older
Enrollment
109 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 5, 2026 · Synced Oct 21, 2026, 5:45 PM EDT
Terminated Not applicable Interventional Results available

Extension Study of Intrathecal Enzyme Replacement for Cognitive Decline in MPS I

NCT02232477
View directory record Official record
Conditions
Mucopolysaccharidosis I, Cognitive Decline
Interventions
Intrathecal recombinant human alpha iduronidase
Drug
Lead sponsor
agnes chen
Other
Eligibility
6 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Oct 31, 2023 · Synced Oct 21, 2026, 5:45 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

A Study of Brain Aging in Vietnam War Veterans

NCT01687153
View directory record Official record
Conditions
Traumatic Brain Injury, Post Traumatic Stress Disorder, Alzheimer's Disease, Mild Cognitive Impairment
Interventions
Not listed
Lead sponsor
University of Southern California
Other
Eligibility
50 Years to 90 Years
Enrollment
289 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2021
U.S. locations
19
States / cities
Sun City, Arizona • Irvine, California • La Jolla, California + 14 more
Source: ClinicalTrials.gov public record
Updated Nov 29, 2021 · Synced Oct 21, 2026, 5:45 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

An Innovative Platform for Objective Monitoring of Instrumental Activities of Daily Living

NCT05703490
View directory record Official record
Conditions
Dementia, Cognitive Impairment, Alzheimer Disease
Interventions
IADLSys system
Diagnostic Test
Lead sponsor
Bijan Najafi, PhD
Other
Eligibility
50 Years to 95 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 13, 2025 · Synced Oct 21, 2026, 5:45 PM EDT
Completed Not applicable Interventional Results available

Study of the Effects of Cerefolin NAC on Inflammation Blood Markers in Older Individuals With Memory Complaints

NCT00597376
View directory record Official record
Conditions
Subjective Memory Loss in Older Persons
Interventions
Cerefolin NAC (a medical food), Cerefolin NAC placebo
Other
Lead sponsor
Rush University Medical Center
Other
Eligibility
60 Years and older
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 23, 2013 · Synced Oct 21, 2026, 5:45 PM EDT
Recruiting Not applicable Interventional

Cognitive Rehabilitation for Veterans With MDD-related Cognitive Functioning Deficits

NCT06728774
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jun 6, 2025 · Synced Oct 21, 2026, 5:45 PM EDT