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ClinicalTrials.gov public records Last synced Nov 4, 2026, 10:23 AM EST

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Showing 1729–1752 of 1,885 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Impaired Cognition Clear all
Completed No phase listed Observational Accepts healthy volunteers

A Study To Assess The Feasibility Of Indivi Mobile Application In Monitoring Cognitive Performance In Aging Population

NCT07174869
View directory record Official record
Conditions
Mild Cognitive Impairment (MCI), Mild Alzheimer Disease
Interventions
Not listed
Lead sponsor
Indivi AG
Industry
Eligibility
50 Years to 90 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Nov 4, 2026, 10:23 AM EST
Terminated Not applicable Interventional Results available

Napping, Sleep, Cognitive Decline and Risk of Alzheimer's Disease

NCT03256539
View directory record Official record
Conditions
Sleep, Alzheimer Disease, Cognitive Impairment, Aging, CBT
Interventions
Sleep intervention, Placebo intervention
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
65 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 14, 2025 · Synced Nov 4, 2026, 10:23 AM EST
Completed Phase 2 Interventional

Effects of Mental Stimulation in Patients With Mild Cognitive Impairment

NCT01212692
View directory record Official record
Conditions
Mild Cognitive Impairment (MCI)
Interventions
mentally stimulating activities
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
50 Years to 100 Years
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 9, 2015 · Synced Nov 4, 2026, 10:23 AM EST
Completed Phase 3 Interventional Results available

Hormone and Information Processing Study

NCT00539305
View directory record Official record
Conditions
Mild Cognitive Impairment, Alzheimer's Disease
Interventions
testosterone gel, placebo gel
Drug
Lead sponsor
University of Washington
Other
Eligibility
60 Years to 90 Years · Male only
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 14, 2014 · Synced Nov 4, 2026, 10:23 AM EST
Completed Not applicable Interventional Accepts healthy volunteers

The Feasibility, Safety and Tolerability of VR-based Audiovisual Stimulation

NCT06234930
View directory record Official record
Conditions
Healthy Aging, Alzheimer's Disease, Mild Cognitive Impairment
Interventions
Audiovisual stimulation VR system
Device
Lead sponsor
Clarity Health Technologies, Inc
Industry
Eligibility
50 Years to 90 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
2
States / cities
Portola Valley, California • Leesburg, Florida
Source: ClinicalTrials.gov public record
Updated Oct 26, 2026 · Synced Nov 4, 2026, 10:23 AM EST
Completed Not applicable Interventional

An Investigational Scan (7 Tesla MRI) in Diagnosing Cognitive Impairment in Patients With Non-Metastatic Prostate Cancer

NCT04318028
View directory record Official record
Conditions
Non-Metastatic Prostate Carcinoma, Stage I Prostate Cancer AJCC v8, Stage II Prostate Cancer AJCC v8, Stage IIA Prostate Cancer AJCC v8, Stage IIB Prostate Cancer AJCC v8, Stage IIC Prostate Cancer AJCC v8, Stage III Prostate Cancer AJCC v8, Stage IIIA Prostate Cancer AJCC v8, Stage IIIB Prostate Cancer AJCC v8, Stage IIIC Prostate Cancer AJCC v8
Interventions
7 Tesla Magnetic Resonance Imaging
Procedure
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older · Male only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 17, 2025 · Synced Nov 4, 2026, 10:23 AM EST
Completed Phase 4 Interventional Results available

Memantine (10mg BID) for the Frontal and Temporal Subtypes of Frontotemporal Dementia

NCT00545974
View directory record Official record
Conditions
Frontal Lobe Dementia, Frontotemporal Lobe Dementia, Semantic Dementia
Interventions
memantine, Placebo pill
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
40 Years to 80 Years
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
9
States / cities
Los Angeles, California • San Francisco, California • Jacksonville, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Nov 17, 2020 · Synced Nov 4, 2026, 10:23 AM EST
Terminated Phase 2 Interventional Results available

A Pilot Clinical Trial of Exendin-4 in Alzheimer's Disease

NCT01255163
View directory record Official record
Conditions
Alzheimer's Disease, Mild Cognitive Impairment
Interventions
Exendin-4 SC, Placebo SC
Drug
Lead sponsor
National Institute on Aging (NIA)
NIH
Eligibility
60 Years and older
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 22, 2018 · Synced Nov 4, 2026, 10:23 AM EST
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 Nov 4, 2026, 10:23 AM EST
Completed Not applicable Interventional

An Investigation of Chemotherapy Induced Cognitive Impairments in Breast Cancer Survivors

NCT02515487
View directory record Official record
Conditions
Breast Cancer
Interventions
Brain Fitness Program (BFP)
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 70 Years · Female only
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 6, 2018 · Synced Nov 4, 2026, 10:23 AM EST
Recruiting Phase 1 Interventional Accepts healthy volunteers

PET Imaging of Phosphodiesterase-4 (PDE4) in Volunteers With Alzheimer Disease (AD) or Mild Cognitive Impairment (MCI)

NCT07169630
View directory record Official record
Conditions
Alzheimer s Disease, Mild Cognitive Impairment, Healthy
Interventions
18F-PF974, 18F-florbetaben
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
50 Years to 100 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 4, 2026 · Synced Nov 4, 2026, 10:23 AM EST
Recruiting Not applicable Interventional Accepts healthy volunteers

TMS for Cognitive Decline in Aging and Preclinical AD

NCT06956300
View directory record Official record
Conditions
Prodromal Alzheimer's Disease, Preclinical Alzheimer's Disease, Healthy Aging, Cognitive Decline
Interventions
Active rTMS, Sham rTMS
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
40 Years to 99 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 20, 2026 · Synced Nov 4, 2026, 10:23 AM EST
Terminated Phase 2 Interventional

Efficacy and Safety of AVE1625 as a Co-treatment With Antipsychotic Therapy in Schizophrenia

NCT00439634
View directory record Official record
Conditions
Schizophrenia
Interventions
AVE1625, placebo
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years to 65 Years
Enrollment
873 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Bridgewater, New Jersey
Source: ClinicalTrials.gov public record
Updated May 18, 2016 · Synced Nov 4, 2026, 10:23 AM EST
Recruiting Not applicable Interventional

Paper-Based and Smartphone-Based Memory Supports

NCT06444841
View directory record Official record
Conditions
Alzheimer Disease, Dementia, Mild, Mild Cognitive Impairment
Interventions
Digital - Google Calendar, Paper-based - Memory Support System
Behavioral
Lead sponsor
Baylor University
Other
Eligibility
50 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
3
States / cities
Austin, Texas • Temple, Texas • Waco, Texas
Source: ClinicalTrials.gov public record
Updated Jul 9, 2024 · Synced Nov 4, 2026, 10:23 AM EST
Completed Not applicable Interventional Accepts healthy volunteers Results available

ALIGN: Aligning Medications With What Matters Most (Demonstration)

NCT06335953
View directory record Official record
Conditions
Polypharmacy, Alzheimer's Disease and Related Dementias, Mild Cognitive Impairment
Interventions
Pharmacist-led deprescribing intervention
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
65 Years and older
Enrollment
474 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Nov 4, 2026, 10:23 AM EST
Completed No phase listed Observational Accepts healthy volunteers

Peri-Anesthetic Imaging of Cognitive Dysfunction

NCT01322672
View directory record Official record
Conditions
Postoperative Cognitive Dysfunction, Delirium, Dementia, Neurotoxicity
Interventions
Not listed
Lead sponsor
Vanderbilt University
Other
Eligibility
65 Years to 95 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Feb 5, 2019 · Synced Nov 4, 2026, 10:23 AM EST
Completed Not applicable Interventional Results available

Technology and Family Thriving Study

NCT05150990
View directory record Official record
Conditions
Alzheimer Disease, Dementia, Caregiver Burnout, Quality of Life, Mental Health Wellness 1, Loneliness, Family Relationship
Interventions
Virtual Reality, Video Chat
Behavioral
Lead sponsor
University of California, Santa Barbara
Other
Eligibility
18 Years and older
Enrollment
186 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
27
States / cities
Calabasas, California • Camarillo, California • Goleta, California + 16 more
Source: ClinicalTrials.gov public record
Updated Jul 29, 2026 · Synced Nov 4, 2026, 10:23 AM EST
Completed No phase listed Observational Accepts healthy volunteers

Study To Analyze Memory/Thinking Problems In Older Adults After Surgery

NCT01786577
View directory record Official record
Conditions
Post-Operative Cognitive Decline in Older Adults
Interventions
Magnetic Resonance Imaging, Cognitive assessment testing
Other · Behavioral
Lead sponsor
University of Florida
Other
Eligibility
60 Years and older
Enrollment
147 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jul 8, 2019 · Synced Nov 4, 2026, 10:23 AM EST
Completed Not applicable Interventional Results available

A Policy Relevant US Trauma Care System Pragmatic Trial for PTSD and Comorbidity

NCT02655354
View directory record Official record
Conditions
Posttraumatic Stress Disorder, Depression, Alcohol-Related Disorders, Suicidal Ideation, Substance-Related Disorders, Mild Cognitive Impairment, Quality of Life, Pain, Wounds and Injury, Brain Injuries, Chronic Disease
Interventions
Motivational Interviewing, Cognitive Behavioral Therapy Elements, Care Management, Fluoxetine, Fluvoxamine, Paroxetine, Sertraline, Citalopram, Venlafaxine, Duloxetine, Mirtazapine, Diphenhydramine, Trazodone, Prazosin
Behavioral · Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
635 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
24
States / cities
Scottsdale, Arizona • Beverly Hills, California • Sacramento, California + 20 more
Source: ClinicalTrials.gov public record
Updated Jul 2, 2021 · Synced Nov 4, 2026, 10:23 AM EST
Not yet recruiting No phase listed Observational

Stanford-Lucidify EEG Delirium Study

NCT06999967
View directory record Official record
Conditions
Delirium, Cognitive Dysfunction
Interventions
Electroencephalogram (EEG)
Diagnostic Test
Lead sponsor
Stanford University
Other
Eligibility
55 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated May 31, 2025 · Synced Nov 4, 2026, 10:23 AM EST
Active, not recruiting Early Phase 1 Interventional

Multi-Center Development of a Novel Diagnostic Test for Alzheimer's Disease

NCT03560960
View directory record Official record
Conditions
Alzheimer Disease, Mild Cognitive Impairment
Interventions
Pramlintide challenge test
Drug
Lead sponsor
Boston University
Other
Eligibility
60 Years to 90 Years
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
3
States / cities
Indianapolis, Indiana • Boston, Massachusetts • Jamaica Plain, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Nov 4, 2026, 10:23 AM EST
Completed Phase 1 Interventional

A Study to Evaluate the Safety, Tolerability, and Blood Levels of ACU193 in Participants With MCI or Mild AD

NCT04931459
View directory record Official record
Conditions
Alzheimer Disease
Interventions
ACU193, Placebo
Drug
Lead sponsor
Acumen Pharmaceuticals
Industry
Eligibility
55 Years to 90 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
17
States / cities
Scottsdale, Arizona • Anaheim, California • Newport Beach, California + 14 more
Source: ClinicalTrials.gov public record
Updated Jul 19, 2023 · Synced Nov 4, 2026, 10:23 AM EST
Completed Phase 3 Interventional Results available

Phase 3 Randomized Placebo Controlled Clinical Trial of Donepezil

NCT02822573
View directory record Official record
Conditions
Cognitive Dysfunction, Memory Impairment
Interventions
Donepezil 5 mg, Placebo
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 75 Years · Female only
Enrollment
276 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
278
States / cities
Anaheim, California • Antioch, California • Baldwin Park, California + 206 more
Source: ClinicalTrials.gov public record
Updated Sep 13, 2023 · Synced Nov 4, 2026, 10:23 AM EST
Completed Not applicable Interventional

Impact of Covid-19 on Frequent Social Interaction Through Communication Technologies in the Cognitive Status of Socially-isolated Older Adults

NCT04480112
View directory record Official record
Conditions
Memory Disorders, Alzheimer Disease, Mild Cognitive Impairment
Interventions
Technology based social interactions, No research related technology based social interactions
Behavioral · Other
Lead sponsor
Boston University
Other
Eligibility
Not listed
Enrollment
196 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 30, 2021 · Synced Nov 4, 2026, 10:23 AM EST