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ClinicalTrials.gov public records Last synced Oct 19, 2026, 4:43 AM EDT

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Showing 193–216 of 1,062 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Cognitive Functioning Clear all
Active, not recruiting Not applicable Interventional

High Frequency Light and Sound Stimulation to Improve Brain Functions in Alzheimer's Disease

NCT04042922
View directory record Official record
Conditions
Alzheimer Disease
Interventions
GENUS device (Active Settings), GENUS device (Sham Settings)
Device
Lead sponsor
Massachusetts Institute of Technology
Other
Eligibility
50 Years to 100 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 1, 2024 · Synced Oct 19, 2026, 4:43 AM EDT
Terminated Not applicable Interventional Results available

Interventions Made to Preserve Cognitive Function

NCT03616535
View directory record Official record
Conditions
ESRD
Interventions
Cognitive training, Exercise training, Combined cognitive and exercise training
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
2
States / cities
Baltimore, Maryland • New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 16, 2025 · Synced Oct 19, 2026, 4:43 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Sensory Enrichment for Older Adults

NCT03914989
View directory record Official record
Conditions
Cognitive Function
Interventions
olfactory enrichment (essential oils)
Other
Lead sponsor
University of California, Irvine
Other
Eligibility
60 Years to 85 Years
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated Mar 24, 2023 · Synced Oct 19, 2026, 4:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Radicle Revive 24: A Study of Health and Wellness Products on Menopausal Health and Related Health Outcomes

NCT06749288
View directory record Official record
Conditions
Menopause, Sleep Disturbance, Anxiety, Depression, Cognitive Function, Fatigue, Libido
Interventions
Radicle Revive Placebo Control Form 4.1, Radicle Revive Active Study Product 4.1 Usage
Dietary Supplement
Lead sponsor
Radicle Science
Industry
Eligibility
21 Years to 105 Years · Female only
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Del Mar, California
Source: ClinicalTrials.gov public record
Updated Jul 4, 2025 · Synced Oct 19, 2026, 4:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Short Term Ketone Supplementation and Cardiometabolic Health

NCT04236388
View directory record Official record
Conditions
Cardiovascular Risk Factor
Interventions
Ketone drink, Placebo drink
Dietary Supplement
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
50 Years to 75 Years
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Blacksburg, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 27, 2026 · Synced Oct 19, 2026, 4:43 AM EDT
Terminated No phase listed Observational

Older Patients With Newly Diagnosed Breast Cancer or Colon Cancer

NCT00740961
View directory record Official record
Conditions
Breast Cancer, Cognitive/Functional Effects, Colorectal Cancer, Psychosocial Effects of Cancer and Its Treatment
Interventions
compliance monitoring, systemic chemotherapy, medical chart review, study of socioeconomic and demographic variables, survey administration, cognitive assessment, psychosocial assessment and care
Behavioral · Drug · Other + 1 more
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
65 Years and older
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
5
States / cities
Cleveland, Ohio • Mentor, Ohio • Orange, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 27, 2020 · Synced Oct 19, 2026, 4:43 AM EDT
Completed No phase listed Observational

Alterations in Cognitive Function and Cerebral Blood Flow After Conversion From Immediate Release Tacrolimus to Slow Release Envarsus

NCT03703154
View directory record Official record
Conditions
End Stage Renal Disease
Interventions
Envarsus, Tacrolimus
Drug
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Apr 27, 2021 · Synced Oct 19, 2026, 4:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Understanding Individual Differences in Working Memory Training and Transfer in Older Adults

NCT05396586
View directory record Official record
Conditions
Cognitive Change
Interventions
N-back, Span, Multisensory
Behavioral
Lead sponsor
Northeastern University
Other
Eligibility
50 Years to 85 Years
Enrollment
313 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
2
States / cities
Irvine, California • Riverside, California
Source: ClinicalTrials.gov public record
Updated Mar 12, 2025 · Synced Oct 19, 2026, 4:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Cognitive Multi-Tasking Training in Healthy Older Adults

NCT04195230
View directory record Official record
Conditions
Age-related Cognitive Decline
Interventions
Multi-tasking Training
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
60 Years to 75 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 28, 2022 · Synced Oct 19, 2026, 4:43 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

The Effect of Sex Steroid Replacement Therapy in the Hypogonadism and Transgender Active-Duty Population

NCT06247267
View directory record Official record
Conditions
Hypogonadism, Gender Identity Dysphoria
Interventions
Fortesta, Estradiol
Drug
Lead sponsor
Walter Reed National Military Medical Center
Federal
Eligibility
18 Years to 65 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 29, 2025 · Synced Oct 19, 2026, 4:43 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

An Open-Label, Two-Arm Pilot Study of the Tolerability, Consumer Acceptability, and Exploratory Well-Being Outcomes of a Multi-Ingredient Protein Formula in Two Flavors in Healthy Adults

NCT07827014
View directory record Official record
Conditions
Healthy
Interventions
Vanilla Protein Formula, Chocolate Protein Formula
Dietary Supplement
Lead sponsor
Qualia Life Sciences
Industry
Eligibility
21 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Carlsbad, California
Source: ClinicalTrials.gov public record
Updated Sep 18, 2026 · Synced Oct 19, 2026, 4:43 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Treating Hyperexcitability in AD With Levetiracetam

NCT03875638
View directory record Official record
Conditions
Alzheimer Dementia, Alzheimer Disease, Dementia of Alzheimer Type, Mild Cognitive Impairment
Interventions
Levetiracetam, Placebo oral capsule
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
50 Years to 90 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced Oct 19, 2026, 4:43 AM EDT
Recruiting Not applicable Interventional

Enhancing Slow Wave Sleep in Depression

NCT07143838
View directory record Official record
Conditions
Depression - Major Depressive Disorder
Interventions
Transcranial Electrical Stimulation (TES)
Device
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
40 Years to 80 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Oct 19, 2026, 4:43 AM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Effects of GLYX-13 on Learning and Memory in Healthy Individuals and Those With Psychiatric Illness

NCT01844726
View directory record Official record
Conditions
Psychiatric Illness, Healthy
Interventions
GLYX-13, Placebo
Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 40 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 20, 2023 · Synced Oct 19, 2026, 4:43 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Levetiracetam and Memory Function in Amnestic Mild Cognitive Impairment (MCI)

NCT01044758
View directory record Official record
Conditions
Mild Cognitive Impairment (MCI)
Interventions
Levetiracetam 62.5mg, Levetiracetam 125mg, Levetiracetam 250mg, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
50 Years to 85 Years
Enrollment
96 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 21, 2017 · Synced Oct 19, 2026, 4:43 AM EDT
Completed Not applicable Interventional

A Physical Activity Intervention to Promote Cognitive Health, Cardiovascular Health and Sleep in Older Latinos

NCT05030948
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
Tiempo Juntos Intervention
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
55 Years and older
Enrollment
234 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 1, 2026 · Synced Oct 19, 2026, 4:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of A Proprietary Spearmint Extract on Cognitive Performance

NCT02518165
View directory record Official record
Conditions
Mood, Cognitive Performance, Sleep
Interventions
Proprietary spearmint extract, Placebo
Dietary Supplement · Other
Lead sponsor
Kemin Foods LC
Industry
Eligibility
18 Years to 50 Years
Enrollment
142 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 31, 2018 · Synced Oct 19, 2026, 4:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluation of DCTclock™ as a Cognitive Assessment Aid

NCT03238001
View directory record Official record
Conditions
Cognitive Function
Interventions
DCTclock
Device
Lead sponsor
Digital Cognition Technologies
Industry
Eligibility
55 Years to 95 Years
Enrollment
450 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Maitland, Florida
Source: ClinicalTrials.gov public record
Updated Apr 3, 2018 · Synced Oct 19, 2026, 4:43 AM EDT
Completed Phase 2 Interventional

A Study to Evaluate the Effects of GW679769 on Sleep and Cognitive Function in Subjects With Primary Insomnia

NCT00650871
View directory record Official record
Conditions
Sleep Initiation and Maintenance Disorders
Interventions
GW679769, Placebo
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 64 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
7
States / cities
San Diego, California • Atlanta, Georgia • New York, New York + 4 more
Source: ClinicalTrials.gov public record
Updated Aug 8, 2017 · Synced Oct 19, 2026, 4:43 AM EDT
Active, not recruiting Phase 2 Interventional

Impact of Intensive Treatment of SBP on Brain Perfusion, Amyloid, and Tau (IPAT Study)

NCT05331144
View directory record Official record
Conditions
Cognitively Normal Older Adults, Hypertension, Subjective Cognitive Decline, Family History of Dementia
Interventions
Angiotensin II Receptor Blockers (ARBs, losartan) and Calcium Channel Blockers (CCB, amlodipine), PCP
Drug · Other
Lead sponsor
Rong Zhang
Other
Eligibility
60 Years to 85 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Oct 19, 2026, 4:43 AM 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 19, 2026, 4:43 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Lutein, Zeaxathin, and Fish Oil Supplementation

NCT06489873
View directory record Official record
Conditions
Cognitive Performance, Age-Related Macular Degeneration, Bone Loss
Interventions
Active Comparator (Lutein, zeaxanthin, and fish oil supplement (LZF), Placebo Comparator
Dietary Supplement
Lead sponsor
Texas A&M University
Other
Eligibility
18 Years to 45 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced Oct 19, 2026, 4:43 AM EDT
Active, not recruiting No phase listed Observational

Cincinnati Infant Neurodevelopment Early Prediction Study (CINEPS)

NCT03345069
View directory record Official record
Conditions
Premature Infant
Interventions
Not listed
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
Up to 3 Years
Enrollment
393 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2027
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 7, 2024 · Synced Oct 19, 2026, 4:43 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Cognitive Function and Affective Regulation in Meditators

NCT07546786
View directory record Official record
Conditions
Cognitive Function and Affective Regulation
Interventions
Not listed
Lead sponsor
Balachundhar Subramaniam
Other
Eligibility
18 Years and older
Enrollment
104 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Oct 19, 2026, 4:43 AM EDT