Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Jun 25, 2026, 7:04 PM EDT

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Showing 1–24 of 83 matching trials from the live ClinicalTrials.gov search.
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Conditions
Mental Fatigue
Interventions
Caffeine Blend, Sugar Pill
Dietary Supplement · Other
Lead sponsor
University of Mary Hardin-Baylor
Other
Eligibility
18 Years to 25 Years · Male only
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Belton, Texas
Completed No phase listed Observational Accepts healthy volunteers

Cognitive Dysfunction in Postural Tachycardia Syndrome

NCT01366963
Conditions
Postural Tachycardia Syndrome
Interventions
Seated Measurements, Standing Measurements, Self-Administered Surveys
Behavioral
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 60 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Nashville, Tennessee
Conditions
Cancer
Interventions
Sildenafil
Drug
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
30 Years to 50 Years · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2030
U.S. locations
1
States / cities
Galveston, Texas
Conditions
COVID-19
Interventions
Brainscope modified EEG and cognitive testing
Diagnostic Test
Lead sponsor
Texas Tech University Health Sciences Center, El Paso
Other
Eligibility
18 Years to 85 Years
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
El Paso, Texas
Completed No phase listed Observational Accepts healthy volunteers

Comic Relief: Graphic Medicine as Care for Caregivers

NCT07207265
Conditions
Mental Wellbeing
Interventions
Not listed
Lead sponsor
University of California, Riverside
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Riverside, California
Conditions
Chemo Brain, Chemotherapy-related Cognitive Impairment, Chemo Fog, Breast Cancer, Chemobrain
Interventions
Transdermal nicotine, Placebo Transdermal Patch
Drug · Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
35 Years to 80 Years · Female only
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Nashville, Tennessee
Conditions
Primary Biliary Cholangitis (PBC)
Interventions
Not listed
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Redwood City, California
Completed Not applicable Interventional Accepts healthy volunteers

Frontal Cortex and Gait Freezing in Parkinson's Disease: Rehabilitation Impact

NCT02236286
Conditions
Parkinson's Disease
Interventions
Exercise
Behavioral
Lead sponsor
Oregon Health and Science University
Other
Eligibility
50 Years to 90 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Portland, Oregon
Conditions
Breast Cancer Survivor, Cancer Related Cognitive Difficulties, Sleep, Quality of Life
Interventions
Prolonged Nightly Fasting, Health Education Videos
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Phoenix, Arizona
Conditions
Long COVID
Interventions
Ketamine only
Drug
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Austin, Texas
Conditions
Long COVID
Interventions
NE3107, Placebo
Drug
Lead sponsor
BioVie Inc.
Industry
Eligibility
18 Years to 69 Years
Enrollment
203 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
20
States / cities
Palo Alto, California • San Francisco, California • Aurora, Colorado + 16 more
Conditions
ADHD, Sleep Disturbance, Brain Fog
Interventions
Stasis Daytime and Nighttime, Placebo
Dietary Supplement
Lead sponsor
Outliers, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Las Vegas, Nevada
Conditions
Mental Fatigue
Interventions
Telemental Health - CBT
Behavioral
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Burnout, Compassion Satisfaction, Secondary Trauma
Interventions
PATH (Peer Advanced Training in Harm reduction)
Behavioral
Lead sponsor
Chestnut Health Systems
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Chicago, Illinois
Conditions
Mental Fatigue
Interventions
Travel Telehealth Delivery
Other
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Atlanta, Georgia
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Phytochemicals From Theobroma Cacao on Mental Energy

NCT01651793
Conditions
Mental Fatigue
Interventions
Caffeinated cocoa, Cocoa, Caffeine, Placebo
Other
Lead sponsor
University of Georgia
Other
Eligibility
18 Years to 34 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Athens, Georgia
Conditions
Cardiac Arrhythmia
Interventions
Not listed
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
Cleveland, Ohio
Conditions
Long COVID, Post-COVID19 Condition, Post-Acute COVID19 Syndrome
Interventions
Amantadine
Drug
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Columbus, Ohio
Conditions
Clinical Alarms
Interventions
Alarm Reduction Script
Other
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
Not listed
Enrollment
812 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Completed Not applicable Interventional Accepts healthy volunteers

The Resilience Alliance

NCT02521571
Conditions
Secondary Traumatic Stress
Interventions
Resiliance Alliance, Secondary traumatic stress training
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
357 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
4
States / cities
Brooklyn, New York • New York, New York • Staten Island, New York + 1 more
Conditions
Long Covid
Interventions
Attention Training, Music Group
Other
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
18 Years to 75 Years
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Conditions
Chronic Fatigue Syndrome (CFS), Myalgic Encephalomyelitis (ME)
Interventions
Methyl-P plus Nutrient Formula, Methyl-P plus Nutrient matched placebos
Drug
Lead sponsor
K-PAX Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 59 Years
Enrollment
134 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
4
States / cities
Stanford, California • Fort Lauderdale, Florida • New York, New York + 1 more
Completed Not applicable Interventional Accepts healthy volunteers

Mayo Clinic Family Medicine Resident Wellness Study

NCT05148221
Conditions
Sleep Patterns
Interventions
Questionnaires, Actigraph and activPAL devices
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Eau Claire, Wisconsin
Completed Not applicable Interventional Accepts healthy volunteers

An Exploratory Investigation of a Supplement to Support Student Learning

NCT05528094
Conditions
Concentration Ability Impaired, Mental Fatigue
Interventions
GeniusDrops
Dietary Supplement
Lead sponsor
JoySpring
Other
Eligibility
5 Years to 12 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Santa Monica, California