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ClinicalTrials.gov public records Last synced May 22, 2026, 1:40 AM EDT

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

Showing 1–24 of 36 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Alertness Clear all
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Caffeine, Cognitive Change, Mood, Mood Change
Interventions
xumXR extended release caffeine, immediate release caffeine
Dietary Supplement
Lead sponsor
Applied Science & Performance Institute
Industry
Eligibility
35 Years to 50 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Sep 15, 2025 · Synced May 22, 2026, 1:40 AM EDT
Withdrawn Early Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Reaction Time, Alertness
Interventions
Transcranial Focused Ultrasound
Device
Lead sponsor
Medical University of South Carolina
Other
Eligibility
22 Years to 55 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Sep 7, 2025 · Synced May 22, 2026, 1:40 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Lewy Body Disease, Lewy Body Variant of Alzheimer Disease, Lewy Body Dementia With Behavioral Disturbance
Interventions
HD-tDCS
Device
Lead sponsor
University of Michigan
Other
Eligibility
50 Years to 90 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 21, 2025 · Synced May 22, 2026, 1:40 AM EDT
Enrolling by invitation Early Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Longevity, Quality of Life, Mood, Inflammation, Immune Health, Pain Management, Weight Management, Alertness
Interventions
GLP-1, Placebo
Drug
Lead sponsor
AgelessRx
Industry
Eligibility
18 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 29, 2025 · Synced May 22, 2026, 1:40 AM EDT
Not listed Phase 2 Interventional
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Sep 24, 2014 · Synced May 22, 2026, 1:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Sleep Quality
Interventions
Filtered Eyewear, Unfiltered Eyewear, No Filters
Device · Other
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Menands, New York
Source: ClinicalTrials.gov public record
Updated Aug 4, 2025 · Synced May 22, 2026, 1:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Theanine, (L)-Isomer
Interventions
L-theanine capsule, Placebo capsule
Dietary Supplement
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Sugar Land, Texas
Source: ClinicalTrials.gov public record
Updated Dec 12, 2023 · Synced May 22, 2026, 1:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Delayed Sleep Phase Disorder, Jet-lag, Shift-work Disorder
Interventions
Low Dose Melatonin, Placebo, High Dose Melatonin
Biological
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 30 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 7, 2017 · Synced May 22, 2026, 1:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Attention Difficulties
Interventions
Gel capsule
Other
Lead sponsor
PepsiCo Global R&D
Industry
Eligibility
18 Years to 55 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 13, 2022 · Synced May 22, 2026, 1:40 AM EDT
Suspended Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Sleep Initiation and Maintenance Disorders, Circadian Rhythm Sleep Disorders, Hypersomnia
Interventions
light exposure
Procedure
Lead sponsor
National Institute on Aging (NIA)
NIH
Eligibility
55 Years to 80 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 10, 2009 · Synced May 22, 2026, 1:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Behavior
Interventions
Fragrance
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
24 Years to 85 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 13, 2020 · Synced May 22, 2026, 1:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Healthy, Circadian Rhythm
Interventions
Monochromatic visible light exposure
Device
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 30 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 11, 2014 · Synced May 22, 2026, 1:40 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Non-visual Effects of Light
Interventions
Visible light
Device
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 30 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 17, 2022 · Synced May 22, 2026, 1:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Circadian Rhythm Disorders
Interventions
Ocular light or darkness exposure
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 30 Years
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 22, 2011 · Synced May 22, 2026, 1:40 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Alertness
Interventions
Flavored caffeinated beverage
Other
Lead sponsor
PepsiCo Global R&D
Industry
Eligibility
18 Years to 55 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Dilworth, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 23, 2022 · Synced May 22, 2026, 1:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Sleep, Sleep Disturbance
Interventions
Elemind Neuromodulation (ENMod)
Device
Lead sponsor
Elemind Technologies, Inc.
Industry
Eligibility
21 Years to 55 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 19, 2024 · Synced May 22, 2026, 1:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Sleep Duration, Psychomotor Performance
Interventions
Wrist worn vibro-acoustic device
Device
Lead sponsor
Daniel Patterson, PhD, NRP
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 2, 2026 · Synced May 22, 2026, 1:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Sleep Apnea, Insufficient Sleep Syndrome, Sleep, Hypertension
Interventions
PAP Treatment, Sleep Education I
Behavioral
Lead sponsor
Wayne State University
Other
Eligibility
18 Years and older
Enrollment
558 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 2, 2025 · Synced May 22, 2026, 1:40 AM EDT
Completed Phase 3 Interventional
View directory record Official record
Conditions
Anesthesia, Surgical Procedures, Elective
Interventions
Dexmedetomidine, Placebo
Drug
Lead sponsor
Hospira, now a wholly owned subsidiary of Pfizer
Industry
Eligibility
18 Years and older
Enrollment
326 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
27
States / cities
Birmingham, Alabama • Loma Linda, California • Miami, Florida + 18 more
Source: ClinicalTrials.gov public record
Updated Jul 22, 2015 · Synced May 22, 2026, 1:40 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Cognitive Performance, Sleep, Alertness
Interventions
Biodynamic, Active Placebo
Other
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 29, 2024 · Synced May 22, 2026, 1:40 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Lifestyle, Healthy, Sleepiness, Alertness, Shift-Work Related Sleep Disturbance, Work Related Stress, Self Efficacy, Self-Compassion
Interventions
Personalized lifestyle coaching and educational handout, Handout
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
21 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced May 22, 2026, 1:40 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Sleep, Circadian Rhythm, Cognitive Performance
Interventions
Not listed
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 35 Years
Enrollment
119 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 30, 2013 · Synced May 22, 2026, 1:40 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Burnout, Professional
Interventions
Virtual Reality Headset with curated content
Other
Lead sponsor
George Washington University
Other
Eligibility
18 Years to 65 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Dec 13, 2021 · Synced May 22, 2026, 1:40 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available
View directory record Official record
Conditions
Sleep Apnea, Obstructive
Interventions
Continuous Positive Airway Pressure (CPAP)
Device
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
144 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 4, 2016 · Synced May 22, 2026, 1:40 AM EDT