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Showing 1–18 of 18 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Actiwatch Clear all
Not listed Not applicable Interventional Accepts healthy volunteers

Melatonin and Vaccine Response, Immunity, and Chronobiology Study

NCT04953754
View directory record Official record
Conditions
Vaccine Response, Sleep, Circadian Rhythm Disorders
Interventions
Melatonin, Phillips Actiwatch Spectrum Plus
Dietary Supplement · Device
Lead sponsor
Walter Reed National Military Medical Center
Federal
Eligibility
18 Years to 64 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 9, 2023 · Synced Sep 2, 2026, 8:09 AM EDT
Completed Phase 2 Interventional Results available

Insomnia Treatment and EMA (Ecological Momentary Assessment) Outcomes

NCT05908526
View directory record Official record
Conditions
Insomnia
Interventions
Baseline surveys, Cognitive testing and EMAs, Actiwatch, suvorexant (or placebo), Placebo
Behavioral · Device · Drug + 1 more
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
60 Years to 85 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 29, 2025 · Synced Sep 2, 2026, 8:09 AM EDT
Completed Early Phase 1 Interventional

Systemic Light Exposure in Preventing Frailty in Older Patients With Prostate Cancer on Hormonal Therapy

NCT03661437
View directory record Official record
Conditions
Prostate Carcinoma
Interventions
Actigraph, Questionnaire Administration, Systematic Light Exposure
Device · Other · Procedure
Lead sponsor
City of Hope Medical Center
Other
Eligibility
60 Years and older · Male only
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
1
States / cities
Duarte, California
Source: ClinicalTrials.gov public record
Updated Apr 10, 2025 · Synced Sep 2, 2026, 8:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Fire Fighter Fatigue Management Program: Operation Fight Fatigue

NCT01672502
View directory record Official record
Conditions
Shift-Work Sleep Disorder, Insomnia, Restless Leg Syndrome, Obstructive Sleep Apnea, Impaired Driving
Interventions
Sleep health education provided via a web-based program, Sleep disorder detection and treatment, Optimization of Sleep in Fire Station
Behavioral · Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
620 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 16, 2016 · Synced Sep 2, 2026, 8:09 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

A Comprehensive Care Plan for Pediatric Patients With Vaso-Occlusive Crises

NCT02698761
View directory record Official record
Conditions
Sickle Cell Disease, Sickle Cell Crisis, Vaso-Occlusive Crises
Interventions
Comprehensive Care Plan
Other
Lead sponsor
Valley Anesthesiology Consultants
Other
Eligibility
12 Years to 18 Years
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated May 2, 2018 · Synced Sep 2, 2026, 8:09 AM EDT
Completed No phase listed Observational Results available

Comparison of Sleep Apnea Assessment Strategies to Maximize TBI Rehabilitation Participation and Outcome

NCT03033901
View directory record Official record
Conditions
Apnea, Sleep, Brain Injury, Traumatic
Interventions
Polysomnography - Level 1 and Level 3, Actigraphy monitoring, Sleep Apnea Screening
Device · Other
Lead sponsor
James A. Haley Veterans Administration Hospital
Federal
Eligibility
16 Years and older
Enrollment
345 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
6
States / cities
Englewood, Colorado • Tampa, Florida • Columbus, Ohio + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 28, 2023 · Synced Sep 2, 2026, 8:09 AM EDT
Completed Not applicable Interventional

Use of an Internet-Based Insomnia Intervention to Prevent Cognitive Decline in Adults With Mild Cognitive Impairment

NCT04382365
View directory record Official record
Conditions
Mild Cognitive Impairment, Cognitive Impairment, Insomnia
Interventions
Sleep Health Using the Internet for Older Adult Sufferers of Insomnia and Sleeplessness
Other
Lead sponsor
University of Virginia
Other
Eligibility
55 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 26, 2021 · Synced Sep 2, 2026, 8:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Multicomponent Behavioral Sleep Intervention for Insomnia in Older Adults With Mild Cognitive Impairment

NCT04364191
View directory record Official record
Conditions
Mild Cognitive Impairment, Insomnia
Interventions
Multicomponent Behavioral Sleep Intervention for Insomnia, Active Control
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
55 Years and older
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 28, 2024 · Synced Sep 2, 2026, 8:09 AM EDT
Completed No phase listed Observational

Comparison of Dialysis Therapies on Cognitive Function

NCT00597103
View directory record Official record
Conditions
End Stage Renal Disease, Chronic Kidney Disease
Interventions
Cognitive Function Testing-10 Tests, Sleep Assessment Testing, Periodic Leg Movement Syndrome Assessment
Other
Lead sponsor
Satellite Healthcare
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
2
States / cities
Mountain View, California
Source: ClinicalTrials.gov public record
Updated Apr 17, 2019 · Synced Sep 2, 2026, 8:09 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Sleep Actigraphy in Postural Tachycardia Syndrome (POTS)

NCT00692471
View directory record Official record
Conditions
Postural Tachycardia Syndrome, Orthostatic Intolerance, Sleep Disorders
Interventions
Actigraphy Watch (motion sensors) with light sensors - ActiWatch from Minimitter
Device
Lead sponsor
Satish R. Raj
Other
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2029
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 7, 2025 · Synced Sep 2, 2026, 8:09 AM EDT
Completed Not applicable Interventional Results available

Racial Differences in Circadian and Sleep Mechanisms for Nicotine Dependence, Craving, and Withdrawal

NCT03968900
View directory record Official record
Conditions
Smoking, Sleep Disturbance, Nicotine Dependence
Interventions
Sleep restriction condition, Sleep extension condition
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 24, 2026 · Synced Sep 2, 2026, 8:09 AM EDT
Completed No phase listed Observational

Cancer Patients' Performance Status Assessed Using Cardiopulmonary Exercise Testing and Wearable Data Generation

NCT02844400
View directory record Official record
Conditions
Malignant Solid Tumor, Hematologic Malignancies
Interventions
Biometric Devices, Physical Performance Testing
Device · Other
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 21, 2019 · Synced Sep 2, 2026, 8:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

24-hour Blood Pressure Measurements and Ischemic Conditioning

NCT03303404
View directory record Official record
Conditions
Blood Pressure
Interventions
Ambulatory (24-hour) Blood Pressure
Device
Lead sponsor
University of Texas at Austin
Other
Eligibility
30 Years to 60 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Dec 21, 2020 · Synced Sep 2, 2026, 8:09 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Health Behaviors and Time-of-Day: Older Adult Cognitive Function

NCT02300272
View directory record Official record
Conditions
Alteration of Cognitive Function, Ageing
Interventions
Polysomnograph, Actiwatch
Device
Lead sponsor
University of Florida
Other
Eligibility
65 Years and older
Enrollment
88 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Dec 12, 2019 · Synced Sep 2, 2026, 8:09 AM EDT
Recruiting Not applicable Interventional

Bright Light Exposure in Surgical Patients

NCT03822949
View directory record Official record
Conditions
Myocardial Ischemia, Critical Illness, Endothelial Dysfunction
Interventions
Day Light, Placebo light, ICU Intense Light, ICU Placebo light
Device
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 90 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated May 13, 2025 · Synced Sep 2, 2026, 8:09 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Fire Fighter Fatigue Management Program: Operation Healthy Sleep

NCT01988129
View directory record Official record
Conditions
Shift-Work Sleep Disorder, Insomnia, Restless Leg Syndrome, Obstructive Sleep Apnea, Impaired Driving, Injuries
Interventions
Sleep disorders education and screening
Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
1,189 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 15, 2017 · Synced Sep 2, 2026, 8:09 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Study Watch Sleep Metric Performance Characterization Study

NCT05276362
View directory record Official record
Conditions
Sleep, Obstructive Sleep Apnea, Insomnia
Interventions
Study Watch, Actiwatch
Device
Lead sponsor
Verily Life Sciences LLC
Industry
Eligibility
18 Years to 80 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Menlo Park, California
Source: ClinicalTrials.gov public record
Updated May 1, 2024 · Synced Sep 2, 2026, 8:09 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Objective Assessment of the Effects of Shift Work on Drowsiness and Driving Impairment in Hospital Staff

NCT01672489
View directory record Official record
Conditions
Impaired Driving, Sleep Driving
Interventions
Not listed
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 13, 2024 · Synced Sep 2, 2026, 8:09 AM EDT