Clinical trials: Chronobiology
Anemia, Sickle Cell, Sickle Cell Disease
Preventing Sickle Cell Kidney Disease
Untreated hypertension and renal injury are risk factors for increased morbidity and mortality in sickle cell disease, yet early markers of progressive disease have not been identified and therapies to prevent the development of…
- Conditions
- Anemia, Sickle Cell, Sickle Cell Disease, Kidney Disease, Hypertension
- Trial name
- NCT02373241
- Testing
- Losartan
- Where
- United States
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Cardiovascular Risk Factor, Circadian Dysregulation
Body Weight, Sleep, and Heart Health
A multidisciplinary investigation examining the circadian mechanisms regulating cardiovascular (CV) risk, with an additional focus on obesity.
- Conditions
- Cardiovascular Risk Factor, Circadian Dysregulation, Obesity
- Trial name
- NCT03388788
- Testing
- Positron Emission Tomography (PET) scanning of cardiac function at 3 time points across the 24 hour circadian cycle
- Where
- United States
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- Oregon Health and Science University
Circadian Rhythm Sleep Disorders
Safety and Efficacy of VEC-162 on Circadian Rhythm in Healthy Adult Volunteers
The purpose of this study is to assess the safety and efficacy of VEC-162 compared to matching placebo on circadian phase shift and sleep parameters.
- Trial name
- NCT00490945
- Testing
- VEC-162
- Where
- 2 sites in United States
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Vanda Pharmaceuticals
Sleep Disorder, Shift-Work
Examination of the Effectiveness of Suvorexant in Improving Daytime Sleep in Shift Workers
The purpose of this study is to test the hypothesis that ingestion of the wake-inhibiting drug suvorexant 30 minutes prior to daytime sleep initiation in individuals working overnight shifts will significantly improve both…
- Trial name
- NCT02491788
- Testing
- Suvorexant
- Where
- United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- VA Palo Alto Health Care System
Aging, Mental Disorder
Self-Care for Dementia Caregivers
The Self-care for Dementia Caregivers Study is a behavioral health intervention that uses digital monitoring tools and motivational health coaching to help caregivers of persons with dementia engage in a regular routine of sleep…
- Conditions
- Aging, Mental Disorder, Eating, Healthy, Physical Inactivity
- Trial name
- Care2 (NCT05309577)
- Testing
- Behavioral Self-Monitoring + Motivational Interviewing
- Where
- United States
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- University of Pittsburgh
Shift-Work Sleep Disorder, Shift-Work Related Sleep Disturbance
Sleep and Circadian Treatments for Shift Workers
There are three components to this study: a Field Trial, a Shift Worker Survey, and Focus Groups. The Investigators will study the effectiveness, feasibility, and acceptability of an 8-h sleep intervention in older night workers…
- Trial name
- NCT03813654
- Testing
- 8-h Afternoon-Evening Sleep, 8-h Free Sleep
- Where
- United States
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
PreDiabetes, Circadian Dysregulation
Morning Light Treatment to Improve Glucose Metabolism
The primary purpose of this pilot study is to test a novel head worn light device (Re-Timer®) as an intervention to improve glucose metabolism in people with prediabetes.
- Trial name
- ML (NCT03188263)
- Testing
- Bright Light, Dim Light
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Northwestern University
Sleep Deprivation, Diabetes
Home Sleep and Circadian Phase: Mediators of Diabetes Risk
The purpose of this study is to determine if deficient sleep and/or disruption with the body's internal clock ("circadian rhythms") are associated with diabetes risk.
- Conditions
- Sleep Deprivation, Diabetes, Circadian Dysregulation
- Trial name
- NCT01786564
- Where
- United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Northwestern University
Sleep Disorders, Circadian Rhythm, Cognitive Dysfunction
Feasibility Study on the Use of Redormin®500 on Day-time Cognition
Randomized, double-blind, parallel groups, placebo-controlled, baseline/run-in period of 21 days followed by trial period of 21 days, digital phenotyping (sleep, cognitive/psychological parameters and HRV).
- Trial name
- NCT05684523
- Testing
- Valerian-Hop Extract
- Where
- Switzerland
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Max Zeller Soehne AG
Non-24-Hour-Sleep-Wake Disorder
Open Label Study to Assess the Absolute Bioavailability of Tasimelteon (HETLIOZ™)
Hetlioz™ (tasimelteon) is used in the treatment of Non-24-Hour-Sleep-Wake Disorder (Non-24). Non-24 is very common in people who are totally blind because light can not reset their body clock.
- Trial name
- NCT02130999
- Testing
- tasimelteon 20 mg capsule, tasimelteon 2 mg I.V.
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Vanda Pharmaceuticals
Shift-Work Sleep Disorder, Insomnia
Fire Fighter Fatigue Management Program: Operation Healthy Sleep
Firefighters work some of the most demanding schedules known under highly stressful and demanding conditions. The need to work frequent extended shifts and long work weeks leads to acute and chronic partial sleep deprivation as…
- Conditions
- Shift-Work Sleep Disorder, Insomnia, Restless Leg Syndrome, Obstructive Sleep Apnea
- Trial name
- NCT01988129
- Testing
- Sleep disorders education and screening
- Where
- United States
- Volunteers
- 1,189 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Shift-Work Sleep Disorder
Effects of Daytime Eszopiclone Administration in Shift Workers
The purpose of this study is to test the effects of eszopiclone on daytime sleep and overnight wakefulness in shift workers.
- Trial name
- NCT00900159
- Testing
- eszopiclone
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Obesity, Hypertension
Timing of Sodium Intake and Nocturnal Sodium Excretion and Blood Pressure in Obese African Americans
Experimental data have shown that timing of sodium intake impacts diurnal patterns of sodium excretion. The purpose of this study is to test the hypothesis that the time of day for salt intake impacts (1) blood pressure rhythms…
- Conditions
- Obesity, Hypertension, Circadian Dysregulation, Salt; Excess
- Trial name
- NCT04021355
- Testing
- Oral sodium supplementation
- Where
- United States
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Chromosome Disorders
Melatonin Levels in Smith Magenis Syndrome (SMS)
The goal of this pilot project is to determine whether melatonin levels are disordered in patients with Smith-Magenis Syndrome (SMS) and whether melatonin treatment can correct abnormal circadian rhythms in SMS patients.
- Trial name
- NCT00691574
- Testing
- Melatonin, Enviro-light artificial light box
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- Oregon Health and Science University
Inflammation, Sleep Deprivation
Circadian Rhythm Disruption Effects on Smoke Inhalation
Particulate matter exposure during smoke inhalation provokes inflammatory immune responses in people exposed to burning biomass including fire fighters and civilians.
- Conditions
- Inflammation, Sleep Deprivation, Circadian Rhythm Sleep Disorder, Shift Work Type, Smoke Inhalation
- Trial name
- NCT04955431
- Testing
- Sleep Restriction, Normal Sleep
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Montana
Delayed Sleep-Wake Phase Disorder
Glasses for Adolescent Delayed Sleep-Wake Phase Disorder
The purpose of this study is to determine if evening amber glasses combined with stable wake times will show an increase in total sleep time (TST) and an advance in sleep onset times (shift earlier) compared to the control group.
- Trial name
- NCT04378933
- Testing
- Amber Glasses, Clear Lens Glasses
- Where
- 2 sites in United States
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Dementia, Alzheimer Disease
The Healthy Patterns Sleep Study
The Healthy Patterns Study intervention is a home-based activity intervention designed to improve symptoms of circadian rhythm disorders (CRD) and quality of life (QOL) in home-dwelling persons with dementia.
- Conditions
- Dementia, Alzheimer Disease, Circadian Rhythm Disorders, Circadian Rhythm Sleep Disorder
- Trial name
- NCT03682185
- Testing
- Attention-Control Condition, Timed Activity Intervention
- Where
- United States
- Volunteers
- 421 people, healthy volunteers welcome
- Sponsor
- University of Pennsylvania
Binge-Eating Disorder, Circadian Rhythm Disorders
The Role of the Circadian System in Binge Eating Disorder
Binge eating disorder (BED) shows prominent circadian features that suggest a delay in circadian phase, and preliminary evidence shows binge eating may be responsive to chronobiological interventions, implicating a circadian…
- Trial name
- CHRONO-BE (NCT04724668)
- Testing
- Melatonin (3hrs before DLMO), Morning light version 1, Morning light version 2
- Where
- United States
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- University of Cincinnati
Sleep, Circadian Rhythm Disorders
Sleep Timing, Eating and Activity Measurement Study
There is strong reason to believe that sleep promotion during adolescence could yield long-term health rewards; the investigators' data show that, when they get more sleep, Morning Larks have impressively reduced intake of…
- Conditions
- Sleep, Circadian Rhythm Disorders, Dietary Habits
- Trial name
- STEAM (NCT04992611)
- Testing
- Sleep Extension (Early), Sleep Extension (Late)
- Where
- United States
- Volunteers
- 190 people, healthy volunteers welcome
- Sponsor
- Children's Hospital Medical Center, Cincinnati