Clinical trials: Circadian Rhythm
Hypertension, Cardiovascular Risk Factor
Sleep and Circadian Mechanisms of Non-dipping Blood Pressure
This study will be the first to distinguish the relative contributions of sleep, circadian and behavioral mechanisms to the non-dipping BP profile in Black adults and will lay the groundwork for optimizing therapies dependent on…
- Trial name
- NCT03558893
- Testing
- Forced Desynchrony
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Oregon Health and Science University
Critical Illness, Sleep Deprivation
Improving the Sleep and Circadian Rhythms of Mechanically Ventilated Patients
The goal of this project is to determine whether the sleep and circadian rhythms of critically ill patients undergoing mechanical ventilation can be improved through practical strategies that can be employed at the bedside.
- Conditions
- Critical Illness, Sleep Deprivation, Respiratory Failure, Sleep Disorders, Circadian Rhythm
- Trial name
- NCT01284140
- Testing
- Sleep and circadian rhythm promotion, Usual care
- Where
- 2 sites in United States
- Volunteers
- 24 people
- Sponsor
- Brian Gehlbach
Lightning Strategies on Health, Circadian Rhythms Photoentrainment
Population Based Lighting Study on Older Adults
The ENLIGHTENme project aims at collecting evidence about the impact of outdoor and indoor lighting on human health and wellbeing through the development and testing of innovative solutions and policies that will also counteract…
- Conditions
- Lightning Strategies on Health, Circadian Rhythms Photoentrainment, Photoentrainment and Sleep, DLMO
- Trial name
- ENLIGHTENme (NCT05676086)
- Testing
- indoor light intervention, no indoor light
- Where
- Italy
- Volunteers
- 191 people
- Sponsor
- Azienda Usl di Bologna
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
Metabolic Syndrome, Pre-Diabetes
The Influence of Time-Restricted Eating in Patients With Metabolic Syndrome
In a randomized controlled trial, the investigators intend to measure the health impact of TRE in patients with metabolic syndrome (with three or more of the following criteria: increased waist circumference, abnormal cholesterol…
- Trial name
- TIMET (NCT04057339)
- Testing
- Time Restricted Eating + Standard of Care, Standard of Care
- Where
- United States
- Volunteers
- 122 people
- Sponsor
- University of California, San Diego
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
Intraocular Pressure
Aqueous Humor Dynamics and Brimonidine
This single-center, investigator-masked, crossover study is designed to investigate the circadian rhythms of aqueous humor dynamics in human subjects with ocular hypertension (OHT) before and after intervention with a commonly…
- Trial name
- Brimonidine (NCT01144494)
- Testing
- Brimonidine, Artificial tears
- Where
- United States
- Volunteers
- 35 people
- Sponsor
- University of Nebraska
Phenylketonuria (PKU)
A Pilot Study on Diurnal Variation
This self-controlled, prospective, pilot study is designed to gather information regarding the diurnal variation (changes that occur each day) in the levels of plasma phenylalanine (Phe) and tyrosine in patients with…
- Trial name
- NCT01806051
- Testing
- Kuvan
- Where
- United States
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- Dr. Linda Randolph
Healthy
Circadian Brown Adipose Tissue Metabolism
Brown adipose tissue is poorly understood fat that can metabolize glucose in order to generate heat. Since activated brown fat has a high metabolic rate, it is of great interest as a potential target to combat obesity.
- Trial name
- NCT02285270
- Testing
- FDG PET/CT
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Pennsylvania
Glaucoma
Circadian Rhythms of Aqueous Humor Dynamics in Humans
This study is designed to identify physiological, pharmacological and pathological circadian fluctuations in aqueous humor inflow and outflow, systemic blood pressure and ocular blood flow in humans.
- Trial name
- NCT00572936
- Testing
- Latanoprost, Dorzolamide, Timolol
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Nebraska
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
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
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
Sleep Disturbances, Depression
Methodology Issues in a Tailored Light Treatment for Persons With Dementia
Tailored light treatment will increase sleep efficiency, reduce depression and reduce agitation scores in those with Alzheimer's disease and related dementia
- Trial name
- NCT01816152
- Testing
- High Active intervention, Inactive intervention, Mid Level Active Intervention
- Where
- 2 sites in United States
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Icahn School of Medicine at Mount Sinai
Respiratory Failure, Critical Illness
Sleep and Circadian Rhythms in Mechanically Ventilated Patients
This study examines the feasibility of assessing sleep and circadian rhythmicity in critically ill patients undergoing mechanical ventilation.
- Trial name
- NCT01276652
- Testing
- Environmental modification
- Where
- United States
- Volunteers
- 25 people
- Sponsor
- University of Iowa
Delayed Sleep Phase Syndrome
Randomized Controlled Trial on the Treatment Effects of Melatonin and Light Therapy on Delayed Sleep Phase Syndrome
In this study the investigators will examine the effects of melatonin and light therapy on delayed sleep phase syndrome in adolescents 16 up to 20 years old.
- Trial name
- NCT00834886
- Testing
- Melatonin, Bright light
- Where
- Norway
- Volunteers
- 40 people
- Sponsor
- University of Bergen
Traumatic Brain Injury, Fatigue
Treatment of Post-Traumatic Brain Injury (Post-TBI) Fatigue With Light Therapy
This study aims to evaluate the efficacy of 4 weeks of daily light exposure in reducing Post-Traumatic Brain Injury (TBI) Fatigue immediately post-treatment and at a one-month follow up.
- Trial name
- NCT01725750
- Testing
- Bright White Light (BWL), Dim Red Light (DRL)
- Where
- United States
- Volunteers
- 88 people
- Sponsor
- Icahn School of Medicine at Mount Sinai
Glucose, Circadian Rhythm
Interaction of Melatonin and MTNR1B Genotype on Glucose Control - Study 1
This project aims to test the impact of melatonin and MTNR1B variation on regulation glucose regulation in a highly controlled in-laboratory setting and ex vivo in pancreatic islets.
- Conditions
- Glucose, Circadian Rhythm, Melatonin, Genes
- Trial name
- NCT02642640
- Testing
- melatonin
- Where
- United States
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Sleep Initiation and Maintenance Disorders
Effects of Melatonin on Insomnia Symptoms in Older Adults
This study will determine whether melatonin tablets will increase the sleep of older adults with insomnia.
- Trial name
- NCT00230737
- Testing
- Melatonin 0.4 mg, Melatonin 4.0 mg
- Where
- United States
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Nalaka Gooneratne
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