Clinical trials: Circadian Rhythm
Chronobiology Disorders
Circadian Health and Influential Factors
This study evaluates the quality of sleep of patients admitted to medical and intensive care units. All of them will have a clock placed to measure their circadian activity.
- Trial name
- CHRONOHOSPI (NCT04113876)
- Where
- Spain
- Volunteers
- 975 people, healthy volunteers welcome
- Sponsor
- Instituto de Salud Carlos III
Prediabetes / Type 2 Diabetes, Obesity and Overweight
An Integrative Study of the Role of Microbiome, Metabolome, Transcriptome and Chronobiology in the Context of Type 2 Diabetes.
The goal of this descriptive clinical study is to investigate daily oscillations in glycaemic control between healthy adults and adults with excess weight and who have early-stage prediabetes or T2D and are not taking medications…
- Conditions
- Prediabetes / Type 2 Diabetes, Obesity and Overweight, Insulin Resistance
- Trial name
- KRONODIABET (NCT06783218)
- Where
- Spain
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Clinica Universidad de Navarra, Universidad de Navarra
Circadian Rhythm
Effect of Circadian Rhythm on Brain NAD Measured by Phosphorus Magnetic Resonance Spectroscopy at 7 Tesla
The Discovery of the circadian clock first established a genetic basis for behavior, and our understanding of circadian rhythm (CIR) has since expanded to provide molecular insights into physiology and disease.
- Trial name
- ChronoBrain (NCT05093088)
- Where
- Switzerland
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Ecole Polytechnique Fédérale de Lausanne
Sleep Disturbance, Depression
The Effects of Bright Light Therapy on Adolescent's Sleep Quality and Well-being
Sleep problems are common among adolescents which can have a variety of serious biological, emotional, cognitive and psychological consequences.
- Conditions
- Sleep Disturbance, Depression, Mood, Circadian Rhythms
- Trial name
- NCT05555186
- Testing
- BWL classrooms (Experimental), DWL classrooms (Comparison)
- Where
- Iceland
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- Reykjavik University
Circadian Rhythm, Blood Pressure
Circadian Mechanisms Underlying Non-Dipping Blood Pressure in Blacks
This study seeks to examine central and peripheral circadian mechanisms in Blacks with appropriately dipping systolic blood pressure (blood pressure that dips by at least 10%) compared with non-dipping systolic blood pressure…
- Trial name
- NCT03934255
- Testing
- Constant Routine Protocol
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Sleep Quality, Well-being
Light in Healthcare Environment (Ljus i sjukhusmiljö)
The goal of this clinical trial is to learn if light can enhance the feeling of well-being and sleep quality in Radiographers. It will also find out if there is an optimal recipe for light.
- Conditions
- Sleep Quality, Well-being, Melatonin, Cortisol
- Trial name
- LIS (NCT06687304)
- Testing
- Light enhancement
- Where
- 3 sites in Sweden
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Lund University
Sleep Disturbances
Individually Tailored Lighting System to Improve Sleep in Older Adults
In conjunction with investigators at the Cecil G. Sheps Center for Health Services Research, University of North Carolina (UNC) at Chapel Hill, we propose to develop and evaluate a low-cost, minimally obtrusive device that…
- Trial name
- NCT01855126
- Testing
- Blue light, Red light
- Where
- United States
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Rensselaer Polytechnic Institute
Healthy, Bipolar
Examining Lithium's Mechanism in Bipolar Disorder
The primary objective of the current study is to examine the acute effect of lithium on the visual and non-visual responses to light in a sample of healthy participants.
- Trial name
- HELIOS-BD 2 (NCT07750925)
- Testing
- Lithium carbonate (Priadel), Controlled light exposure
- Where
- United Kingdom
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Northumbria University
Diabetes Mellitus, Type 2, Insulin Resistance
Day-Night Rhythm in Human Skeletal Muscle
This study evaluates the existence of a day-night rhythm in skeletal muscle energy metabolism in healthy lean subjects. Subjects will stay at the research facility for 44 hours with a standardized living protocol during which…
- Trial name
- NCT02261168
- Testing
- Standardized living protocol
- Where
- Netherlands
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Maastricht University Medical Center
Blood Pressure Measurement in Pregnancy
The Aim of the Study is to Examine the Variation in Blood Pressure Between an Optimal Measurement (According to Established Guidelines in the Literature - Per Guidelines) and a 'Common' Measurement (Used by Nursing Teams - Per Common Practice) Among Women of Reproductive Age With and Without Hyperte
The aim of the study is to examine the variation in blood pressure between an optimal measurement (according to established guidelines in the literature - per guidelines) and a 'common' measurement (used by nursing teams - per…
- Trial name
- NCT07320339
- Testing
- blood pressure measurement
- Where
- Israel
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Hillel Yaffe Medical Center
Glaucoma, Open-Angle, Circadian Rhythm
Circadian Variations in Ocular Blood Flow in Glaucomatous and Normal Eyes
After focusing many years only on intraocular pressure (IOP) as the primary risk factor, recently the impact of ocular blood flow is getting more consideration for the pathophysiology of glaucoma.
- Conditions
- Glaucoma, Open-Angle, Circadian Rhythm, Intraocular Pressure, Regional Blood Flow
- Trial name
- NCT00707226
- Where
- Austria
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Major Depressive Disorder, Bipolar I Disorder
Digital Phenotypes for Predicting Depression_Validation
This 12-month, single-site prospective observational study will prospectively monitor the recurrence of mood episodes while continuously collecting passive digital phenotypes in individuals with and without mood disorders.
- Conditions
- Major Depressive Disorder, Bipolar I Disorder, Bipolar II Disorder, Mood Disorders
- Trial name
- NCT07880015
- Where
- South Korea
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Korea University Anam Hospital
Congenital Hydronephrosis, Congenital Choledochal Cyst
Effects of Etomidate on Postoperative Circadian Rhythm Changes of Salivary Cortisol in Children
Etomidate is an unique drug used for induction of general anesthesia and sedation. Adrenal cortical inhibition by etomidate has received much attention.
- Conditions
- Congenital Hydronephrosis, Congenital Choledochal Cyst, Fracture
- Trial name
- NCT02013986
- Testing
- etomidate, midazolam, propofol
- Where
- China
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Du yi
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
Healthy Aging
Vestibular Stimulation, Exercise and Light Optimization for Circadian Clock Enhancement (Velocce)
This study investigates the effects of remote interventions based on the exposure to one or more zeitgebers (i.e. adapted physical activity alone or combined with bright light exposure, or galvanic vestibular stimulation)…
- Trial name
- velocce (NCT05030389)
- Testing
- Adapted Physical Activity (APA), Bright Light Exposure (BLE), Galvanic Vestibular Stimulation (GVS)
- Where
- France
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Université de Caen Normandie
Shift Workers' Health, Time Restricted Eating
The Healthy Heroes Study
This is the first study of its kind to assess and test an intervention to improve biological rhythms and general health of shift workers, specifically first responders with San Diego Fire and Rescue.
- Conditions
- Shift Workers' Health, Time Restricted Eating, Fasting
- Trial name
- NCT03533023
- Testing
- Time Restricted Eating + Standard of Care, Standard of Care
- Where
- United States
- Volunteers
- 153 people, healthy volunteers welcome
- Sponsor
- University of California, San Diego
Sleep, Sleep Disorders, Circadian Rhythm
Effects of Delayed School Start Times on Sleep, Mental Health, and Academic Performance Among Norwegian Adolescents
The aim is to investigate whether later school start times have positive effects on high school students' sleep patterns, mental health and daytime functioning.
- Conditions
- Sleep, Sleep Disorders, Circadian Rhythm, Psychiatric Disorder, Sleepiness, Daytime
- Trial name
- NCT06657482
- Testing
- Delayed school start time
- Where
- Norway
- Volunteers
- 583 people, healthy volunteers welcome
- Sponsor
- University of Bergen
Fatigue, Shift Work Type Circadian Rhythm Sleep Disorder
Does Fatigue Coaching Improve Functioning and Fatigue in Resident Night Shifts
Emergency Medicine (EM) requires 24/7 staff coverage resulting in healthcare workers' circadian rhythm disruptions that impair clinical and cognitive performance, physical recovery, and contribute to burnout.
- Trial name
- NCT06100809
- Testing
- Personalized coaching, Nutrition handout
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Massachusetts, Worcester
Childhood Obesity, Life Style
Dietary Habits and Sleep in Childhood Obesity
Recruitment of obese children, classification according to sleep questionnaire and randomization in two groups to perform nutritional and sleep intervention. . One group receives dietary intervention through recommendations.
- Conditions
- Childhood Obesity, Life Style, Circadian Rhythms
- Trial name
- INFOB (NCT03764579)
- Testing
- sleep and diet intervention vs diet intervention
- Where
- Spain
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- University of Valencia
Sleep, Circadian Dysregulation
The Impact of Artificial Sunlight on Human Sleep and Circadian Rhythms
The purpose of this study is to examine, in healthy controls, whether LED lighting that has a color spectrum similar to that of sunlight is able to differentially impact mood, circadian rhythms, sleep, and behavior, as compared…
- Conditions
- Sleep, Circadian Dysregulation, Mood
- Trial name
- NCT03636360
- Testing
- Light
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- VA Palo Alto Health Care System