Clinical trials: Circadian Rhythm Disorders
Sleep Disorders, Circadian Rhythm
Effect of Melatonin on Sleep Patterns of Resident Trainees During Night Float Shift
Anesthesiology residency requires extended and overnight shifts, which may negatively impact the quantity and quality of sleep. Previous studies have investigated the effect of night float shift work on anesthesiology resident…
- Trial name
- NCT05701969
- Testing
- Melatonin
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Virginia
Circadian Dysregulation
Body Clocks - Coordination of Peripheral and Central Oscillators
The investigators are conducting an observational trial examining young women over the course of 28 days in which we are monitoring movement, sleep, heart rate, oxygen saturation, gut physiology, light, and menstrual cycle.
- Trial name
- NCT07459764
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Stanford University
Obesity
Daytime vs. Delayed Eating Among Obese Individuals
The randomized, cross-over design study is designed to determine how timing of eating affects weight, adiposity, energy metabolism, and gene expression.
- Trial name
- NCT03354169
- Testing
- Eating Condition, No Intervention; withdrawn before randomization
- Where
- United States
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- University of Pennsylvania
Sleep Disorders, Circadian Rhythm
Nursing Activity and Quality of Hospitalized Patients' Sleep
This study is to determine the impact of night shift nurse's activity on patients' sleeping patterns in medical services including individual, clinical and environmental factors.
- Trial name
- SOMACTIV (NCT03370354)
- Testing
- Observational
- Volunteers
- 328 people, healthy volunteers welcome
- Sponsor
- Central Hospital, Nancy, France
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
Rheumatoid Arthritis
Cortisol Circadian Rhythm in Patients With RA
The European League Against Rheumatism (EULAR), acknowledging the critical issue of the complications, of long term treatment with glucocorticoids in the most recent update of the management guidelines for Rheumatoid arthritis…
- Trial name
- CortRyRA (NCT05671627)
- Testing
- DMARDs
- Where
- Greece
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- National and Kapodistrian University of Athens
Exercise Induced Hypoalgesia, Circadian Rhythm
Pain Perception and Exercise-Induced Hypoalgesia Across Circadian Rhythms
The goal of this randomized crossover clinical trial is to investigate whether exercise-induced hypoalgesia (EIH) is influenced by circadian rhythm in healthy adults aged 18-40 years.
- Conditions
- Exercise Induced Hypoalgesia, Circadian Rhythm, Pain Perception, Healthy Participants
- Trial name
- NCT07290465
- Testing
- High-Intensity Functional Training (HIFT), Supervised Deep Breathing
- Where
- Turkey (Türkiye)
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- Medipol University
Sleep Disorders, Circadian Rhythm
The Impact of Night Float on Anesthesiology Resident Sleep Patterns
Residency training requires hospital presence twenty-four hours a day. At times this necessitates working extended shifts, including night shifts, resulting in altered sleep patterns and sleep deprivation.
- Trial name
- NCT03325244
- Testing
- EEG monitor, FitBit
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Virginia
Sleep, Inadequate, Overweight and Obesity
Improving Metabolic & Mental Health in Female Healthcare Shift Workers
Circadian rhythm disruption caused by shift work alters metabolic and hormonal pathways, which accelerates chronic disease onset, leading to decreased quality and quantity of life.
- Conditions
- Sleep, Inadequate, Overweight and Obesity, Work Related Stress, Healthy Lifestyle
- Trial name
- NCT06158204
- Testing
- Lifestyle Intervention
- Where
- United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- Auburn University
Type 2 Diabetes, Circadian Rhythm
Determining Circadian Metabolic and Behavioural Rhythms in Patients with and Without Type 2 Diabetes
The goal of the present clinical descriptive study is to characterize and quantify the potential hormonal chronobiological differences between individuals with type 2 diabetes (T2D) and healthy age and weight-matched controls as…
- Trial name
- Cir-D-Brain (NCT06243172)
- Where
- Denmark
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Steno Diabetes Center Copenhagen
Obesity
Randomized Study of Daytime vs. Delayed Eating: Effect on Weight and Metabolism
The purpose of this study is to determine if, controlling for eating and sleep timing, caloric intake, and exercise, daytime vs. delayed eating affects body mass, adiposity, and energy metabolism in healthy adults.
- Trial name
- NCT04414644
- Testing
- Eating Condition
- Where
- United States
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- University of Pennsylvania
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
Shift Work Type Circadian Rhythm Sleep Disorder, Eating Behavior
Eating Behaviors in Shift Workers
This study will compare eating behaviors and measures of hunger and fullness between day and night workers in order to better understand why night workers are at increased risk for obesity and related diseases.
- Trial name
- NCT04468672
- Testing
- Portion size
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Columbia University
Healthy, Psoriasis
Sleep, Circadian Rhythm & Skin Health
The purpose of this study is to explore the mechanisms behind how sleep quality may affect skin aging, skin integrity and skin disease.
- Conditions
- Healthy, Psoriasis, Eczema, Acne
- Trial name
- NCT02457000
- Where
- United States
- Volunteers
- 59 people, healthy volunteers welcome
- Sponsor
- University Hospitals Cleveland Medical Center
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
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
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