Clinical trials: Chronobiology
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 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
Sleep
Ultra Long-Term Sleep Monitoring Using UNEEG™ Medical 24/7 EEG™ SubQ
This study aims to evaluate the agreement between automated sleep analysis by UNEEG medical's 24/7 EEG™ SubQ device using a deep learning algorithm and the consensus score of multiple sleep technologists' manual scoring of 120…
- Trial name
- ULTS (NCT04513743)
- Testing
- 24/7 EEG™ SubQ
- Where
- Denmark
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- UNEEG Medical A/S
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
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
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
Shift Work Type Circadian Rhythm Sleep Disorder, Diabetes Mellitus, Type 2
Shift Work, Heredity, Insulin, and Food Timing Study
The purpose of this study is to determine whether night time eating that coincides with elevated endogenous melatonin impairs glucose tolerance, particularly in carriers of the MTNR1B risk allele.
- Conditions
- Shift Work Type Circadian Rhythm Sleep Disorder, Diabetes Mellitus, Type 2, Circadian Rhythm Sleep Disorder, Shift Work Type, Insulin Resistance
- Trial name
- SHIFT (NCT02997319)
- Where
- United States
- Volunteers
- 365 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Insomnia Disorder, Circadian Rhythm Sleep Disorder
The Sleep Clinic Outcome and Practice Study
The goal of this clinical trial is to explore the outcome and practice treatment for sleep-wake disturbances in a Sleep Clinic. The main questions it aims to answer are: What is the practice (timing and duration of treatment…
- Trial name
- SUP (NCT06669507)
- Testing
- Chronotherapy, Cognitive Behavioral Therapy for Insomnia
- Where
- Norway
- Volunteers
- 3,400 people, healthy volunteers welcome
- Sponsor
- St. Olavs Hospital
T1DM, Sleep Disorders, Circadian Rhythm
Influence of Circadian Clock on Hormonal, Metabolic, Neurocognitive Markers in Adolescents With and Without Diabetes
Type 1 diabetes mellitus (T1DM), makes its appearance during childhood and youth, but management implications last till late adulthood.
- Conditions
- T1DM, Sleep Disorders, Circadian Rhythm, ADHD, Memory Impairment
- Trial name
- NCT04054934
- Testing
- Reversed Circadian Rhythm, Normal Circadian Rhythm
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Assaf-Harofeh Medical Center
Sleep Initiation and Maintenance Disorders, Circadian Rhythm Sleep Disorders
Light Exposure to Treat Sleep Disruption in Older People
The purpose of this study is to test whether shifts in the timing of the biological clock to a later hour (phase delay shifts of the human circadian system) can be produced in response to four successive evenings of light…
- Conditions
- Sleep Initiation and Maintenance Disorders, Circadian Rhythm Sleep Disorders, Hypersomnia
- Trial name
- NCT00427323
- Testing
- light exposure
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- National Institute on Aging (NIA)
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
Shift Work Type Circadian Rhythm Sleep Disorder, Chronobiology Disorders
Effects of Shift Work on Nurse Staff Health
Shift work deeply impacts on temporal organization leading to a circadian desynchronization, which translates into a worsening of the sleep quality and work ability during waking hours.
- Conditions
- Shift Work Type Circadian Rhythm Sleep Disorder, Chronobiology Disorders, Mood Swing, Physical Activity
- Trial name
- Turnisti (NCT03453398)
- Testing
- Shifts working hours with different schedules
- Where
- Italy
- Volunteers
- 71 people, healthy volunteers welcome
- Sponsor
- I.R.C.C.S Ospedale Galeazzi-Sant'Ambrogio
Sleep Apnea Syndromes, Insomnia
Evaluation of the Reliability and Validity of a Diagnostic Sleep Disorders Questionnaire
The study aims to develop and test a user-friendly, accessible approach to sleep assessment which can function as an initial "triage" of targeted sleep conditions, such as insomnia, insufficient sleep syndrome, sleep apnea…
- Conditions
- Sleep Apnea Syndromes, Insomnia, Insufficient Sleep Syndrome, Circadian Rhythm Disorders
- Trial name
- NCT03468400
- Where
- 2 sites in United States, Israel
- Volunteers
- 250 people, healthy volunteers welcome
- Sponsor
- Dayzz Live Well Ltd.
Jet Lag Disorder, Jet Lag
A Study on the Effectiveness of a Dietary Supplement FitoAvia for Jet Lag
Purpose of the study: Evaluation of the effects of dietary supplement Fitoavia in people with dyssynchrony Objectives of the study: 1. Assessment of the condition of patients with jet lag of 4 hours or more 2.
- Conditions
- Jet Lag Disorder, Jet Lag, Jet Lag Type Insomnia, Cognition Improvement
- Trial name
- NCT07695870
- Testing
- Fitoavia, Questionnaire and Physical Exam, cognition tests
- Where
- Russia
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- MiraxBioPharma
Sick Leave, Insomnia
Health Promoting Work Schedules: The Effect of Abolishing Quick Returns
Introduction In shift work, quick returns refer to transitions between two shifts with less than 11 hours available rest time. Twenty-three per cent of employees in European countries reported having quick returns.
- Conditions
- Sick Leave, Insomnia, Shift-Work Sleep Disorder, Psychological Distress
- Trial name
- HeWoS (NCT04693182)
- Testing
- Shift schedule without quick returns
- Where
- Norway
- Volunteers
- 2,700 people, healthy volunteers welcome
- Sponsor
- Norwegian Institute of Public Health
Sleep Disorders, Circadian Rhythm
Effectiveness of Combining Light and Non-Light Treatments for Jet Lag and Sleep Disorders
Jet lag and some sleep disorders are caused by a disruption in an individual's "internal clock." Understanding the most effective way to quickly re-adjust the body's internal clock will be beneficial for treating individuals with…
- Trial name
- NCT00387179
- Testing
- Melatonin, Methylxanthine, Light Therapy
- Where
- United States
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Osteoporosis, Circadian Rhythm Sleep Disorder, Shift Work Type
Skeletal Response to Simulated Night Shift
This small intervention study will determine if simulated short-term night shift work (NSW) negatively alters bone metabolism. The specific aim of the study is to determine if NSW acutely uncouples bone turnover markers (BTMs)…
- Trial name
- SPOTLIGHT (NCT05074277)
- Testing
- Simulated short term night shift work schedule
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Obesity, Circadian Dysregulation
OCEAN Registry: Obesity and Clock for Elegant Aging Registry
This study aims to study the relationships between obesity, circadian rhythm, and aging. The investigators set up a prospective cohort registry for morbid obesity, obesity, and normal subjects with annual follow-up.
- Conditions
- Obesity, Circadian Dysregulation, Aging, Cardiovascular Disease
- Trial name
- OCEAN (NCT02674230)
- Where
- Taiwan
- Volunteers
- 2,000 people, healthy volunteers welcome
- Sponsor
- Chang Gung Memorial Hospital