Clinical trials: Circadian Timing
Liver Cirrhosis
Sleep Timing and Circadian Preferences in A Sample of Egyptian Patients With Hepatic Cirrhosis
Individuals with hepatic cirrhosis (n=50) and healthy controls (n=30) were recruited. Sleep quality, sleep timing parameters and circadian preference were evaluated using the Pittsburgh Sleep Quality Index (PSQI), Sleep Timing…
- Trial name
- NCT02710227
- Testing
- (PSQI), (STQ).
- Where
- Egypt
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Sherief Abd-Elsalam
Delayed Sleep Phase
Delayed Sleep Timing in Teens Study
This study will (1) comprehensively characterize the substance use disorder (SUD) risk profile associated with adolescent Delayed Sleep Phase (DSP), and (2) probe whether SUD risk is diminished by altering sleep/circadian timing.
- Trial name
- NCT03806296
- Testing
- Increase morning bright light, Decrease evening blue light, Sleep scheduling
- Where
- United States
- Volunteers
- 142 people, healthy volunteers welcome
- Sponsor
- University of Pittsburgh
Obesity
Sleep Timing and Insulin Resistance in Adolescents With Obesity
This study examines the relationship between sleep timing and insulin resistance in adolescents with obesity. The investigators also aim to develop a physiologically-based mathematical model of adolescent sleep/wake and circadian…
- Trial name
- NCT02585830
- Where
- United States
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Overweight Adolescents, Sleep
Improving Sleep Health and Circadian Timing to Support Cardiometabolic Health in Adolescents
Many teenagers get too little and late timed sleep. High body weight and diabetes are increasing in teenagers as well. This study plans to learn more about whether improving sleep habits can help improve how the body regulates…
- Conditions
- Overweight Adolescents, Sleep, Insulin Sensitivity
- Trial name
- REST (NCT07618117)
- Testing
- Circadian/Sleep (C/S)
- Volunteers
- 60 people
- Sponsor
- University of Colorado, Denver
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
Obesity, Chronobiology Disorders
Chronobiology and Childhood Obesity in a Mediterranean Spanish Population
The main objective is to investigate chronobiological aspects of childhood obesity studying the potential relationship between meal patterns and circadian rhythmicity in a cross-sectional sample of obese, overweight and normal…
- Trial name
- ONTIME-JR (NCT02895282)
- Where
- 2 sites in Spain
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Universidad de Murcia
Circadian Rhythm Sleep Disorder, Circadian Rhythm Disorder Caused by Drug
Changes in Circadian Rhythm After Anaesthesia in Children
In this study the investigators will examine the effect of general anesthesia and surgery on sleep duration and sleep quality in children, using questionnaires and a sleep diary.
- Conditions
- Circadian Rhythm Sleep Disorder, Circadian Rhythm Disorder Caused by Drug, Circadian Rhythm Sleep Disorder, Jet Lag Type, Jet Lag
- Trial name
- CLOCKSkids (NCT05618405)
- Where
- Netherlands
- Volunteers
- 100 people
- Sponsor
- Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
Pregnancy, Prolonged
Effects of Sleep, Fatigue, and Timing of Post-dates Inductions Among Nulliparas
This randomized clinical trial will examine if there are any differences between post-dates inductions (inductions after 40 weeks of pregnancy) begun in the morning compared to the evening for first-time mothers.
- Trial name
- NCT01542151
- Testing
- Time of labor induction
- Where
- United States
- Volunteers
- 72 people
- Sponsor
- University of California, San Francisco
ADHD
Impact of Short and Mistimed Sleep on Adolescents With ADHD: The Adolescent Attention and Circadian Timing Study
Many adolescents go to bed late and wake up early for school. Science is only beginning to understand how sleep schedules can affect them.
- Trial name
- AACT (NCT07684417)
- Testing
- Aligned sleep extension, Misaligned sleep extension
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- Children's Hospital Medical Center, Cincinnati