Clinical trials: Circadian Timing
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- Eating Condition, No Intervention; withdrawn before randomization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
Obesity, Hypertension
Timing of Sodium Intake and Nocturnal Sodium Excretion and Blood Pressure in Obese African Americans
Experimental data have shown that timing of sodium intake impacts diurnal patterns of sodium excretion. The purpose of this study is to test the hypothesis that the time of day for salt intake impacts (1) blood pressure rhythms…
- Conditions
- Obesity, Hypertension, Circadian Dysregulation, Salt; Excess
- Trial name
- NCT04021355
- Testing
- Oral sodium supplementation
- Where
- United States
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
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 and Obesity
Circadian Timing, Information Processing and Energy Balance Study
This study design will test biological and behavioral mechanisms in the cross-sectional analyses and determine the prospective effects of circadian alignment and sleep on changes in cardiometabolic risk factors.
- Trial name
- TIME (NCT04759755)
- Where
- United States
- Volunteers
- 139 people, healthy volunteers welcome
- Sponsor
- University of Utah
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