Clinical trials: Circadian Timing
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
Sleep Disorders, Circadian Rhythm
Efficacy of Ramelteon on Speeding Up Sleep in Subjects With Delayed Sleep Phase Syndrome
The purpose of this study is to evaluate the ability of ramelteon, once daily (QD), to advance the timing of sleep in individuals with delayed sleep phase syndrome.
- Trial name
- NCT00593736
- Testing
- Ramelteon
- Where
- 42 sites in United States
- Volunteers
- 132 people
- Sponsor
- Takeda
Brain Injuries, Traumatic, Sleep Initiation and Maintenance Disorders
The Feasibility of Home-Based Measurement of Circadian Timing for Veterans With TBI and Insomnia
Veterans with traumatic brain injury (TBI) frequently experience insomnia, which is linked with delayed TBI recovery, more severe functional impairment, and exacerbation of disabling TBI after-effects such as depression, chronic…
- Trial name
- Home DLMO (NCT05665764)
- Where
- United States
- Volunteers
- 31 people
- Sponsor
- VA Office of Research and Development
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
Stress
Morning Light Treatment for Traumatic Stress: The Role of Amygdala Reactivity
The purpose of this study is to determine the effect of different amounts of time of morning light on brain emotional processing.
- Trial name
- NCT04117347
- Testing
- Light therapy A via the Re-Timer®, Light therapy B via the Re-Timer®, Light therapy C via the Re-Timer®
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- University of Michigan
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
Fibromyalgia, FMS
Light Treatment to Improve Symptom Management of Fibromyalgia Syndrome
The purpose of this study is to determine the effect a morning light treatment has on improving physical function, pain intensity, and pain sensitivity in people with fibromyalgia syndrome (FMS).
- Trial name
- NCT03794908
- Testing
- Light therapy A (Bright) via the Re-Timer®, Light therapy B (Dim) via the Re-Timer®
- Where
- United States
- Volunteers
- 60 people
- Sponsor
- University of Michigan
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
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