NCT04759755Completed
Circadian Timing, Information Processing and Energy Balance Study
Circadian and Sleep Pathways to Cardiometabolic Disease Risk: Role of Neurobehavioral Processes
Source: ClinicalTrials.gov · Last updated 1 Oct 2026
Brief summary (registry, in English)
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.
- Status (registry)
- Completed
- Study type
- Observational
- Enrollment
- 139 (actual)
- First submitted
- 13 Feb 2021
- Start date
- 29 May 2019
- Primary completion date
- 31 Mar 2023
- Lead sponsor
- University of Utah
- Diseases
- Obesity
- NCT number
- NCT04759755
What you commit to
- Study type: Observational
- Participants enrolled: 139
- From 29 May 2019 to the primary completion date, 31 Mar 2023
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Use of hypnotic, stimulant or medications know to affect melatonin concentrations such as beta blockers, daily NSAIDs;
- Currently on a restrictive of special diet.
Other illness
- High risk or presence of sleep disorders (obstructive sleep apnea (OSA), restless legs syndrome, or insomnia) as assessed by the questionnaires and overnight OSA screening;
- History of cognitive or neurological disorders;
- Presence of major psychiatric disorders, current alcohol or substance abuse as determined by screening questionnaires or self-report;
- Unstable or serious medical illness;
Lab values
- Diagnosed with diabetes or HbA1c\>7 at screening or taking medications known to affect glucose;
Other
- Overnight shift work or travel over 2 time zones in the past 2 months;
- Current smoking;
- Daily caffeine intake \>300 mg;
- Pregnant or lactating;
Who the study is looking for
- Demonstrate habitual sleep onset time between 10:00 pm-3:00 am on actigraphy;
- able to read and write in English;
- BMI 25-39.9 (overweight, class one obesity, or class two obesity)
Age in the registry: 18 years to 60 years · Sex: All · Accepts healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| University of Utah Coordinator of this site? Confirm its status | Salt Lake City | United States | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.