Cardiovascular Risk and Circadian Misalignment in Short Sleepers - Role of Extended Eating Period

Recruiting now · Not applicable

Conditions studied: Sleep Deprivation

In brief

Short sleep duration confers high cardiovascular and metabolic risk, but lifestyle factors and molecular mechanisms that contribute to increased blood pressure and poor glucose control during short sleep are not completely understood. Habitual short sleepers are constantly eating, the proposed studies will evaluate if this behavior contributes to heightened cardiovascular and metabolic risk. The study will evaluate if restricted eating duration (8 hours/day) could improve cardiovascular and metabolic health in habitual short sleepers.

Key facts

Study ID

NCT06070194

Run by

Pennington Biomedical Research Center

People needed

100

Starts

2023-12-05

Expected to finish

2028-06-30

Last updated by the study team

2026-02-10

Who can join

Age: 18 and older, up to 45. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Age: 18-45 years
• BMI: 25-35 kg/m2
• Habitual sleep duration: ≤6.5 h/night
• Habitual eating period: >14h/day
• Absence of chronic health conditions including hypertension (defined as systolic clinical BP of >140 or diastolic BP of >90 mmHg or use of BP lowering drugs), dyslipidemia (defined as LDL >190mg/dL or Triglycerides >400 mg/dL or use of lipid lowering medications), diabetes (defined as fasting glucose >126 mg/dL and /or HbA1C >6.5%, or use of glucose lowering medication), and cardiovascular disease. However, individuals with prehypertension, and/or prediabetes will be allowed to participate.
• Individuals with seasonal allergies will also be included.
• Women of child-bearing age will be allowed to participate if they agree to use acceptable birth control during the study period.
• Must be able to provide written informed consent.
• Ability to follow the prescribed eating duration and maintain habitual diet, sleep and physical activity.
• Use of certain mediations will be allowed including birth control, second generation antihistamines, antacids, acne-related ointments etc.

You may not qualify if…

• Irregular sleep habits / night shift / rotating shift work in past 1 month.
• Frequent travel related jet lag.
• Pregnant/ breast-feeding/ history of irregular menstrual cycles.
• Sleep disorders such as insomnia (defined as Insomnia Severity Index score ≥15), and sleep apnea (overnight oximetry defined oxygen desaturation index of >10 events/h of sleep).
• Presence of excessive daytime sleepiness (defined as Epworth Sleepiness Scale score >10).
• Recent changes in body weight (≥5%) within 3 months.
• Uncontrolled depression and /or anxiety, history of psychosis or bipolar disorder.
• Uncontrolled depression and/or depression is defined as PHQ-9 score of ≥15 or a positive response for suicidal thoughts (Q9 of the PHQ-9 - any response other than not at all).
• Any medication or condition that, in the opinion of the medical investigator, could interfere with the study outcomes or put the subject at risk by participating in the study.
• Blood or plasma donation during the past 2 months.

Where it is running

• Recruiting core Pennington — Baton Rouge, Louisiana, United States (enrolling)

Full record on ClinicalTrials.gov

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