Status:

RECRUITING

Long Term Impact of Time-Restricted Eating on Parameters of Cardiometabolic Health

Lead Sponsor:

University of California, San Diego

Collaborating Sponsors:

Salk Institute for Biological Studies

Conditions:

Metabolic Syndrome

Pre-diabetes

Eligibility:

All Genders

18-75 years

Phase:

PHASE2

Brief Summary

In a randomized controlled trial, the investigators intend to measure the health impact of time restricted eating (TRE) in patients with metabolic syndrome (with elevated blood pressure and at least 2...

Detailed Description

Circadian rhythms optimize nutrient homeostasis by orchestrating catabolic and anabolic metabolism to appropriate times of the 24 hour day. Chronic circadian rhythm disruption predisposes individuals ...

Eligibility Criteria

Inclusion

  • Inclusion criteria:
  • Age: 18-75 years
  • HbA1c: 5.7% to 7.0%
  • Metabolic syndrome (must meet 3 criteria): Elevated systolic blood pressure ≥ 130 mm Hg or diastolic blood pressure ≥ 85 mm Hg (required) and 2 of the following:
  • Elevated waist circumference:
  • In Asians: ≥ 90 cm in men, ≥80 cm in women
  • In all other races: ≥ 102 cm in men, ≥ 88 cm in women
  • Fasting plasma triglycerides ≥ 150 mg/dL, or on drug treatment for elevated triglycerides
  • Reduced High-density lipoprotein (HDL)- cholesterol \< 40 mg/dL in males or \< 50 mg/dL in females, or drug treatment for reduced HDL-cholesterol
  • Fasting glucose ≥ 100 mg/dL
  • Own a smartphone (Apple iOS or Android OS)
  • Baseline eating period ≥12 hour/day
  • Patients on a stable dose of cardiovascular medications (HMG CoA reductase inhibitors (statins), metformin, other lipid-modifying drugs (including over-the-counter drugs such as red yeast rice and fish oil), anti-hypertensive drugs, GLP-1R agonists and SGLT2 inhibitors) for at least 3 months are allowed.
  • Exclusion Criteria:
  • Use of sulfonylurea or insulin.
  • HbA1C \> 7.0%
  • Pregnant or breastfeeding. Anyone of reproductive age will receive pregnancy test prior to DXA scan.
  • Caregiver for a dependent requiring frequent nocturnal care / sleep interruptions.
  • Shift workers with variable (e.g. nocturnal) hours.
  • Frequent travel to different time zones during the study period.
  • Active tobacco use or illicit drug use or history of treatment for alcohol abuse.
  • History of major adverse cardiovascular event within the past year (acute coronary syndrome, percutaneous coronary intervention, coronary artery bypass graft surgery, hospitalization for congestive heart failure, stroke/transient ischemic attack).
  • Uncontrolled arrhythmia (i.e. rate -controlled atrial fibrillation / atrial flutter are not exclusion criteria)
  • History of thyroid disease requiring dose titration of thyroid replacement medication(s) within the past 3 months (i.e. hypothyroidism on a stable dose of thyroid replacement therapy is not an exclusion).
  • History of adrenal disease.
  • History of malignancy undergoing active treatment, except non-melanoma skin cancer.
  • Known history of type 1 diabetes.
  • History of an eating disorder.
  • History of cirrhosis.
  • History of stage 4 or 5 chronic kidney disease or requiring dialysis.
  • Currently enrolled in a weight-loss or weight-management program.
  • On a special or prescribed diet for other reasons (e.g. Celiac disease).
  • Uncontrolled psychiatric disorder (including history of hospitalization for psychiatric illness).

Exclusion

    Key Trial Info

    Start Date :

    September 22 2025

    Trial Type :

    INTERVENTIONAL

    Allocation :

    ESTIMATED

    End Date :

    October 1 2031

    Estimated Enrollment :

    140 Patients enrolled

    Trial Details

    Trial ID

    NCT07189234

    Start Date

    September 22 2025

    End Date

    October 1 2031

    Last Update

    September 23 2025

    Active Locations (1)

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    Altman Clinical and Translational Research Institute

    La Jolla, California, United States, 92093