Obesity Trial, Recruiting

Written by an AI model from ClinicalTrials.gov eligibility criteria and checked on a sample basis. Please confirm against the original criteria.

Who might be able to join this trial:

• You are 26 years of age or older
• Your body weight falls into a higher BMI category (BMI of 27 or above for most people, or 25 or above if you are of Asian heritage, either fully or partially)
• You are not getting enough physical activity — specifically, less than 150 minutes per week of moderate-to-vigorous activity, as recommended by US guidelines
• You typically spend 3 or more hours per day on recreational screen time (such as TV, phone, or computer for leisure), and this usually continues until at least 9:00pm
• On a typical night, you eat or drink something with calories after 8:00pm
• You meet at least 2 of the following health markers (confirm with trial site):
  • A large waist size (over 40 inches for men, over 35 inches for women)
  • High blood pressure (above 130/85 mmHg) or you take medication to control blood pressure
  • Low levels of "good" (HDL) cholesterol (below 40 mg/dL for men, below 50 mg/dL for women)
  • High triglycerides (fats in the blood above 150 mg/dL) or you take medication to control them
  • Higher-than-normal fasting blood sugar (100 mg/dL or above) or you take medication to control it

Who may not be able to join:

• You have a condition that disrupts sleep, including pregnancy, breastfeeding, being a nighttime caregiver for others, a sleep disorder, or severe sleep apnea
• You have a history of episodes of low blood sugar (hypoglycemia)
• You have a pacemaker
• You drink more than 4 cups of coffee (or the equivalent in caffeine) per day, or you consume caffeine after 5:00pm
• You are currently taking part in another physical activity, diet, or weight loss program or research study
• Your weight has gone up or down by 5% or more in the last three months
• You use illegal drugs
• You use THC (marijuana) in any form, including smoking or edibles
• You drink alcohol heavily (8 or more drinks per week for women, 15 or more per week for men)
• You currently smoke or use nicotine in any form, including vaping, e-cigarettes, patches, or gum
• You take certain medications that strongly affect blood sugar or sleep, such as insulin, corticosteroids, growth hormone, or melatonin
• You have a current or past diagnosis of an eating disorder (such as anorexia, bulimia, binge eating disorder, or night eating syndrome), or you report eating disorder behaviours
• Your blood sugar is unstable or poorly managed, including fasting blood sugar above 125 mg/dL
• You have a serious ongoing illness linked to weight changes, such as HIV/AIDS, active cancer, or an uncontrolled thyroid condition
• You work shift work (non-standard or rotating work hours)
• You have travelled across more than one time zone in the 3 months before the study, or plan to do so during the study
• You currently use blue-light-blocking glasses or products in the evening or at night
• Your blood pressure is very high and not well controlled (systolic at or above 165 or diastolic at or above 100 mmHg)
• You have any condition or situation that would make it difficult to follow the study's requirements (confirm with trial site)
• Your primary personal phone is not an Android device

Important: Always verify eligibility with the trial site directly before applying.