About this trial
This phase II trial compares the effect of time-restricted eating (TRE) and glucagon-like peptide-1 (GLP1) receptor agonists (RA), semaglutide and tirzepatide, to an American Heart Association (AHA) heart healthy diet (HHD) intervention on heart and blood vessel health (cardiovascular system) and how the body processes food for energy (metabolic system) in prostate cancer patients undergoing androgen deprivation therapy (ADT). Prostate cancer patients who are receiving hormonal therapy (ADT) are at an increased risk of cardiovascular disease. This is thought to be due to treatment-related metabolic changes which may result in increased weight, body fat, insulin resistance and an increased risk of heart attack, stroke or other heart and blood vessel problems. TRE (also known as intermittent fasting) is an eating plan that alternates between fasting and non-fasting periods. This approach limits calorie intake to a specific window of time each day. GLP1-RAs, semaglutide and tirzepatide are in a class of medications called incretin mimetics. They work by helping the pancreas to release the right amount of insulin when blood sugar levels are high. Insulin helps move sugar from the blood into other body tissues where it is used for energy. They also slow the movement of food through the stomach and may decrease appetite and cause weight loss. The AHA HHD guidelines may be an effective method to help people learn about following a heart healthy eating plan. This may lower their risk of cardiovascular disease. Metabolic interventions, TRE and GLP1-RA, may be more effective than an AHA HHD intervention alone in improving cardiovascular and metabolic health in prostate cancer patients undergoing ADT.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Documented informed consent of the participant
English, Spanish or Mandarin-speaking
Agreement to allow the use of archival tissue from diagnostic tumor biopsies
If unavailable, exceptions may be granted with study principal investigator (PI) approval
Disqualifiers
Currently engaging in strict macronutrient/time limited diet, including ketogenic, low-carb, paleo, or warrior diet
Currently under GLP1-RA therapy
Poorly controlled diabetes
Unable to undergo time-restricted diet
Trial design
Parallel
Treatments tested in this trial
Antiandrogen Therapy
DrugGiven ADT
Behavioral Intervention
BehavioralReceive fasting reminders via Oncpatient Companion Mobile Application
Biospecimen Collection
Procedure/SurgeryUndergo blood sample collection
Cardiac Computerized Tomographic Angiography
Procedure/SurgeryUndergo a coronary computerized tomography angiography
Computed Tomography
Procedure/SurgeryUndergo CT
Electronic Health Record Review
Other interventionAncillary studies
Internet-Based Intervention
Other interventionComplete survey and food diary collection via Oncpatient Companion Mobile Application
Lifestyle Counseling
BehavioralReceive diet and lifestyle counseling
Medical Device Usage and Evaluation
Other interventionWear an activity tracker
Nutritional Intervention
Other interventionReceive AHA HHD guidelines
Nutritional Intervention
Other interventionReceive AHA Life Essential 8 recommendations with personalized caloric intake
Questionnaire Administration
Other interventionAncillary studies
Radiation Therapy
RadiationUndergo RT
Referral
Other interventionReceive a referral to an endocrinologist
Semaglutide
DrugGiven SC
Short-Term Fasting
Other interventionParticipate in an overnight fast
Tirzepatide
DrugGiven SC
Treatment groups
Trial outcomes
Primary outcomes
Changes in the 10-year risk of cardiovascular disease
The changes in the American Heart Association Predicting Risk of cardiovascular disease (CVD) EVENTs (AHA PREVENT) risk score will be compared between glucagon-like peptide-1 receptor agonist (GLP1-RA) versus (vs.) AHA heart healthy diet (AHA HHD) interventions using a 2-group t-test with a 0.050 one-sided significance level.
Changes in the 10-year risk of cardiovascular disease
The changes in the AHA PREVENT risk score will be compared between time-restricted eating (TRE) vs. AHA HHD interventions using a 2-group t-test with a 0.050 one-sided significance level.
Secondary outcomes
Changes in the 10-year risk of cardiovascular disease
The changes in the AHA PREVENT risk score will be compared between GLP1-RA vs. TRE interventions.
Incidence of de novo metabolic syndrome
Changes in visceral adiposity
Will be measured using computed tomography and bioelectrical impedance analysis.
Changes in muscle mass
Will be measured using computed tomography and bioelectrical impedance analysis.
Sponsors and contacts
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City of Hope Medical Center
Lead sponsor
National Cancer Institute (NCI)
Collaborator