Time-Restricted Eating Versus Nutritional Counseling for the Reduction of Radiation or Chemoradiation Tx Side Effects in Patients With Prostate, Cervical, or Rectal Cancers

This phase II trial studies how well time-restricted eating works in reducing side effects of radiation or chemoradiation side effects when compared to nutritional counseling among patients with prostate, cervical, and rectal cancers. Time-restricted eating, also called short term fasting or intermittent fasting, is an eating plan that alternates between not eating food (fasting) and non-fasting periods. Nutritional counseling involves being asked to follow a healthy, balanced diet that includes instructions on what kinds of food are better tolerated during radiation and chemoradiation therapy. This trial may help researchers determine if certain diets may improve the anti-cancer effects of radiation therapy and reduce the side-effects of this treatment. If successful, these diets may be integrated into the future treatment of prostate, cervical, and rectal cancers.

NCT Number	NCT05722288
Lead Sponsor	City of Hope Medical Center Collaborators: National Cancer Institute (NCI)
Conditions	Localized Prostate Carcinoma, Locally Advanced Cervical Carcinoma, Locally Advanced Rectal Carcinoma, Malignant Solid Neoplasm, Recurrent Prostate Carcinoma, Stage I Prostate Cancer AJCC v8, Stage IB Cervical Cancer FIGO 2018, Stage IB2 Cervical Cancer FIGO 2018 +10 more
Enrollment	49 participants
Start Date	2023-01-20
Primary Completion	2027-07-05 (estimated)
Study Completion	2027-07-05 (estimated)
Updated on ClinicalTrials.gov	2026-08-13