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Testing the Effects of Exercise on Colorectal Cancer Development After Treatment With Pelvic Radiation Therapy for Prostate Cancer

Sponsor: City of Hope Medical Center • ClinicalTrials.gov ID: NCT07790718

Registry updated: 2026-08-28

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Description

This clinical trial evaluates the effects of exercise therapy on signs of colorectal cancer in colon tissue and blood in people who completed pelvic radiation therapy for prostate cancer. People who get radiation in the pelvic area have a higher chance of developing colon cancer years later. This is because radiation can cause new mutations and inflammation. Research shows that exercise lowers colon cancer risk by about 30%. The results of this trial may help researchers better understand how exercise affects the development of colorectal cancer in patients who were treated with pelvic radiation therapy for prostate cancer.

Interventions

Aerobic Exercise (Other)
Participate in individualized walking sessions
Biopsy Procedure (Procedure)
Undergo biopsy
Biospecimen Collection (Procedure)
Undergo collection of blood sample
Colonoscopy (Procedure)
Undergo SOC colonoscopy
Data Collection (Other)
Undergo collection of Apple Health data
Physical Performance Testing (Other)
Ancillary studies
Questionnaire Administration (Other)
Ancillary studies
Sigmoidoscopy (Procedure)
Undergo SOC flex sigmoidoscopy
Survey Administration (Other)
Complete survey

Eligibility criteria

Inclusion Criteria: * Documented informed consent of the participant and/or legally authorized representative * Assent, when appropriate, will be obtained per institutional guidelines * Agreement to allow the use of archival tissue from diagnostic tumor biopsies * If unavailable, exceptions may be granted with study principal investigator (PI) approval * Age: 40-80 years * Body mass index (BMI): \> 25 kg/m\^2 * Has Apple Health application (app) on personal device with valid iOS operating software (i.e., iOS 15.0 or higher) * Has a registered MyChart/MyCityofHope account (or be willing to register for one) and the app downloaded onto personal device * Ability to read and understand English to review MyChart/MyCityofHope on-screen instructions to sync and share Apple Health data, and for safety during exercise testing * Previously diagnosed with localized prostate cancer * Completed pelvic radiotherapy 12-20 months ago * Presence of abnormalities (e.g., polyps, lesions) in the colon * Assessed for exercise participation as per pre-screening clearance via the Physical Activity Readiness Questionnaire (PAR-Q+) (stage 2 only) * Low physical activity, defined by \< 5,000 steps/day over the last 12 months as per Apple Health data (stage 2 only) Exclusion Criteria: * Enrollment in any other program (e.g., weight loss program) that may alter the impact of exercise on outcomes * Presence of any other concurrent, actively treated malignancy * Distant metastatic malignancy of any kind * Any other condition that would, in the Investigator's judgment, contraindicate the patient's participation in the clinical study due to safety concerns with clinical study procedures * Prospective participants who, in the opinion of the investigator, may not be able to comply with all study procedures (including compliance issues related to feasibility/logistics)

Conditions

Colon Polyp Colorectal Carcinoma Localized Prostate Carcinoma Stage I Prostate Cancer AJCC v8 Stage II Prostate Cancer AJCC v8 Stage III Prostate Cancer AJCC v8

Locations

City of Hope Medical Center — Duarte, California, United States
City of Hope at Irvine Lennar — Irvine, California, United States

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Official Source

Data sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health.

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