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

26. august 2026 opdateret af: City of Hope Medical Center

The Effects of Exercise on Colorectal Cancer Promotion Following Pelvic Radiotherapy for Prostate Cancer

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.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

PRIMARY OBJECTIVE:

I. Determine the effects of exercise on mitigating molecular features in collected normal mucosa sample and any polyps identified.

SECONDARY OBJECTIVES:

I. Study longitudinal changes in predictors of colon cancer risk. II. Evaluate accrual and retention rates, as well as exercise compliance and safety.

EXPLORATORY OBJECTIVE:

I. Bank tissue from standard of care colonoscopies/flex sigmoidoscopies for exploratory biological analyses (e.g., immune cell infiltration, mutational signature analysis).

OUTLINE:

STAGE 1: Patients undergo standard of care (SOC) colonoscopy/flex sigmoidoscopy with tissue biopsy, have their Apple Health physical activity data collected and analyzed, and complete a survey. Patients determined to have low physical activity over the previous 12 months may proceed to Stage 2.

STAGE 2: Patients participate in individualized walking sessions over 10-70 minutes each, 5 times per week (225 minutes total per week), for 6 months. Patients also undergo collection of a blood sample on study and undergo SOC colonoscopy/flex sigmoidoscopy with tissue biopsy during follow-up.

After completion of study intervention, patients are followed up within 2 weeks, or up to 3 months, for completion of follow-up SOC colonoscopy/flex sigmoidoscopy.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

30

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

    • California
      • Duarte, California, Forenede Stater, 91010
        • Rekruttering
        • City of Hope Medical Center
        • Ledende efterforsker:
          • Gregory Idos
        • Kontakt:
      • Irvine, California, Forenede Stater, 92618
        • Rekruttering
        • City of Hope at Irvine Lennar
        • Ledende efterforsker:
          • Gregory Idos
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

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)

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Støttende pleje
  • Tildeling: Ikke-randomiseret
  • Interventionel model: Sekventiel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Andet: Stage 1 (coloscopy/sigmoidoscopy, biopsy, health data)
Patients undergo SOC colonoscopy/flex sigmoidoscopy with tissue biopsy, have their Apple Health physical activity data collected and analyzed, and complete a survey. Patients determined to have low physical activity over the previous 12 months may proceed to Stage 2.
Gennemfør undersøgelse
Gennemgå SOC koloskopi
Gennemgå biopsi
Andre navne:
  • Bx
  • BIOPSY_TYPE
  • Biopsi
Undergo collection of Apple Health data
Undergo SOC flex sigmoidoscopy
Andre navne:
  • Proctosigmoidoskopi
Eksperimentel: Stage 2 (individualized walking)
Patients participate in individualized walking sessions over 10-70 minutes each, 5 times per week (225 minutes total per week), for 6 months. Patients also undergo collection of a blood sample on study and undergo SOC colonoscopy/flex sigmoidoscopy with tissue biopsy during follow-up.
Hjælpestudier
Gennemgå indsamling af blodprøve
Andre navne:
  • Biologisk prøvesamling
  • Bioprøve indsamlet
  • Prøvesamling
  • Prøvekollektion
Gennemgå SOC koloskopi
Hjælpestudier
Andre navne:
  • Fysisk konditionstest
  • Fysisk funktionstest
Gennemgå biopsi
Andre navne:
  • Bx
  • BIOPSY_TYPE
  • Biopsi
Undergo SOC flex sigmoidoscopy
Andre navne:
  • Proctosigmoidoskopi
Participate in individualized walking sessions
Andre navne:
  • Aerob aktivitet

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Colon tissue molecular profiles - Whole genome sequencing
Tidsramme: From baseline up to completion of follow-up colonoscopy/flex sigmoidoscopy (up to 3 months)
Whole genome sequencing will be measured in colonic mucosa. Will be compared from baseline to 6 months post-intervention using the paired Wilcoxon signed rank test and McNemar's test for numeric and categorical features, respectively.
From baseline up to completion of follow-up colonoscopy/flex sigmoidoscopy (up to 3 months)
Colon tissue molecular profiles - Single-cell ribonucleic acid sequencing
Tidsramme: From baseline up to completion of follow-up colonoscopy/flex sigmoidoscopy (up to 3 months)
Single-cell ribonucleic acid sequencing will be measured in colonic mucosa. Will be compared from baseline to 6 months post-intervention using the paired Wilcoxon signed rank test and McNemar's test for numeric and categorical features, respectively.
From baseline up to completion of follow-up colonoscopy/flex sigmoidoscopy (up to 3 months)
Colon tissue molecular profiles - Associated molecular assays
Tidsramme: From baseline up to completion of follow-up colonoscopy/flex sigmoidoscopy (up to 3 months)
Associated molecular assays will be measured in colonic mucosa. Will be compared from baseline to 6 months post-intervention using the paired Wilcoxon signed rank test and McNemar's test for numeric and categorical features, respectively.
From baseline up to completion of follow-up colonoscopy/flex sigmoidoscopy (up to 3 months)

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Blood-based biomarkers - blood immune-inflammatory profile
Tidsramme: From baseline to 6 months post-intervention (up to 6 months)
Blood-based biomarkers - blood immune-inflammatory profile will be measured. Will be compared from baseline to 6 months post-intervention using the paired Wilcoxon signed rank test and McNemar's test for numeric and categorical features, respectively.
From baseline to 6 months post-intervention (up to 6 months)
Blood-based biomarkers - ambient deoxyribonucleic acid damage
Tidsramme: From baseline to 6 months post-intervention (up to 6 months)
Blood-based biomarkers - ambient deoxyribonucleic acid damage in circulating peripheral blood mononuclear cells will be measured. Will be compared from baseline to 6 months post-intervention using the paired Wilcoxon signed rank test and McNemar's test for numeric and categorical features, respectively.
From baseline to 6 months post-intervention (up to 6 months)
Blood-based biomarkers - accumulation of colorectal cancer associated metabolites including deoxycholic bile acid
Tidsramme: From baseline to 6 months post-intervention (up to 6 months)
Blood-based biomarkers - accumulation of colorectal cancer associated metabolites including deoxycholic bile acid will be measured. Will be compared from baseline to 6 months post-intervention using the paired Wilcoxon signed rank test and McNemar's test for numeric and categorical features, respectively.
From baseline to 6 months post-intervention (up to 6 months)

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Gregory Idos, City of Hope Medical Center

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

16. december 2026

Primær færdiggørelse (Anslået)

12. juni 2027

Studieafslutning (Anslået)

12. juni 2027

Datoer for studieregistrering

Først indsendt

17. august 2026

Først indsendt, der opfyldte QC-kriterier

25. august 2026

Først opslået (Faktiske)

27. august 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

28. august 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

26. august 2026

Sidst verificeret

1. august 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 25939 (Anden identifikator: City of Hope Comprehensive Cancer Center)
  • P30CA033572 (U.S. NIH-bevilling/kontrakt)
  • NCI-2026-05818 (Registry Identifier: CTRP (Clinical Trial Reporting Program))

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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