NCT05645237

Brief Summary

The study primarily aims at evaluating health-related quality of life after radiotherapy for prostate cancer, using modern hypofractionated radiotherapy schedules. Study design is a prospective observational cohort study. All patients give written informed consent and fill out online validated questionnaires before, during, and after radiotherapy (yearly) up to 5 years post-treatment.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
600

participants targeted

Target at P75+ for all trials

Timeline
50mo left

Started Apr 2019

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress64%
Apr 2019Jun 2030

Study Start

First participant enrolled

April 8, 2019

Completed
3.6 years until next milestone

First Submitted

Initial submission to the registry

November 28, 2022

Completed
11 days until next milestone

First Posted

Study publicly available on registry

December 9, 2022

Completed
4.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2027

Expected
3 years until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2030

Last Updated

August 19, 2025

Status Verified

August 1, 2025

Enrollment Period

8.2 years

First QC Date

November 28, 2022

Last Update Submit

August 14, 2025

Conditions

Keywords

prostate cancerradiotherapyhypofractionationhealth-related quality of life

Outcome Measures

Primary Outcomes (3)

  • EPIC questionnaire score on urinary domain

    Expanded Prostate Cancer Index Composite (EPIC) Urinary Domain score: a 0 to 100 scale with higher scores representing better HRQOL.

    Year 1 - Year 4

  • EPIC questionnaire score on bowel domain

    Expanded Prostate Cancer Index Composite (EPIC) Bowel Domain score: a 0 to 100 scale with higher scores representing better HRQOL.

    Year 1 - Year 4

  • Sexual functioning score on IIEF-5 questionnaire

    Sexual functioning score on International Index of Erectile Function (IIEF-5) questionnaire: 1 to 25 scale, higher scores imply better function

    Year 1- Year 4

Secondary Outcomes (7)

  • Acute rectal bleeding, on symptom checklist (patient-reported)

    During radiotherapy - 3 months after radiotherapy

  • Acute mucous discharge, on symptom checklist (patient-reported)

    During radiotherapy - 3 months after radiotherapy

  • Late moderate to severe urinary incontinence

    Year 1 - Year 4

  • Late moderate to severe urinary frequency during the night

    Year 1 - Year 4

  • Late moderate to severe incontinence for stools

    Year 1 - Year 4

  • +2 more secondary outcomes

Other Outcomes (4)

  • General health score on EQ-5D-5L questionnaire

    Year 1- Year 4

  • Acute moderate to severe rectal discomfort

    During radiotherapy - 3 months after radiotherapy

  • Late watery bowel movements

    Year 1 - Year 4

  • +1 more other outcomes

Study Arms (6)

Applied radiotherapy protocol (subcohort) 1

60 Gy in 20 fractions of 3 Gy external beam radiotherapy

Radiation: radiotherapy

Applied radiotherapy protocol (subcohort) 2

42.7 Gy in 7 fractions of 6.1 Gy external beam radiotherapy

Radiation: radiotherapy

Applied radiotherapy protocol (subcohort) 3

38 Gy in 4 fractions of 9 Gy stereotactic external beam radiotherapy

Radiation: radiotherapy

Applied radiotherapy protocol (subcohort) 4

27 Gy in 2 fractions of 13.5 Gy brachytherapy

Radiation: radiotherapy

Applied radiotherapy protocol (subcohort) 5

72 Gy in 36 fractions of 2 Gy postoperative external beam radiotherapy

Radiation: radiotherapy

Applied radiotherapy protocol (subcohort) 6

70 Gy in 35 fractions of 2 Gy on prostate combined with 52 Gy in 28 fractions of 2 Gy on pelvic lymph node areas, external beam radiotherapy.

Radiation: radiotherapy

Interventions

radiotherapyRADIATION

Radiotherapy is delivered with linear accelerators or cyberknife (external beam radiotherapy), or local irradiation with high dose rate brachytherapy (brachytherapy)

Applied radiotherapy protocol (subcohort) 1Applied radiotherapy protocol (subcohort) 2Applied radiotherapy protocol (subcohort) 3Applied radiotherapy protocol (subcohort) 4Applied radiotherapy protocol (subcohort) 5Applied radiotherapy protocol (subcohort) 6

Eligibility Criteria

Sexmale
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Clinically T1c-T4, N0 (or N+ in case of EBRT-LN+), M0 prostate cancer patients referred for radiotherapy to the Erasmus Medical Center.

You may qualify if:

  • Clinically T1c-T4, N0 (or N+ in case of EBRT-LN+), M0 prostate cancer patient referred for radiotherapy.
  • Willing and capable to fill out Dutch questionnaires on health-related items at a computer (online questionnaires).
  • Signed written Informed Consent.

You may not qualify if:

  • Previously radiation treatment in the pelvic region, for any reason.
  • Diagnosed with other tumor in the past 12 months or known with tumor progression of another tumor.
  • Postoperative radiotherapy with dose levels \< 72 Gy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Radiotherapy, Erasmus MC Cancer Center

Rotterdam, South Holland, 3015 GD, Netherlands

Location

Related Publications (2)

  • Wei JT, Dunn RL, Litwin MS, Sandler HM, Sanda MG. Development and validation of the expanded prostate cancer index composite (EPIC) for comprehensive assessment of health-related quality of life in men with prostate cancer. Urology. 2000 Dec 20;56(6):899-905. doi: 10.1016/s0090-4295(00)00858-x.

    PMID: 11113727BACKGROUND
  • Utomo E, Blok BF, Pastoor H, Bangma CH, Korfage IJ. The measurement properties of the five-item International Index of Erectile Function (IIEF-5): a Dutch validation study. Andrology. 2015 Nov;3(6):1154-9. doi: 10.1111/andr.12112. Epub 2015 Oct 9.

    PMID: 26453539BACKGROUND

Related Links

MeSH Terms

Conditions

Prostatic Neoplasms

Interventions

Radiotherapy

Condition Hierarchy (Ancestors)

Genital Neoplasms, MaleUrogenital NeoplasmsNeoplasms by SiteNeoplasmsGenital Diseases, MaleGenital DiseasesUrogenital DiseasesProstatic DiseasesMale Urogenital Diseases

Intervention Hierarchy (Ancestors)

Therapeutics

Study Officials

  • Luca Incrocci, MD PhD

    Erasmus Medical Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical Epidemiologist, Project Leader, PhD

Study Record Dates

First Submitted

November 28, 2022

First Posted

December 9, 2022

Study Start

April 8, 2019

Primary Completion (Estimated)

June 1, 2027

Study Completion (Estimated)

June 1, 2030

Last Updated

August 19, 2025

Record last verified: 2025-08

Locations