1. Patient-reported functional outcomes following external beam radiation therapy for prostate cancer with and without a high-dose rate brachytherapy boost: A national population-based study
- Author
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Jan van der Meulen, Julie Nossiter, Heather Payne, Ajay Aggarwal, Arunan Sujenthiran, Paul Cathcart, Brendan Berry, Matthew G. Parry, Noel W. Clarke, and Thomas E Cowling
- Subjects
Male ,medicine.medical_specialty ,medicine.medical_treatment ,Urinary system ,Brachytherapy ,Urinary incontinence ,State Medicine ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,Prostate cancer ,0302 clinical medicine ,Quality of life ,Internal medicine ,Humans ,Medicine ,Radiology, Nuclear Medicine and imaging ,Patient Reported Outcome Measures ,Prospective Studies ,business.industry ,Minimal clinically important difference ,Prostatic Neoplasms ,Hematology ,medicine.disease ,Confidence interval ,Oncology ,030220 oncology & carcinogenesis ,Cohort ,Quality of Life ,medicine.symptom ,business - Abstract
Background and purpose Little is known about the functional outcomes and health-related quality of life (HRQoL) following external beam radiation therapy (EBRT) combined with a high-dose rate brachytherapy boost (EBRT-BB) for the treatment of prostate cancer. We aimed to compare patient-reported outcomes of EBRT to those of EBRT-BB. Methods and materials Patients diagnosed with intermediate-risk, high-risk or locally advanced prostate cancer (April 2014 to September 2016), who received EBRT in the English National Health Service within 18 months of diagnosis and responded to a national patient questionnaire, were identified from the National Prostate Cancer Audit. Adjusted linear regression was used to estimate differences in functional EPIC-26 domains and HRQoL (EQ-5D-5L) between treatment groups. Non-inferiority of EBRT-BB was determined if the lower 95% confidence limit did not exceed the established minimal clinically important difference (MCID). Results Of the 13,259 included men, 12,503 (94.3%) received EBRT and 756 (5.7%) received EBRT-BB. EBRT-BB was non-inferior compared to EBRT for the urinary incontinence, sexual, bowel and hormonal EPIC-26 domains. EBRT-BB resulted in significantly worse urinary irritation/obstruction scores than EBRT (−6.1; 95% CI: −8.8 to −3.4) but uncertainty remains as to whether this difference is clinically important (corresponding MCID of 5). Conclusions There is no evidence to suggest that EBRT-BB results in any clinically important detriment in functional outcomes or HRQoL compared to men receiving EBRT only. Whilst statistically significantly worse urinary irritation/obstruction outcomes were reported in the EBRT-BB cohort, the threshold for a clinically significant difference was not exceeded and further research is required for confirmation.
- Published
- 2021
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