Androgen deprivation therapy use with post-prostatectomy radiotherapy in the Prostate Cancer Outcomes Registry Victoria

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Introduction: The aim of this study is to evaluate the use of androgen deprivation therapy (ADT) with post-prostatectomy radiotherapy (PPRT) in a population-based cohort of Australian men. Methods: This is a prospective cohort of men with localised prostate cancer captured in the Prostate Cancer Outcomes Registry Victoria (PCOR-Vic), who received PPRT between January 2010 and December 2015. The primary outcome was ADT use with PPRT. Multivariate logistic regressions were used to identify patient, tumour and institutional factors influencing ADT use. Results: 485 men were included in this study – 115 (24%) had pT2 disease, 231 (48%) pT3a, 134 (28%) pT3b and 5 (1%) pT4. Eighteen (4%) men had ISUP grade 1 disease, 139 (29%) ISUP grade 2, 170 (35%) ISUP grade 3 and 158 (33%) ISUP grade 4/5, while 267 (64%) men had positive surgical margins. Median time from prostatectomy to PPRT was 8.1 months (IQR = 5.3–13.9). Sixty-six (14%) patients had ADT with PPRT. In multivariate analyses, men who had increased age (OR = 1.06; 95% CI = 1.01–1.11), seminal vesicle involvement (OR = 3.81; 95% CI = 1.63–8.91) and underwent treatment in regional centres (OR = 2.17; 95% CI = 1.08–4.33) were more likely to have ADT with PPRT. Conclusion: We reported that 14% of men treated with PPRT received ADT in a population-based cohort of Australian men, which was less than half of the proportion of ADT use with PPRT in the US. It will be of interest to evaluate the uptake of ADT with PPRT in the coming years following recent publications of level 1 evidence confirming overall survival benefits of ADT with PPRT.

Original languageEnglish
Pages (from-to)124-130
Number of pages7
JournalJournal of Medical Imaging and Radiation Oncology
Volume63
Issue number1
DOIs
Publication statusPublished - Feb 2019

Keywords

  • androgen deprivation
  • post-prostatectomy
  • prostate cancer
  • radiotherapy
  • registry

Cite this

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title = "Androgen deprivation therapy use with post-prostatectomy radiotherapy in the Prostate Cancer Outcomes Registry Victoria",
abstract = "Introduction: The aim of this study is to evaluate the use of androgen deprivation therapy (ADT) with post-prostatectomy radiotherapy (PPRT) in a population-based cohort of Australian men. Methods: This is a prospective cohort of men with localised prostate cancer captured in the Prostate Cancer Outcomes Registry Victoria (PCOR-Vic), who received PPRT between January 2010 and December 2015. The primary outcome was ADT use with PPRT. Multivariate logistic regressions were used to identify patient, tumour and institutional factors influencing ADT use. Results: 485 men were included in this study – 115 (24{\%}) had pT2 disease, 231 (48{\%}) pT3a, 134 (28{\%}) pT3b and 5 (1{\%}) pT4. Eighteen (4{\%}) men had ISUP grade 1 disease, 139 (29{\%}) ISUP grade 2, 170 (35{\%}) ISUP grade 3 and 158 (33{\%}) ISUP grade 4/5, while 267 (64{\%}) men had positive surgical margins. Median time from prostatectomy to PPRT was 8.1 months (IQR = 5.3–13.9). Sixty-six (14{\%}) patients had ADT with PPRT. In multivariate analyses, men who had increased age (OR = 1.06; 95{\%} CI = 1.01–1.11), seminal vesicle involvement (OR = 3.81; 95{\%} CI = 1.63–8.91) and underwent treatment in regional centres (OR = 2.17; 95{\%} CI = 1.08–4.33) were more likely to have ADT with PPRT. Conclusion: We reported that 14{\%} of men treated with PPRT received ADT in a population-based cohort of Australian men, which was less than half of the proportion of ADT use with PPRT in the US. It will be of interest to evaluate the uptake of ADT with PPRT in the coming years following recent publications of level 1 evidence confirming overall survival benefits of ADT with PPRT.",
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author = "Ong, {Wee Loon} and Farshad Foroudi and Evans, {Sue M.} and Jeremy Millar",
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Androgen deprivation therapy use with post-prostatectomy radiotherapy in the Prostate Cancer Outcomes Registry Victoria. / Ong, Wee Loon; Foroudi, Farshad; Evans, Sue M.; Millar, Jeremy.

In: Journal of Medical Imaging and Radiation Oncology, Vol. 63, No. 1, 02.2019, p. 124-130.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Androgen deprivation therapy use with post-prostatectomy radiotherapy in the Prostate Cancer Outcomes Registry Victoria

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AU - Foroudi, Farshad

AU - Evans, Sue M.

AU - Millar, Jeremy

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N2 - Introduction: The aim of this study is to evaluate the use of androgen deprivation therapy (ADT) with post-prostatectomy radiotherapy (PPRT) in a population-based cohort of Australian men. Methods: This is a prospective cohort of men with localised prostate cancer captured in the Prostate Cancer Outcomes Registry Victoria (PCOR-Vic), who received PPRT between January 2010 and December 2015. The primary outcome was ADT use with PPRT. Multivariate logistic regressions were used to identify patient, tumour and institutional factors influencing ADT use. Results: 485 men were included in this study – 115 (24%) had pT2 disease, 231 (48%) pT3a, 134 (28%) pT3b and 5 (1%) pT4. Eighteen (4%) men had ISUP grade 1 disease, 139 (29%) ISUP grade 2, 170 (35%) ISUP grade 3 and 158 (33%) ISUP grade 4/5, while 267 (64%) men had positive surgical margins. Median time from prostatectomy to PPRT was 8.1 months (IQR = 5.3–13.9). Sixty-six (14%) patients had ADT with PPRT. In multivariate analyses, men who had increased age (OR = 1.06; 95% CI = 1.01–1.11), seminal vesicle involvement (OR = 3.81; 95% CI = 1.63–8.91) and underwent treatment in regional centres (OR = 2.17; 95% CI = 1.08–4.33) were more likely to have ADT with PPRT. Conclusion: We reported that 14% of men treated with PPRT received ADT in a population-based cohort of Australian men, which was less than half of the proportion of ADT use with PPRT in the US. It will be of interest to evaluate the uptake of ADT with PPRT in the coming years following recent publications of level 1 evidence confirming overall survival benefits of ADT with PPRT.

AB - Introduction: The aim of this study is to evaluate the use of androgen deprivation therapy (ADT) with post-prostatectomy radiotherapy (PPRT) in a population-based cohort of Australian men. Methods: This is a prospective cohort of men with localised prostate cancer captured in the Prostate Cancer Outcomes Registry Victoria (PCOR-Vic), who received PPRT between January 2010 and December 2015. The primary outcome was ADT use with PPRT. Multivariate logistic regressions were used to identify patient, tumour and institutional factors influencing ADT use. Results: 485 men were included in this study – 115 (24%) had pT2 disease, 231 (48%) pT3a, 134 (28%) pT3b and 5 (1%) pT4. Eighteen (4%) men had ISUP grade 1 disease, 139 (29%) ISUP grade 2, 170 (35%) ISUP grade 3 and 158 (33%) ISUP grade 4/5, while 267 (64%) men had positive surgical margins. Median time from prostatectomy to PPRT was 8.1 months (IQR = 5.3–13.9). Sixty-six (14%) patients had ADT with PPRT. In multivariate analyses, men who had increased age (OR = 1.06; 95% CI = 1.01–1.11), seminal vesicle involvement (OR = 3.81; 95% CI = 1.63–8.91) and underwent treatment in regional centres (OR = 2.17; 95% CI = 1.08–4.33) were more likely to have ADT with PPRT. Conclusion: We reported that 14% of men treated with PPRT received ADT in a population-based cohort of Australian men, which was less than half of the proportion of ADT use with PPRT in the US. It will be of interest to evaluate the uptake of ADT with PPRT in the coming years following recent publications of level 1 evidence confirming overall survival benefits of ADT with PPRT.

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KW - post-prostatectomy

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