Radical prostatectomy or radiotherapy for high- and very high-risk prostate cancer: a multidisciplinary prostate cancer clinic experience of patients eligible for either treatment

Abstract

Objective: To compare radical prostatectomy (RP) vs radiotherapy (RT) with androgen-deprivation therapy (ADT) in the setting of patients with high-risk and very high-risk (VHR) prostate cancer who were deemed eligible for either therapy and made a treatment choice after consultation in a multidisciplinary prostate cancer clinic (MDPCC), and to compare the MDPCC patients' outcomes to a matched Surveillance, Epidemiology and End Results (SEER) cohort.

Patients and methods: Prospectively collected, retrospective study comparing patients who underwent RP (231 patients) vs RT+ADT (73) from 2004 to 2013. Biochemical recurrence (BCR), local recurrence, distant metastasis failure, and overall survival (OS) were calculated for each treatment group overall and according to National Comprehensive Cancer Network risk strata. A propensity score matched comparison with a SEER cohort was performed for OS.

Results: There was no difference in local recurrence (hazard ratio [HR] 2.7, 95% confidence interval [CI] 1.0-7.9; P = 0.06), distant metastasis failure (HR 2.5, 95% CI 0.8-7.8; P = 0.1) and OS (HR 1.35, 95% CI 0.4-4.8; P = 0.6) between patients undergoing RP vs RT+ADT. Patients treated via the MDPCC survived on average 16.9 months (95% CI 13.1-20.8) longer than those in the matched SEER cohort.

Conclusions: Long-term outcomes appear similar amongst patients with high-risk and VHR prostate cancer deemed eligible for either RP or RT, and treated after consultation in a MDPCC. Outcomes of the MDPCC patients were superior to those of the matched SEER cohort.

Keywords: #PCSM; #ProstateCancer; high risk; multidisciplinary; radical prostatectomy; radiotherapy.