A population‐based study of factors associated with systemic treatment in advanced prostate cancer decedents

Abstract Introduction Life‐prolonging therapies (LPTs) are rapidly evolving for the treatment of advanced prostate cancer, although factors associated with real‐world uptake are not well characterized. Methods In this cohort of prostate‐cancer decedents, we analyzed factors associated with LPT access. Population‐level databases from Ontario, Canada identified patients 65 years or older with prostate cancer receiving androgen deprivation therapy and who died of prostate cancer between 2013 and 2017. Univariate and multivariable analyses assessed the association between baseline characteristics and receipt of LPT in the 2 years prior to death. Results Of 3575 patients who died of prostate cancer, 40.4% (n = 1443) received LPT, which comprised abiraterone (66.3%), docetaxel (50.3%), enzalutamide (17.2%), radium‐223 (10.0%), and/or cabazitaxel (3.5%). Use of LPT increased by year of death (2013: 22.7%, 2014: 31.8%, 2015: 41.8%, 2016: 49.1%, and 2017: 57.9%, p