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Role of novel hormonal therapies in the management of non-metastatic castration-resistant prostate cancer
Abstract
BACKGROUND: Novel hormonal therapies have been recently investigated in non-metastatic castration-resistant prostate cancer (CRPC). We performed a meta-analysis to assess the efficacy and safety of novel hormonal therapies in non-metastatic CRPC.
MATERIALS AND METHODS: The primary outcome was metastasis-free survival (MFS). The secondary endpoints were overall survival (OS), time to PSA progression and safety. We planned a subgroup analysis according to the PSA doubling time (> 6 vs < 6 months), Eastern Cooperative Oncology Group (ECOG) performance status (1 vs 0) and concomitant use of bone-targeting agent (yes vs no).
RESULTS: Pooled analysis of novel hormonal therapies revealed significantly increased MFS compared with placebo (hazard ratio (HR): HR = 0.32, 95% CI 0.25-0.41; p < 0.00001). The subgroup analysis showed a statistically significant MFS advantage in favour of men with the lower ECOG performance status. Other secondary endpoints favoured the novel hormonal therapies. The relative risk (RR) of grade ≥ 3 adverse events and ≥ 3 hypertension was 1.31 and 1.39, respectively.
CONCLUSIONS: This study confirmed the efficacy and safety of the novel hormonal therapies in non-metastatic CRPC.