This study aims to analyze the factors that influence the progression-free survival time of PCa patients after endocrine therapy in an attempt to improve the prognosis of the disease.

目的：前列腺癌内分泌治疗后发现进展速度存在较大差异，为了改善其预后，本文探讨前列腺癌内分泌治疗后无进展生存期的影响因素。

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The study was designed to measure progression-free survival, which is a measurement of the time from the start of treatment until the disease gets worse or the patient dies, and overall survival, which is a measurement of time from the start of treatment until death.

WSJ: Roche Breast-Cancer Treatment Advances