Overall, 297 pts (baseline characteristics are shown) were included: 125 treated with ADT+Docetaxel...TSGlow signature was independently associated with CPRC-FS (HR 2.66 (95% CI, 1.17 - 6.06), p=0.02) and OS (HR 3.67 (95% CI, 1.33 - 10.10), p=0.012)….A TSGgene expression signature is predictive of taxanes benefit in mHSPC pts and may be useful to personalize the treatment in this setting.