Abstract
PARP inhibitors (PARPi) gained major interest among prostate cancer researchers in the last few years, thanks to the outstanding results coming from the PROfound an TRITON2 studies. Following that, PARPi gained approval also in metastatic, castration-resistant prostate cancer (mCRPC) with mutations in homologous repair (HR) – related genes. Nevertheless, some questions still remain unanswered concerning the management of drug resistance and PARPi-sensitivity in patients harboring alterations in various DNA damage response (DDR) related genes, not only BRCA1 and BRCA2.In this perspective article we focus on the key issues concerning PARPi in mCRPC, specifically those related to drug sensitivity and resistance mechanisms, exploring the possible role of combination therapeutic approaches and trying to depict potential future addresses in translational oncology research.
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