First Line Treatment With Olaparib in Combination With Bevacizumab in HRD Positive Patients

This phase IV study will include two translational research projects: 1. The analyses of the circulating-tumor DNA (ctDNA) derived from plasma samples collected at different time points (liquid biopsy). This sub-study has the aim to evaluate and monitor, through the Next Generation Sequencing approach, the evolution of the disease and the changes in the mutational status of HR-related genes which could lead to different PARPi sensitivity (Translational study no.1). 2. The generation of organotypic models that include cancer stem cells to compare the response of these cancer stem cells to that of bulk tumor cells. This approach will be hopefully able to predict the response to PARPi in ovarian cancer patients. (Translational study no.2)