Platino-resistance in Ovarian Cancer

"Blood samples, tumor biopsy specimens and ascites samples will be collected at different time points (if feasible, according to the samples taken in the standard practice):~* before treatment initiation (blood sample),~* during hospitalisation for surgery (blood sample),~* during follow-up consultations (blood sample).~If tumor biopsy and/or ascites sampling are performed during the standard care, a sample will be collected for the study."