The patient's local archival tumor tissue (FFPE) from original tumor, or from the metastatic tissue, will be collected to potentially identify if they - at a later stage of their disease - will be likely to benefit from treatment with any of the investigational cancer drugs available to Allarity Therapeutics. Data from this study can further be used to explore in a retrospective fashion, sensitivity to other chemotherapeutic drugs previously used in the treatment of their ovarian cancer, to investigate whether or not the DRP® method can predict and confirm the obtained sensitivity to the prior given drugs as well as prospective analyses guiding the Investigators on future treatments.