...• Biological effects in the primary tumour following a short pre-operative course of treatment with Olaparib in patients with platinum sensitive relapsed ovarian cancer; the biological effects are assess in terms of the degree of PAR or PARP-1 inhibition (in tissue and ctDNA) • Germline HRD mutations and tissue mutation with respect to BRCA1/2, RAD51B, RAD51C, RAD51D, PPM1D, FANCM, BRIP1, PALB2 and BARD1 (in tissue and ctDNA)• Generate initial clinical efficacy data for future studies (RECIST 1.1)...