Jonathan Ledermann, MD, FRCP, University College London, London, UK, discusses three Phase III clinical trials exploring the potential of PARP inhibitors in the frontline therapy of ovarian cancer. The PAOLA-1/ENGOT-ov25 trial (NCT02477644) studied the use of olaparib plus bevacizumab, while the PRIMA/ENGOT-OV26/GOG-3012 trial (NCT02655016) aimed to assess the efficacy of niraparib, and the VELIA/GOG/3005 trial (NCT02470585) evaluated the efficacy of veliparib. Prof. Ledermann believes that we are going to see much greater use of PARP inhibitors in the first-line setting of ovarian cancer treatment. This interview took place at the European Society for Medical Oncology (ESMO) 2019 congress in Barcelona, Spain.