At the 2019 Congress of the European Society of Medical Oncology, PARP inhibitors continued their victory march. With the success of the PAOLA-1 trial, reported in Friday's plenary session, as well as the PRIMA and VELIA/GOG-3005 trials, "we've got new front-line data that really introduces a paradigm shift into the way we're going to treat ovarian cancer in the coming years," Jonathan Ledermann, professor of medical oncology at University College London, told the audience at a session on new options on ovarian cancer.