A Q&A session with Thomas J. Herzog, MD, the Deputy Director at the University of Cincinnati Cancer Center in Ohio, who discusses the PARP inhibitors olaparib (Lynparza, AstraZeneca), niraparib (Zejula, GSK), and rucaparib (Rubraca, Clovis Oncology); the ATHENA-MONO, ENGOT-OV16/NOVA, SOLO2, and ARIEL3 clinical trials; and the implications of the “Dear Health Care Provider” letters that were issued earlier this year regarding PARP inhibitors.