The U.S. FDA’s Oncologic Drugs Advisory Committee meets April 28 to discuss the future of Astrazeneca plc and Merck & Co. Inc.’s supplemental NDA for Lynparza (olaparib) for an expanded label to treat prostate cancer. It has a few bones to pick. The FDA said it is concerned that the efficacy and safety have not been demonstrated outside of the small population of patients with tumor BRCA mutations and that the addition of olaparib to abiraterone may cause harm in patients who are definitively negative for tumor BRCA mutations.