I’ve seen many treatments come and go since I started working in gynecologic oncology 30 years ago. At that time, we treated all patients with advanced ovarian cancer the same way, as if their cancers were all the same. There was just one treatment option we could offer them — a grueling chemotherapy regimen that would extend the lives of some, by only a few years at most, leaving them nauseous, weak and exhausted from a slew of side effects.