New York Times this week. It's sort of an op-ed advertisement for Mt. Sinai hospital. The authors call for increased funding for clinical trials for breast cancer.
Clinical trials are a crucial part of all cancer research. I'm reading The Emperor of All Maladies: a Biography of Cancer by Siddhartha Mukherjee right now (highly recommended, by the way) and just happen to be on the part that describes how clinical trials for cancer came to be. He opens with a quote by H.J. Koning: "Randomised screening trials are bothersome. It takes ages to come to an answer, and these need to be large-scale projects to be able to answer the questions. [But...] there is no second-best option."
Indeed, many cancer trials never get off the ground because they lack participants.