Comment by TaupeRanger

The word "effective" is used in a misleading way in a huge number of cancer studies. Reducing disease progression is not a particularly good metric of "effectiveness", even less so in mice models. What you want to see is a measure of overall survival (i.e. you survived cancer but died of something else because your health declined overall, making your survival moot) and a measure of quality of life, which is often completely ignored. The gap from "tumors regressed in mice" to the measures I just listed is so astronomically huge as to make these kinds of studies almost entirely unexciting.