[cannonedhamster]

The other problem with cancer is that there are different types of cancer cells. There's the fast dividing and there's also the cancer stem cells which can lay dormant for years without dividing. This is the reason for most cancer returning. There's a promising new tech that hopefully pans out that activates these cells so standard chemo can attack them. Regarding clinical trials, they are very selective. You have to for a very specific criteria and your cancer needs to be measurable by a CT scanner typically to prove efficacy. Add to that the typical cancer patient is either a child or an older person and you're bound to have poorer results.