[Phanuthier]

The answer could be very long winded. Tons of ideas and different treatments out there too.

One reason its expensive in testing is there seems to be some order of test rats (metaphor, not nessasarly rats) to try and treat cancer. Rats being at the bottom of the food chain, then rabbits/snakes/etc, monkeys being closer to the top, and if proven to work with animals who might resemble some % of gene match or whatever, they might be able to experiment on humans.

One idea I know about cure (I use that term loosly) is nanomedicines to target individual cells (with markers) rather then expose a large area for treatment. Minimize the amount of radiation, reduce exposure to non-cancer cells, higher concentration for the cancerous cells and so on. Pretty cool stuff, almost went off to do research in this field before I made a last second switch and decided I would rather make cell phones and cable modems.