New cancer therapy comes of age, but cost a 'toxic' side effect

The article does not explain why the drugs cost so much. That's what I think most people would like to know.

The article does not explain why the drugs cost so much. That's what I think most people would like to know.

Probably the high costs of development, from equipment to salaries to investors to drugs that didn't work in the trail & error pursuit to find that drug that works.