Vandetanib, the drug approved today, failed in non-small cell lung cancer and in bladder cancer before it proved effective in medullarythyroidcancer.
FORBES: AstraZeneca's Victory Highlights Difficulty Of Cancer Drug Development
2.
Medullarythyroidcancer involves specific types of cells that are found in the thyroid gland and can occur spontaneously, or be part of a genetic syndrome.
FORBES: AstraZeneca's Victory Highlights Difficulty Of Cancer Drug Development
3.
Nothing is likely to answer the question definitely short of approving the drug, letting millions use it, and waiting to see whether more people get medullarythyroidcancer.