Which is probably why cancer survival when it can be surgically removed is fairly good, but incredibly poor in general when it can't and must be treated by medicine.
I don't know if Burzynski has something better, but I have seen the documentary and researched the background. It is clearly not a case of the FDA trying to stop bad medicine. He has been in trouble mostly due to protocol and a clandestine attempt to take his patents. He has been in court many times, and won every case, and never was he in court due to damage to clients, it was always about some break of protocol, such as how medicine is delivered across state lines etc.
Anyway, in general you aren't allowed to even try Burzynski's medicine until all FDA approved medicines have already been tried. Only then can you apply to be part of the FDA trial for his medicine.
I am all for evidence-based medicine... this link is arguing that terminally-ill patients should not have the right to try various experimental treatments, which I find appalling..."those who sacrifice liberty for security deserve neither."