He is not a quack. I’m actually quite sure Burzynski did not tell her that her son would be cured by his method. However, the FDA has been trying to shut him down for decades and he has been taken to court many times. Each time he has been able to show that the FDA was not honest in their prosecution. The FDA’s heavy handling of his clinic in Texas has also been the focus of Congressional hearings.
This is merely one more attempt by the FDA to shut him down. I hope he beats it again. He has had a lot of success with several types of cancers. (He does not claim to have “the cure” for all cancers.)