My wife was part of a stage 3 melanoma study for the drug Ipilimumab (brand name Yervoy), an immunotherapy drug that inhibits the signal mechanism used by the immune system to turn off an attack. So any metastatic cells floating around her body would not be able to masquerade as normal cells by flying the right protein flag. Unfortunately, halfway through the trial she had a major reaction that caused brain swelling, requiring her to be hospitalized twice. Fortunately, she survived the side effects and the oncologist believes she had enough of the juice to get most of the benefit. Without the drug, we were looking at 50% survival rate for 5 years. The study is still in progress, so no idea how Ipilimumab will improve the odds.
There is research out there claiming green tea, spices like tumeric, and just eating better can have dramatic results. I would like to see some serious research by respected oncologists into the efficacy of simple life changes like that, instead of study after study pushing big pharma's insanely expensive drugs (thankfully covered by the trial in our case) that cause side effects potentially more dangerous than the disease they are intended to treat.
I don't know if reprogramming T-Cells like in TFA is more or less dangerous than conventional immunotherapy. Cancer makes people desperate enough to take some pretty big treatment risks. I certainly appreciate the fact that oncologists are aggressive in their mission to save lives, but I wish we had more non-fringe research into potentially good treatments that were also cheap and safe.