My wife has pancreatic cancer (you are never really cured.)
At diagnosis eating is difficult. This is a preliminary study on rodents. It is said among cancer researchers that they have been able to cure cancer among mice for decades. Curing it among people is the hard part.
I am not saying the research is useless, but the treatment for pancreatic cancer is, if you are lucky, surgery that completely reroutes your digestive system followed by six months of chemo that will likely kill you. And then the 5 year SEER is still about 10%.
My wife was in peak fitness when diagnosed with PC. Fitness may have nominal effect in some cases, but this form of cancer still takes out over 95% within 5 yrs.
You’d better be really fit just to recover from Whipple surgery.