While I wish this research well, very well in fact...
In 8 of 16 patients studied, the vaccines activated T cells that recognize the patient’s own pancreatic cancers. These patients also showed delayed recurrence of their pancreatic cancers, suggesting the T cells activated by the vaccines may be having the desired effect to keep pancreatic cancers in check.
This is a far cry from "stops pancreatic cancer". An article about research science by the research scientist leading it is a call for funding. It is very probably a good thing to fund. But misleading headlines set society up for disappointment when the science doesn't deliver on the headline claims. This weakens public trust in science. A huge part of this problem is the need for science to beg for grants and funding in the first place.