A daily pill can double survival time in patients with the world’s deadliest cancer, according to the results of a clinical trial that experts are saying is a “gamechanger” and one of the biggest breakthroughs in decades.Currently, there are few treatments for pancreatic cancer, and most do little or nothing to help. For decades, scientists have worked relentlessly trying to find clever solutions for a form of cancer that is often found late. More than half of patients are only diagnosed after i...