I am on 9805/6236 but at lower dose - 900/100. Only side effect is mouth sores on and off. Started in August and by October ca19-9 was down to 38 from 16000. However got sepsis and ca19-9 went up to 830. This is third episode of sepsis since whipple surgery and they’re trying to figure out source. Anyone else had this problem? Ca19-9 Came down a little last time and scan shows no progression. Doctor doesn’t seem worried about the ca19/9 level.