Can anyone tell me if they’ve experienced rises in their CA-19 after Fulfirinox chemo? A family member diagnosed 1.5 months ago with stage IV with CA-19 of 5,200. Started Fulfirinox 1.5 weeks after diagnosis – after cycle ONE CA-19 of 6,500, after cycle TWO CA-19 of 9,584. Oncologist said he doesn’t always rely on these numbers. Too soon to tell anything and whether or not to switch treatment plans until after a scan. I did read that these numbers can sometimes increase before they start to decrease??? Any input is appreciated.