Dittos! I have a spreadsheet where I have recorded my CA19-9 since diagnosis. (11/2021)
For me, it is definitely indicative. My oncologist agrees. I would love to know if it has to do with my mutations or some other chemical make up. But I can now see that a tumor soon began to form when the abraxane was removed from my “recipe” . On a clinical trial now and yes, I am also obsessed with knowing my CA19-9. I’ll be calling in a few hours!!