The Colon Club

And if you did, was it helpful?

I'm thinking it might give me some data to help decide whether I can safely go off Keytruda. I just can't stand this ongoing pain. It is crushing me.

No personal experience,
but this search for "liquid biopsy"
https://coloncancersupport.colonclub.com/search.php?keywords=%22liquid+biopsy%22&terms=all&author=&sc=1&sf=all&sr=posts&sk=t&sd=d&st=0&ch=300&t=0&submit=Search

will flag some members who have discussed this in more detail

Best wishes
CRguy