@annsant
I too have KRAS G12D. Recently a visited a noted research center to find out about the recent work in this area. Also, I was on a zoom call with Dr Pant at MD Anderson today regarding vaccine trials for KRAS G12D
First let me say I just finished a round of gem/abraxane and it is making a difference for me in my tumor marker and also a “suspicious” area.
The vaccine is about to open phase 2 randomized trials. Not sure if your husband will qualify but worth a call!
Also I was informed that great progress is happening with G12D checkpoint inhibitors. So good that they may be available to the public in 2024!
If he has done 5FU/fulfurinox I think this cycle of drugs will be easier. Help him keep his attitude positive and keep up the good fight. We can turn this into a chronic disease soon!

PS look for KRAS Kickers on social media