For those following my journey, I had a face-to-face meeting with my MO today and learnt a few things I didn't know. Firstly, the genetic test of the liver tumour the NHS do only tests for BRCA - no other genes. The reason appears to be that the only treatment they would offer is a Parp inhibitor so there's no point testing for anything else. I will go ahead with the liquid biopsy through Guardant360 but he pointed out that if it shows up anything else such as MSH-hi suggesting Keytruda might work, this is not licenced in the UK so I couldn't even get it if I paid privately. I would have to go abroad.
I got a second opinion via email from Professor DeBono at Royal Marsden and he basically said that given my situation, either cabazitaxel or carboplatin (or both) is the next (and only remaining) treatment available. My MO said that my blood works suggest I couldn't take the combo so he is referring me for carboplatin. This may well knock back the liver mets but they are likely to return fairly quickly. Does anyone else have experience of having carbo with liver mets? Did it work and for how long was it effective?