If you know the experimental drug\treatment you want to try check overseas. Don't wait for local (I'm assuming) docs to give you the info. Contact centers with a known rep. Good luck!
Right now the strategy is to kick the can down the road until there is a solution: traditional chemo, then the blunt immunotherapy of ipilimumab + nivolumab/pembrolizumab.
Also (with oncologist's knowledge) adding in very speculative but reasonably safe extras like a COX-2 inhibitor, anti-histamine, and melatonin. (Certainly not the well-targeted approach I talk about in my other comment, unfortunately!)