I went through the same thing when I was first diagnosed. I was terribly disappointed in having to decide between surgery/radiosurgery/waiting. There are some labs doing research on drugs for these kinds of tumors. I believe Ohio State is working on something. There was another doctor who tried chemo drugs with some results. I have combed through a bunch of articles on pubmed to see if there was anything better coming on the horizon, sadly there doesn't seem to be anything, hopefully I'm wrong. There is research but nothing truly promising in the kind of time frame that matters to us.
Unfortunately our condition is rather rare, it does not get nearly the attention that cancer gets (which it should) or the money. Although it seems possible that some of the knowledge from cancer research can crossover to AN's.
Even if we were to wake up tommorow and there was a medical cure on the news it would take years to get through the FDA and to your doctor's prescription pad.
I hate being a Debbie Downer, but I don't know if anything medically will happen soon and it may be better focusing your effort into figuring out if you want to wait, radio, or cut. Again I hope I am wrong and I would be ecstatic to have someone prove me wrong.