Thank you both for the quick response. In fact I don't have any illusions about this condition and have no reason to think that my neurologist missed anything. He's a bright guy.

The rheumotologist I've seen for my Raynaud's suggested that I look around for specialists in the event that there might be a clinical trial I could get myself into. So I figured I'd put the question to this group.

It's true, we're used to hearing answers from our doctors and it can be very frustrating when there are none. Oh well.