Hi . I know you are familiar with 's story and this sounds a lot like his experience - treat, monitor, and see what happens. I can tell you I'm familiar with some great success stories with immunotherapy, including my wife's uncle who had small cell lung cancer metastasized to his liver and is now in remission due to immunotherapy. Of course, this is anecdotal evidence, but hope you see great results and the RA stays controlled. Please feel free, if you like, to keep us posted on how things are going. Best, Richard (RheumatoidArthritis.net Team)