I just heard from the research nurse at my MS clinic. They will be doing the antibody assay testing. She is waiting on approvals and as soon as she gets that they will call patients in to give blood. My plan was to drop Tysabri after the next infusion in July (#22), wait a few months until it clears from my system, and then go on Fingolimod (now called Gilenia) which I'm hoping is out by Fall. However, if I test negative on the assay I think I would probably stay on Tysabri. Thank god there are new medications on the horizon, though!!