Pamala,
My neuro told me awhile back that if you develop the antibodies it isn't working and they need to stop it. He had one of the largest (or the largest?) trial sites in the US so I think he knows what he's talking about.
Unless something has changed from when he told me that, I don't know if I'd want to be on it with the antibodies?

Maybe you could talk to the Biogen people and get their opinion?