Just wondering if maybe the reason that they're no longer mentioning efficacy and only saftety....could it be that at this late stage, that efficacy is no longer a concern, that only safety is needed to be checked?

Its just a thought.....Abucanumab's trials were halted for efficacy, but our last 2 DSMB reccomendations don't mention it after the first 7 did.  Is it possible that efficacy has already been sufficiently established?