As Prof McFarlane recently explained, the decisions have been made by some patients to discontinue Aricept. This was not a decision of Anavex management or the Caufield scientists running the study, again as explained by Prof. McFarlane. There was no "switching." All were on some dose of A2-73 already, some with Aricept some without. Some have decided to stop Aricept and as you point out it would have been discussed with the physician that RXed Aricept to start with.
Maybe this is why they do not call it "Mono Group" because it was not predefined that way and all those that stopped Aricept did of their own accord and at different times. Further, since it is an individual decision the scientists running the study and AVXL (understand AVXL does not run the study rather it is run by McFarlane, his superiors, and staff) can not stop any participants from restarting to take Aricept. But some have stopped of their own accord, as Prof. McFarlane stated on the record.
There has been a lot of discussion on this subject. Prof. McFarlane's testimony about this is the most important, go back and review what he said regarding this matter of discontinuing Aricept and by whom it was decided.
Some would with any confusion to try to torpedo this "Ship of Hope." Yet She sails on!
Think clearly, examine all the evidence, then make your own conclusions.
Go A2-73, Anavex and the Caulfield researchers!