I defer to those of greater background, but I thought someone did respond earlier that this process could have already begun and that Anavex and Rett had like 100 days to file update.
AVXL has submitted protocols for all the 3 trials already and will have a single day meeting to discuss all of them together (as all diseases are in CNS and same fda team might look at them)
If that happens, we could see all protocol approval by fda nearly at same time and we could see PR for same around same time