how many times must i say it..they have done so many ALzheimers studies with so many non-effective drugs..that they have a placebo Stat FOR EVERYTHING! You do not need an AD Placebo you can use the STATS and MAKE ONE UP! WHY are you going to FORCE people INTO Dimentia when YOU HAVE A SAFE TREATMENT? What the HECK is wrong with the medical profession? If Anavex is SAFE and well Tolerated..THEN GIVE IT UP! You want your Mom getting the Placebo? Cut it OUT! This isn't a new disease..we KNOW want it does..The PLACEBO EFFECT IS GONE by 12 WEEKS..GONE..