My mom's doctor said there is a new medicine that is being fast-tracked by FDA. He said during trials that people on it actually got memory back and the improvement was so good they felt it wasn't fair to those on the placebo. So it's being fast tracked and should be available by the end of this year.
I read that there are actually at least two that are being fast tracked. One is from Eli Lilly and there is another from another company. Sounds exciting!