Aussie, based on my grandparents, my parents and myself all are headed for the same fate provided something else doesn't get us first. Watching my grandparents getting eat up with it has led me to spend alot of time researching potential cures. I have to say some treatments are looking very promising.
Australia has there own set of drug companies enrolling people in trials all the time trying to find a cure. Look through the list and see if any are feasible for your situation.
http://www.fightdementia.org.au/info...al-trials.aspx