I've known a few people with assburgers. One had a fanatical love of the pope and Star trek, and had crumbs all over himself at all times, while he leered at women. He drank all the time. Another just likes to play board games, but interestingly enough also loves the pope.
I don't think there's a cure, other than the GATTACA type of "cure". My nephew has Downs, and there's no cure for that and never will be. Like Downs, it's integral to who they are.