pbt and alzheimers

Current #1 Alzheimers drug earns $2.3 Billion per year on 30% of the US market
http://www.reuters.com/article/health-SP/idUST28743820070717
Prana was founded by the scientists who identified that plaques, caused by a combination of copper and zinc, forming on the brain cause alzheimers. They are world leaders in their field.
They have been working on ridding the brain of these palques, and have already done so in mice, restoring memory.
The first drug they came up with contained impurities which caused complications and the clinical trial was cancelled.
The next drug they came up with was pure and passed the phase 1 safety trial OK on healthy patients.
Now it is in a double blind phase 2 trial on Alzheimer patients which will be complete in December, and if the good doctors running Prana are right, this little co could possibly be worth many times its current price IMHO.
The best current drug, Aricept, earns $2.3B yet only supplies 30% of the US market. A drug that could stop Alzheimers and even reverse it would see a much larger market share.