Hopes Rise Again for a Drug to Slow Alzheimer's Disease

U.S. News 

About 50 million people worldwide have dementia, and Alzheimer's is the most common type. There is no cure-- current medicines just ease symptoms. Some previous efforts to develop a drug to slow the disease may have been tried too late, after much damage had already occurred. The new drug aimed sooner, in people with early Alzheimer's, and the drug works at an earlier step in formation of the sticky brain plaques.