A PET scan of the brain of a person with Alzheimer's disease.
U.S. National Institute on Aging/Wikimedia Commons
August 24, 2012 It's the latest setback in a field marked by failure. Earlier this month, Pfizer and Johnson & Johnson said they were dropping development of a similar experimental drug after big clinical studies showed it wasn't working.
May 12, 2008 UPDATE on May 20, 2008: The Infinite Mind has added an Underwriting page after the recent criticism and added fuller disclosure about a
NPR thanks our sponsors
Become an NPR sponsor