Scientists are beginning a major study to see if an experimental drug can protect healthy seniors whose brains harbor silent signs that they are at risk of Alzheimer’s disease.
It is one of the most ambitious attempts yet to thwart Alzheimer’s.
Researchers expect to screen thousands of volunteers ages 65 to 85, hunting those whose brain scans show they have a sticky build-up believed to play a key role in development of Alzheimer’s.
That does not guarantee someone will get sick. But the study will test if early use of a drug designed to target the gunk makes a difference for those who do.
Whether the drug works or not, researchers say the unique study should give new insight into Alzheimer’s risks and how people cope with the knowledge.