A new blood test may help identify the early stages of Alzheimer's with 94% accuracy -- before symptoms even appear -- a new study says.
The findings advance efforts to have a blood test to identify people who will develop Alzheimer's before they have symptoms, and such a test could be available in doctors' offices within a few years, the researchers said.
The researchers also noted that one difficulty in clinical trials of Alzheimer's drugs is identifying patients who have Alzheimer's brain changes but no symptoms. The blood test could provide an efficient way to find people with early signs of the disease to participate in drug clinical trials. "But with a blood test, we could potentially screen thousands of people a month," he said in a Washington University news release."That means we can more efficiently enroll participants in clinical trials, which will help us find treatments faster, and could have an enormous impact on the cost of the disease as well as the human suffering that goes with it."Maria Carrillo, chief science officer the Alzheimer's Association, said such a test would be welcomed.
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