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Doubts abound about a new Alzheimer’s blood test
  + stars: | 2023-10-18 | by ( Judith Graham | ) edition.cnn.com   time to read: +10 min
The Quest Diagnostics blood test, AD-Detect, measures elevated levels of amyloid-beta proteins, a signature characteristic of Alzheimer’s. But Alzheimer’s researchers and clinicians aren’t convinced the Quest test is backed by sound scientific research. Though blood tests for Alzheimer’s are likely to become common in the years ahead, the Alzheimer’s Association said it’s premature to offer a test of this kind directly to consumers. Because the science behind blood tests for Alzheimer’s is still developing and because “patients may not really understand the uncertainty of test results,” Edelmayer said, the Alzheimer’s Association “does not endorse the use of the AD-Detect test by consumers.”Quest’s blood test is one of several developments altering the landscape of Alzheimer’s care in the United States. The bottom line: Before taking a test, “older adults need to ask themselves, ‘Why do I want to know this?
Persons: aren’t, Alzheimer’s, Michael Racke, , there’s, Suzanne Schindler, St . Louis, That’s, ” Schindler, Racke, Meera Sheffrin, , Rebecca Edelmayer, ” Edelmayer, Eric Widera, Dr, Sanjay Gupta, Emily Largent, ’ ”, Munro Cullum Organizations: Health, Diagnostics, Alzheimer’s Association, Quest, University of Michigan, International Conference, Washington University School of Medicine, Senior, Stanford Healthcare, The University of Michigan, FDA, National Institute, Aging, University of California, Get CNN, CNN Health, University, Pennsylvania’s Perelman, of Medicine, HIPAA, University of Texas Southwestern Medical Center, Kaiser Health, KFF Locations: U.S, San Diego, St ., United States, San Francisco
CHICAGO, July 31 (Reuters) - Quest Diagnostics (DGX.N) on Monday launched the first direct-to-consumer blood test to detect abnormal levels of beta amyloid, a key Alzheimer's protein which can appear years before dementia symptoms arise. The $399 test, called AD-Detect, uses the same technology as a blood test the company launched for use by doctors in early 2022. Users must first pay for the test on Quest's website. Quest will then arrange for an appointment with a telemedicine doctor to order it on their behalf. Quest's lab-developed test, created and performed in a single laboratory, has not undergone any FDA review.
Persons: Michael Racke, Biogen, Eli Lilly, Racke, Julie Steenhuysen, Richard Chang Organizations: Quest Diagnostics, Monday, U.S . Food, Drug Administration, Thomson Locations: Eisai, Alzheimer's
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