New research demonstrates that blood tests measuring p-tau217 protein can identify dementia risk up to 25 years before symptoms and significantly improve diagnostic accuracy in clinical practice.
Researchers at Washington University School of Medicine developed a blood test-based method to predict when Alzheimer's symptoms will begin, with accuracy within three to four years, using plasma p-tau217 protein levels.
A single blood test measuring p-tau217 protein can predict when cognitively unimpaired individuals will develop Alzheimer's symptoms, with a margin of error of 3-4 years, potentially accelerating clinical trials.