By Chloe Elmer
Using a PET scan, researchers can detect amyloid buildup in the brain, but a Penn Memory Center study published in JAMA Neurology found that research participants can be frustrated with how their result is described, as either “elevated” or “not elevated” amyloid.
They want a number that explains how much amyloid, but such a number isn’t available. Study authors call for those describing these biomarkers to research participants to anticipate this need and explain why, at present, a personalized number isn’t available.
The study, known as the Study of Knowledge and Reactions to Amyloid Testing (SOKRATES), interviewed 50 participants in the A4 Study (Anti-Amyloid Treatment in Asymptomatic Alzheimer’s Study). The A4 Study is a clinical trial testing whether a drug (solanezumab) can slow decline seen in cognitively unimpaired older adults with elevated amyloid. A buildup of amyloid is common in the brains of older adults with Alzheimer’s disease dementia, but it can also be present in adults experiencing no loss in cognition. Memory problems might not surface for years, or even not at all.