Roche Holding AG secured CE marking for the Elecsys plasma phosphorylated-tau 217 blood test designed to rule in and rule out amyloid pathology, a hallmark of Alzheimer's disease. Developed with Eli Lilly and Co., the test brings to the market another much-needed solution to help clinicians diagnose Alzheimer’s patients following the FDA approval of Fujirebio Diagnostics Inc.’s blood test last year.