Clinical Utility of Early vs. Late Blood Biomarker Testing for Alzheimer's Disease

The goal of this study is to evaluate whether use of the PrecivityAD2 blood biomarker assay with early result disclosure along with discretionary Precivity-ApoE proteotype testing will shorten the time to Alzheimer's Disease or non-Alzheimer's diagnosis as compared to delayed result disclosure. Participants will be randomized into the early PrecivityAD2 blood biomarker test \& disclosure group (Cohort A) or to the later PrecivityAD2 blood biomarker test \& disclosure group (Cohort B) where blood samples will be collected and tested using the PrecivityAD2 test at Visit 1 (day 0) and Visit 2 (day 90). Participants will attend study visits for one year after their enrollment. An optional sub-study will be offered to collect information through questionnaires at each visit regarding participant's and their care-giver's experiences through the AD diagnostic journey.