==== Front Innov Aging Innov Aging innovateage Innovation in Aging 2399-5300 Oxford University Press US 10.1093/geroni/igaa057.3251 igaa057.3251 Abstracts Session 10120 (Late Breaking Poster) Alzheimer’s Disease and Related Dementias AcademicSubjects/SOC02600 Research Participant Interest in Alzheimer’s Disease Biomarker Disclosure Erickson Claire 1 Chin Nathaniel 1 Gleason Carey 2 Johnson Sterling 1 Clark Lindsay 1 1 University of Wisconsin-Madison, Madison, Wisconsin, United States 2 University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States 2020 16 12 2020 16 12 2020 4 Suppl 1 Program Abstracts from The GSA 2020 Annual Scientific Meeting “Turning 75: Why Age Matters”880 880 © The Author(s) 2020. Published by Oxford University Press on behalf of The Gerontological Society of America.2020This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.Abstract Researchers can characterize the pathophysiological progression of Alzheimer’s disease (AD) even in the absence of symptoms. As we better understand the role of biomarker accumulation in the clinical manifestation of AD, disclosing personal biomarker information will become increasingly relevant. Yet, interest and preferences for AD biomarker disclosure are not well understood. We developed a 30-minute phone survey to gather information from Black and white participants on likelihood to enroll in biomarker disclosure studies, reasons for enrolling, and potential outcomes following a hypothetical positive result. Data were collected from cognitively healthy participants (n=334, mean age=64.8±7.7, 45% Black) enrolled in the Wisconsin Alzheimer’s Disease Research Center or Wisconsin Registry for Alzheimer’s Prevention. 49.7% of participants were very or extremely likely to enroll in an AD biomarker disclosure study. This result varied by biomarker method, with about half the sample very or extremely likely to enroll in PET scan disclosure (45.5%), fewer likely to enroll in cerebrospinal fluid disclosure (32.2%), and a majority likely to enroll in blood-based biomarker disclosure (86.2%). The most important reasons for learning biomarker results included informing lifestyle changes to help prevent dementia (82.9% responded very or extremely important) and knowing more about personal AD risk (69.1% responded very or extremely important). These results suggest that as biomarker collection method burden decreases, willingness to participate in a biomarker disclosure study increases. Further, personal dementia prevention and risk are a strong motivator for learning biomarker results. Moving forward, these results may inform AD biomarker protocol development.