A pilot study funded by the U.S. Food and Drug Administration (FDA) that could potentially lead to changes to blood donor eligibility for men who have sex with men is underway and seeking participants in 8 U.S. cities. The ADVANCE study , which stands for Assessing Donor Variability And New Concepts in Eligibility, is focused on evaluating alternatives to the FDA's blood donor time-based deferral policy for men who have sex with men (MSM). ... The ADVANCE study is a first step in providing data that will help the FDA determine if a blood donor history questionnaire (DHQ) based on...