Abstract
Nearly a decade after becoming formally available in the U.S., HIV pre-exposure prophylaxis (PrEP) remains underutilized by populations at risk for HIV acquisition. The next generation of PrEP research is pivoting toward implementation research in order to identify the most impactful avenues for scaling up PrEP uptake. Rapid identification of patients who may be at risk for HIV in primary care settings and the ability to provide brief consultation and prescription or referral for PrEP could help to increase PrEP uptake. The current study aimed to develop and pilot-test a PrEP screening instrument that could be integrated into the workflow of busy primary care clinics to help facilitate PrEP uptake among at-risk men. During the study, PrEP screening occurred for 12 months in two primary care clinics nested within a large integrated healthcare delivery system in Southern California. An interrupted time series analysis found a significant increase in PrEP referrals overall during the screening intervention period as compared to the preceding 12 months. Findings suggest that brief HIV risk screening in primary care is acceptable, feasible, and shows preliminary effects in increasing PrEP referral rates for Black and Hispanic/Latinx men.