A review of implementation strategies to enhance PrEP delivery for people experiencing housing insecurity: Advancing a multifaceted high-touch, low-barrier approach

PURPOSE OF REVIEW: This review summarizes key implementation strategies to advance oral and long-acting PrEP delivery for unstably housed people in the United States. RECENT FINDINGS: People experiencing homelessness and housing instability face barriers to PrEP uptake and adherence including lack of safe medication storage, competing basic needs, insurances issues, and/or mental health or substance use disorders. Recent advancements in HIV treatment and prevention provide evidence on high-touch, low-barrier implementation approaches to address these challenges. We compiled these approaches into a multi-component implementation strategy, "SHELTER", which includes: low-barrier primary care, case management, incentives, outreach, care coordination, multidisciplinary provider collaboration, data tracking, and robust provider-patient relationships. The US has fallen short of our Ending the Epidemic targets, in part due to challenges in PrEP delivery for people experiencing housing instability. SHELTER provides a comprehensive approach for considering critical components of HIV prevention for this population that can be used in future oral and long-acting PrEP programs.