The National Institutes of Health (NIH) is offering a funding opportunity titled "Research to Address Systemic and Structural Barriers and Facilitators to Improve the HIV Pre-Exposure Prophylaxis (PrEP) Care Continuum for People Who Use Substances." This initiative aims to support research that examines and addresses the systemic and structural factors affecting the awareness, uptake, and adherence to PrEP among individuals who use substances, with a focus on marginalized populations. The funding will provide R34 Planning Grants, allowing for the planning and pilot implementation of innovative strategies to improve PrEP access, with a total estimated program funding of $5 million available for up to eight awards, each capped at $450,000 over a maximum of three years. Interested applicants must submit their proposals by March 12, 2025, and can reach out to NIH Grants Information at grantsinfo@nih.gov for further inquiries.