The National Institutes of Health (NIH) is offering a funding opportunity titled "Ending the Epidemic: New Models of Integrated HIV/AIDS, Addiction, and Primary Care Services (R34 Clinical Trial Optional)." This initiative aims to support the development and testing of integrated care models that enhance the coordination of services related to HIV/AIDS, Hepatitis, and substance use disorders, with a focus on improving health outcomes in the United States. The funding opportunity is part of the broader "Ending the HIV Epidemic" initiative and seeks to address gaps in comprehensive health service delivery, particularly in areas with a high burden of HIV. Eligible applicants can receive a maximum award of $450,000 over three years, with applications due by March 19, 2025. For further inquiries, interested parties can contact NIH Grants Information at grantsinfo@nih.gov or visit the additional information link at https://grants.nih.gov/grants/guide/rfa-files/RFA-DA-25-059.html.