The National Institutes of Health (NIH) is offering a funding opportunity titled "Innovation for HIV Vaccine Discovery (R01 Clinical Trial Not Allowed)" aimed at supporting high-risk, high-impact research for innovative vaccine strategies against HIV. This initiative encourages diverse participation from new and established researchers, focusing on revolutionary approaches that may prevent HIV infection, with a unique Go/No-Go funding framework that requires measurable goals to be met within the first two years for continued support. The program has a principal funding budget of $350,000 per year, with applications accepted until August 1, 2025, and additional funding may be available for projects involving nonhuman primate studies. For more information, applicants can contact NIH Grants Information at grantsinfo@nih.gov or visit the opportunity's webpage at https://grants.nih.gov/grants/guide/pa-files/PAR-23-169.html.