The National Institutes of Health (NIH) has announced a funding opportunity aimed at supporting Phase I clinical trials for therapeutic and diagnostic interventions related to heart, lung, blood, and sleep (HLBS) disorders. This initiative seeks to accelerate the development of clinical interventions by funding investigator-initiated studies that demonstrate potential advancements in HLBS health, with a focus on ensuring that applicants are prepared to initiate trials promptly after receiving funding. The funding is capped at $1.5 million per year for a project period of up to three years, contingent on satisfactory progress and milestone completion, with applications opening on January 3, 2025, and the first due date set for February 3, 2025. Interested applicants can reach out to NIH Grants Information at grantsinfo@nih.gov for further inquiries and are encouraged to review the full announcement available at https://grants.nih.gov/grants/guide/pa-files/PAR-25-025.html.