The National Institutes of Health (NIH) is offering a funding opportunity titled "Pilot Health Services and Economic Research on the Treatment of Drug, Alcohol, and Tobacco Use Disorders" (R34 Clinical Trial Optional). This initiative encourages pilot studies aimed at preparing for larger-scale effectiveness trials that focus on optimizing access, quality, and affordability of substance use disorder treatments and related services, with an emphasis on diverse perspectives through a Plan for Enhancing Diverse Perspectives (PEDP). Applicants may request up to $450,000 in direct costs for a three-year grant, with application due dates beginning January 16, 2025. For further inquiries, interested parties can contact NIH Grants Information at grantsinfo@nih.gov, and additional details can be found at the provided link: https://grants.nih.gov/grants/guide/pa-files/PAR-25-100.html.