The Food and Drug Administration (FDA) is offering a funding opportunity titled "Reissue of RFA-FD-22-001 - Efficient and Innovative Natural History Studies Addressing Unmet Needs in Rare Diseases (R01 Clinical Trials Optional)." This initiative aims to support innovative natural history studies that generate high-quality data to advance medical product development for rare diseases with significant unmet needs. The funding is crucial for addressing knowledge gaps and facilitating the development of treatments in this area. Eligible applicants include a wide range of organizations such as higher education institutions, nonprofits, and government entities, with grant amounts reaching up to $600,000. The application deadline is February 8, 2028, and interested parties can contact Kimberly Pendleton at Kimberly.Pendleton@fda.hhs.gov for further information.