The National Institutes of Health (NIH) is offering a funding opportunity aimed at advancing drug repositioning and combination therapy development for Alzheimer's Disease (AD) and related dementias (ADRD). This initiative invites applications that utilize mouse models to conduct rigorous preclinical testing of FDA-approved drugs or investigational compounds, with the goal of establishing proof of concept for effective treatment strategies. Given the historical challenges in developing successful AD therapies, this program emphasizes a systematic approach and encourages collaboration between academia and industry to enhance research rigor and reproducibility. Applicants may receive up to $1 million annually, with a total funding pool of $6 million available for 4-5 awards. The application deadline is May 7, 2028, and interested parties can reach out to NIH Grants Information at grantsinfo@nih.gov for further inquiries.