The National Institutes of Health, through the National Cancer Institute (NCI), is offering a funding opportunity titled "Investigator-Initiated Early Phase Clinical Trials for Cancer Treatment and Diagnosis" under the R01 Research Project Grant program. This initiative aims to support research projects that implement early phase clinical trials (Phases 0, I, and II) focused on cancer-targeted diagnostic and therapeutic interventions, aligning with the NCI's mission to advance cancer research. Eligible applicants include a diverse range of organizations such as colleges, nonprofits, and governmental entities, with a maximum project budget of $499,999 in direct costs per year and an award period not exceeding five years. Interested parties should note that applications are due by January 7, 2027, and can seek further information by contacting NIH Grants Information at grantsinfo@nih.gov or visiting the opportunity's webpage at https://grants.nih.gov/grants/guide/pa-files/PAR-25-081.html.