The National Institutes of Health (NIH) is inviting applications for the NIAID SBIR Phase II Clinical Trial Implementation Cooperative Agreement (U44), aimed at supporting small business concerns (SBCs) in conducting investigator-initiated clinical trials that align with the NIAID research mission. This funding opportunity encourages high-impact, hypothesis-driven studies, particularly those involving high-risk clinical trials with unique features such as non-routine interventions or the use of unlicensed products. Eligible U.S.-based SBCs can apply for a maximum award of $1 million per year for up to three years, with applications due by January 14, 2027. Interested applicants are encouraged to consult with NIAID staff prior to submission and can find more information at grants.nih.gov, or contact NIH Grants Information at grantsinfo@nih.gov.