The National Institutes of Health (NIH) is offering a grant opportunity titled "Ancillary Studies to Ongoing Clinical Projects (R01 Clinical Trial Not Allowed)" aimed at supporting research that leverages resources from ongoing clinical studies. This initiative encourages applications for ancillary studies that align with the mission of the National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), utilizing well-characterized patient cohorts, infrastructure, data, and biological samples from parent studies. With an estimated total program funding of $2 million and an expected four awards, interested small businesses are encouraged to collaborate and develop responsive projects. Key deadlines include an estimated synopsis post date of February 4, 2026, a close date of April 6, 2026, and an anticipated award date of December 4, 2026. For further inquiries, applicants can contact Heiyoung Park, Ph.D., at Heiyoung.Park@nih.gov or by phone at 301-827-5992.