The Clinical Trials Unit (CTU) is a central research unit operated under the Executive Vice President for Health Affairs (EVPHA).  The unit provides services to investigators, sponsors and research staff conducting clinical research trials involving healthy subjects or patients. CTU operates in four locations on the Health Sciences Center: The Outpatient Research Clinic - HCOC building, the Administrative Office - MedCenter One Building, the Coordinator Pool - MDA building, and the Coordinator Pool - Heart and Lung Building.