The Clinical Trials Unit (CTU) is an independent facility in the ZMF and specialises in performing clinical phase 1 studies. It is located on the first floor of the Center for Medical Research and has 12 beds for inpatient stays and some ambulant rooms for a wide range of studies. Study-specific examinations (medication testing, periodic blood draws to measure drug levels, testing new blood measurement systems, heart monitoring, etc.) are performed at the highest international standards. Subjects can be monitored in comfortable surroundings for up to 14 days.