OPIS is an international CRO (Contract Research Organization), with 23 years of experience in conducting more than 1400 Phase I-IV clinical trials, including non-interventional, medical devices and nutraceutical studies on an international level. With 10 offices across Europe and more locations growing overseas worldwide, OPIS offers a full range of integrated clinical research services as scientific advice, medical writing, trial start-up, monitoring, study management, data management, statistics, pharmacovigilance as well as quality assurance and training.