The HISS has acted as a Clinical Research Organization for clinical trials. The HISS is ELOT ΕΝ ISO 9001:2015 (registration number GR-QA-C-1865/17) certified for the conduct of randomized clinical trials in Greece. The certification is coming by EBETAM-MIRTEC S.A. that is an IQNet Partner. The certification comprises the ability for management, running, monitoring and reporting of a clinical trial through interaction with the Greek regulatory authority. The expertise of HISS as Clinical research Organization is on the conduct of trials on sepsis and severe infections, COVID-19 and systemic inflammatory disorders.