Aurelio ZERIAL is doctor in Biology (University of Trieste, Italy) and PhD in Biochemistry (1978 -Wesleyan University, USA). His research experience at the Battelle Institute (Switzerland) and Rhône-Poulenc (France) included immunology, anticancer- and antiviral- chemotherapy, with development of four drug candidates up to clinical trials. He is author of a hundred publications and abstracts. In 1991 he joined Rhône Poulenc Rorer and Chugai Rhône Poulenc as Regulatory Affairs Associate, then as Director at Aventis International, managing registration dossiers of chemical drugs and biomedicines. During the last twenty years he is a private consultant in drug development and regulatory affairs, first as director of BioProgetti then on his own. His main contributions to companies are in biomedicines, particularly in the areas of CMC (Chemistry, Manufacturing and Controls) and preclinical studies. Aurelio is involved also in teaching activity, first as Associate Director at ISFBM (Gustave Roussy, France) then with other institutions to perform professional training on pharmaceutical subjects.