William Stern, PhD, is a consultant at Peptide Drug Development. He earned his BA in Chemistry from New York University and a PhD in Biochemistry from the University of Michigan. Subsequently he joined the Public Health Research Institute of the City of New York, where he isolated and identified the neutralising antigen for poxviruses. In 1986 he joined Unigene Laboratories and then Enteris Biopharma, and advanced to Senior Director of Formulation Development. He was the inventor and lead scientist in the development of Unigene’s first commercial product, nasal spray Fortical®, and an inventor of the Peptelligence oral delivery technology.