Stefan Dekker, PhD, Consultant Stefan Dekker has a background in drug metabolism and biochemistry. Before joining J&S Preclinical Solutions, Stefan was a lecturer in the Pharmaceutical Sciences bachelor programme and Drug Discovery and Safety master programme at the Vrije Universiteit Amsterdam in the Netherlands. Stefan has a PhD in Molecular Toxicology and a MSc in Biomolecular Sciences from the Vrije Universiteit Amsterdam, the Netherlands. He is the (co-)author of 10 scientific publications in peer reviewed Journals. During his PhD Stefan focused on the role of drug metabolism in idiosyncratic adverse drug reactions.