Jesse Swen PharmD, PhD is an associate professor of pharmacogenetics and clinical pharmacist at the Department of Clinical Pharmacy & Toxicology, Leiden University Medical Center. He is the chair of the laboratory section of the hospital pharmacy. His research efforts are in 2 areas. First, he is interested in finding genomic biomarkers for the response to pharmacotherapy in oncology. He is particularly interested in unravelling genetic mechanisms behind the response to antiangiogenic drugs. Second, he is interested in the clinical implementation of pharmacogenomics. He is one of the primary investigators of the “Ubiquitous Pharmacogenomics” project (www.upgx.eu). This project aims to implement pharmacogenetics across 7 European sites by genotyping 8,000 patients. Dr. Swen has published multiple papers on the identification of barriers for clinical implementation of pharmacogenomics and the development of approaches to overcome them. In addition he has (co)authored pharmacogenomic guidelines and is actively involved in the Dutch Pharmacogenetics Working Group and the Clinical Pharmacogenetics Implementation Consortium.