A critical piece in drug discovery and development is conducting DMPK (Drug Metabolism and Pharmacokinetics) studies, often referred to as ADME-T (Absorption, Distribution, Metabolism, Elimination, Toxicity). ADME studies are designed to investigate how a chemical (e.g. a drug candidate) is processed by a living organism and how ADME properties could affect its activity. For a drug candidate, "optimizing" ADME properties before clinical investigation is of utmost importance to ensure it is as effective and safe as possible; it is estimated that close to 50% of drug candidates fail because of unacceptable efficacy due to an unfavourable ADME profile. This course aims to provide PhD students engaged in the early drug discovery process awareness about the importance of preclinical ADME investigation, the strategies and the methodologies that assist to achieve efficiency in the hit-to-lead process.