Thomas studied at the Ruhr-University Bochum, Germany biology focused on physiology and pharmacology. He finished his PhD in 1989 and spent a short time as postDoc at the University Leuven, Belgium. In 1990 he started as lab head in the Institute of Pharmacology at Bayer AG in Wuppertal. After different positions with increasing responsibility along the value chain of cardiovascular research he took the position as department head of the global function “Published Information Bayer Healthcare“ and became later head of the department “Product Related Research Diabetes“. Since 2006 Thomas is head of the department „Translational Research“, which later on became the global function “Biomarker Research”. The main task of this department is translational research supporting early clinical trials by identification and qualification of specific biomarkers and evaluation of new technologies as well as enhancing the predictivity of preclinical models. The focus of his activities is on less invasive procedures to define biomarkers which can be used to monitor and/or predict response treatment and support patient stratification for targeted therapies.