Exploratory Subgroup Analyses in Clinical Research

GERD ROSENKRANZ spent nearly 30 years as a biostatistician in different roles and responsibilities in the pharmaceutical industry, mainly in preclinical and clinical development. After retiring from industry, he spent two years as visiting professor at the Medical University of Vienna and is now a statistical consultant. He is a member of the focus group on subgroup analysis by the European Federation of Statisticians in the Pharmaceutical Industry (EFSPI), and a former Editor-in-Chief of the Wiley journal Pharmaceutical Statistics where he remains on the Editorial Board.