Sandra Klein is a pharmacist by training and got her pharmacist's license and her Ph.D. from the Goethe University of Frankfurt. She was a postdoctoral fellow at Eastman Chemical Company in Kingsport/TN, USA and since 2010 is a Professor of Pharmaceutical Technology at the University of Greifswald, Germany. Her current research is focused on developing bio-predictive in vitro models and oral dosage forms for special patient groups, particularly the pediatric and geriatric population. Other research interests include the design of predictive and accelerated test methods for lozenges, vaginal delivery systems and depot parenterals and she has also a strong interest in establishing formulation strategies for enhancing the bioavailability of poorly soluble drugs. Sandra has almost 20 years’ experience in biorelevant dissolution testing and is (co-) author of various original manuscripts and book chapters on this topic. She is a member of AAPS and DPhG, a board member of APV, a core group member of EuPFI, co-lead of the EuPFI biopharmaceutics workstream and the UNGAP specific populations working group and editor-in-chief of DiePharmazie.