caa a22 4500 605534004 CHVBK 20210128100840.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s10928-015-9425-1 doi (NATIONALLICENCE)springer-10.1007/s10928-015-9425-1 A PBPK model describing a xenobiotic with a short PK event scale [Elektronische Daten] [Xiaofeng Wang, Brian Davies] Physiologically-based pharmacokinetic (PBPK) modeling has been widely used in human risk assessment and in early drug development to predict human PK from in vitro and/or in vivo animal data. Recently, the application of PBPK modeling has been extended to the evaluation of drug-drug interactions. For most xenobiotic agents, the PK event scale such as elimination is in hours or days. This is much longer than the transit time of the agent in the body, and a PBPK model can be significantly simplified through lumping based on the physiochemical properties, mass transfer, and biotransformation. However, for a xenobiotic agent with a short PK event scale, e.g. in minutes, such an approach is not applicable. In this manuscript, the authors used the observed PK data from an ultrasound contrast agent to illustrate the role of a short PK event scale in the development of a suitable PBPK model. The model development process showed that a PBPK model assuming uniform venous and arterial blood pools, with a static lung model including alveolar and tissue regions, was unable to adequately capture the characteristics of the PK of the agent. Detailed information describing the pulmonary and cardiovascular circulation, and a heterogeneous dynamic lung model became necessary for the model. This exercise once again demonstrates the importance of the principles and methodologies that have been established since the 1960s that need to be followed during PBPK model development. Springer Science+Business Media New York, 2015 PBPK model nationallicence Dynamic lung model nationallicence Short PK event scale nationallicence Wang Xiaofeng FrontageTigermed, 19341, Exton, PA, USA aut Davies Brian Janssen R&D, LLC., 19477, Spring House, PA, USA aut Journal of Pharmacokinetics and Pharmacodynamics Springer US; http://www.springer-ny.com 42/4(2015-08-01), 409-416 1567-567X 42:4<409 2015 42 10928 https://doi.org/10.1007/s10928-015-9425-1 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10928-015-9425-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Xiaofeng FrontageTigermed, 19341, Exton, PA, USA aut NATIONALLICENCE 700 1- Davies Brian Janssen R&D, LLC., 19477, Spring House, PA, USA aut NATIONALLICENCE 773 0- Journal of Pharmacokinetics and Pharmacodynamics Springer US; http://www.springer-ny.com 42/4(2015-08-01), 409-416 1567-567X 42:4<409 2015 42 10928