From physicochemistry to absorption and distribution: predictive mechanistic modelling and computational tools.
During the past decade, the pharmaceutical industry has invested considerably in technologies that have the potential to increase throughput in discovery projects. For large compound libraries, efficacy, availability and safety should be determined as early and as reliably as possible. The latest step in this effort is the implementation of in silico methods that combine and interpret (sometimes replace) experimental in vitro data. For ADME properties (absorption, distribution, metabolism and excretion) rational predictive models have been developed that rely on basic physicochemical input data and on mechanistic descriptions of the underlying biophysical and biochemical processes. Some of these models have become commercially available (e.g., GastroPlus: Simulations Plus; PK-Map, PK-Sim: Bayer Technology Services). The contribution of such models to an optimised research and development process will be discussed.
Willmann
Stefan
S
Bayer Technology Services GmbH, Process Technology/Biophysics, 42096 Wuppertal, Germany. Stefan.Willmann@bayertechnology.com
Lippert
Jörg
J
Schmitt
Walter
W
D000818:Animals; D019295:Computational Biology / Q000379:methods* / Q000639:trends; D004353:Drug Evaluation, Preclinical / Q000379:methods / Q000639:trends; D006801:Humans; D007408:Intestinal Absorption / Q000187:drug effects / Q000502:physiology*; D004364:Pharmaceutical Preparations / Q000008:administration & dosage / Q000737:chemistry* / Q000378:metabolism; D011237:Predictive Value of Tests; D013678:Technology, Pharmaceutical / Q000379:methods* / Q000639:trends
D004364:Pharmaceutical Preparations