Park, Min-Ho Shin, Seok-Ho Byeon, Jin-Ju Lee, Gwan-Ho Yu, Byung-Yong Shin, Young G. 2024-01-20T02:32:07Z 2024-01-20T02:32:07Z 2022-01-25 2017-01 1226-4512 https://pubs.kist.re.kr/handle/201004/123232 Over the last decade, physiologically based pharmacokinetics (PBPK) application has been extended significantly not only to predicting preclinical/ human PK but also to evaluating the drug-drug interaction (DDI) liability at the drug discovery or development stage. Herein, we describe a case study to illustrate the use of PBPK approach in predicting human PK as well as DDI using in silico, in vivo and in vitro derived parameters. This case was composed of five steps such as: simulation, verification, understanding of parameter sensitivity, optimization of the parameter and final evaluation. Caffeine and ciprofloxacin were used as tool compounds to demonstrate the "fit for purpose" application of PBPK modeling and simulation for this study. Compared to caffeine, the PBPK modeling for ciprofloxacin was challenging due to several factors including solubility, permeability, clearance and tissue distribution etc. Therefore, intensive parameter sensitivity analysis (PSA) was conducted to optimize the PBPK model for ciprofloxacin. Overall, the increase in C-max of caffeine by ciprofloxacin was not significant. However, the increase in AUC was observed and was proportional to the administered dose of ciprofloxacin. The predicted DDI and PK results were comparable to observed clinical data published in the literatures. This approach would be helpful in identifying potential key factors that could lead to significant impact on PBPK modeling and simulation for challenging compounds. English KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY Prediction of pharmacokinetics and drug-drug interaction potential using physiologically based pharmacokinetic (PBPK) modeling approach: A case study of caffeine and ciprofloxacin Article 10.4196/kjpp.2017.21.1.107 1 KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY, v.21, no.1, pp.107 - 115 KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY 21 1 107 115 N scie scopus kci ART002173980 000390966400013 2-s2.0-85009154183 Pharmacology & Pharmacy Physiology Pharmacology & Pharmacy Physiology Article CYP3A4 INDUCTION IN-VITRO CLINICAL PHARMACOKINETICS DISCOVERY VOLUNTEERS SIMULATION PROFILES HUMANS LIVER Caffeine Ciprofloxacin Drug-drug interaction Physiologically based pharmacokinetics