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Review
. 2018 Feb;7(2):82-89.
doi: 10.1002/psp4.12260. Epub 2017 Nov 23.

Predictive Performance of Physiologically Based Pharmacokinetic Models for the Effect of Food on Oral Drug Absorption: Current Status

Affiliations
Review

Predictive Performance of Physiologically Based Pharmacokinetic Models for the Effect of Food on Oral Drug Absorption: Current Status

Mengyao Li et al. CPT Pharmacometrics Syst Pharmacol. 2018 Feb.

Abstract

A comprehensive search in literature and published US Food and Drug Administration reviews was conducted to assess whether physiologically based pharmacokinetic (PBPK) modeling could be prospectively used to predict clinical food effect on oral drug absorption. Among the 48 resulted food effect predictions, ∼50% were predicted within 1.25-fold of observed, and 75% within 2-fold. Dissolution rate and precipitation time were commonly optimized parameters when PBPK modeling was not able to capture the food effect. The current work presents a knowledgebase for documenting PBPK experience to predict food effect.

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Figures

Figure 1
Figure 1
A general workflow to use physiologically based pharmacokinetic (PBPK) model to predict food effect (FE) based on cases analyzed. *Vd was individually fitted to clinical pharmacokinetic (PK) data under fasted and fed states in Shono et al.14 (2009) and Shono et al.15 (2010). CL was separately fitted to clinical PK data under fasted and fed states in Shono et al.14 (2009). GI, gastrointestinal.
Figure 2
Figure 2
Pie chart of Biopharmaceutics Classification System (BCS) class distribution for 27 compounds (n, % total).
Figure 3
Figure 3
Pie chart of physiologically based pharmacokinetic (PBPK) model platforms (absorption models) used in the 15 documents (n, % total). ACAT, Advanced Compartmental Absorption and Transit; ADAM, advanced dissolution, absorption, and metabolism.
Figure 4
Figure 4
Predictive performance assessment of physiologically based pharmacokinetic (PBPK) models that had prospective predictions. (a) Predicted area under the concentration‐time ratio (AUCR) vs. observed AUCR. (b) Predicted peak plasma concentration ratio (CmaxR) vs. the observed CmaxR. (c) Predicted time of maximum plasma concentration ratio (tmaxR) vs. the observed tmaxR. The red solid lines in all plots are lines of identity (y = x). Red dashed lines in all plots represent y = 0.8x and y = 1.25x. Blue dashed in all plots represent y = 1.25 and x = 1.25. Pink dotted lines in all plots represent y = 0.5x and y = 2x. BCS, Biopharmaceutics Classification System. NA, Not Available.
Figure 5
Figure 5
Summary of predictive performance (prospective predictions, left) and optimization cases (right) to match observed food effect (FE). AUCR, area under the concentration‐time ratio; PBPK, physiologically based pharmacokinetic; PK, pharmacokinetic.

References

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