Search the PBPK Model Repository

Quickly find freely available drug and population models in our PBPK model repository.

The models provided have been collated from published examples which authors have shared in our Published Model Collection or developed as part of various global health projects in our Global Health Collection. This search facility searches both model collections simultaneously.

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Found 57 Matches

Dihydroartemisinin (DHA)

Brand Name(s) include: D-Artepp, Artekin, Diphos, TimeQuin, Eurartesim, Duocotecxin

Disease: Malaria

Drug Class: Antimalarials

Date Updated: March 2022

The model at-a-glance

  Absorption Model

  • First-Order

  Volume of Distribution

  • Full PBPK (Method 2)

Note: Kp scalar used

  Route of Elimination

  • UGT1A9 (50%); UGT2B7(50%)

  Perpetrator DDI

  • CYP1A2 Inhibitor

  Validation

  • Four clinical studies describing single dose exposure of DHA were used to verify the PBPK model.  100% of studies were within 2-fold, of which 75% were within 1.5-fold.  Thus, the model performance was deemed acceptable.

  Limitations

  • The model does not account for the differences in plasma fraction unbound observed in patients compared to healthy volunteers.
  • Verification needed for perpetrator DDI assessment as literature data is unavailable at this time.

  Updates in V19

  • Updated in vitro data
    • Propranolol Papp: 30 cm/s x 106
  • Converted model to full PBPK with Vss predicted through Method 2
  • Updated retrograde clearance

 

Chlorzoxazone_RES_V20R1_Simcyp_20210512

The RES-Chlorzoxazone file was primarily developed as an inhibitor of CYP3A4. This document provides: 1. Examples of model performance 2. A summary of the key pharmacokinetic features of Chlorzoxazone considered within the model.

Brand Name(s) include: Crixivan

Disease: HIV

Drug Class: Protease inhibitor

Date of Review: 2020

Number of Models Reviewed: 1

Number of Models added to the Repository: 1

The model at-a-glance

 Publication

Ke AB, Nallani SC, Zhao P, Rostami-Hodjegan A, Unadkat JD. A PBPK Model to Predict Disposition of CYP3A-Metabolized Drugs in Pregnant Women: Verification and Discerning the Site of CYP3A Induction. CPT Pharmacometrics Syst Pharmacol. 2012 Sep 26;1(9):e3.

 Simcyp Version

V13

 Published Model Application

Prediction of exposure in pregnancy

 Absorption Model

First Order

 Volume of Distribution Details

Full PBPK

 Route of Elimination

  • CYP3A4 and renal clearance
    • Nonlinear CYP3A4 kinetics

 Perpetrator DDI

  • None 

 Advantages and Limitations

  • Model developed in healthy volunteers to simulate indinavir PK in pregnant women.
  • Can simulate iv and oral data.
  • Verified in healthy subjects and pregnant women in the third trimester.
  • FmCYP3A4 not verified with clinical data.

 Model Compound Files

  • v18_res_indinavir_simcyp_ke
Dolutegravir_RES_V23R1_Simcyp_20240404

Simcyp developed dolutegravir compound file. Compound summary including an outline on the current status and limitations included.

The RES-Dolutegravir model has been developed primarily as a UGT1A1 and CYP3A4 substrate, and as an inhibitor of renal MATE1 and OCT2 transporters. MATE1 and OCT2 inhibition parameters have been optimized to capture impact of dolutegravir on metformin pharmacokinetics but have not been independently verified. In vitro observed inhibition of MATE2-K by dolutegravir has not been included as the parameter could not be optimized and verified with the substrate models and clinical data available at the time of dolutegravir model development.

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