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.

To contribute published user compound and/or population files, upload your files here: Upload Model Files

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Found 93 Matches

Brand Name(s) include: Kaletra (fixed dose combination with low dose ritonavir)

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

Wagner et al., Physiologically-Based Pharmacokinetic Modeling for Predicting the Effect of Intrinsic and Extrinsic Factors on Darunavir or Lopinavir Exposure Co-administered with Ritonavir. J Clin Pharmacol. 2017 October ; 57(10): 1295–1304.  (FDA model)

 Simcyp Version

V13

 Absorption Model

First-Order 

 Volume of Distribution Details

Minimal PBPK

 Route of Elimination

  • CYP3A4 and renal clearance

 Perpetrator DDI

  • CYP3A4 time-dependent inhibitor
  • CYP3A5 time-dependent inhibitor

 Advantages and Limitations

  • Model developed to predict the impact of hepatic impairment on lopinavir PK.
  • Accurately replicates 400 mg dose (therapeutic dose). Overprediction of 200 mg dose and underprediction of 800 mg single dose.
  • DDI with ritonavir works with ritonavir file published in V18, but not the updated V19 file.
  • Perpetrator DDI not verified.

 Model Compound Files

  • v13_res_lopinavir_simcyp_wagner
  • v13_res_ritonavir_simcyp_wagner
Curcumin_Japanese_V19R1_AstraZeneca_20210726

For curcumin, the Japanese population library file from the Simcyp Human Simulator was used, and a sulfotransferase clearance pathway was incorporated as published for the curcumin PBPK model (Physiologically-Based Pharmacokinetic Predictions of the Effect of Curcumin on Metabolism of Imatinib and Bosutinib: In Vitro and In Vivo Disconnect - PubMed (nih.gov)). The curcumin model used in the publication linked is also based on this earlier published model. Fugut=1 represents worst-case scenario DDI while Fugut=0.03 represents assumption that fu,gut = fu,whole blood.

Rosuvastatin_V17R1_ASTAR_20190724

The submitted compound file for Rosuvastatin uses ADAM, Full-PBPK method 2, enzyme kinetics for metabolism and transporter kinetics for the permeability limited liver model and MechKim model. Tissue : Plasma partition coefficients have been modified to include data obtained from rat distribution studies. It has been used together with the unmodified Sim-Healthy Volunteer library file. https://www.ncbi.nlm.nih.gov/pubmed/31079160

Dihydroartemisinin (DHA) from Artesunate

Brand Name(s) include: Camoquin (FDC with amodiaquine)

Disease: Malaria

Drug Class: Antimalarials

Related Drugs: DHA, Amodiaquine

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

  • One clinical study describing single dose exposure of DHA was used to verify the PBPK model.  100% of studies were within 2-fold, of which 100% were within 1.5-fold. 

  Limitations

  • The absorption model does not consider the formation of ‘DHA from artesunate’ mechanistically. Instead, an optimized ka and fa were applied to the DHA model to describe the observed plasma concentration-time curve of DHA. The remainder of the DHA model was identical to the DHA model which is described above.
  • 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

 

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