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 9 Matches

Enfuviridine

Brand Name(s) include: Fuzeon

Disease: HIV

Drug Class: HIV Entry and Fusion Inhibitor

Date of Review: 2020

Number of Models Reviewed: 1

Number of Models added to the Repository: 1

The model at-a-glance

 Publication

Pan, X., Stader, F., Abduljalil, K., Gill, K. L., Johnson, T. N., Gardner, I., & Jamei, M. (2020). Development and Application of a Physiologically-Based Pharmacokinetic Model to Predict the Pharmacokinetics of Therapeutic Proteins from Full-term Neonates to Adolescents. The AAPS journal, 22(4), 76.

 Simcyp Version

V18

 Published Model Application

Prediction of exposure in noenates

 Absorption Model

First Order

 Volume of Distribution Details

Full PBPK

 Route of Elimination

  • Renal filtration
  • Additional systemic clearance

 Perpetrator DDI

  • None 

 Advantages and Limitations

  • Model was developed to predict the PK of enfuviridine in neonates and adolescents.
  • Model was verified in adult and pediatric populations.
  • Model was verified for IV and subcutaneous dosing.
  • Model was developed in V18.  Due to changes in the Simulator, the model would need to be revalidated for use in V20 and subsequent versions.

 Model Compound Files

  • v18_res_enfuviridine_simcyp_pan
  • v18_res_enfuviridine_simcyp_pan_sc_paed
Azithromycin

Brand Name(s) include: Zithromax

Disease: Malaria

Drug Class: Marcolide Antibiotic

Date Updated: March 2021

The model at-a-glance

  Absorption Model

  • First-Order

  Volume of Distribution

  • Full PBPK (Method 2)

Note: A Kp scalar (0.04) was used in the model

  Route of Elimination

  • No metabolism; a biliary CLint was input based on clinical data

  Perpetrator DDI

  • None

  Validation

  • Two clinical studies describing single and multiple dose exposure of atovaquone were used to verify the PBPK model. 100% of studies were within 1.5-fold.

  Limitations

  • There are some data to suggest atovaquone is an inhibitor of BCRP.  This is currently not included within the model.

  Updates in V19

  • Updated in vitro­ data
    • LogP: 5.8 -> 8.4
    • Caco-2 Papp > 300 x 10-6 cm/s
    • Propranolol Papp 101 x 10-6 cm/s
  • Optimized ka and tlag
  • Converted from minimal PBPK model to full PBPK model

 

Lamotrigine_V17R1_HussonUniversity_20210628
https://pubmed.ncbi.nlm.nih.gov/30460522/ Lamotrigine IR and XR formulations in adults and in children aged between 4 and 17 years. 1) The file is set as FO file (IR formulation), the ADAM model can be activated and the corresponding models, like the segregated transit time model are then available to simulate the XR formulation. 2) The model is using absolute scaling for UGT1A3 and UGT1A4. For V21 the absolute abundance data for UGT1A3 were updated and hence the corresponding ISEF may require adjustment if the file is used in later versions.

Brand Name(s) include: Qualaquin

Disease: Malaria

Drug Class: Antimalarials

Date Updated: 2021

The model at-a-glance

  Absorption Model

First-Order

  Volume of Distribution

Minimal PBPK (Method 1)

  Route of Elimination

CYP3A4 (fm = 0.50); renal clearance (fe = 0.1)

  Perpetrator DDI

  • CYP2D6 Inhibitor

  Validation

  • Three clinical studies describing Quinine PK were identified for model verification.
  • Three clinical DDI studies where quinine was the victim of CYP-mediated DDIs were used to verify the PBPK model.  All studies were well recovered with simulated Cmax and AUC GMRs within 1.5-fold of the observed

  Limitations

  • The Simcyp quinine PBPK model was able to recover interactions CYP3A inducers and inhibitors with reasonable accuracy.
  • Verification needed for perpetrator DDI assessment as literature data is unavailable at this time.

  Updates in V19

  • Updated in vitro­ data
    • fup: 0.199 -> 0.37
    • Caco-2 A -> B Permeability: 70 x 10-6 cm/s -> 39 x 10-6 cm/s
    • Propranolol reference Permeability: 101 x 10-6 cm/s -> 45 x 10-6 cm/s
  • Minimal PBPK with Vss predicted through Method 1
    • Updated retrograde clearance

 

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