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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

Pyronaridine

Model Files Publication

Brand Name(s) include: Pyramax

Disease: Malaria

Drug Class: Antimalarials

Date Updated: March 2022

Related files: Artesunate (fixed dose combination – Pyramax)

The model at-a-glance

Absorption Model	First-Order
Volume of Distribution	Full PBPK (Method 3) Note: Kp scalar used
Route of Elimination	CYP1A2, CYP2B6, CYP2C8, CYP2D6 and CYP3A4
Perpetrator DDI	CYP2D6 Inhibitor P-gp Inhibitor
Validation	Two clinical studies describing pyronaridine exposure were available for model verification. 100% of predicted Cmax were within 1.5-fold of those observed whereas 40% of AUC were predicted within 1.5-fold of observed. This can be explained as observed exposure at 9mg/kg dose was lower than at 6 mg/kg. The model recovered the observed data at the 6 mg/kg dose but then over predicted that at the higher dose.
Limitations	One challenge in the verification of the model is the diverse ethnicities of subjects in reported clinical data and how best to reflect this in simulations. In the absence of virtual Korean populations within the Simulator, the Caucasian population was modified in terms of bodyweight. In the absence of supporting information, no changes to enzyme abundance (pmol/mg) were made to the population, although changes to liver weight (as a function of body weight) and hence total CYP abundance were propagated into the model.
Updates in V19	Switched to Method 3 to facilitate like for like comparisons for covid- 19 repurposing strategies

Search Score: 1

Darunavir&Ritonavir_V13R2_USFDA_20190719

Model Files Publication

Compound files from publication: Physiologically Based Pharmacokinetic Modeling for Predicting the Effect of Intrinsic and Extrinsic Factors on Darunavir or Lopinavir Exposure Coadministered With Ritonavir Wagner, C., Zhao, P., Arya, V., Mullick, C., Struble, K. and Au, S (2017). https://doi.org/10.1002/jcph.936 /PMID: 28569994 These two files were used in combination (linked models). Note: Darunavir model also has fu,mic for DDI, and induction parameters for CYP1A that were not captured in Supplemental Table 1. Correction: Ritonavir's pKa2 should be 2.6 instead of 2.8 in Suppl. Table 1. https://accp1.onlinelibrary.wiley.com/doi/full/10.1002/jcph.936

Search Score: 1

Curcumin_Japanese_V19R1_AstraZeneca_20210726

Model Files Publication

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.

Search Score: 1

Velpatasvir_RES_V21R1_Simcyp_20230615

Model Files Publication

Prepared: June 2023 The RES-Velpatasvir_V21 model has been developed primarily as inhibitor of hepatic OATP1B1 and OATP1B3, and intestinal BCRP using the New GI physiology in Simcyp V21 with altered GI tract population inputs that became default in V22. There are limited PK and DDI studies available for Velpatasvir and it is generally used in a fixed dose combination using 100 mg Velpatasvir. Thus, the Velpatasvir file is a Fit-for-purpose PBPK model for 50 mg to 100 mg QD. The Rosuvastatin DDI is a 100 mg QD study. Example workspaces for Velpatasvir PK and the DDI with Rosuvastatin are attached. The BCRP component of Rosuvastatin (V21 using the New GI physiology) was optimised using Eltrombopag and then verified with other BCRP-Inhibitors available on the members area or within the Simcyp Simulator, see attached ‘BCRP-Inhibitor V21’ document for details.

Search Score: 1

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Pyronaridine

The model at-a-glance

Darunavir&Ritonavir_V13R2_USFDA_20190719

Curcumin_Japanese_V19R1_AstraZeneca_20210726

Velpatasvir_RES_V21R1_Simcyp_20230615

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