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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 101 Matches

Tafenoquine

Model Files Publication

Brand Name(s) include: Arakoda, Krintafel

Disease: Malaria

Drug Class: Antimalarials

Date Updated: March 2022

The model at-a-glance

Absorption Model	First-Order
Volume of Distribution	Full PBPK (Method 3) Note: Kp scalar used
Route of Elimination	Undefined liver intrinsic clearance
Perpetrator DDI	CYP2C9 Inhibitor CYP3A4 Inhibitor
Validation	Four clinical studies describing single and multiple dose exposure of tafenoquine were used to verify the PBPK model, although some of these provided PK profiles and no PK parameters and vice versa. Of the clinical studies describing PK parameters, the model recovered 100% of the observed PK parameters within 1.5-fold (66% within 0.8-1.25-fold) and hence the model is considered predictive.
Limitations	Tafenoquine is administered with food to increase its exposure and minimize gastrointestinal side effects. The PBPK model was therefore developed to recover the PK of tafenoquine in the fed state. It should be noted that in the absence of information defining the fm of drug metabolizing enzymes, an undefined liver intrinsic clearance is used in the model and hence the model is not able to simulate the liability of tafenoquine as a victim of DDIs.

Search Score: 1

MefenamicAcid_Dapagliflozin_V15R1_Pfizer_20220726

Model Files Publication

Mefenamic acid and dapagliflozin/healthy volunteer. This workspace simulates the UGT mediated DDI after multiple dose administration of UGT inhibitor mefenamic acid. The workspace shows Dapaglifazin as substrate of UGTA9 and UGT2B7. Mefenamic Acid is used in the inhibitor position and Ki values against UGT1A9 and UGT2B7 are included in the workspace.

Search Score: 1

Darolutamide_RES_V21R1_Simcyp_20230615

Model Files Publication

The RES-Darolutamide_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. Darolutamide shows dose proportional PK between 100 to 700 mg BID. It is a BSCII compound, where the metabolite is a potent BCRP-inhibitor too. Darolutamide is possibly a weak CYP3A inducer in the clinic. The back-conversion of Keto-darolutamide to Darolutamide is efficiently catalyzed via cytosolic AKR1C3 (in vitro). This back-conversion is also observed in incubations of feces under anaerobic conditions (in vitro). In the compound fit-for-purpose compound file, the back-conversion was fixed to recover the concentration time profile for the 600 mg BID as this was the dose for the reported Rosuvastatin DDI. Note that two workspaces need to be run to simulate the Darolutamide DDI and then the results have to be combined. This is due to having to switch the position of Darolutamide and rosuvastatin (limitations on functionality on inhibitory metabolite in the Simcyp Simulator currently).

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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Tafenoquine

The model at-a-glance

MefenamicAcid_Dapagliflozin_V15R1_Pfizer_20220726

Darolutamide_RES_V21R1_Simcyp_20230615

Velpatasvir_RES_V21R1_Simcyp_20230615

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