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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 7 Matches

Quinine

Model Files Publication

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 vitrodata 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

Search Score: 2

Eltrombopag_RES_V21R1_Simcyp_20230615

Model Files Publication

Prepared: June 2023 The RES-Eltrombopag_V21 model has been developed primarily as an 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. The file is verified as tablet in the fasted state as that formulation was used in the Rosuvastatin DDI (Allred et al., 2011). The PK for Eltrombopag was evaluated at 25mg, 50mg and 75mg SD; 50mg QD, 100mg QD, 150mg QD, and 200mg QD. Note, the Rosuvastatin DDI with 75mg QD was used to fit the BCRP component in Rosuvastatin V21 file using the New GI physiology. The BCRP component of Rosuvastatin was then verified with other BCRP-Inhibitors available on the members area (as specified in the attached document) or within the Simcyp Simulator. Allred, A. J., C. J. Bowen, J. W. Park, B. Peng, D. D. Williams, M. B. Wire, and E. Lee. 2011. “Eltrombopag Increases Plasma Rosuvastatin Exposure in Healthy Volunteers.” Journal Article. Br J Clin Pharmacol 72 (2): 321–29.

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

Mefloquine

Model Files Publication

Brand Name(s) include: Lariam, Mephaquin, Mefliam

Disease: Malaria

Drug Class: Antimalarials

Date Updated: November 2021

The model at-a-glance

Absorption Model	First-Order
Volume of Distribution	Full PBPK (Method 2)
Route of Elimination	CYP3A4 (fm =100); renal clearance (fe = 0.05)
Perpetrator DDI	CYP2C9 Inhibitor CYP2D6 Inhibitor CYP3A4 Inhibitor
Validation	Six clinical studies describing single and multiple dose exposure of mefloquine were used the verify the PBPK model. Most of the studies (83%) were within 1.5-fold, with all simulations falling within 2-fold of the observed values. Two clinical DDI studies where mefloquine was the victim of a CYP3A4-mediated DDI were accurately recovered using the PBPK model.
Limitations	Only profiles of plasma concentrations assessed, many studies report blood concentrations Mefloquine has significant uptake into erythrocytes and haematocrit levels typically not reported Could be important in disease population (Possible time-varying B/P for Malaria patients?) Cmax for doses > 750 mg over predicted fa possibly decreases with dose, more data needed to fully determine the cause Most literature data extracted from graphs of mean data, difficulty determining accurate early time points due to poor image quality Verification needed for perpetrator DDI assessment as literature data is unavailable at this time
Updates in V19	Updated in vitrodata fu_p: 0.016 -> 0.015 B:P ratio 1.7 -> 1.1 and subsequent re-calculation of CLint using the retrograde approach Converted model to full PBPK distribution model with Vss predicted through Method 2 Sensitivity analysis of ka

Search Score: 1

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Quinine

The model at-a-glance

Eltrombopag_RES_V21R1_Simcyp_20230615

Velpatasvir_RES_V21R1_Simcyp_20230615

Mefloquine

The model at-a-glance

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