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
Metabolite of fesoterodine. Note/correction: 1. PKa 9.3 instead of 7.6 (in supplemental materials) 2. the intrinsic clearance (CLint) values of CYP3A4 and CYP2D6 should be 0.085 and 1.455 uL/min/pmol enzyme 3. note simulation with ketoconazole, ketoconazole cmp file modified with p-gp inhibition constant (Ki) of 0.015 uM (assumed)
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).
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.
Brand Name(s) include: Emtriva, Truvada
Disease: HIV
Drug Class: Nucleoside reverse transcriptase inhibitor
Date of Review: 2020
Number of Models Reviewed: 2
Number of Models added to the Repository: 2
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Publication |
De Sousa Mendes, M., Hirt, D., Urien, S., Valade, E., Bouazza, N., Foissac, F., Blanche, S., Treluyer, J. M., & Benaboud, S. (2015). Physiologically-based pharmacokinetic modeling of renally excreted antiretroviral drugs in pregnant women. British journal of clinical pharmacology, 80(5), 1031–1041. |
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Simcyp Version |
V13 |
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Published Model Application |
Prediction of exposure in pregnancy |
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Absorption Model |
First Order |
| Volume of Distribution Details |
Full PBPK |
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Route of Elimination |
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Perpetrator DDI |
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Advantages and Limitations |
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Model Compound Files |
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Publication |
De Sousa Mendes M, Chetty M. Are Standard Doses of Renally-Excreted Antiretrovirals in Older Patients Appropriate: A PBPK Study Comparing Exposures in the Elderly Population With Those in Renal Impairment. Drugs R D. 2019 Dec;19(4):339-350. |
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Simcyp Version |
V17 |
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Published Model Application |
Prediction of exposure in renal impairment |
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Absorption Model |
First Order |
| Volume of Distribution Details |
Full PBPK |
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Route of Elimination |
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Perpetrator DDI |
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Advantages and Limitations |
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Model Compound Files |
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