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 107 Matches

Dasabuvir_RES_V21R1_Simcyp_20220309

The V21 RES-Dasabuvir model has been developed as a substrate of CYP2C8 and CYP3A4. Compound file and performance summary are available.

Dolutegravir_RES_V23R1_Simcyp_20240404

Simcyp developed dolutegravir compound file. Compound summary including an outline on the current status and limitations included.

The RES-Dolutegravir model has been developed primarily as a UGT1A1 and CYP3A4 substrate, and as an inhibitor of renal MATE1 and OCT2 transporters. MATE1 and OCT2 inhibition parameters have been optimized to capture impact of dolutegravir on metformin pharmacokinetics but have not been independently verified. In vitro observed inhibition of MATE2-K by dolutegravir has not been included as the parameter could not be optimized and verified with the substrate models and clinical data available at the time of dolutegravir model development.

Rilpivirine

Brand Name: Edurant, Rekambys

Disease: HIV

Drug Class: non-nucleoside reverse transcriptase inhibitor

Version: 21

Date Updated: March 2024

The model at-a-glance

 Absorption Model

First order

 Volume of Distribution Details

Full PBPK (Method 3)

 Route of Elimination

  • CYP3A4 = 63.2%; Additional HLM = 36.8%

 Perpetrator DDI

  • CYP3A4 Inhibition
  • CYP3A4 Induction

 Validation

The refined model was able to recover clinically observed concentration-time profiles of rilpivirine following single and multiple dosing.

Seven clinical DDI studies where rilpivirine was administered with either efavirenz, ketoconazole, rifampin, or rifabutin were used to verify the PBPK model of rilpivirine as a victim. In comparison of predicted vs. observed AUC, 85.7% of the studies were within 1.5-fold.

Three clinical DDI studies where rilpivirine was administered with either sildenafil, ethinylestradiol, or midazolam were used to verify the PBPK model of rilpivirine as a perpetrator. In comparison of predicted vs. observed AUC, 100% of the studies were within 1.25-fold.

 Limitations

The net in vivo effect of rilpivirine as either an inhibitor or an inducer of CYP3A appears to be negligible based on the available DDI studies

Brand Name(s) include: Viread

Disease: HIV

Drug Class: Nucleoside Reverse Transcriptase Inhibitors (NRTI)

Date of Review: 2020

Number of Models Reviewed: 3

Number of Models added to the Repository: 3

The model at-a-glance

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 19, 339–350 (2019).

 Simcyp Version

V17

 Absorption Model

  • First-Order
 Volume of Distribution Details
  • Full

 Route of Elimination

  • Renal Clearance
  • Additional non-specific clearance

 Perpetrator DDI

  • None

 Advantages and Limitations

  • Developed in healthy volunteers to extrapolate to elderly and renally impaired populations

 Model Compound Files

  • v17_res_tenofovir_simcyp_desousamendez_2019_SD.wksz
  • v17_res_tenofovir_simcyp_desousamendez_2019_young_pop.wksz
  • v17_res_tenofovir_simcyp_desousamendez_2019_elderly_pop.wksz

Publication 

Liu S N, Desta Z, Gufford B T. Probenecid‐Boosted Tenofovir: A Physiologically‐Based Pharmacokinetic Model‐Informed Strategy for On‐Demand HIV Preexposure Prophylaxis[J]. CPT: pharmacometrics& systems pharmacology, 2020, 9(1): 40- 47.

 Simcyp Version

V15

 Absorption Model

  • First-Order
 Volume of Distribution Details
  • Full

 Route of Elimination

  • Permeability-limited kidney model
  • Renal uptake into the kidney by OAT1 and OAT3
  • Renal efflux by MRP4
  • Hepatic elimination with sinusoidal uptake

 Perpetrator DDI

  • None

 Advantages and Limitations

  • Based on De Sousa Mendes (2015) paper, OAT3 kinetics added to model.
  • Model used to simulate tenofovir as a victim of probenecid DDI.

 Model Compound Files

  • v15_res_tenofovir_simcyp_Liu_2020.wksz
  • v15_res_tenofovir_simcyp_Liu_2020.cmpz

Publication 

De Sousa Mendes M, Hirt D, Urien S, Valade E, Bouazza N, Foissac F, Blanche S, Treluyer JM, Benaboud S. Physiologically-based pharmacokinetic modeling of renally excreted antiretroviral drugs in pregnant women. Br J Clin Pharmacol. 2015 Nov;80(5):1031-41.

 Simcyp Version

V13

 Published Model Application

Prediction of exposure in pregnancy

 Absorption Model

  • First-Order
 Volume of Distribution Details
  • Full

 Route of Elimination

  • Renal clearance with uptake by OAT1 and efflux by MRP4
  • Hepatic transporter clearance
  • Additional non-specific clearance

 Perpetrator DDI

  • None

 Advantages and Limitations

  • Model developed to simulate PK in pregnant women after development in healthy populations.
  • Low risk of DDI.
  • Tenofovir is administered as a rapidly hydrolyzed prodrug (Tenofovir disoproxil fumarate). The 300 mg TDF dose was implemented as a 136 mg of tenofovir. The PK of the prodrug is not considered.
  • Incorporates high degree of variability (%CV 60%) in the fraction absorbed.

 Model Compound Files

  • v13_res_tenofovir_simcyp_desousamendez_2015_1mg_kg.wksz
  • v13_res_tenofovir_simcyp_desousamendez_2015_3mg_kg.wksz
  • v13_res_tenofovir_simcyp_desousamendez_2015_PO.wksz
  • v13_res_tenofovir_simcyp_desousamendez_2015.cmpz

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