modelAbirateroneAndPrednisolo
Extends from Pharmacolibrary.Drugs.ATC.L.L02BX53.
Information
| name: | AbirateroneAndPrednisolone | |
| ATC code: | L02BX53 | route: | oral |
| compartments: | 1 | |
| dosage: | 1000 | mg |
| volume of distribution: | 5630 | L |
| clearance: | 177 | L/h |
| other parameters in model implementation | ||
Abiraterone acetate is an oral medication used in combination with prednisolone primarily for the treatment of metastatic castration-resistant prostate cancer (mCRPC). The drug works by inhibiting CYP17A1, an enzyme involved in androgen biosynthesis, thereby reducing androgen levels that stimulate prostate cancer growth. Prednisolone is used concomitantly to counteract mineralocorticoid excess resulting from abiraterone therapy. This combination is approved and in clinical use worldwide for advanced prostate cancer.
Pharmacokinetics
Pharmacokinetics reported for adult male patients (typically age 60+ years) with metastatic castration-resistant prostate cancer, receiving the approved therapeutic dose of abiraterone acetate and prednisolone by the oral route in the fed or fasted state.
References
Yoshida, K, et al., & Chanu, P (2021). Population Pharmacokinetics of Ipatasertib and Its Metabolite in Cancer Patients. Journal of clinical pharmacology 61(12) 1579–1591. DOI:10.1002/jcph.1942 PUBMED:https://pubmed.ncbi.nlm.nih.gov/34273118
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Mass | weight (from PK_1C) | 75 | patient weight (kg) |
| Modelica.Units.SI.SpecificVolume | VdPerKg (from PK_1C) | 0.9 | Volume of distribution (L/kg) |
| Modelica.Units.SI.MassFraction | F (from PK_1C) | 0.8 | bioavailiability (0-1) |
| Pharmacolibrary.Types.Clearance | Cl (from PK_1C) | 20 | clearance |
| Modelica.Units.SI.Time | adminTime (from PK_1C) | 60 | first administration time (s) |
| Modelica.Units.SI.Time | adminDuration (from PK_1C) | 600 | administration duration (s) |
| Modelica.Units.SI.Time | adminPeriod (from PK_1C) | 8*60*60 | period of administration (default 8 hours)(s) |
| Pharmacolibrary.Types.Mass | adminMass (from PK_1C) | 1000 | administration mass (mg) |
| Integer | adminCount (from PK_1C) | 8 | number of dose administered (1) |
| Pharmacolibrary.Types.Volume | Vd (from PK_1C) | VdPerKg*weight | Volume of distribution (m3) |
| Pharmacolibrary.Types.MassConcentration | Cmin (from PK_1C) | 0.004 | minimal therapeutic range |
| Pharmacolibrary.Types.MassConcentration | Cmax (from PK_1C) | 0.008 | minimal therapeutic range |
| Pharmacolibrary.Types.MassConcentration | Ctox_peak (from PK_1C) | 0.012 | toxicity peak level |
| Pharmacolibrary.Types.MassConcentration | Ctox_trough (from PK_1C) | 0.006 | toxicity trough level |
| Pharmacolibrary.Types.TransferRate | ka (from PK_1C_enteral) | 0.016666666666666666 | first order absorption rate |
| Modelica.Units.SI.Time | Tlag (from PK_1C_enteral) | 600 | delay between oral administration and absorption (default 10min) |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Types.ConcentrationOutput | C_central (from PK_1C) | ||
| Interfaces.ConcentrationPort_b | centralCPort (from PK_1C) |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Pharmacokinetic.NoPerfusedTissueCompartment | central (from PK_1C) | ||
| Pharmacokinetic.ClearanceDrivenElimination | elim (from PK_1C) | ||
| Sources.PeriodicDose | periodicDose (from PK_1C) | ||
| Modelica.Units.SI.Time | t1_2 (from PK_1C) | elimination half-life |
Revisions
- 06/2025 Tomas Kulhanek, generated model from data extracted from PUBMED, DrugBank and LLM(GPT4.1)