modelEstradiol
Extends from Pharmacolibrary.Drugs.ATC.G.G03CA03.
Information
| name: | Estradiol | |
| ATC code: | G03CA03 | route: | oral |
| compartments: | 2 | |
| dosage: | 2 | mg |
| volume of distribution: | 0.9 | L |
| clearance: | 20 | L/h |
| other parameters in model implementation | ||
Estradiol is a potent estrogen steroid hormone involved in the development and maintenance of female reproductive tissues and secondary sexual characteristics. It is widely used as hormone replacement therapy in menopausal women, in contraception, and in transgender hormone therapy. Estradiol is approved and in clinical use today in various formulations.
Pharmacokinetics
Pharmacokinetic parameters reported for healthy adult female volunteers aged 18-35 after a single oral dose of micronized estradiol.
References
Doll, E, et al., & Sarvaideo, JL (2022). Pharmacokinetics of Sublingual Versus Oral Estradiol in Transgender Women. Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists 28(3) 237–242. DOI:10.1016/j.eprac.2021.11.081 PUBMED:https://pubmed.ncbi.nlm.nih.gov/34781041
Zhang, L, et al., & Shentu, J (2024). Pharmacokinetics and Safety of Estradiol Valerate Tablet and Its Generic: A Phase 1 Bioequivalence Study in Healthy Chinese Postmenopausal Female Subjects. Drug design, development and therapy 18 2891–2904. DOI:10.2147/DDDT.S460681 PUBMED:https://pubmed.ncbi.nlm.nih.gov/39006193
Luo, D, et al., & Jusko, WJ (2019). Altered pharmacokinetics of combined oral contraceptives in obesity - multistudy assessment. Contraception 99(4) 256–263. DOI:10.1016/j.contraception.2018.12.009 PUBMED:https://pubmed.ncbi.nlm.nih.gov/30684471
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.Volume | Vdp (from PK_2C) | VdpPerKg*weight | Volume of distribution (m3) |
| Modelica.Units.SI.SpecificVolume | VdpPerKg (from PK_2C) | 0.9 | Volume of distribution peripheral(l/kg) |
| Pharmacolibrary.Types.Clearance | k12 (from PK_2C) | 1 | intercompartmental C-P clearance |
| Pharmacolibrary.Types.Clearance | k21 (from PK_2C) | 1 | intercompartmental P-C clearance |
| Pharmacolibrary.Types.TransferRate | ka (from PK_2C_enteral) | 0.016666666666666666 | first order absorption rate |
| Modelica.Units.SI.Time | Tlag (from PK_2C_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) | ||
| Interfaces.ConcentrationPort_b | peripheralCPort (from PK_2C) | ||
| Pharmacolibrary.Types.ConcentrationOutput | C_peripheral1 (from PK_2C) |
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 | |
| Pharmacolibrary.Pharmacokinetic.TransferFirstOrderNonSym | transfer (from PK_2C) | ||
| Pharmacolibrary.Pharmacokinetic.NoPerfusedTissueCompartment | peripheral (from PK_2C) |
Revisions
- 06/2025 Tomas Kulhanek, generated model from data extracted from PUBMED, DrugBank and LLM(GPT4.1)