modelCalcifediol
Extends from Pharmacolibrary.Drugs.ATC.H.H05BX05.
Information
| name: | Calcifediol | |
| ATC code: | H05BX05 | route: | oral |
| compartments: | 1 | |
| dosage: | 20 | mg |
| volume of distribution: | 0.5 | L |
| clearance: | 0.19 | L/h |
| other parameters in model implementation | ||
Calcifediol, also known as 25-hydroxyvitamin D3, is a prohormone of the active form of vitamin D. It is used in the management of vitamin D deficiency and in certain cases of chronic kidney disease to treat secondary hyperparathyroidism. The drug is approved and commonly used in clinical practice.
Pharmacokinetics
Reported in healthy adult subjects following single oral administration.
References
Ocampo-Pelland, AS, et al., & Riggs, MM (2017). Model-based meta-analysis for comparing Vitamin D2 and D3 parent-metabolite pharmacokinetics. Journal of pharmacokinetics and pharmacodynamics 44(4) 375–388. DOI:10.1007/s10928-017-9525-1 PUBMED:https://pubmed.ncbi.nlm.nih.gov/28466367
Tuey, SM, et al., & Joy, MS (2024). Population Pharmacokinetic Model of Vitamin D. International journal of molecular sciences 25(22) –. DOI:10.3390/ijms252212279 PUBMED:https://pubmed.ncbi.nlm.nih.gov/39596344
Hsu, S, et al., & de Boer, IH (2021). Differences in 25-Hydroxyvitamin D Clearance by eGFR and Race: A Pharmacokinetic Study. Journal of the American Society of Nephrology : JASN 32(1) 188–198. DOI:10.1681/ASN.2020050625 PUBMED:https://pubmed.ncbi.nlm.nih.gov/33115916
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)