Dorajoo et al. 2019

Optimizing Vancomycin Dosing in Chronic Kidney Disease by Deriving and Implementing a Web-Based Tool Using a Population Pharmacokinetics Analysis

Frontiers in Pharmacology · 10.3389/fphar.2019.00641

Structure

A one-compartment model, driven by weight and creatinine clearance.

Study population

Renal impairment patients — Asia and Singapore. Fitted to 80 patients and 170 concentration observations.

Covariate As reported
Age 71.7 ± 13 yr
Weight 57.8 ± 15.7 kg
BMI 22.6 ± 5.9 kg/m²
CrCl 33.8 ± 10.3 mL/min
SCr 150.6 ± 73.6 mg/dL

Reported as the source publication gives them — mean ± SD, or median with range or interquartile range.

Equations

The model's structural parameters as Chorus implements them.

CL=1.30+0.023CrClCL = 1.30 + 0.023 \cdot CrClV1=1.23WeightV_1 = 1.23 \cdot Weight
LaTeX source
CL = 1.30 + 0.023 \cdot CrCl
V_1 = 1.23 \cdot Weight

Implementation notes

Model developed specifically for CKD patients (CrCl <60 mL/min) not requiring renal replacement therapy.

Simulation settings

Models

selected

Dose candidates (mg)

Interval candidates (h)

Demographics

Physical characteristics.

kg
cm
yr