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Direct PD Model Simultaneous PK/PD Parameter fit

[Generated automatically as a Tutorial summary]

Model Description

Name:direct_pd_simul
Title:Direct PD Model Simultaneous PK/PD Parameter fit
Author:PoPy for PK/PD
Abstract:
A simple direct PD Model, based on the amount of drug in the body. That simultaneously fits PK and PD parameters.
The amount in the central compartment is determined by K, which has been previously estimated for each individual.
The amount in the central compartment influences the rate of removal of a biomarker (KOUT).
Keywords:pd; one compartment model; direct
Input Script:direct_pd_simul_tut.pyml
Diagram:

Comparison

True objective value

-203.7595

Final fitted objective value

386.6144

Compare Main f[X]

Name Initial Fitted True Abs. Error Prop. Error
f[CL] 5 2… 2 1.94e-03 0.10%
f[V] 15 48.1 50 1.91e+00 3.81%
f[BASE] 500 799 800 7.71e-01 0.10%
f[KOUT] 0.1 0.0288 0.03 1.23e-03 4.10%

Compare Noise f[X]

Name Initial Fitted True Abs. Error Prop. Error
f[PK_ANOISE] 5 0.51 0.5 1.02e-02 2.05%
f[PD_ANOISE] 5 8.23 0.3 7.93e+00 2641.77%

Compare Variance f[X]

No Variance f[X] values to compare.

Outputs

Fitted f[X] values (after fitting)

f[CL] = 2.0019
f[V] = 48.0926
f[BASE] = 799.2292
f[KOUT] = 0.0288
f[PK_ANOISE] = 0.5102
f[PD_ANOISE] = 8.2253

Generated data .csv file

Synthetic Data:synthetic_data.csv

Inputs

True f[X] values (for simulation)

f[CL] = 2.0000
f[V] = 50.0000
f[BASE] = 800.0000
f[KOUT] = 0.0300
f[PK_ANOISE] = 0.5000
f[PD_ANOISE] = 0.3000

Starting f[X] values (before fitting)

f[CL] = 5.0000
f[V] = 15.0000
f[BASE] = 500.0000
f[KOUT] = 0.1000
f[PK_ANOISE] = 5.0000
f[PD_ANOISE] = 5.0000
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