Comparison of neural network, Bayesian, and multiple stepwise regression-based limited sampling models to estimate area under the curve.

Abstract:

:This study compared limited sampling methods (LSM) of estimating area under the plasma concentration versus time curve (AUC) based on a Bayesian regularized neural network, the Bayesian approach, and multiple forward stepwise regression models from selected concentration-time points. Plasma concentration versus time data sets with a linear two-compartmental pharmacokinetic model were simulated. A limited sampling method based on the forward stepwise regression model was developed and validated. Plasma concentration-time points selected by the stepwise regression model were used for neural network and Bayesian evaluation. In addition, 55 plasma concentration-time profiles from two clinical studies were used to develop and compare the predicted AUC(last) for the three approaches. From simulated data sets, mean prediction errors for AUC(last) estimation were 0.00, -5.32, and -6.06 for the neural network, Bayesian approach, and forward stepwise regression LSM, respectively. Mean square errors were 581, 588, and 618, respectively. For clinical data set, model mean prediction errors were 0.00, 3.51, and 3.87, respectively. Model mean square errors were 30.6, 109, and 76, respectively. For both simulated and clinical data sets, the neural network approach to estimate AUC(last) from selected time points was numerically more precise and significantly less biased than the other two methods.

journal_name

Pharmacotherapy

journal_title

Pharmacotherapy

authors

Ng CM

doi

10.1592/phco.23.8.1044.32872

subject

Has Abstract

pub_date

2003-08-01 00:00:00

pages

1044-51

issue

8

eissn

0277-0008

issn

1875-9114

journal_volume

23

pub_type

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