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Performance comparison of various maximum likelihood nonlinear mixed-effects estimation methods for dose-response models.

Abstract : Estimation methods for nonlinear mixed-effects modelling have considerably improved over the last decades. Nowadays, several algorithms implemented in different software are used. The present study aimed at comparing their performance for dose-response models. Eight scenarios were considered using a sigmoid E(max) model, with varying sigmoidicity and residual error models. One hundred simulated datasets for each scenario were generated. One hundred individuals with observations at four doses constituted the rich design and at two doses, the sparse design. Nine parametric approaches for maximum likelihood estimation were studied: first-order conditional estimation (FOCE) in NONMEM and R, LAPLACE in NONMEM and SAS, adaptive Gaussian quadrature (AGQ) in SAS, and stochastic approximation expectation maximization (SAEM) in NONMEM and MONOLIX (both SAEM approaches with default and modified settings). All approaches started first from initial estimates set to the true values and second, using altered values. Results were examined through relative root mean squared error (RRMSE) of the estimates. With true initial conditions, full completion rate was obtained with all approaches except FOCE in R. Runtimes were shortest with FOCE and LAPLACE and longest with AGQ. Under the rich design, all approaches performed well except FOCE in R. When starting from altered initial conditions, AGQ, and then FOCE in NONMEM, LAPLACE in SAS, and SAEM in NONMEM and MONOLIX with tuned settings, consistently displayed lower RRMSE than the other approaches. For standard dose-response models analyzed through mixed-effects models, differences were identified in the performance of estimation methods available in current software, giving material to modellers to identify suitable approaches based on an accuracy-versus-runtime trade-off.
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https://www.hal.inserm.fr/inserm-00709829
Contributor : Emmanuelle Comets <>
Submitted on : Tuesday, June 19, 2012 - 3:10:00 PM
Last modification on : Thursday, May 14, 2020 - 2:48:10 PM
Long-term archiving on: : Thursday, September 20, 2012 - 2:35:59 AM

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Elodie Plan, Alan Maloney, France Mentré, Mats Karlsson, Julie Bertrand. Performance comparison of various maximum likelihood nonlinear mixed-effects estimation methods for dose-response models.. European Journal of Clinical Pharmacology, Springer Verlag, 2012, 14 (3), pp.420-32. ⟨10.1208/s12248-012-9349-2⟩. ⟨inserm-00709829⟩

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