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PFIM 7.0 – What’s New

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This version fully replaces the version of PFIM 6.1

• Functional Programming Architecture: Version 7.0 is entirely rebuilt using functional programming principles for improved performance and maintainability.

• Breaking Changes: This version introduces significant user script changes that require script updates from previous versions

• Enhanced Features: New modeling capabilities and improved Bayesian FIM estimation

• Flexible PK/PD Modeling: Support for multiple PK responses with PD components (ode pk pk pk .. pd)

• Expanded User Defined Model: Additional models available (see BJCP test in https://github.com/packagePFIM)

• Bayesian FIM Estimation: Enhanced estimation for single sampling time scenarios

• Multi-dose Bolus Models: New ODE-based multi-dose bolus modeling capabilities

• PFIM 6.1:

{r, echo = TRUE, comment='',eval=FALSE} modelEquations` = `list( outcomes = list( "RespPK", "RespPD" ), equations = list( "RespPK" = "dose_RespPK/V * ka/( ka - Cl/V ) * ( exp( -Cl/V *t ) - exp(-ka * t ) )", "RespPD" = "S0 * ( 1 - Imax * RespPK/( RespPK + C50 ) )" ) ) - PFIM 7.0: {r, echo = TRUE, comment='',eval=FALSE} modelEquations = list( "RespPK" = "dose_RespPK/V * ka/( ka - Cl/V )*( exp( -Cl/V * t ) - exp( -ka * t ) )", "RespPD" = "S0 * ( 1 - Imax * RespPK/( RespPK + C50 ) )" )

PFIM 7.0 introduces modelFromLibrary for predefined models:

{r, echo = TRUE, comment='',eval=FALSE} modelFromLibrary = list( "PKModel" = "MichaelisMenten2InfusionSingleDose_VmKmk12k21V1V2", "PDModel" = "TurnoverRinEmax_RinEmaxCC50koutE" )

and the evaluation writes:

{r, echo = TRUE, comment='',eval=FALSE} evaluation = Evaluation( modelFromLibrary = modelFromLibrary, ... )

without the slots modelEquations.

The outcome od an error model is modified.

• PFIM 6.1: outcomes
• PFIM 7.0: outputs

The specification of the dose in the initial conditions for an ode model is modified.

• PFIM 6.1: initialCondition = list( "C1" = "dose" )
• PFIM 7.0: initialCondition = list( "C1" = "dose_C1" )

The constraints for the administration for the design optimization is changed.

• PFIM 6.1 (vector): doses = c( 0.2, 0.64, 2, 6.24, 11.24, 20 )
• PFIM 7.0 (list): doses = list( 0.2, 0.64, 2, 6.24, 11.24, 20 )

The evaluation outcomes are changed.

• PFIM 6.1: outcomes = list( "RespPK" )
• PFIM 7.0: outputs = list( "RespPK" )

The specification of the Fim type is changed.

• PFIM 6.1: fim = " ... "\
• PFIM 7.0 fimType = " ... "

The plot method for the sensitivity indices is changed.

• PFIM 6.1: plotSensitivityIndice = plotSensitivityIndice( ..., ... )
• PFIM 7.0: plotSensitivityIndices = plotSensitivityIndices( ..., ... )
• Correlation matrix removed from report in this version
• SE and RSE extraction simplified with direct access without [[designName]] indexing

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