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dfpk

The dfpk R package provides an interface to fit Bayesian generalized (non-)linear mixed models using Stan, which is a C++ package for obtaining Bayesian inference using the No-U-turn sampler (see http://mc-stan.org/).

Description

dfpk package includes methods involving PK measures in the dose allocation process during a Phase I clinical trials. These methods enter PK in the dose finding designs in different ways, including covariates models, dependent variable or hierarchical models. This package provides functions to generate scenarios, and to run simulations which their objective is to determine the maximum tolerated dose (MTD).

Installation

Establish Version

A latest version of the package dfpk is available on CRAN and can be loaded via

install.packages("dfpk")
library(dfpk) 

Development Version

To install the dfpk package from GitHub, first make sure that you can install the rstan package and C++ toolchain by following these instructions. The program Rtools (available on https://cran.r-project.org/bin/windows/Rtools/) comes with a C++ compiler for Windows. On OS-X, you should install Xcode. Once rstan is successfully installed, you can install dfpk from GitHub using the devtools package by executing the following in R:

if (!require(devtools)){
  install.packages("devtools") 
  library(devtools) 
}

install_github("artemis-toumazi/dfpk")

If installation fails, please let us know by filing an issue.

Details on formula syntax, families and link functions, as well as prior distributions can be found on the help page of the dfpk function:

help(dfpk) 

FAQ

Can I avoid compiling models?

Unfortunately, fitting your model with dfpk, there is currently no way to avoid the compilation.

What is the best way to ask a question or propose a new feature?

You can either open an issue on github or write me an email to (artemis.toumazi@gmail.com).

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Version

Install

install.packages('dfpk')

Monthly Downloads

38

Version

3.3.0

License

GPL (>= 3) | file LICENSE

Issues

Pull Requests

Stars

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Maintainer

Artemis Toumazi

Last Published

June 29th, 2017

Functions in dfpk (3.3.0)

dose-class

An S4 class to present the next recommended dose level in an ongoing trial.
dosefinding-class

An S4 class to represent a dosefinding results.
nextDose

Next dose determination of a phase I clinical trial.
nsim

Simulate one or more Phase I clinical trial(s) using the PK measure in the dose finding design.
pk.estim

The pharmacokinetic's (PK) measure of exposure.
pkcov

Dose finding method PKCOV.
dtox

Dose finding method DTOX.
invlogit

Inverse logistic functions.
AUC.estim

Estimation of the area under the curve, AUC.
dfpk-package

Bayesian Dose-Finding Designs using Pharmacokinetics(PK) for Phase I Clinical Trials.
show-methods

S4 Methods for Function show
sim.data

Generate new PK and toxicity data.
stan_f

The data stan_f includes all the Stan models that dfpk package uses.
plot,scen,missing-method

The graphical representation of the drug's concentration in the plasma at time t after the drug administration.
scen-class

An S4 class to represent a simulated scenarios.
pkpop

Dose finding method PKPOP.
pktox

Dose finding method PKTOX.
pkcrm

Dose finding method PKCRM.
pklogit

Dose finding method PKLOGIT.
plot,dose,missing-method

The graphical representation of dose escalation for each patient in the trial.
plot,dosefinding,missing-method

The graphical representation of dose escalation for each patient in the trial.