Learn R Programming

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).

Copy Link

Version

Install

install.packages('dfpk')

Monthly Downloads

40

Version

3.5.1

License

GPL (>= 3) | file LICENSE

Issues

Pull Requests

Stars

Forks

Maintainer

Artemis Toumazi

Last Published

November 9th, 2018

Functions in dfpk (3.5.1)

dtox

Dose finding method DTOX.
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.
stan_f

The data stan_f includes all the Stan models that dfpk package uses.
nextDose

Next dose determination of a phase I clinical trial.
nsim

Simulate a single or n prospective clinical trial(s) using the PK measure in the dose finding designs.
pkcrm

Dose finding method PKCRM.
pklogit

Dose finding method PKLOGIT.
AUC.estim

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

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

Dose finding method PKPOP.
pktox

Dose finding method PKTOX.
pk.estim

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

Dose finding method PKCOV.
dose-class

An S4 class to perform parameter estimation at each step during a dose-finding trial.
dosefinding-class

An S4 class to represent a dosefinding results.
sim.data

Generate and store PK and toxicity data.
show-methods

S4 Methods for Function show
invlogit

Inverse logistic functions.
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-finding results.