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The IVI-RA Individual Patient Simulation Model

iviRA is an R package that runs the Innovation and Value Initiative's (IVI's) individual patient simulation model for rheumatoid arthritis (RA) (the IVI-RA model). The model simulates the costs, health outcomes, and risks associated with disease-modifying anti-rheumatic drugs (DMARDs) including conventional DMARDs (cDMARDs), biologic DMARDs (bDMARDs), and Janus kinase/signal transducers and activators of transcription (JAK/STAT) inhibitors for patients with moderate to severe rheumatoid arthritis (RA). The model is intended to help decision-makers assess the value of treatments for a population of patients with RA.

Installation

iviRA can be installed from GitHub using devtools:

# install.packages("devtools")
library(devtools)
devtools::install_github("InnovationValueInitiative/IVI-RA")

It can then be loaded into R:

library(iviRA)

Documentation

Web interfaces

You can also run the model online using our web interfaces.

  • IVI-RA Model Interface: full control over treatment sequences, the patient population, model parameters, model structures, and the time horizon.
  • IVI-RA Value Tool: a more streamlined experience for users with less experience in decision-analytic modeling and rheumatoid arthritis.

Collaborate

  • If you found a bug or would like to request a new feature, then submit an issue.
  • If you would like to contribute to the code base, then create a pull request. For more about contributing to the code, see here.