tsdf calculates optimal Zhong's two-/three-stage Phase II designs, generates two-/three-stage Phase 1 dose finding decision table and allows user to run dose-finding simulations using customized decision table.

To install from CRAN:

install.packages("tsdf")

To install latest version from github :

install.packages("devtools")
devtools::install_github("wguo1990/tsdf")

[1] Bob Zhong, Single-arm phase IIA clinical trials with go/no-go decisions, 2012