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futility is an R package implementing estimation and
inferential procedures for assessing operational futility in randomized
treatment efficacy trials with time-to-event endpoints and fixed
follow-up. The procedures condition on data observed through an interim
timepoint. Inference can be restricted to a ‘per-protocol’ cohort.
Plotting functions are provided for graphical display of results.
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.