TITEgBOIN - Time-to-Event Dose-Finding Design for Multiple Toxicity Grades
In some phase I trials, the design goal is to find the
dose associated with a certain target toxicity rate or the dose
with a certain weighted sum of rates of various toxicity
grades. 'TITEgBOIN' provides the set up and calculations needed
to run a dose-finding trial using bayesian optimal interval
(BOIN) (Yuan et al. (2016)
<doi:10.1158/1078-0432.CCR-16-0592>), generalized bayesian
optimal interval (gBOIN) (Mu et al. (2019)
<doi:10.1111/rssc.12263>), time-to-event bayesian optimal
interval (TITEBOIN) (Lin et al. (2020)
<doi:10.1093/biostatistics/kxz007>) and time-to-event
generalized bayesian optimal interval (TITEgBOIN) (Takeda et
al. (2022) <doi:10.1002/pst.2182>) designs. 'TITEgBOIN' can
conduct tasks: run simulations and get operating
characteristics; determine the dose for the next cohort; select
maximum tolerated dose (MTD). These functions allow
customization of design characteristics to vary sample size,
cohort sizes, target dose limiting toxicity (DLT) rates or
target normalized equivalent toxicity score (ETS) rates to
account for discrete toxicity score, and incorporate safety
and/or stopping rules.