Package: OptOTrials Type: Package Title: Optimal Two-Stage Designs for Ordered Categorical Outcomes Version: 1.1.0 Date: 2026-08-28 Authors@R: c( person(given = "Yeonhee", family = "Park", email = "yeonheepark@skku.edu", role = c("aut","cre")), person(given = "Yudi", family = "Wang", role = "aut"), person(given = "Zhanpeng", family = "Xu", role = "aut")) Description: Functions to design and simulate optimal two-stage randomized controlled trials (RCTs) with ordered categorical outcomes, using rank-based tests and interim decision rules for futility and superiority, following Park (2025) . The functions 'rule()', 'op()' and 'design_table()' provide a single entry point for constructing designs, evaluating their operating characteristics, and tabulating several designs at once. The separate functions provided for each combination of test statistic and stopping rule up to version 1.0.2 were deprecated in 1.0.3 and are removed here. Please see the package reference manual and the vignette for details. License: GPL-3 Encoding: UTF-8 Depends: R (>= 4.0) Imports: stats Suggests: knitr, rmarkdown, testthat (>= 3.0.0) VignetteBuilder: knitr RoxygenNote: 7.3.2 NeedsCompilation: no Author: Yeonhee Park [aut, cre], Yudi Wang [aut], Zhanpeng Xu [aut] Maintainer: Yeonhee Park Packaged: 2026-09-23 06:14:50 UTC; root Repository: https://cran.r-universe.dev Date/Publication: 2026-09-23 06:06:58 UTC RemoteUrl: https://github.com/cran/OptOTrials RemoteRef: HEAD RemoteSha: c4d69c91aa328c0fba8566772397581ae4701752