Power and Sample Size for (Bio)Equivalence Studies R package PowerTOST version 1.5-7 CRAN Task View: ClinicalTrials (https://CRAN.R-project.org/view=ClinicalTrials) Contains functions to calculate power and sample size for various study designs used in bioequivalence studies. Use known.designs() to see the designs supported. Power and sample size can be obtained based on different methods, amongst them prominently the TOST procedure (two one-sided t-tests). See README and NEWS for further information. Software Imports: mvtnorm, stats, utils, graphics, grDevices, cubature (>= 1.3-6) Suggests: crossdes, knitr, rmarkdown, tufte, emmeans Detlew Labes <DetlewLabes@gmx.de> Comprehensive R Archive Network (CRAN) Detlew Labes [aut, cre] (ORCID: <https://orcid.org/0000-0003-2169-426X>), Helmut Schütz [aut] (ORCID: <https://orcid.org/0000-0002-1167-7880>), Benjamin Lang [aut] GPL (>= 2) 2025-09-23 application/tgz https://CRAN.R-project.org/package=PowerTOST doi:10.32614/CRAN.package.PowerTOST