Package: gsearly
Type: Package
Title: Creates Group Sequential Trial Designs when Early Outcomes are
        Available
Version: 1.0.0
Authors@R: c(
    person(
      "Nick", "Parsons",
      email = "nick.parsons@warwick.ac.uk",
      role = c("aut", "cre"),
      comment = c(ORCID = "0000-0001-9975-888X")
    )
  )
Maintainer: Nick Parsons <nick.parsons@warwick.ac.uk>
Description: Methods to construct and power group sequential clinical trial 
  designs for outcomes at multiple times. Outcomes at earlier times provide
  information on the final (primary) outcome. A range of recruitment and 
  correlation models are available as are methods to simulate data in order to 
  explore design operating characteristics. For more details see Parsons (2024)
  <doi:10.1186/s12874-024-02174-w>.
Depends: R (>= 4.1.2)
Imports: graphics, grDevices, gsDesign (>= 3.2.1), methods, mvtnorm (>=
        1.2-4), nlme (>= 3.1-160), stats, utils
License: GPL (>= 2)
Encoding: UTF-8
LazyData: true
NeedsCompilation: no
Packaged: 2026-01-20 13:31:42 UTC; nickr
Author: Nick Parsons [aut, cre] (ORCID:
    <https://orcid.org/0000-0001-9975-888X>)
Repository: CRAN
Date/Publication: 2026-01-23 21:20:12 UTC
Built: R 4.6.0; ; 2026-04-25 13:43:29 UTC; unix
