Package: Surrogate Type: Package Title: Evaluation of Surrogate Endpoints in Clinical Trials Version: 3.4.2.9000 Authors@R: c( person("Wim", "Van Der Elst", email = "wim.vanderelst@gmail.com", role = c("cre", "aut")), person("Florian", "Stijven", email = "florian.stijven@kuleuven.be", role = "aut"), person("Fenny", "Ong", role = "aut"), person("Dries", "De Witte", role = "aut"), person("Gokce", "Deliorman", role = "aut"), person("Paul", "Meyvisch", role = "aut"), person("Alvaro", "Poveda", role = "aut"), person("Ariel", "Alonso", role = "aut"), person("Hannah", "Ensor", role = "aut"), person("Christoper", "Weir", role = "aut"), person("Geert", "Molenberghs", role = "aut") ) Description: In a clinical trial, it frequently occurs that the most credible outcome to evaluate the effectiveness of a new therapy (the true endpoint) is difficult to measure. In such a situation, it can be an effective strategy to replace the true endpoint by a (bio)marker that is easier to measure and that allows for a prediction of the treatment effect on the true endpoint (a surrogate endpoint). The package 'Surrogate' allows for an evaluation of the appropriateness of a candidate surrogate endpoint based on the meta-analytic, information-theoretic, and causal-inference frameworks. Part of this software has been developed using funding provided from the European Union's Seventh Framework Programme for research, technological development and demonstration (Grant Agreement no 602552), the Special Research Fund (BOF) of Hasselt University (BOF-number: BOF2OCPO3), GlaxoSmithKline Biologicals, Baekeland Mandaat (HBC.2022.0145), and Johnson & Johnson Innovative Medicine. Imports: MASS, lattice, latticeExtra, survival, nlme, lme4, logistf, rms, ks, extraDistr, pbapply, flexsurv, rvinecopulib, maxLik, purrr, MBESS, tidyr, dplyr, tibble, lifecycle, fastmatrix, mratios, Matrix Depends: R (>= 3.5.0) License: GPL (>= 2) NeedsCompilation: no RoxygenNote: 7.3.3 Encoding: UTF-8 Suggests: copula, FNN, mgcv, testthat (>= 3.0.0), vdiffr, parallel, fitdistrplus, kdecopula, cubature, mvtnorm, withr, stringr, ggplot2, sn, pracma Config/testthat/edition: 3 Roxygen: list(markdown = TRUE) URL: https://github.com/florianstijven/Surrogate-development BugReports: https://github.com/florianstijven/Surrogate-development/issues Config/pak/sysreqs: cmake make libicu-dev libjpeg-dev libpng-dev libuv1-dev libx11-dev zlib1g-dev Repository: https://florianstijven.r-universe.dev Date/Publication: 2026-06-04 07:07:51 UTC RemoteUrl: https://github.com/florianstijven/surrogate-development RemoteRef: HEAD RemoteSha: ebb19d4e005c25a31e2e0b90693d2f179869df23 Packaged: 2026-07-04 09:06:37 UTC; root Author: Wim Van Der Elst [cre, aut], Florian Stijven [aut], Fenny Ong [aut], Dries De Witte [aut], Gokce Deliorman [aut], Paul Meyvisch [aut], Alvaro Poveda [aut], Ariel Alonso [aut], Hannah Ensor [aut], Christoper Weir [aut], Geert Molenberghs [aut] Maintainer: Wim Van Der Elst