Surrogate (0.1-76)

Evaluation of Surrogate Endpoints in Clinical Trials.

http://cran.r-project.org/web/packages/Surrogate

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 7-th Framework Programme for research, technological development and demonstration under Grant Agreement no 602552.

Maintainer: Wim Van der Elst
Author(s): Wim Van der Elst, Paul Meyvisch, Ariel Alonso, Hannah M. Ensor, Christopher J. Weir & Geert Molenberghs

License: GPL (>= 2)

Uses: lattice, latticeExtra, lme4, logistf, MASS, mixtools, msm, nlme, OrdinalLogisticBiplot, rgl, rms, survival

Released over 3 years ago.