Cargando…
Stopping clinical trials early for futility: retrospective analysis of several randomised clinical studies
BACKGROUND: Many clinical trials show no overall benefit. We examined futility analyses applied to trials with different effect sizes. METHODS: Ten randomised cancer trials were retrospectively analysed; target sample size reached in all. The hazard ratio indicated no overall benefit (n=5), or moder...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2012
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3464764/ https://www.ncbi.nlm.nih.gov/pubmed/22878376 http://dx.doi.org/10.1038/bjc.2012.344 |