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Group sequential tests under fractional Brownian motion in monitoring clinical trials

机译:分数布朗运动下的团体顺序测试在监测临床试验中

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摘要

Group sequential tests have been effective tools in monitoring long term clinical trials. There have been several popular discrete sequential boundaries proposed for modeling interim analysis of clinical trials under the assumption of Brownian motion for the stochastic processes generated from test statistics. In this paper, we study the five sequential boundaries in Lan and DeMets (Biometrika 70:659-663, 1983) under the fractional Brownian motion. The fractional Brownian includes the classic Brownian motion as a special case. An example from a real data set is used to illustrate the applications of the boundaries.
机译:团体顺序测试已成为监测长期临床试验的有效工具。已经提出了几种流行的离散顺序边界,这些边界用于在试验运动产生的随机过程的布朗运动假设下对临床试验的中期分析进行建模。在本文中,我们研究了分数布朗运动下Lan和DeMets的五个连续边界(Biometrika 70:659-663,1983)。分数布朗运动包括特殊情况下的经典布朗运动。实际数据集中的一个示例用于说明边界的应用。

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