Testing for efficacy in adaptive clinical trials with enrichment.

Testing for efficacy in adaptive clinical trials with enrichment.
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DOI:
10.1002/sim.6127
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发表时间:
2014-07-20
影响因子:
2
通讯作者:
He, Ying
He, Ying
中科院分区:
医学3区
文献类型:
--
作者:
Wu, Samuel S.;Tu, Yi-Hsuan;He, Ying

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Adaptive design of clinical trials has attracted considerable interest because of its potential of reducing costs and saving time in the clinical development process. In this paper, we consider the problem of assessing the effectiveness of a test treatment over a control by a two-arm randomized clinical trial in a potentially heterogenous patient population. In particular, we study enrichment designs that use accumulating data from a clinical trial to adaptively determine patient subpopulation in which the treatment effect is eventually assessed. A hypothesis testing procedure and a lower confidence limit are presented for the treatment effect in the selected patient subgroups. The performances of the new methods are compared with existing approaches through a simulation study.
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