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简单介绍成组序贯设计在临床试验中的应用

Chinese Journal of Clinical Pharmacology and Therapeutics(2006)

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Abstract
在临床试验中,常常因为伦理或经济的原因需要进行期中分析,成组序贯设计是ICH-GCP推荐的期中分析方法。本文对该方法的原理及其在临床试验中的几个问题:期中分析的次数、检验界值、样本估算和终点指标的影响等进行了简单介绍。
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Key words
group sequential design,interim analysis,repeated measurement,clinical trials
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