Performance of Adaptive Designs for Single-Armed Phase II Oncology Trials

Performance of Adaptive Designs for Single-Armed Phase II Oncology Trials
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单臂 II 期肿瘤学试验的自适应设计的性能

DOI:
10.1080/10543406.2014.920863
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发表时间:
2015
影响因子:
1.1
通讯作者:
Englert
Englert
中科院分区:
医学4区
文献类型:
--
作者:
Kieser;Englert

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当计划单臂临床试验与双终点时,样本量的确定,使期望功率达到单一值的目标率。然而,对于真正的治疗效果通常存在一些不确定性。因此,更现实的做法是为可能的真实速率指定一个区间,以适应这种不确定性。在这种情况下,我们全面检查了各种二期肿瘤学设计和样本量重新计算策略的整体性能。我们的研究方法和结果可用于确定最适合手头特定临床试验情况的方法。在直肠癌的临床试验中说明了其应用。
When planning a single-armed clinical trial with binary endpoint, the sample size is determined such that the desired power is achieved for a single value of the target rate. However, there is usually some uncertainty with respect to the true treatment effect. It is therefore more realistic to specify an interval for the possible true rate to accommodate this uncertainty. For this situation, we examine comprehensively the overall performance of various Phase II oncology designs and sample size recalculation strategies. The methods and results of our investigations can be used to identify the most appropriate approach for a specific clinical trial situation at hand. Application is illustrated with a clinical trial in rectal cancer.
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