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arXiv 1909.09467stat.AP
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非比例风险下至事件发生时间终点的替代分析方法:一项比较分析

Alternative Analysis Methods for Time to Event Endpoints under Non-proportional Hazards: A Comparative Analysis

Ray S. Lin, Ji Lin, Satrajit Roychoudhury, Keaven M. Anderson, Tianle Hu, Bo Huang, Larry F Leon, Jason JZ Liao, Rong Liu, Xiaodong Luo, Pralay Mukhopadhyay, Ru… 展开作者

Ray S. Lin, Ji Lin, Satrajit Roychoudhury, Keaven M. Anderson, Tianle Hu, Bo Huang, Larry F Leon, Jason JZ Liao, Rong Liu, Xiaodong Luo, Pralay Mukhopadhyay, Rui Qin, Kay Tatsuoka, Xuejing Wang, Yang Wang, Jian Zhu, Tai-Tsang Chen, Renee Iacona, Cross-Pharma Non-proportional Hazards Working Group

摘要:

对数秩检验在比例风险(PH)下最有效。在实践中,在临床试验中经常观察到非PH模式,例如在免疫肿瘤学中;因此,需要替代方法来恢复统计检验的效率。评价了三类检验方法,包括加权对数秩检验、基于Kaplan-Meier曲线的检验(包括加权Kaplan-Meier和限制平均生存时间,RMST)和组合检验(包括Breslow检验、Lee's combo检验和MaxCombo检验)。模拟了代表PH和各种非PH模式的九种场景。比较了每种方法的把握度、第一类错误和效应估计值。一般而言,所有测试都能很好地控制第一类错误。在所有场景中,没有一个最强大的测试。在没有关于PH或非PH模式的先验知识的情况下,MaxCombo测试在模式之间相对稳健。由于处理效应在非PH下随时间变化,因此处理效应的总体曲线可能无法基于单一测量全面表示。因此,处理效应的多个指标应预先指定为敏感性分析,以评价数据的总体性。

英文摘要:

The log-rank test is most powerful under proportional hazards (PH). In practice, non-PH patterns are often observed in clinical trials, such as in immuno-oncology; therefore, alternative methods are needed to restore the efficiency of statistical testing. Three categories of testing methods were evaluated, including weighted log-rank tests, Kaplan-Meier curve-based tests (including weighted Kaplan-Meier and Restricted Mean Survival Time, RMST), and combination tests (including Breslow test, Lee's combo test, and MaxCombo test). Nine scenarios representing the PH and various non-PH patterns were simulated. The power, type I error, and effect estimates of each method were compared. In general, all tests control type I error well. There is not a single most powerful test across all scenarios. In the absence of prior knowledge regarding the PH or non-PH patterns, the MaxCombo test is relatively robust across patterns. Since the treatment effect changes overtime under non-PH, the overall profile of the treatment effect may not be represented comprehensively based on a single measure. Thus, multiple measures of the treatment effect should be pre-specified as sensitivity analyses to evaluate the totality of the data.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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