Sizing clinical trials when comparing bivariate time-to-event outcomes.
Sizing clinical trials when comparing bivariate time-to-event outcomes.
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DOI:
10.1002/sim.7225
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发表时间:
2017-04-30
影响因子:
2
通讯作者:
Sozu T
中科院分区:
文献类型:
--
作者:
Sugimoto T;Hamasaki T;Evans SR;Sozu T
Clinical trials with multiple primary time-to-event outcomes are common. Use of multiple endpoints creates challenges in the evaluation of power and the calculation of sample size during trial design particularly for time-to-event outcomes. We present methods for calculating the power and sample size for randomized superiority clinical trials with two correlated time-to-event outcomes. We do this for independent and dependent censoring for three censoring scenarios: (i) the two events are non-fatal; (ii) when one event is fatal (semi-competing risk); and (iii) when both are fatal (competing risk). We derive the bivariate log-rank test in all three censoring scenarios and investigate the behavior of power and the required sample sizes. Separate evaluations are conducted for two inferential goals, evaluation of whether the test intervention is superior to the control on (1) all of the endpoints (multiple co-primary) or (2) at least one endpoint (multiple primary).
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影响因子:
1.5
作者:
Hamasaki, Toshimitsu;Sugimoto, Tomoyuki;Evans, Scott;Sozu, Takashi
通讯作者:
Sozu, Takashi
影响因子:
2.1
作者:
Wang, Rui;Lagakos, Stephen W.;Gray, Robert J.
通讯作者:
Gray, Robert J.
影响因子:
2.7
作者:
CLAYTON, DG
通讯作者:
CLAYTON, DG
影响因子:
2.7
作者:
Shih, JH
通讯作者:
Shih, JH
影响因子:
2.7
作者:
Fine, JP;Jiang, H;Chappell, R
通讯作者:
Chappell, R