Sample size determination in group-sequential clinical trials with two co-primary endpoints.
Sample size determination in group-sequential clinical trials with two co-primary endpoints.
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DOI:
10.1002/sim.6154
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发表时间:
2014-07-30
影响因子:
2
通讯作者:
Sozu, Takashi
中科院分区:
文献类型:
--
作者:
Asakura, Koko;Hamasaki, Toshimitsu;Sugimoto, Tomoyuki;Hayashi, Kenichi;Evans, Scott R.;Sozu, Takashi
关键词:
We discuss sample size determination in group-sequential designs with two endpoints as co-primary. We derive the power and sample size within two decision-making frameworks. One is to claim the test intervention’s benefit relative to control when superiority is achieved for the two endpoints at the same interim timepoint of the trial. The other is when the superiority is achieved for the two endpoints at any interim timepoint, not necessarily simultaneously. We evaluate the behaviors of sample size and power with varying design elements and provide a real example to illustrate the proposed sample size methods. In addition, we discuss sample size recalculation based on observed data and evaluate the impact on the power and Type I error rate.
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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:
9.9
作者:
Doraiswamy, PM;Bieber, F;Gulanski, B
通讯作者:
Gulanski, B
影响因子:
1.9
作者:
OBRIEN, PC;FLEMING, TR
通讯作者:
FLEMING, TR
影响因子:
1.9
作者:
JENNISON, C;TURNBULL, BW
通讯作者:
TURNBULL, BW
影响因子:
1.1
作者:
Sozu, Takashi;Sugimoto, Tomoyuki;Hamasaki, Toshimitsu
通讯作者:
Hamasaki, Toshimitsu