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Are events happening as expected?
Events prediction is central to any large trial involving survival analysis. nQuery Predict provides tools to project future events based on both blinded and unblinded designs
nQuery Bayes is the powerful Bayesian module of the nQuery platform for clinical trial design.
盲估计样本量 如果与中间值相比,研究前方差被低估,则增加样本量
无盲样本量重估计 定义中间分析是否“可信”
分组序贯试验 为了有效性/无用性而提前停止
条件把握度 一种频率分析法,给出在研究结束时达到统计显著性的概率,给出在中期分析之前获得的数据
This then creates an interactive plot where you can get a deeper understanding of the effect of varying the sample size would have.
Powerful Plotting Features - Plot User Selected Rows
With the plot user selected rows feature, you can visually explore the effect of changing any of your assumptions over a range of values and seeing what effect it would have on any of the solvers in the table.
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