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Sequential Monitoring Of Adaptive Randomized Clinical Trials With Sample Size Re-Estimation, Jun Yu

Dissertations & Theses (Open Access)

Clinical trials are complicated and involve human beings. Therefore, lots of ethical and efficient objectives are expected to be achieved. These objectives include maximizing the power of detecting the treatment effects, assigning more patients to the better treatments, saving the cost and time, and controlling the type I error rate. A variety of adaptive designs have been proposed to achieve different aims, among which sequential monitoring and sample size re-estimation are very popular in real clinical trials. In addition, adaptive randomization designs sequentially update the allocation probability aiming to target different allocation proportions and achieve different aims. Hu and Rosenberger …