A Comparison of Approaches for Unplanned Sample Size Changes in Phase II Clinical Trials

Oncology phase II clinical trials are used to evaluate the initial effect of a new regimen to determine if there warrants further study in a phase III clinical trial. Two-stage designs with an early futility stop are commonly used in these phase II trials. It is common for attained sample sizes in t...

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Bibliographic Details
Main Author: Olson, Molly Ann
Other Authors: Tatsuki Koyama
Format: Others
Language:en
Published: VANDERBILT 2017
Subjects:
Online Access:http://etd.library.vanderbilt.edu/available/etd-06132017-150729/