Group Sequential Design Class for Clinical Trials

S4 class object for creating and managing group sequential designs. It calculates the efficacy and futility boundaries at each look. It allows modifying the design and tracking the design update history.


Reference manual

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2.3 by Hui Zheng, 21 days ago

Browse source code at

Authors: David A Schoenfeld and Hui Zheng

Documentation:   PDF Manual  

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MIT + file LICENSE license

Depends on methods

See at CRAN