Adaptive Crossover Design for Normal Responses

Uttam Bandyopadhyay and Shirsendu Mukherjee

Communications in Statistics - Theory and Methods, 2015, vol. 44, issue 7, 1466-1482

Abstract: In a response-adaptive design, we review and update the trial on the basis of outcomes in order to achive a specific goal. In clinical trials our goal is to allocate a larger number of patients to the better treatment. In the present paper, we use a response adaptive design in a two-treatment two-period crossover trial where the treatment responses are continuous. We provide probability measures to choose between the possible treatment combinations AA, AB, BA, or BB. The goal is to use the better treatment combination a larger number of times. We calculate the allocation proportions to the possible treatment combinations and their standard errors. We also derive some asymptotic results and provide solutions on related inferential problems. The proposed procedure is compared with a possible competitor. Finally, we use a data set to illustrate the applicability of our proposed design.

Date: 2015
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DOI: 10.1080/03610926.2013.763509

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