Bayesian design of noninferiority trials for medical devices using historical data

Ming-Hui Chen, Joseph G Ibrahim, Peter Lam, Alan Yu, Yuanye Zhang
Biometrics 2011, 67 (3): 1163-70
We develop a new Bayesian approach of sample size determination (SSD) for the design of noninferiority clinical trials. We extend the fitting and sampling priors of Wang and Gelfand (2002, Statistical Science 17, 193-208) to Bayesian SSD with a focus on controlling the type I error and power. Historical data are incorporated via a hierarchical modeling approach as well as the power prior approach of Ibrahim and Chen (2000, Statistical Science 15, 46-60). Various properties of the proposed Bayesian SSD methodology are examined and a simulation-based computational algorithm is developed. The proposed methodology is applied to the design of a noninferiority medical device clinical trial with historical data from previous trials.

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