Bioequivalence Trials with the Incomplete 3 × 3 Crossover Design

In bioequivalence trials, one often considers two or more generic products with the original one. The 3 × 3 crossover design can be adopted to evaluate the two generic candidates with a brand name drug, rather than conducting two separate 2 × 2 crossover trials. Dropouts, however, are more likely to occur due to various administrative reasons when we consider a higher order crossover design. A modified method, which was originally given by Chow and Shao (1997), is extended to compare two generic products with a reference in the incomplete 3 × 3 crossover design. A simulation study and discussion are also presented. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)