Woolson, Bean, and Rojas (1986, Biometrics 42, 927-932) present a simple approximation of sample size for Cochran's (1954, Biometrics 10, 417-451) test for detecting association between exposure and ...

For clinical trials in general, not just phase I trials, Bayesian sample size determination approaches are based on various performance metrics, including, for example, the average posterior variance ...