Stop the trial if\(\ Pr\) ( \(p\) > \(\phi_T\) | \(data\) ) > \(C_T\), where \(C_T\) is
Stop the trial if\(\ Pr\) ( \(p\) < \(\phi_E\) | \(data\) ) > \(C_E\), where \(C_E\) is
Stop the trial if\(\ Pr\) ( \(p\) > \(\phi\) | \(data\) ) > \(C\), where \(C\) is
Evaluation time period for the endpoint