Sunitinib in Recurrent and Refractory Ovarian, Fallopian Tube and Peritoneal Carcinoma

This study used a two-stage design to evaluate efficacy of sunitinib based on overall response (OR) defined as complete response (CR) or partial response (PR). The null and alternative OR rate were 5% and 20%. If one or more patients enrolled in the stage one cohort (n=17 patients) achieved PR or better than accrual would proceed to stage two (n=18 patients). There was 42% probability of stopping the trial at stage one if the true OR rate was 5%. With 35 patients, this design had 85% power to detect the 15% difference in OR rates assuming 2-sided type I error rate of 0.05.