<qa>  What type of therapy must patients with adenocarcinoma have prior treatment with7. Patients with adenocarcinoma arising from the esophagus, gastroesophageal junction, or stomach must also meet the following criteria: a. Must have received prior treatment with a platinumfluoropyrimidine-based therapy with or without an anthracycline in the metastatic setting; or, in the adjuvant setting if recurrence occurred within 6 months of completing systemic adjuvant treatment; b. Patients with HER2 positive tumors must have had prior treatment with a Her2 inhibitor e.g. trastuzumab or lapatinib; c. Patients who have received prior taxane therapy may be enrolled. 