A Study to Evaluate the Safety and Tolerability of MEDI-565 in Adults With Gastrointestinal Adenocarcinomas

MEDI-565 will be administered by IV infusion

20 subjects with selected gastrointestinal tumor type to receive MEDI-565 at the maximum tolerated dose or optimum biologic dose by IV infusion over 3 hours per day for 5 consecutive days every 28 days.

20 subjects with selected gastrointestinal tumor type to receive MEDI-565 at the maximum tolerated dose or optimum biologic dose by IV infusion over 3 hours per day for 5 consecutive days every 28 days.

20 Subjects with refractory Gastroesophageal cancer to receive MEDI-565 at the maximum tolerated dose or optimum biologic dose by IV infusion over 3 hours per day for 5 consecutive days every 28 days.