 A Phase I study of 40 patients showed that GM-CT-01 in different doses plus 5-FU was well tolerated in patients with different types of solid tumors who failed standard, approved treatments. The main reason for doing this Phase II study in advanced colorectal cancer patients is to verify the safety observations in the early Phase I study and further evaluate the efficacy of these drugs combination to stabilize tumors, preventing further growth and potentially shrink tumors. 