B. The antitumor activities of E7046 (150 mg/kg) and TP-16 (37.5, 75, and150 mg/kg) in CT26 tumor-bearing BALB/c mice (n = 11 per group). Tumor growth curves in the CT26 model (left panel). Bar graphs show the individual changes in tumor growth relative to after and before drug administration (right panel). Tumor volumes reached 100-200 mm3 on day 7. 