Once the CFPAC-1 tumors had grown to approximately 100 mm3 in size, tumor-bearing mice were injected three times with saline, 250 μg human IgG1, 100 μg NEO-201, or 250 μg NEO-201 followed by three injections of 1.0 × 107 IL-2-activated (200 U/mL) human PBMCs to function as ADCC-mediating effector cells. The gene discussed is IL2; the disease is neoplasm.