OBJECTIVES:
* Determine the toxicity, maximum tolerated dose, and pharmacokinetics of monoclonal antibody hu3S193 in patients with advanced colorectal carcinoma.
* Determine the immune response in these patients treated with this regimen.
OUTLINE: This is a dose escalation study.
Patients receive monoclonal antibody hu3S193 (mAb hu3S193) IV over 30 minutes to 4 hours weekly for 8 weeks followed by 2 weeks of rest. Patients with stable or responding disease at week 10 receive maintenance mAb hu3S193 weekly. Courses repeat every 8 weeks in the absence of disease progression or unacceptable toxicity.
Cohorts of 3-6 patients receive escalating doses of mAb hu3S193 until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which 3 of 6 patients experience dose limiting toxicities.
