Bispecific Antibody in Finding Tumor Cells in Patients With Colorectal Cancer

DISEASE CHARACTERISTICS:

Histologically confirmed colorectal cancer

Radiological documentation of disease is preferred, but not required

PATIENT CHARACTERISTICS:

Karnofsky performance status 70-100%
Life expectancy ≥ 3 months
WBC ≥ 3,000/mm³
Neutrophil count ≥ 1,500/mm³
Platelet count ≥ 100,000/mm³
Serum creatinine normal
Bilirubin ≤ 1.5 times upper limit of normal (ULN)
AST/ALT < 2 times ULN
Not pregnant or nursing
Fertile patients must use effective contraception during and for 1 month after completion of study therapy
No medical conditions that might prevent full participation in protocol-required testing or follow-up
No institutionalized patients (e.g., in prisons or mental health institutions)

PRIOR CONCURRENT THERAPY:

No concurrent chemotherapy or treatments that would compromise the safety and efficacy of protocol assessments