Background: Iododoxorubicin is a doxorubicin analogue with a promising
antineoplastic and toxicity profile in experimental systems. Patients
and Methods: Patients with measurable metastatic colorectal cancer wi
thout prior systemic treatment received iododoxorubicin 80 mg/m(2) int
ravenously, every 3 weeks until disease progression. Results: There ha
ve been no objective responses among the 18 evaluable patients. Toxici
ty was generally mild, the most pronounced side effect was myelosuppre
ssion. Conclusion: Iododoxorubicin is ineffective in metastatic colore
ctal cancer.