Based on extensive preclinical studies, the investigators decided to perform a first-in-human clinical trial in patients with EGFR-overexpressing solid tumors who have already received all available standard treatments. The therapeutic compound tested in the trial is C225-ILs-dox, a doxorubicin-loaded anti-EGFR-immunoliposome. Doxorubicin is one of the most active agents in many human tumors, and a high percentage of these malignancies do express EGFR. Therefore, the targeting of doxorubicin to EGFR-expressing tumors via the EGFR-specific antibody C225 should enhance the specificity and efficacy of chemotherapy, while the encapsulation of the cytotoxic drug within pegylated liposomes should at the same time decrease its toxicity.