Dalotuzumab is a humanized monoclonal antibody (mAb) that targets the Insulin-like Growth Factor Receptor (IGF-1R). Dalotuzumab may act through:
* Inhibition of IGF-1-mediated cell signaling to cause reductions in tumor growth and spread
* Antibody dependent cell-mediated cytotoxicity
In preclinical studies, dalotuzumab improved the activity of an anti-Epidermal Growth Factor Receptor (EGFR) mAb and the activity of Erlotinib, a small molecule inhibitor of EGFR
Trial Duration of Treatment: Participants will continue on the study for as long as their disease is not progressing and they do not have unmanageable side effects from the treatment.