Study Status: Completed
Recruit Status: Completed
Study Type: Observational
Official Title: Immunoreactivity to Cetuximab in Cancer Patients
Brief Summary:
RATIONALE: Studying samples of blood in the laboratory may help doctors predict which patients will develop hypersensitivity to cetuximab.
PURPOSE: This research study is looking at hypersensitivity to cetuximab in patients with head and neck cancer or advanced colorectal cancer previously treated with cetuximab.