Erlotinib Hydrochloride

This phase II trial gathers information on the feasibility, safety, and effect of giving methotrexate, erlotinib, and celecoxib in treating head and neck cancer that has come back after a period of improvement (recurrent) or that has spread from where it first started (primary site) to other places in the body (metastatic) among rural Midwest patients. Methotrexate is in a class of medications called antimetabolites. It is also a type of antifolate. Methotrexate stops cells from using folic acid to make deoxyribonucleic acid and may kill tumor cells. Erlotinib is in a class of medications called kinase inhibitors. It works by blocking the action of a protein called EGFR that signals tumor cells to multiply. This helps slow or stop the spread of tumor cells. Celecoxib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Giving the combination of methotrexate, erlotinib, and celecoxib may be feasible, safe, and effective in treating rural Midwest patients with recurrent/metastatic head and neck cancer.