<qa>  What is the name of the drug that is approved by the FDA for?The purpose of this Phase I study is to determine the safety and effectiveness of two chemotherapies drugs, Cetuximab and Pemetrexed Alimta, when given in combination with radiation therapy. Currently Pemetrexed is approved by the Food and Drug Administration FDA for two other types of cancer, mesothelioma and lung cancer, but it is considered investigational and is not approved by the FDA for head and neck cancer. Cetuximab is approved by the FDA for the treatment of colorectal cancer; however, it is not yet approved for head and neck cancer. 