NCI Dictionary of Cancer Terms

The NCI Dictionary of Cancer Terms features 8,334 terms related to cancer and medicine.

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ZD1839
A drug used to treat non-small cell lung cancer that has spread to other parts of the body and has not already been treated with other anticancer therapy. It is used in patients whose cancer has certain mutations (changes) in a gene called epidermal growth factor receptor (EGFR). It is also being studied in the treatment of other types of cancer. ZD1839 blocks certain proteins made by the mutated EGFR gene, which may help keep cancer cells from growing. It may also prevent the growth of new blood vessels that tumors need to grow. ZD1839 is a type of tyrosine kinase inhibitor and a type of antiangiogenesis agent. Also called gefitinib and Iressa.