NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,790 terms related to cancer and medicine.
Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.
- listen (ZAL-trap)
A drug used with other drugs to treat colorectal cancer that has spread to other parts of the body and has not gotten better with chemotherapy. It is also being studied in the treatment of other types of cancer. Zaltrap blocks the action of a protein called vascular endothelial growth factor (VEGF) and may prevent the growth of new blood vessels that tumors need to grow. It is a type of antiangiogenesis agent. Also called vascular endothelial growth factor trap, VEGF Trap, and ziv-aflibercept.