NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,804 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.

MEPACT
A drug being studied in the treatment of young adults with bone cancer that has gotten worse or come back. MEPACT activates certain types of white blood cells and helps the immune system kill cancer cells. It is a type of immunostimulant. Also called L-MTP-PE, mifamurtide, and muramyl tripeptide phosphatidylethanolamine.