muramyl tripeptide phosphatidylethanolamine
(MYOOR-uh-mil try-PEP-tide FOS-fuh-TY-dul-EH-thuh-NOH-luh-meen)
A drug being studied in the treatment of young adults with bone cancer that has gotten worse or come back. Muramyl tripeptide phosphatidylethanolamine 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, MEPACT, and mifamurtide.