Definition

A drug used to treat adults and children aged 1 year and older with T-cell acute lymphoblastic leukemia and T-cell lymphoblastic lymphoma. It is used in patients whose cancer has not gotten better or has recurred (come back) after treatment with other anticancer drugs. 506U78 stops cells from making DNA and may kill cancer cells. It is a type of antimetabolite. Also called Arranon and nelarabine.