Abstract
This phase III trial studies combination chemotherapy with or without lestaurtinib with to
see how well they work in treating younger patients with newly diagnosed acute lymphoblastic
leukemia. Drugs used in chemotherapy work in different ways to stop the growth of stop cancer
cells, either by killing the cells, by stopping them from dividing, or by stopping them from
spreading. Lestaurtinib may stop the growth of cancer cells by blocking some of the enzymes
needed for cell growth. It is not yet known whether combination chemotherapy is more
effective with or without lestaurtinib in treating acute lymphoblastic leukemia.

