Combination Chemotherapy With or Without Donor Stem Cell Transplant in Treating Patients With Acute Lymphoblastic Leukemia

Inclusion Criteria: * INDUCTION/CONSOLIDATION REGISTRATION: * Patients must have a morphologic diagnosis of acute lymphoblastic leukemia (ALL), with evidence of ALL involvement in bone marrow and/or blood; patients with only extramedullary disease in the absence of bone marrow or blood involvement are not eligible; patients with M0 acute myeloid leukemia (AML) or mixed lineage leukemia are not eligible for this study; patients with L3 (Burkitts) are also not eligible * For ALL in marrow or peripheral blood, immunophenotyping of the blood or marrow lymphoblasts must be performed to determine lineage (B cell, T-cell, or mixed B/T cell); NOTE: appropriate marker studies including cluster of differentiation (CD)19 (B cell), CD10, CD5, and CD7 (T cell) must be performed; co-expression of myeloid antigens (CD13 and CD33) will not exclude patients; if possible, the lineage specific markers cytoplasmic CD22 or CD79a (B cells), cytoplasmic CD3 (T cells) and cytoplasmic myeloperoxidase (MPO) (myeloid cells) must be determined * Patients may have received no more than one course of remission induction therapy for ALL; patients who have received any post-remission therapy for ALL or who have relapsed from complete remission are not eligible; (patients with previously untreated ALL can be eligible, and patients who have received one course of remission induction therapy for ALL can be eligible, regardless of their response to therapy); patients may have received no more than 14 days o…