Study of Gemtuzumab Ozogamicin Therapy in DNA Samples From Patients With Acute Myeloid Leukemia Treated on COG-AAML0531

Leukemia

adult acute myeloid leukemia with 11q23 (MLL) abnormalities, adult acute myeloid leukemia with del(5q), adult acute myeloid leukemia with inv(16)(p13;q22), adult acute myeloid leukemia with t(16;16)(p13;q22), adult acute myeloid leukemia with t(8;21)(q22;q22), untreated adult acute myeloid leukemia, untreated childhood acute myeloid leukemia and other myeloid malignancies, adult acute basophilic leukemia, childhood acute basophilic leukemia, adult acute eosinophilic leukemia, childhood acute eosinophilic leukemia, adult acute myeloblastic leukemia without maturation (M1), childhood acute myeloblastic leukemia without maturation (M1), adult acute minimally differentiated myeloid leukemia (M0), childhood acute minimally differentiated myeloid leukemia (M0), adult acute myeloblastic leukemia with maturation (M2), childhood acute myeloblastic leukemia with maturation (M2), adult acute myelomonocytic leukemia (M4), childhood acute myelomonocytic leukemia (M4), adult acute monoblastic leukemia (M5a), adult acute monocytic leukemia (M5b), childhood acute monoblastic leukemia (M5a), childhood acute monocytic leukemia (M5b), adult erythroleukemia (M6a), adult pure erythroid leukemia (M6b), childhood acute erythroleukemia (M6), adult acute megakaryoblastic leukemia (M7), childhood acute megakaryocytic leukemia (M7), recurrent adult acute myeloid leukemia, recurrent childhood acute myeloid leukemia

RATIONALE: DNA analysis of blood and tissue samples may help doctors predict how well patients will respond to treatment. It may also help doctors learn more about how gemtuzumab ozogamicin works in the body. PURPOSE: This research study is looking at gemtuzumab ozogamicin in DNA samples from patients with acute myeloid leukemia treated on COG-AAML0531.

OBJECTIVES: * To genotype the genomic DNA from acute myeloid leukemia (AML) patients treated on COG-AAML0531 clinical trial for CD33 (and PgP and SOC3) single nucleotide polymorphisms (SNPs). OUTLINE: Archived DNA samples are analyzed for single nucleotide polymorphisms in CD33, PgP, and SOC3 genes by Sequenome platform. Results are then compared with patients clinical outcomes, including minimal-residual disease levels post induction I (chemotherapy and gemtuzumab ozogamicin), complete remission rates, refractory disease with various levels of bone marrow blasts, development of CNS/persistent disease, event-free survival, overall survival, and toxicity.