Leukemia
Conditions
Keywords
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(15;17)(q22;q12), adult acute myeloid leukemia with t(16;16)(p13;q22), adult acute myeloid leukemia with t(8;21)(q22;q22), adult acute myeloid leukemia
Brief summary
RATIONALE: Studying samples of bone marrow and blood from patients with cancer in the laboratory may help doctors identify and learn more about biomarkers related to cancer. PURPOSE: This research trial studies biomarkers in samples from patients with acute myeloid leukemia treated with standard chemotherapy with or without gemtuzumab ozogamicin.
Detailed description
OBJECTIVES: * To determine whether measuring biomarkers in less-differentiated acute myeloid leukemia (AML) blasts significantly improves their predictive accuracy to predict clinical outcomes for patients receiving induction/consolidation chemotherapy with and without gemtuzumab ozogamicin. * To develop and validate novel predictive biomarker models for predicting clinical outcomes for AML patients receiving induction/consolidation chemotherapy with and without gemtuzumab ozogamicin. OUTLINE: DNA and RNA extracted from archived bone marrow and peripheral blood samples are analyzed for genomic mutations (CEBPA, FLT3, IDH1/2, KIT, NPM1, RUNX1, TP53, and WT1) and transcriptional biomarkers (BAALC, CCNA1, CD34, CEBPA, ERG, EVI1, FLT3, IL3RA, MCL1 \[two splice variants\], MN1, RUNX1, and WT1) by PCR and real-time PCR. Data are then analyzed by the Gene Scan software.
Interventions
Sponsors
Study design
Eligibility
Inclusion criteria
DISEASE CHARACTERISTICS: * Pretreatment bone marrow (BM) and peripheral blood (PB) samples obtained from Southwest Oncology Group ( SWOG) Leukemia Repository for adult patients enrolled on SWOG-9031, SWOG-9333, SWOG-S0106, and SWOG-S0112 * Samples restricted to those patients from these studies with at least 3 or more vials of remaining material in the SWOG Leukemia Repository and vials containing at least 1.5 x 10\^7 cells/vial * Samples from patients who received standard induction with cytarabine (ARA)/daunorubicin hydrochloride (DNR) with the addition of gemtuzumab ozogamicin (Mylotarg®) on one arm of S0106 PATIENT CHARACTERISTICS: * Not specified PRIOR CONCURRENT THERAPY: * See Disease Characteristics
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Biomarker assays in highly purified populations of AML myeloblasts are more predictive of clinical outcomes as compared to the same tests examining unsorted cells | immediate |
| Development of risk-assessment biomarker model for clinical outcomes | immediate |