NCT01653613

Studying Genes in Samples From Younger Patients With Acute Lymphoblastic Leukemia

Genomic Analysis of Adolescent and Young Adult Acute Lymphoblastic Leukemia

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 400 (estimated)
• Sponsor: Eastern Cooperative Oncology Group · Network
• Sex: All
• Age: 16 Years – 39 Years
• Healthy volunteers: Not accepted

Summary

RATIONALE: Studying samples of blood and bone marrow from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. It may also help doctors find better ways to treat cancer. PURPOSE: This laboratory study is looking into genes in samples from younger patients with acute lymphoblastic leukemia (ALL).

Detailed description

OBJECTIVES: * To identify somatically acquired genetic copy number and sequence alterations at the time of diagnosis in adolescent and young adults (AYA) acute lymphoblastic leukemia (ALL) samples and to correlate them with clinical and laboratory characteristics and outcome. * To identify specific microarray multi-gene and multi-exon expression signatures at the time of diagnosis and to correlate them with clinical and laboratory characteristics and outcome. * To gain insights into the genetic events that contribute to the formation, development and relapse of AYA ALL by integrating the copy number and sequence alterations with the multi-gene signatures and by comparing these with data already generated in pediatric ALL. OUTLINE: Cryopreserved samples are analyzed for DNA copy number alterations and loss-of-heterozygosity, gene expression profiling, and mutation analysis by single nucleotide polymorphism (SNP) microarrays, Affymetrix Exon arrays, and whole genome amplification (WGA, Repli-G Qiagen). Confirmation studies are then done by fluorescence in situ hybridization (FISH), reverse transcriptase (RT)-polymerase chain reaction (PCR), and rapid amplification of cDNA ends (RACE).

Conditions

• Leukemia

Interventions

Type	Name	Description
GENETIC	DNA analysis
GENETIC	fluorescence in situ hybridization
GENETIC	gene expression analysis
GENETIC	microarray analysis
GENETIC	mutation analysis
GENETIC	polymorphism analysis
GENETIC	reverse transcriptase-polymerase chain reaction
OTHER	laboratory biomarker analysis

Timeline

• Start date: 2010-08-01
• Primary completion: 2013-02-01
• First posted: 2012-07-31
• Last updated: 2013-07-10