Laboratory Study of Lymphoblasts in Young Patients With High-Risk Acute Lymphoblastic Leukemia
Childhood Cancer Therapeutically Applicable Research to Generate Effective Treatments (TARGET) Initiative High-Risk ALL Pilot Project: Application of Array-Based Methods and Gene Re-Sequencing to Identify Candidate Molecular Targets for High-Risk Pediatric Acute Lymphoblastic Leukemia
RATIONALE: Collecting and storing samples of bone marrow and blood from patients with cancer to study in the laboratory may help doctors learn more about changes that may occur in DNA and identify biomarkers related to cancer.
PURPOSE: This laboratory study is looking at lymphoblasts in young patients with high-risk acute lymphoblastic leukemia.
調査の概要
詳細な説明
OBJECTIVES:
- Identify regions of copy number abnormalities (CNA) and uniparental disomy in leukemic lymphoblasts from pediatric patients with high-risk acute lymphoblastic leukemia (ALL) using Affymetrix GeneChip Mapping 500K array sets. (Pilot project)
- Identify regions of CNA and loss-of-heterozygosity using Affymetrix SNP 6.0 microarrays. (Expansion project)
- Define gene expression profiles for leukemic lymphoblasts using Affymetrix U133 Plus 2.0 arrays.
- Assess the global expression of microRNAs in leukemic lymphoblasts using microRNA gene chips.
- Utilize array-generated gene expression data and data for CNAs and uniparental disomy to prioritize candidate genes and genomic regions for resequencing.
- Characterize epigenomic profiles using the HpaII tiny fragment Enrichment by Ligation-mediated PCR (HELP) assay. (Expansion project)
- Discover candidate therapeutic targets for these patients by identifying genes that are consistently mutated in leukemic lymphoblasts using high-throughput focused gene resequencing. (Pilot project)
- Discover candidate therapeutic targets for these patients by next generation sequencing technologies, including whole genome, whole transcriptome, and whole exome. (Expansion project)
OUTLINE: This is a multicenter study.
Banked biological samples (bone marrow and peripheral blood) are analyzed using gene expression profiling, single-nucleotide polymorphism and genotyping assays, DNA copy number and loss of heterozygosity estimates, epigenetic profiling, and gene resequencing.
PROJECTED ACCRUAL: A total of 150 patient samples will be accrued for this study.
研究の種類
入学 (予想される)
連絡先と場所
研究場所
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South Carolina
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Charleston、South Carolina、アメリカ、29425
- Hollings Cancer Center at Medical University of South Carolina
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
サンプリング方法
調査対象母集団
説明
DISEASE CHARACTERISTICS:
Diagnosis of B-cell precursor acute lymphoblastic leukemia (ALL)
- High-risk disease
Participation in clinical trial COG-P9906 required (pilot project)
- In complete remission
- Consented to future studies using banked tissue specimens
Participation in clinical trial and COG-AALL03B1 and linked therapeutic studies COG-AALL0232 and COG- AALL0331(expansion project)
- Experienced a bone marrow relapse within 36 months of initial diagnosis
- Consented to future studies using banked tissue specimens
- Have matched ALL blast and germline specimens
- Demographic, clinical and pathologic data elements for these biospecimens available
PATIENT CHARACTERISTICS:
- Not specified
PRIOR CONCURRENT THERAPY:
- Not specified
研究計画
研究はどのように設計されていますか？
デザインの詳細
この研究は何を測定していますか？
主要な結果の測定
結果測定 |
|---|
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Identification of regions of copy number abnormalities (CNA) and uniparental disomy in leukemic lymphoblasts using Affymetrix GeneChip Mapping 500K array sets
|
|
Identification of regions of CNA and loss-of-heterozygosity using Affymetrix SNP 6.0 microarrays. (Expansion project)
|
|
Gene expression profiles for leukemic lymphoblasts using Affymetrix U133 Plus 2.0 arrays
|
|
Global expression of microRNAs in leukemic lymphoblasts using microRNA gene chips
|
|
Epigenomic profiles using the HpaII tiny fragment Enrichment by Ligation-mediated PCR (HELP) assay. (Expansion project)
|
|
Prioritization of candidate genes and genomic regions for resequencing using array-generated gene expression data and data for CNAs
|
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Identification of genes that are consistently mutated in leukemic lymphoblasts using high-throughput focused gene resequencing
|
協力者と研究者
捜査官
- スタディチェア：Stephen P. Hunger, MD、Children's Hospital Colorado Center for Cancer and Blood Disorders
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
その他の研究ID番号
- AALL06B1
- COG-AALL06B1 (その他の識別子：Children's Oncology Group)
- CDR0000496763 (その他の識別子：Clinical Trials.gov)
- NCI-2009-00314 (レジストリ識別子：CTRP (Clinical Trial Reporting Program))
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。