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CompletedNCT00899366Updated Feb 5, 2020

DNA Analysis of Tissue From Patients With T-Cell Acute Lymphoblastic Leukemia

An observational study in Leukemia, sponsored by ECOG-ACRIN Cancer Research Group. Completed. Open to participants aged 18 Years to 120 Years. Per ClinicalTrials.gov, last updated 2020-02-05.

Sponsored by ECOG-ACRIN Cancer Research Group · Observational

Study type
Observational
Model
Other
Time perspective
Retrospective
Enrollment
49
Ages
18 Years to 120 Years
Sex
All
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Study summary

RATIONALE: Studying samples of tissue from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer.

PURPOSE: This laboratory study is looking at tissue samples from patients with T-cell acute lymphoblastic leukemia.

Read the detailed description

OBJECTIVES:

  • Identify the transcriptional signatures associated with the presence of NOTCH1 mutations in primary T-cell acute lymphoblastic leukemia (T-ALL) cells using oligonucleotide microarrays.
  • Characterize the global changes on gene expression resulting from the inactivation of NOTCH signaling in human T-ALL lymphoblasts.

OUTLINE: This is a multicenter study.

Frozen lymphoblast samples from patients with T-cell acute lymphoblastic leukemia (NOTCH1-mutated and wild type) are assessed for genetic expression profiles and mutations by microarray analysis and activated NOTCH1 protein by western blot analysis.

PROJECTED ACCRUAL: A total of 48 samples from patients will be accrued for this study.

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Conditions studied

  • Leukemia

Keywords

  • T-cell adult acute lymphoblastic leukemia
  • T-cell childhood acute lymphoblastic leukemia
  • untreated adult acute lymphoblastic leukemia
  • untreated childhood acute lymphoblastic leukemia
  • recurrent adult acute lymphoblastic leukemia
  • recurrent childhood acute lymphoblastic leukemia
  • adult acute lymphoblastic leukemia in remission
  • childhood acute lymphoblastic leukemia in remission
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In context

Leukemia

5,442 studies on the registry are indexed under Leukemia; 637 are open to participants now.

This study's enrollment of 49 is below the median of 120 across 744 observational studies indexed under Leukemia.

Browse Leukemia studies →

Lead sponsor

ECOG-ACRIN Cancer Research Group is the lead sponsor of 118 studies on the registry; 13 are open to participants now.

Of its 13 completed or terminated interventional studies of FDA-regulated products, 13 (100%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 120 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Samples submitted for research from patients participating in E2993

Eligibility criteria

DISEASE CHARACTERISTICS:

  • Confirmed diagnosis of T-cell acute lymphoblastic leukemia
  • Frozen lymphoblast samples available

    • NOTCH1-mutated or wild type sample available

PATIENT CHARACTERISTICS:

  • Not specified

PRIOR CONCURRENT THERAPY:

  • Not specified

Exclusion Criteria:

  • Not applicable
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Study design

Observational model
Other
Time perspective
Retrospective
Enrollment
49 participants (actual)
Biospecimen retention
Samples with dna

Interventions

  • Geneticmicroarray analysis
  • Geneticmutation analysis
  • Otherimmunologic technique
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What researchers measure

Primary outcomes

  1. Transcriptional signatures associated with NOTCH1 mutations in T-cell acute lymphoblastic leukemia (T-ALL) cells

    Mutational analysis

    Time frame: 1 month

  2. Global changes on gene expression resulting from inactivation of NOTCH signaling in T-ALL cells

    Gene expression

    Time frame: 1 month

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Study locations

No study locations are listed for this record.

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References and documents

Related links

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 5, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00899366
Lead sponsor
ECOG-ACRIN Cancer Research Group
Collaborators
National Cancer Institute (NCI)
Responsible party
Sponsor
First posted
May 12, 2009
Start date
Dec 28, 2006
Primary completion
Jul 30, 2009
Completion
Jul 30, 2009
Last update
Feb 5, 2020

Study contacts

Adolfo A. Ferrando, MD, PhD
study chair · Herbert Irving Comprehensive Cancer Center
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in May 2017. You cannot join it, but the record below documents what was studied.

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