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Gene Expression in Samples From Patients With T-Cell Acute Lymphoblastic Leukemia

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01520246
Recruitment Status : Completed
First Posted : January 27, 2012
Last Update Posted : July 11, 2016
National Cancer Institute (NCI)
Information provided by (Responsible Party):
Children's Oncology Group

Brief Summary:

RATIONALE: Studying samples of blood and tissue from patients with cancer in the laboratory may help doctors identify and learn more about biomarkers related to cancer. It may also help doctors find better ways to treat cancer.

PURPOSE: This research trial studies gene expression in samples from patients with T-cell acute lymphoblastic leukemia.

Condition or disease Intervention/treatment
Leukemia Lymphoma Genetic: gene expression analysis Other: laboratory biomarker analysis

Detailed Description:


  • To test whether the tumor suppressor candidate gene PDLIM2 is downregulated in human cancers such as T-cell acute lymphoblastic leukemia (T-ALL) and to use the human T-lymphotropic virus 1 (HTLV-1)-mediated in vitro transformation of human T cells as control.

OUTLINE: Previously collected cancer and control tissues are analyzed for the expression patterns of PDLIM2 and other control genes. Human T-cells isolated from human blood are also co-cultured with HTLV-1-transformed T-cell lines.

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Study Type : Observational
Estimated Enrollment : 20 participants
Observational Model: Case-Only
Time Perspective: Retrospective
Official Title: Signaling in Tumorigenesis and Immunity
Study Start Date : January 2012
Actual Primary Completion Date : July 2016

Primary Outcome Measures :
  1. PDLIM2 expression patterns in cancer and control tissues
  2. 8-week survival of human T-cell co-cultured with HTLV-1-transformed T-cell lines

Biospecimen Retention:   Samples With DNA
tissue, blood, and bodily fluids

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   up to 120 Years   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients With T-Cell Acute Lymphoblastic Leukemia


  • Specimens (e.g., tissue, blood, and bodily fluids) of various cancer cells and or tissues from de-identified patients such as T-cell acute lymphoblastic leukemia (T-ALL)
  • Normal control tissue


  • Not specified


  • Not specified

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01520246

Sponsors and Collaborators
Children's Oncology Group
National Cancer Institute (NCI)
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Principal Investigator: Gutian Xiao, MD University of Pittsburgh
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Responsible Party: Children's Oncology Group Identifier: NCT01520246    
Other Study ID Numbers: AALL12B2
COG-AALL12B2 ( Other Identifier: Children's Oncology Group )
CDR0000723902 ( Other Identifier: )
AALL12B2 ( Other Identifier: COG )
NCI-2012-00241 ( Registry Identifier: CTRP (Clinical Trial Reporting Program) )
First Posted: January 27, 2012    Key Record Dates
Last Update Posted: July 11, 2016
Last Verified: July 2016
Keywords provided by Children's Oncology Group:
adult acute lymphoblastic leukemia
childhood acute lymphoblastic leukemia
adult T-cell leukemia/lymphoma
Additional relevant MeSH terms:
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Precursor Cell Lymphoblastic Leukemia-Lymphoma
Neoplasms by Histologic Type
Lymphoproliferative Disorders
Lymphatic Diseases
Immunoproliferative Disorders
Immune System Diseases
Leukemia, Lymphoid