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Biomarkers in Samples From Patients With Chronic Lymphocytic Leukemia Treated on Clinical Trial ECOG-2997

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00899873
First Posted: May 12, 2009
Last Update Posted: May 17, 2017
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.
Collaborator:
National Cancer Institute (NCI)
Information provided by (Responsible Party):
Eastern Cooperative Oncology Group ( ECOG-ACRIN Cancer Research Group )
  Purpose

RATIONALE: Studying samples of cells in the laboratory from patients with cancer may help identify biomarkers related to cancer. It may also help doctors learn how patients respond to treatment.

PURPOSE: This laboratory study is analyzing samples of cells from patients with chronic lymphocytic leukemia who were treated on clinical trial ECOG-2997.


Condition Intervention
Leukemia Genetic: cytogenetic analysis Other: flow cytometry Other: fluorescence activated cell sorting Other: immunoenzyme technique Other: laboratory biomarker analysis

Study Type: Observational
Study Design: Observational Model: Other
Time Perspective: Retrospective
Official Title: Proposed Study of CLL Samples

Resource links provided by NLM:


Further study details as provided by Eastern Cooperative Oncology Group ( ECOG-ACRIN Cancer Research Group ):

Primary Outcome Measures:
  • Correlation of biomarker analysis and correlation with outcome response [ Time Frame: 1 month ]

Enrollment: 225
Actual Study Start Date: April 17, 2012
Study Completion Date: July 17, 2012
Primary Completion Date: July 17, 2012 (Final data collection date for primary outcome measure)
Detailed Description:

OBJECTIVES:

  • To analyze the expression of a variety of informative molecules using a unique high-resolution flow cytometric immunophenotyping technology in samples from patients with chronic lymphocytic leukemia enrolled in clinical trial ECOG-2997.

OUTLINE: Cell samples are analyzed for the following prognostic biomarkers: ZAP-70, phospho-Syk, phospho-GSK-3β, phospho-Akt, phospho-ZAP-70, cyclin D1, cyclin D2, p21cip1, phospho-ReIA, IkappaBα, Bax, Mcl-1, PTEN, phospho-Erk1/2, and phospho-MEK1/2. Biomarker signals are amplified using enzymatic amplification staining to obtain high resolution detection of cell-surface markers on leukemic cells. Biomarker expression levels are measured using fluorescence activated cell sorting analysis. Relationships between clinical outcomes, standard flow cytometric analysis, cytogenetic studies, and high resolution immunophenotyping will also be assessed.

  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 120 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Samples submitted for research from patients enrolled on E2997
Criteria

DISEASE CHARACTERISTICS:

  • Stored frozen viable cells from patients with chronic lymphocytic leukemia treated on clinical trial ECOG-2997

PATIENT CHARACTERISTICS:

  • Not specified

PRIOR CONCURRENT THERAPY:

  • Not specified
  Contacts and Locations
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 ClinicalTrials.gov identifier (NCT number): NCT00899873


Sponsors and Collaborators
ECOG-ACRIN Cancer Research Group
National Cancer Institute (NCI)
Investigators
Study Chair: David Kaplan, MD, PhD University Hospitals Seidman Cancer Center
  More Information

Responsible Party: ECOG-ACRIN Cancer Research Group
ClinicalTrials.gov Identifier: NCT00899873     History of Changes
Other Study ID Numbers: CDR0000617494
ECOG-E2997T1
First Submitted: May 9, 2009
First Posted: May 12, 2009
Last Update Posted: May 17, 2017
Last Verified: May 2017

Keywords provided by Eastern Cooperative Oncology Group ( ECOG-ACRIN Cancer Research Group ):
chronic lymphocytic leukemia

Additional relevant MeSH terms:
Leukemia
Leukemia, Lymphoid
Leukemia, Lymphocytic, Chronic, B-Cell
Neoplasms by Histologic Type
Neoplasms
Lymphoproliferative Disorders
Lymphatic Diseases
Immunoproliferative Disorders
Immune System Diseases
Leukemia, B-Cell