Studying Biomarkers in Samples From Younger Patients With Acute Myeloid Leukemia

May 17, 2016 updated by: Children's Oncology Group

Observational - Rapid Identification of Leukemia Stem Cells Associated With AML1-ETO and Inv(16) Through Characterization of Oncogene-Induced Changes in Cell-Surface Antigen Profiles on Hematopoietic Stem Cells

This laboratory study is looking into biomarkers in samples from younger patients with acute myeloid leukemia. Studying samples of 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

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Study Subtype: Observational Observational Study Model: Case-control Time Perspective: Retrospective Biospecimen Retention: Samples With DNA Biospecimen Description: Cryopreserved bone marrow samples Study Population Description: Patient samples with the AML1-ETO translocation and cytologically normal AML samples for controls Sampling Method: Non-Probability Sample

OBJECTIVES:

I. To address whether the mutation-specific cell-surface markers observed in murine system will allow the prospective isolation of leukemia stem cells (LSC) from human bone marrow samples that have the same cytogenetic abnormalities.

II. To compare the incidence of leukemia in NSG mice that have received CD34+CD38 marker+ cells to NSG mice that receive what are hypothesized to be normal cells (CD34+CD38 marker-subset) from the same patient.

OUTLINE:

Samples and controls are sorted and re-sorted for CD34, CD38, and CD55 subsets by single-cell polymerase chain reaction (PCR) analysis, flow cytometry, and reverse-transcriptase PCR. Sorted cell subsets are then transplanted into NSG mice. Beginning 6 weeks after transplantation, peripheral blood samples are collected and analyzed for human lymphoid- and myeloid-lineage cells by fluorescence-activated cell sorting (FACS).

Study Type

Observational

Enrollment (Actual)

20

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • Monrovia, California, United States, 91006-3776
        • Children's Oncology Group

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

No older than 30 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

childhood acute myeloid leukemia (AML) patients

Description

Inclusion Criteria:

  • Frozen bone marrow aspirates obtained from childhood acute myeloid leukemia (AML) patients possessing defined cytogenetic mutations; AML1-ETO or inv(16)
  • Samples of cytogenetically normal AML cases obtained from the University of Alabama at Birmingham (UAB) as controls

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Observational
Samples and controls are sorted and re-sorted for CD34, CD38, and CD55 subsets by single-cell PCR analysis, flow cytometry, and reverse-transcriptase PCR. Sorted cell subsets are then transplanted into NSG mice. Beginning 6 weeks after transplantation, peripheral blood samples are collected and analyzed for human lymphoid- and myeloid-lineage cells by FACS.
Other: laboratory biomarker analysis
Correlative studies

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Expression of the CD55 marker on CD34+CD38- cells
Time Frame: Up to 6 months
Up to 6 months
Presence of the AML1-ETO translocation
Time Frame: Up to 6 months
Up to 6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Children's Oncology Group

Collaborators

National Cancer Institute (NCI)

Investigators

  • Principal Investigator: Stephanie Heidemann, MD, Children's Oncology Group

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 2012

Primary Completion (Actual)

May 1, 2016

Study Registration Dates

First Submitted

July 13, 2012

First Submitted That Met QC Criteria

July 13, 2012

First Posted (Estimate)

July 17, 2012

Study Record Updates

Last Update Posted (Estimate)

May 19, 2016

Last Update Submitted That Met QC Criteria

May 17, 2016

Last Verified

May 1, 2016

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • AAML12B10
  • NCI-2012-01983 (Registry Identifier: CTRP (Clinical Trial Reporting Program))

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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