Studying Dexamethasone and Prednisone Sensitivity in Samples From Younger Patients With High-Risk B-Cell Precursor Acute Lymphoblastic Leukemia

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

B-precursor Acute Lymphoblastic Leukemia (ALL): Studying the Mechanisms Behind Dexamethasone and Prednisone Sensitivity in High-Risk Patients

RATIONALE: Studying samples of blood, tissue, or 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.

PURPOSE: This research trial is studying dexamethasone and prednisone sensitivity in samples from younger patients with high-risk B-cell precursor acute lymphoblastic leukemia.

Study Overview

Detailed Description

OBJECTIVES:

  • Identify differences in the effect of dexamethasone (Dex) and prednisone (Pred) on glucocorticoid receptor (GR) occupancy and gene expression in high-risk (HR) B-cell precursor (BCP)-acute lymphoblastic leukemia (ALL) samples from patients aged 1-9.
  • Identify differences in gene expression and GR occupancy of response elements in HR BCP-ALL patients > 10 years old in response to both Dex and Pred.

OUTLINE: Archived samples are analyzed for gene expression analysis and genomic location of glucocorticoid receptor by ChIP sequencing (ChiPseq) and RNA sequencing. Data of gene expression and ChiPseq data sets are compared by luciferase reporter assay.

Study Type

Observational

Enrollment (Anticipated)

20

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

1 year to 21 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients diagnosed with high-risk B-cell precursor acute lymphoblastic leukemia

Description

DISEASE CHARACTERISTICS:

  • Patients diagnosed with high-risk B-cell precursor acute lymphoblastic leukemia
  • Samples from patients treated and not treated with Dex and Pred

PATIENT CHARACTERISTICS:

  • Not specified

PRIOR CONCURRENT THERAPY:

  • See Disease Characteristics

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Differentially expressed genes from both HR BCP-ALL patients aged 1-9 and patients over 10 years old
Genes that are required for efficient apoptosis

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Miles A. Pufall, PhD, University of Iowa

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

April 1, 2012

Primary Completion (Actual)

May 1, 2016

Study Registration Dates

First Submitted

March 10, 2012

First Submitted That Met QC Criteria

March 10, 2012

First Posted (Estimate)

March 14, 2012

Study Record Updates

Last Update Posted (Estimate)

May 18, 2016

Last Update Submitted That Met QC Criteria

May 17, 2016

Last Verified

May 1, 2016

More Information

Terms related to this study

Other Study ID Numbers

  • AALL12B4 (Other Identifier: COG)
  • COG-AALL12B4 (Other Identifier: Children's Oncology Group)
  • CDR0000728515 (Other Identifier: clinicaltrials.gov)
  • NCI-2012-00704 (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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