Diagnostic Study of Gene Alterations in Children Who Have Been Treated for Relapsed Acute Lymphocytic Leukemia

This study has been completed.
Sponsor:
Collaborator:
Information provided by (Responsible Party):
Children's Oncology Group
ClinicalTrials.gov Identifier:
NCT00003933
First received: November 1, 1999
Last updated: August 6, 2014
Last verified: August 2014
  Purpose

RATIONALE: Diagnostic procedures, such as genetic testing, may improve the ability to detect acute lymphocytic leukemia and determine the extent of disease.

PURPOSE: Diagnostic study to try to detect changes in the genes of children who have been treated for relapsed acute lymphocytic leukemia.


Condition Intervention
Leukemia
Other: laboratory biomarker analysis

Study Type: Interventional
Study Design: Primary Purpose: Diagnostic
Official Title: The Incidence and Prognostic Significance of P16 INK4A/ P15 INK4B Gene Alterations in Children With Relapsed ALL Treated on CCG-1941

Resource links provided by NLM:


Further study details as provided by Children's Oncology Group:

Study Start Date: April 1999
Primary Completion Date: April 2006 (Final data collection date for primary outcome measure)
Detailed Description:

OBJECTIVES:

  • Determine the incidence of p16/p15 homozygous deletions and p15 promoter hypermethylation in acute lymphocytic leukemia cells of children treated on protocol CCG-1941.
  • Determine the prognostic importance of p16/p15 abnormalities in these children.
  • Determine the presence or absence of p16/p15 abnormalities in the dominant clone at diagnosis if present at relapse in these patients.

OUTLINE: Frozen cells are obtained from samples collected on protocol CCG-1941. DNA is isolated and examined using Southern blot analysis to assay for deletions and promoter hypermethylation of p16 and/or p15.

PROJECTED ACCRUAL: Approximately 100 samples will be obtained for this study.

  Eligibility

Ages Eligible for Study:   up to 17 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

DISEASE CHARACTERISTICS:

  • Diagnosis of acute lymphocytic leukemia and treated on protocol CCG-1941
  • Material cryopreserved in the CCG cell bank

PATIENT CHARACTERISTICS:

Age:

  • Children

Performance status:

  • Not specified

Life expectancy:

  • Not specified

Hematopoietic:

  • Not specified

Hepatic:

  • Not specified

Renal:

  • Not specified

PRIOR CONCURRENT THERAPY:

Biologic therapy:

  • Not specified

Chemotherapy:

  • Not specified

Endocrine therapy:

  • Not specified

Radiotherapy:

  • Not specified

Surgery:

  • Not specified

Other:

  • See Disease Characteristics
  Contacts and Locations
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, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00003933

  Show 41 Study Locations
Sponsors and Collaborators
Children's Oncology Group
Investigators
Study Chair: Stephen P. Hunger, MD University of Florida
  More Information

Additional Information:
No publications provided

Responsible Party: Children's Oncology Group
ClinicalTrials.gov Identifier: NCT00003933     History of Changes
Other Study ID Numbers: B9805, COG-B9805, CCG-B9805, CDR0000067125
Study First Received: November 1, 1999
Last Updated: August 6, 2014
Health Authority: United States: Federal Government

Keywords provided by Children's Oncology Group:
recurrent childhood acute lymphoblastic leukemia

Additional relevant MeSH terms:
Leukemia
Precursor Cell Lymphoblastic Leukemia-Lymphoma
Neoplasms by Histologic Type
Neoplasms
Leukemia, Lymphoid
Lymphoproliferative Disorders
Lymphatic Diseases
Immunoproliferative Disorders
Immune System Diseases

ClinicalTrials.gov processed this record on September 30, 2014