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Completed

NCT Number: NCT01575535

S0106B Studying Bone Marrow Samples From Women With Acute Myeloid Leukemia

RATIONALE: Studying samples of bone marrow from patients with cancer in the laboratory may help doctors identify and learn more about biomarkers related to cancer.

PURPOSE: This research trial studies bone marrow samples from women with acute myeloid leukemia.

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Key information

About this study

OBJECTIVES:

  • Estimate the proportion of acute myeloid leukemia (AMLs) that originate in CD33+ precursors or in which uncontrolled growth is limited to CD33+ precursors.
  • Explore whether there is an association between the cellular origin of AML (i.e., origination in CD33+ precursors or not) and cytogenetic, molecular, and other patient characteristics.
  • Explore whether overall survival (OS), event-free survival (EFS), disease-free survival (DFS), response rate (RR), or relapse rate is improved for patients with AMLs that originate in CD33+ precursors or in which uncontrolled growth is limited to CD33+ precursors compared to patients with clonally involved cells not detected.

OUTLINE: Archived bone marrow samples are analyzed for CD33+ progenitors, X-chromosome inactivation, and somatic mutations (t(8;21), inv(16), FLT3/ITD, NPM1, CEBPA, KIT) by fluorescence-activated cell sorting, long-term culture in hypoxic condition in cytokine-containing liquid media, and flow cytometry. Results are then compared with each patient clinical data.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

DISEASE CHARACTERISTICS:

  • Diagnostic bone marrow specimens from female patients with untreated AML undergoing intensive ("3+7"-like) induction chemotherapy
  • Specimens from the South Western Oncology Group (SWOG) protocols S0106 (age 18 to 60 years), excluding patients who received gemtuzumab ozogamicin (GO), and S9333 (age > 60 years)

PATIENT CHARACTERISTICS:

  • See Disease Characteristics

PRIOR CONCURRENT THERAPY:

  • See Disease Characteristics

Treatment and study plan

gene expression analysis

Genetic

flow cytometry

Other

fluorescence activated cell sorting

Other

laboratory biomarker analysis

Other

medical chart review

Other

Primary outcomes

  1. Association between CD33+ precursors and cytogenetic and/or molecular risks using Fisher's exact test

    Time frame: May 2012

  2. Relationship between emergence of individual mutations [t(8;21), inv(16), FLT3/ITD, NPM1, CEBPA, and KIT], clonality, and stage of cell differentiation using Fisher's exact test

    Time frame: May 2012

  3. Associations between survival outcomes (OS, EFS, DFS, RR, and relapse rate) and CD33+ restriction using regression analysis

    Time frame: May 2012

Sponsors and collaborators

Lead sponsor

SWOG Cancer Research Network

Network

Collaborators

  • National Cancer Institute (NCI)

Registry information

Official study title

S0106B, Stem Cell Origin in AML: Prognostic and Therapeutic Implications

Important dates

Study start
2012
Primary completion
2012
Study completion
2012
First posted
Apr 11, 2012
Registry last updated
Mar 6, 2015

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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