S9313B Study of Tumor Tissue Samples From Women With Early-Stage Breast Cancer Enrolled on Clinical Trial SWOG-9313
Evaluation of the Expression of the Cancer Stem Cell Marker ALDH1 as a Predictor of Adjuvant Chemotherapy Response in Breast Cancers of High Risk Women in SWOG-9313
RATIONALE: Studying samples of tumor tissue from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. It may also help doctors predict how patients enrolled on clinical trial SWOG-9313 will respond to doxorubicin and cyclophosphamide.
PURPOSE: This laboratory study is looking at tumor tissue samples from women with early-stage breast cancer enrolled on clinical trial SWOG-9313.
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
OBJECTIVES:
Primary
- To determine if ALDH1 positivity, as determined by IHC staining, identifies a poor prognostic subgroup of women with early-stage breast cancer who have been uniformly treated with adjuvant doxorubicin and cyclophosphamide on clinical trial SWOG-9313.
Secondary
- To determine associations of ALDH1 expression with other known factors that have been determined on clinical trial SWOG-9313, such as estrogen receptor (ER) status, HER2 status, TOPOII, cyclin E, and p27.
- To determine if ALDH1 positivity, as determined by IHC staining, identifies a poor prognostic subgroup within ER and HER2 subgroups in patients treated on clinical trial SWOG-9313.
OUTLINE: This is a multicenter study.
Tumor tissue samples from clinical trial SWOG-9313 are analyzed for ALDH1 expression by IHC.
Study Type
Study Type
Enrollment (Actual)
Enrollment
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
DISEASE CHARACTERISTICS:
- Tumor samples collected from women diagnosed with early-stage breast cancer on clinical trial SWOG-9313 available
PATIENT CHARACTERISTICS:
- Not specified
PRIOR CONCURRENT THERAPY:
- See Disease Characteristics
Study Plan
How is the study designed?
Design Details
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Correlation of ALDH1 with disease-free survival and overall survival
Time Frame: Retrospectively
|
Retrospectively
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Correlation of ALDH1 with other biomarkers (TOPOII, HER2, ER, PgR)
Time Frame: Retrospectively
|
Retrospectively
|
Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (ACTUAL)
Primary Completion
Study Completion (ACTUAL)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
First Posted
Study Record Updates
Last Update Posted (ESTIMATE)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- CDR0000632885
- U10CA032102 (U.S. NIH Grant/Contract)
- S9313B-ICSC (OTHER: SWOG)
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