Biomarkers in Tissue Samples From Patients With Breast Cancer Treated With Bevacizumab

NCT ID: NCT01156168

Last Updated: 2017-05-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

363 participants

Study Classification

OBSERVATIONAL

Study Start Date

2011-04-05

Study Completion Date

2011-09-08

Brief Summary

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RATIONALE: DNA analysis of tumor tissue may help doctors predict how well patients will respond to treatment.

PURPOSE: This research study is studying biomarkers in tissue samples from patients with breast cancer treated with bevacizumab.

Detailed Description

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OBJECTIVES:

Primary

* To demonstrate that vascular endothelial growth factor-A (VEGFA) haplotypes that are associated with an increased VEGFA expression will predict superior outcome for patients with metastatic breast cancer receiving bevacizumab in ECOG-E2100 (but not for the control arm).
* To demonstrate that candidate single nucleotide polymorphisms (SNPs) will further improve the predictive capacity of outcome (efficacy and toxicity) in patients enrolled in ECOG-E2100.
* To demonstrate that tumor VEGFA amplification or borderline amplification (estimated 14% frequency) will predict superior outcome for patients with metastatic breast cancer receiving bevacizumab on ECOG-E2100 whereas those with VEGFA deletion (estimated 11% frequency) will predict inferior outcome.
* To demonstrate that VEGFA amplification/deletion will not predict outcome in the control arm of ECOG-E2100.

Secondary

* To demonstrate that tumor VEGFA amplification will predict increased protein expression as ascertained by IHC.
* To demonstrate that a combined algorithm calculated from tumor-specific variability (VEGFA amplification/deletion) and host-specific variability (SNPs) will optimally predict outcome (efficacy) with bevacizumab in patients enrolled on ECOG-E2100.

OUTLINE: This is a multicenter study.

Previously collected tumor-derived DNA is analyzed for VEGFA amplification/deletion and haplotype as biomarkers for outcome after bevacizumab treatment. Gene expression, polymorphism, protein expression analysis, and IHC are performed on the samples.

Conditions

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Breast Cancer

Study Design

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Observational Model Type

OTHER

Study Time Perspective

RETROSPECTIVE

Interventions

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DNA analysis

Intervention Type GENETIC

gene expression analysis

Intervention Type GENETIC

polymorphism analysis

Intervention Type GENETIC

protein expression analysis

Intervention Type GENETIC

immunohistochemistry staining method

Intervention Type OTHER

laboratory biomarker analysis

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

DISEASE CHARACTERISTICS:

* Enrolled on ECOG-E2100

PATIENT CHARACTERISTICS:

* Not specified

PRIOR CONCURRENT THERAPY:

* See Disease Characteristics
Minimum Eligible Age

18 Years

Maximum Eligible Age

120 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Cancer Institute (NCI)

NIH

Sponsor Role collaborator

ECOG-ACRIN Cancer Research Group

NETWORK

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Bryan P. Schneider, MD

Role: PRINCIPAL_INVESTIGATOR

Indiana University Melvin and Bren Simon Cancer Center

Other Identifiers

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ECOG-E2100T4

Identifier Type: -

Identifier Source: secondary_id

CDR0000681004

Identifier Type: -

Identifier Source: org_study_id

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