Study of Biomarkers in Tissue Samples From Patients With Breast Cancer

The recruitment status of this study is unknown because the information has not been verified recently.
Verified October 2009 by National Cancer Institute (NCI).
Recruitment status was  Not yet recruiting
Sponsor:
Collaborator:
Information provided by:
National Cancer Institute (NCI)
ClinicalTrials.gov Identifier:
NCT01004796
First received: October 29, 2009
Last updated: NA
Last verified: October 2009
History: No changes posted
  Purpose

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.

PURPOSE: This research study is looking at tissue samples from patients with breast cancer.


Condition Intervention
Breast Cancer
Genetic: cytogenetic analysis
Genetic: microarray analysis
Genetic: mutation analysis
Other: immunohistochemistry staining method
Other: immunologic technique
Other: mass spectrometry

Study Type: Observational
Official Title: Estrogen-Related Receptor Alpha As A Novel Biomarker For Breast Cancer

Resource links provided by NLM:


Further study details as provided by National Cancer Institute (NCI):

Primary Outcome Measures:
  • Post-translational modifications of estrogen-related receptor alpha (ERRα1) that are responsible for ERRα1 function as a constitutive activator rather than a down-modulator of transcription of estrogen response element-regulated genes [ Designated as safety issue: No ]
  • Production of a panel of monoclonal antibodies to ERRα1 by standard hybridoma methods that can be used to distinguish between the activator and repressor forms of this receptor [ Designated as safety issue: No ]
  • Validation of the utility for immunohistochemistry (IHC) assays of some of the ERRα-specific sera by performing IHC and quantitative real-time PCR on some primary breast carcinomas [ Designated as safety issue: No ]
  • Correlation of the results of IHC studies on archival paraffin sections of primary breast tumors using monoclonal antibodies to ERRα1, ERRα1 status, currently assayed biomarkers, and course of treatment with patient outcomes [ Designated as safety issue: No ]

Detailed Description:

OBJECTIVES:

  • Identify by mass spectroscopy and site-specific mutagenesis the post-translational modifications of estrogen-related receptor alpha (ERRα1) that are responsible for ERRα1 function as a constitutive activator rather than a down-modulator of transcription of estrogen response element-regulated genes in tumors of patients with breast cancer.
  • Produce a panel of monoclonal antibodies to ERRα1 by standard hybridoma methods that can be used to distinguish between the activator and repressor forms of this receptor in these patients.
  • Validate the utility for immunohistochemistry (IHC) assays of some of the ERRα-specific sera by performing IHC and quantitative real-time PCR on some primary breast carcinomas.
  • Correlate the results of IHC studies on archival paraffin sections of primary breast tumors using monoclonal antibodies to ERRα1, ERRα1 status, currently assayed biomarkers, and course of treatment with patient outcomes.

OUTLINE: Breast tumor tissue samples are obtained from a tissue bank in the form of frozen tumors and paraffin-embedded sections on microarray blocks. Monoclonal antibodies (MOABs) to ERRα1 are produced using antigens in these tissue samples and immunohistochemical studies are performed using the MOABs. Cytogenetic studies are performed on DNA purified from these tissue samples.

  Eligibility

Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

DISEASE CHARACTERISTICS:

  • Diagnosis of breast cancer
  • Tumor tissue available
  • The following clinical information must be known:

    • ErbB2 status
    • Nodal status
    • Percent S phase
  • Hormone receptor status:

    • Estrogen receptor and progesterone receptor status known

PATIENT CHARACTERISTICS:

  • Menopausal status not specified

PRIOR CONCURRENT THERAPY:

  • Not specified
  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: NCT01004796

Sponsors and Collaborators
University of Wisconsin, Madison
Investigators
Study Chair: Janet E. Mertz, PhD University of Wisconsin, Madison
  More Information

Additional Information:
No publications provided

ClinicalTrials.gov Identifier: NCT01004796     History of Changes
Other Study ID Numbers: CDR0000357299, WCCC-CO-TEMP
Study First Received: October 29, 2009
Last Updated: October 29, 2009
Health Authority: Unspecified

Keywords provided by National Cancer Institute (NCI):
breast cancer

Additional relevant MeSH terms:
Breast Neoplasms
Neoplasms by Site
Neoplasms
Breast Diseases
Skin Diseases

ClinicalTrials.gov processed this record on July 26, 2014