Tamoxifen Resistance in Women With Stage I, Stage II, Stage IIIA, or Stage IIIB Breast Cancer

July 31, 2017 updated by: Wake Forest University Health Sciences

Tamoxifen Resistance in Breast Cancer

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

PURPOSE: This laboratory study is looking at tamoxifen resistance in women with stage I, stage II, stage IIIA, or stage IIIB breast cancer.

Study Overview

Status

Terminated

Conditions

Intervention / Treatment

Detailed Description

OBJECTIVES:

  • Identify women who are resistant to tamoxifen citrate and other drugs for the treatment of breast cancer by testing their plasma for the presence of proteins (e.g., macrophage migration inhibition factor) encoded by resistance-inducing genes (RIGs).
  • Provide retrospective data on the predictive value of RIGs to serve as the basis for a prospective clinical trial of these genes as predictors of drug resistance.

OUTLINE: This is a multicenter study. Patients are stratified according to response during tamoxifen citrate (TAM) therapy (resistant group [i.e., those who develop recurrent breast cancer while being treated with TAM] vs conditionally sensitive group [i.e., those who have disease-free survival for over 3 years after initial diagnosis while being treated with TAM]).

Patients undergo blood collection at baseline, within 3 weeks of initiation of TAM therapy, and then every 6 months for 3 years or until relapse, whichever comes first. Samples are analyzed by enzyme-linked immunosorbent assay for expression of protein biomarkers (i.e., kallikrein gene 10, macrophage migration inhibition factor, prolyl carboxypeptidase, queuine tRNA-ribosyltransferase, and kinesin) encoded by resistance-inducing genes. An additional blood sample is obtained from patients at the time of relapse, if available.

Patients also undergo assessment of medical history, personal habits, and characteristics of breast cancer (e.g., tumor histology, stage, and grade) at baseline.

Study Type

Observational

Enrollment (Actual)

2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • North Carolina
      • Winston-Salem, North Carolina, United States, 27157-1096
        • Wake Forest University Comprehensive Cancer Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 120 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Sampling Method

Non-Probability Sample

Study Population

Female >/= 18 years old with confirmed invasive breast cancer

Description

Inclusion Criteria:

  • Histologically confirmed invasive breast cancer

    • Initial pathologic stage I-IIIB disease
    • No stage IV disease

  • Meets the following criteria for breast cancer therapy:

    • Received prior primary local therapy for breast cancer
    • Scheduled to begin tamoxifen citrate as adjuvant therapy for breast cancer within 3 weeks

  • Hormone receptor status:

    • Estrogen-receptor positive tumor
  • Female
  • Pre- or post-menopausal
  • Must be able to donate 20 mL of blood

Exclusion Criteria:

  • Severe anemia, defined as hemoglobin < 11 g/dL
  • Psychiatric history that would preclude obtaining informed consent

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Evaluation of the mechanisms of tamoxifen citrate (TAM) resistance in breast cancer
Change in expression levels of protein biomarkers of TAM resistance as measured periodically for 3 years or until relapse, whichever comes first
Retrospective data on the predictive value of resistance-inducing genes

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Wake Forest University Health Sciences

Collaborators

National Cancer Institute (NCI)

Investigators

  • Study Chair: Steven A. Akman, MD, Wake Forest University Health Sciences

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

May 1, 2007

Primary Completion (Actual)

March 1, 2009

Study Completion (Actual)

June 1, 2012

Study Registration Dates

First Submitted

May 9, 2009

First Submitted That Met QC Criteria

May 9, 2009

First Posted (Estimate)

May 12, 2009

Study Record Updates

Last Update Posted (Actual)

August 1, 2017

Last Update Submitted That Met QC Criteria

July 31, 2017

Last Verified

September 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CDR0000547204
  • P30CA012197 (U.S. NIH Grant/Contract)
  • CCCWFU-74B07
  • CCCWFU-IRB00002657

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Breast Cancer

Clinical Trials on gene expression analysis

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in United Arab Emirates

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

3
Subscribe