Correlation Between Fluorodeoxyglucose (FDG) and FLT Uptake and Gene-Expression Oncotype Assay in Patients With Breast Cancer

May 30, 2008 updated by: Tel-Aviv Sourasky Medical Center
In the current study FDG (Fluorodeoxyglucose) uptake, FLT uptake (F18-Fluoro-3'-deoxythymidine) and their ratios will be correlated with the risk score results of the Oncotype gene-expression assay in patients with clinically negative nodal disease planned for surgical removal of the tumor.

Study Overview

Status

Unknown

Conditions

Detailed Description

Several publications have addressed the role of PET imaging for biological characterization of breast cancer. A modest but significant correlation was reported between tumor grading and FDG uptake. Few studies reported a positive correlation between SUV and the Ki-67 labeling index of malignant breast tumors. Others have correlated p53 expression in breast cancer and FDG uptake. F18-Fluoro-3'-deoxythymidine (FLT) has been developed as a PET marker for cellular proliferation has been developed for imaging cell proliferation and findings correlate strongly with the Ki-67 labeling index in breast cancer. A 10-minute FLT-PET scan acquired two weeks after the end of the first course of chemotherapy, has been shown in two recent studies to be useful for predicting longer-term efficacy of chemotherapy regimens for women with breast cancer.

In the current study FDG and FLT uptake and their ratios will be correlated with the risk score results of the Oncotype gene-expression assay in patients with clinically negative nodal disease planned for surgical removal of the tumor. It is our hypothesis that since high uptake of these tracers implies aggressive behavior and rapid tumor growth, it might well be that patients with high risk score on Oncotype will have high uptake of the PET tracers and those with low risk score will show low-intensity uptake values. If this will be the case, it might well be that in patients with non-conclusive oncotype results (intermediate score) FDG and FLT uptake measurement will allow further dichotomy to 1. Patients with intermediate score on Oncotype and high uptake of the PET tracers, suggestive of aggressive behavior and 2. Patients with intermediate score on Oncotype and low uptake of the PET tracers suggesting a less aggressive behavior.

Study Type

Observational

Enrollment (Anticipated)

100

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

  • Israel
      • Tel Aviv, Israel, 64239
        • Department of Nuclear Medicine, Tel Aviv Sourasky Medical 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 86 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Sampling Method

Non-Probability Sample

Study Population

Newly diagnosed patients with breast cancer, clinically nodal negative, prior to surgery and/or treatment

Description

Inclusion Criteria:

  • Newly diagnosed patients with breast cancer
  • clinically nodal negative
  • prior to surgery and/or treatment
  • age over 18 years

Exclusion Criteria:

  • Age under 18
  • Pregnancy
  • Previous therapy for breast cancer
  • Clinical or histological evidence of nodal involvement or other proven metastatic sites

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

Cohorts and Interventions

Group / Cohort
1
Patients with newly diagnosed breast cancer. Clinically nodal negative.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Correlation between FDG and FLT uptake and hystological findings and Oncotype results
Time Frame: One year after imaging
One year after imaging

Secondary Outcome Measures

Outcome Measure
Time Frame
Clinical outcome
Time Frame: A year after imaging
A year after imaging

Collaborators and Investigators

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

Sponsor

Tel-Aviv Sourasky Medical Center

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

June 1, 2008

Primary Completion (Anticipated)

June 1, 2009

Study Completion (Anticipated)

June 1, 2010

Study Registration Dates

First Submitted

May 28, 2008

First Submitted That Met QC Criteria

May 30, 2008

First Posted (Estimate)

June 2, 2008

Study Record Updates

Last Update Posted (Estimate)

June 2, 2008

Last Update Submitted That Met QC Criteria

May 30, 2008

Last Verified

May 1, 2008

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • TASMC-08-EE-108-CTIL

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

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Ecuador

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe