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FLT PET in Measuring Treatment Response in Patients With Newly Diagnosed Estrogen Receptor-Positive, HER2-Negative Stage I-III Breast Cancer

Stage IIIA Breast Cancer Clinical Trial

Official title:
Imaging Early Response of ER+, HER2- Breast Cancer to Aromatase Inhibitor (AI) +/- Ovarian Suppression (OS) Therapy With [18F]Fluorothymidine (FLT) PET

Clinical Trial Summary

This clinical trial studies fluorine F 18 fluorothymidine (FLT) positron emission tomography (PET) in measuring treatment response in patients with newly diagnosed estrogen receptor (ER)-positive, human epidermal growth factor receptor 2 (HER2)-negative stage I-III breast cancer. Comparing results of diagnostic procedures done before and during hormone therapy may help doctors predict a patient's response to treatment and help plan the best treatment.

Clinical Trial Description

PRIMARY OBJECTIVES:

I. Measure the effect of a short course of endocrine therapy on primary breast cancer metabolism and proliferation by measuring changes in serial FLT PET measures pre and post a short course of endocrine therapy.

SECONDARY OBJECTIVES:

I. Compare changes in imaging measures to tissue measures of response, in particular antigen identified by proliferation-related Ki-67 antigen (Ki-67), in the pre-therapy biopsy versus the post-therapy surgical specimen.

II. Correlate imaging measures to measures of gene expression from pre and post therapy assays to determine if there are molecular changes associated with early response to therapy.

OUTLINE:

Patients undergo FLT PET at baseline and 1-6 weeks after the start of treatment. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01928186
Study type Interventional
Source University of Washington
Contact
Status Completed
Phase N/A
Start date September 2011
Completion date July 20, 2015
View Details
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