Pre-Surgical Intervention for Targeted Therapies for Breast Cancer

January 7, 2021 updated by: Katherine D. Crew, Columbia University

Feasibility of Pre-Surgical Intervention Studies for Evaluating Targeted Therapies for Breast Cancer

The purpose of this study is to determine the feasibility of a short term administration of a targeted therapy (i.e., anastrozole) in women with newly diagnosed early invasive or non invasive breast cancer during the interval between their breast biopsy and surgery. Anastrozole is a form of hormonal therapy which is part of the standard treatment for hormone sensitive breast cancer in postmenopausal women. This clinical model is being used to evaluate the biologic effects of this drug on a specific molecular pathway called the PI3K/AKT signaling pathway.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Several clinical models are being explored for use in the phase I/II evaluation of targeted therapies for breast cancer. Biological markers can be measured in early stage invasive cancers in a presurgical model involving a short term intervention. In this model, women with newly diagnosed early invasive breast cancer receive a study drug during the interval between diagnostic breast biopsy and surgical resection. Tumor tissue obtained from the biopsy and surgical specimens are used to measure pre and post treatment molecular markers, respectively. The main advantages of this model include the ability to obtain direct information on molecular response in tumor tissue and elucidate drug mechanisms of action, the large patient population to draw from with early stage breast cancer, and the lack of unnecessary invasive procedures.

We plan to conduct a pilot study of 10 postmenopausal women with newly diagnosed estrogen receptor (ER) positive invasive or non invasive breast cancer who will receive oral anastrozole 1mg daily for two weeks in the interval between diagnostic breast biopsy and definitive breast surgery. Patients will be identified by the breast surgeon or mammographer performing the breast biopsy. Patients with histologically confirmed ER+ invasive or non invasive breast cancer will be recruited by the medical oncologist and will start anastrozole two weeks prior to their scheduled surgery. The primary objective of this study is to demonstrate the feasibility of this presurgical model for evaluating targeted therapies for breast cancer. Secondary endpoints include changes in tissue levels of the proliferation marker Ki67 and proteins involved in PI3K/AKT signaling.

Study Type

Interventional

Enrollment (Actual)

10

Phase

  • Not Applicable

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
    • New York
      • New York, New York, United States, 10032
        • Columbia University 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

21 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • Histologically-confirmed operable ER+ and/or PR+ invasive breast cancer or ductal carcinoma in situ (DCIS), who undergo core needle biopsy followed by surgical excision at least 2 weeks after enrollment
  • Postmenopausal status defined as cessation of menses for >1 year or FSH > 20 mIU/mL (within the past month)
  • Age ≥ 21 years
  • No prior chemotherapy, radiation therapy, or surgery within 6 months of study entry
  • Signed informed consent

Exclusion Criteria:

  • Treatment with other investigational drugs within 6 months of study entry
  • Other serious intercurrent medical illness

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

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Presurgical oral anastrozole
1mg daily for two weeks in the interval between diagnostic breast biopsy and definitive breast surgery.
Drug: Anastrozole
1mg PO daily for two weeks prior to scheduled surgery
Other Names:
  • Arimidex

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Subjects That Completed Oral Anastrozole 1mg Daily for Two Weeks in the Interval Between Diagnostic Breast Biopsy and Definitive Breast Surgery
Time Frame: Two weeks
The number of subjects who complete oral anastrozole for the length of the study is analyzed. The subjects receive oral anastrozole 1mg daily for two weeks in the interval between the biopsy and the surgery.
Two weeks

Collaborators and Investigators

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

Sponsor

Columbia University

Collaborators

Avon Foundation

Investigators

  • Principal Investigator: Katherine Crew, MD, Columbia University

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

July 1, 2007

Primary Completion (Actual)

August 1, 2009

Study Completion (Actual)

August 1, 2009

Study Registration Dates

First Submitted

October 28, 2009

First Submitted That Met QC Criteria

October 29, 2009

First Posted (Estimate)

October 30, 2009

Study Record Updates

Last Update Posted (Actual)

January 11, 2021

Last Update Submitted That Met QC Criteria

January 7, 2021

Last Verified

January 1, 2021

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • AAAC0553

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Undecided

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.

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