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Endocrine Response in Women With Invasive Lobular Breast Cancer

NCT02206984 · Status: COMPLETED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 201

Last updated 2025-03-11

No results posted yet for this study

Summary

RATIONALE: Currently, adjuvant endocrine therapy often follows a "one-size-fits- all" approach, with most premenopausal women receiving tamoxifen, and most postmenopausal receiving aromatase inhibitor therapy. In current clinical practice, patients with invasive lobular carcinoma are treated no differently than patients with invasive ductal carcinoma based on the void of information specific to patients with this tumor type. Identification of a biological signal of tamoxifen and/or AI-resistance and/or fulvestrant-sensitivity in ILC patients would have dramatic implications for the future management of this breast cancer subtype.

PURPOSE: To study whether fulvestrant is more effective than anastrozole or tamoxifen in reducing Ki67 in ILC and whether that Ki67 reduction will correlate with alterations in expression of ER and ER-regulated genes. Differential Ki67 effect in this study will serve as a surrogate for outcome of ILC patients on endocrine therapy.

Primary Objective:

To determine the change from baseline to post-treatment Ki67 values in ER-positive, HER2-negative ILC tissue derived from postmenopausal women awaiting definitive surgery or further neoadjuvant treatment who are randomized to 21-24 days of neoadjuvant endocrine treatments with fulvestrant (two 250 mg IM injections given on day 1), anastrozole (1mg given orally daily), or tamoxifen (20mg given orally daily).

Conditions

Interventions

DRUG

Tamoxifen

DRUG

Anastrozole

DRUG

Fulvestrant

Sponsors & Collaborators

  • Priscilla McAuliffe

    lead OTHER

Principal Investigators

  • Priscilla McAuliffe, MD · UPMC Magee Womens Hopspital

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2015-09-30
Primary Completion
2024-07-19
Completion
2024-07-19
FDA Drug
Yes

Countries

  • United States

Study Locations

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Entities

Drugs
Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02206984 on ClinicalTrials.gov