Neoadjuvant Endocrine Therapy in ER-positive, HER2-negative Early Stage Breast Cancer

NCT ID: NCT05150652

Last Updated: 2026-01-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE2

Total Enrollment

8 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-02-18

Study Completion Date

2026-06-09

Brief Summary

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The goal of this study is to access whether treatment of early state estrogen-rich breast cancers with neoadjuvant endocrine therapy will result in higher rates of margin negativity on lumpectomy specimen.

Detailed Description

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Conditions

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Breast Cancer HER2-negative Breast Cancer Node-negative Breast Cancer Breast Carcinoma

Study Design

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Allocation Method

NA

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Neoadjuvant Endocrine Therapy

Participants will begin treatment with Anastrozole. If not tolerated well, participants will discontinue and begin treatment using Letrozole. If not tolerated well, participants will discontinue and begin treatment using Exemestane. If not tolerated well, participants will discontinue and begin treatment on Tamoxifen.

Group Type EXPERIMENTAL

Anastrozole 1mg

Intervention Type DRUG

Participants will take 1mg of anastrozole once daily, orally, for up to six cycles of 28 days.

Letrozole 2.5mg

Intervention Type DRUG

Participants will take 2.5mg of Letrozole once daily, orally, for up to six cycles of 28 days.

Exemestane 25 mg

Intervention Type DRUG

Participants will take 25mg of Exemestane once daily, orally, for up to six cycles of 28 days.

Tamoxifen

Intervention Type DRUG

Participants will take 20mg of Tamoxifen once daily, orally, for up to six cycles of 28 days.

Interventions

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Anastrozole 1mg

Participants will take 1mg of anastrozole once daily, orally, for up to six cycles of 28 days.

Intervention Type DRUG

Letrozole 2.5mg

Participants will take 2.5mg of Letrozole once daily, orally, for up to six cycles of 28 days.

Intervention Type DRUG

Exemestane 25 mg

Participants will take 25mg of Exemestane once daily, orally, for up to six cycles of 28 days.

Intervention Type DRUG

Tamoxifen

Participants will take 20mg of Tamoxifen once daily, orally, for up to six cycles of 28 days.

Intervention Type DRUG

Other Intervention Names

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Arimidex Femara Aromasin Soltamox

Eligibility Criteria

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Inclusion Criteria

* Pathologically confirmed invasive breast cancer, clinically stage I-II.
* Clinically lymph node negative
* Eligible for anti-endocrine treatment (per medical oncologist)
* Postmenopausal women
* Ability to understand and the willingness to sign a written informed consent document

Exclusion Criteria

* Progesterone receptor negativity
* High grade tumor
* Synchronous non-breast malignancy
* Receiving any other investigational agents that could impact the efficacy of this trial regimen
* History of allergic reactions attributed to compounds of similar chemical or biologic composition to Anastrozole, Letrozole, Exemestane, Tamoxifen or other agents used in study
* Uncontrolled intercurrent illness
* Medical, psychiatric or other condition and/or social situations that would limit compliance with study requirements
Minimum Eligible Age

18 Years

Maximum Eligible Age

99 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Irada Ibrahim-zada

OTHER

Sponsor Role lead

Responsible Party

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Irada Ibrahim-zada

Assistant Professor

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Irada Ibrahim-zada, MD

Role: PRINCIPAL_INVESTIGATOR

University of Kentucky

Locations

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University of Kentucky Markey Cancer Center

Lexington, Kentucky, United States

Site Status

Countries

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United States

References

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McDonald HG, Cassim EB, Harper MM, Burke EE, Marcinkowski EF, Cavnar MJ, Pandalai PK, Kim J. The Development of Investigator-Initiated Clinical Trials in Surgical Oncology. Surg Oncol Clin N Am. 2023 Jan;32(1):13-25. doi: 10.1016/j.soc.2022.07.003. Epub 2022 Nov 3.

Reference Type DERIVED
PMID: 36410913 (View on PubMed)

Other Identifiers

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MCC-21-BRE-54

Identifier Type: -

Identifier Source: org_study_id

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