A Study of an Alternative Treatment Approach (Preoperative Radiotherapy, Then Mastectomy, Then Immediate Reconstruction Surgery) in People With T4 Breast Cancer

NCT ID: NCT05412225

Last Updated: 2026-02-11

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

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-06-06

Study Completion Date

2026-06-06

Brief Summary

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The purpose of this study to test an alternative treatment approach that involves giving participants radiotherapy before their mastectomy (preoperative radiotherapy) and performing immediate reconstruction surgery at the time of mastectomy. The immediate reconstruction surgery is called an immediate autologous reconstruction (IR) and is different than the standard reconstruction surgery people with T4 breast cancer have. IR is a surgical procedure where immediately following your mastectomy, the surgeon takes tissue from another part of your body and uses it to re-create your breast. The standard reconstruction surgery occurs later and can be done with an implant or tissue from your body.

The main purpose of this study to find out if the alternative treatment approach shown above is feasible. The study will see how safe this alternative treatment approach is compared with the standard treatment approach.

Detailed Description

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Conditions

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Breast Cancer Invasive Breast Cancer

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Participants with clinical T4 biopsy-proven breast cancer

Participants with clinical T4 biopsy-proven breast cancer with no evidence of distant metastases who demonstrate a complete or partial response to standard neoadjuvant chemotherapy/NAC and desire immediate autologous reconstruction/IR will be eligible to enroll.

Group Type EXPERIMENTAL

Pre-neoadjuvant radiotherapy (NART) biopsy

Intervention Type DIAGNOSTIC_TEST

Participants will undergo pre-NART core biopsy guided by post-NAC MRI to the area of residual enhancement or to the previously biopsied cancer if no residual enhancement remains

Neoadjuvant radiotherapy

Intervention Type RADIATION

After biopsy, participants will undergo neoadjuvant radiotherapy/NART

Unilateral total mastectomy with axillary lymph node dissection

Intervention Type PROCEDURE

At 2-6 weeks after completion of NART, participants will undergo unilateral MRM (total mastectomy with axillary lymph node dissection), with resection of all involved breast skin. Skin-sparing mastectomy will not be permitted. All patients will also undergo simultaneous unilateral autologous-based breast reconstruction with DIEP, ms-TRAM, or latissimus dorsi flap.

Interventions

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Pre-neoadjuvant radiotherapy (NART) biopsy

Participants will undergo pre-NART core biopsy guided by post-NAC MRI to the area of residual enhancement or to the previously biopsied cancer if no residual enhancement remains

Intervention Type DIAGNOSTIC_TEST

Neoadjuvant radiotherapy

After biopsy, participants will undergo neoadjuvant radiotherapy/NART

Intervention Type RADIATION

Unilateral total mastectomy with axillary lymph node dissection

At 2-6 weeks after completion of NART, participants will undergo unilateral MRM (total mastectomy with axillary lymph node dissection), with resection of all involved breast skin. Skin-sparing mastectomy will not be permitted. All patients will also undergo simultaneous unilateral autologous-based breast reconstruction with DIEP, ms-TRAM, or latissimus dorsi flap.

Intervention Type PROCEDURE

Other Intervention Names

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NART MRM

Eligibility Criteria

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Inclusion Criteria

* Female sex, aged ≥18 years, with biopsy-proven invasive breast cancer
* cT3-4 cN0-3 tumor
* Partial or complete response to NAC on imaging and clinical examination using the Response Evaluation Criteria in Solid Tumors (RECISTv1.1) definition.
* Desire to undergo autologous reconstruction and assessed to be an appropriate candidate by a plastic and reconstructive surgeon
* Able to read and understand English

Exclusion Criteria

* Prior ipsilateral breast cancer
* Bilateral breast cancer
* Pregnant
* Stage IV disease at presentation
* Stable disease or progressive disease after NAC
* Surgically unresectable breast disease
* BMI \>40
* Prior history of thoracic radiotherapy
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Memorial Sloan Kettering Cancer Center

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Audree Tadros, MD

Role: PRINCIPAL_INVESTIGATOR

Memorial Sloan Kettering Cancer Center

Locations

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Memorial Sloan Kettering Basking Ridge (Limited Protocol Activities)

Basking Ridge, New Jersey, United States

Site Status RECRUITING

Memorial Sloan Kettering Monmouth (Limited Protocol Activities)

Middletown, New Jersey, United States

Site Status RECRUITING

Memorial Sloan Kettering Bergen (Limited Protocol Activities)

Montvale, New Jersey, United States

Site Status RECRUITING

Memorial Sloan Kettering Cancer Center @ Suffolk-Commack (Limited protocol activity)

Commack, New York, United States

Site Status RECRUITING

Memorial Sloan Kettering Westchester (Limited Protocol Activities)

Harrison, New York, United States

Site Status RECRUITING

Memorial Sloan Kettering Cancer Center

New York, New York, United States

Site Status RECRUITING

Memorial Sloan Kettering Nassau (Limited Protocol Activities)

Uniondale, New York, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Audree Tadros, MD

Role: CONTACT

646-888-4456

Atif Khan, MD

Role: CONTACT

848-225-6334

Facility Contacts

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Audree Tadros, MD

Role: primary

646-888-4456

Audree Tadros, MD

Role: primary

646-888-4456

Audree Tadros, MD

Role: primary

646-888-4456

Audree Tadros, MD

Role: primary

646-888-4456

Audree Tadros, MD

Role: primary

646-888-4456

Audree Tadros, MD

Role: primary

646-888-4456

Audree Tadros, MD

Role: primary

646-888-4456

Related Links

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http://www.mskcc.org

Memorial Sloan Kettering Cancer Center

Other Identifiers

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22-136

Identifier Type: -

Identifier Source: org_study_id

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