Alternative treatment for T4 breast cancer involving preoperative radiotherapy and immediate reconstruction

Feasibility of Preoperative Radiotherapy in T3 and T4 Breast Cancer Patients Who Are Responders to Neoadjuvant Chemotherapy to Allow for Immediate Reconstruction: a Prospective Study

Phase 1 Interventional Memorial Sloan Kettering Cancer Center · NCT05412225

This study is testing a new treatment for T4 breast cancer that combines radiation before surgery with immediate reconstruction to see if it can improve patient outcomes.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment60 (estimated)
Ages18 Years and up
SexFemale
SponsorMemorial Sloan Kettering Cancer Center Academic / other
Locations7 sites (Basking Ridge, New Jersey and 6 other locations)
Trial IDNCT05412225 on ClinicalTrials.gov

What this trial studies

This study tests a new treatment approach for T4 breast cancer that includes preoperative radiotherapy followed by mastectomy and immediate autologous reconstruction surgery. The goal is to evaluate the feasibility and safety of this alternative method compared to standard treatment practices. Participants will undergo neoadjuvant radiotherapy before their surgery, and the reconstruction will use tissue from another part of their body immediately after the mastectomy. The study aims to determine if this approach can improve outcomes for patients with invasive breast cancer.

Who should consider this trial

Good fit: Ideal candidates are females aged 18 and older with biopsy-proven invasive breast cancer and specific tumor characteristics.

Not a fit: Patients with prior breast cancer, stage IV disease, or those who are pregnant will not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a more effective and immediate reconstruction option for patients with T4 breast cancer.

How similar studies have performed: Other studies have explored similar approaches, but this specific combination of preoperative radiotherapy and immediate reconstruction is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
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

Where this trial is running

Basking Ridge, New Jersey and 6 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Breast CancerInvasive Breast Cancerbreast cancermastectomyMemorial Sloan Kettering Cancer Center22-136
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.