Comparing robot-assisted and open nipple-sparing mastectomy with immediate breast reconstruction

A Prospective Multicenter Randomized Clinical Trial: Robot-assisted vs. Open Nipple-sparing Mastectomy With Immediate Breast Reconstruction (ROM) Trial

Not applicable Interventional Yonsei University · NCT05490433

This study is testing if a robot-assisted surgery for breast cancer can be as safe and effective as traditional surgery for women needing nipple-sparing mastectomy and immediate breast reconstruction.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment790 (estimated)
Ages19 Years to 70 Years
SexFemale
SponsorYonsei University Academic / other
Locations17 sites (Changwon and 16 other locations)
Trial IDNCT05490433 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the oncological outcomes of robot-assisted nipple-sparing mastectomy (RNSM) compared to conventional nipple-sparing mastectomy (CNSM) in women with breast cancer. It aims to provide high-level evidence regarding the effectiveness and safety of RNSM, particularly in the context of immediate breast reconstruction. The study involves a multicenter randomized design, focusing on patients with breast cancer stages 0 to 3A who are scheduled for therapeutic mastectomy. The trial is conducted by the Korea Robot-Endoscopy Minimal Access Breast Surgery Study Group to standardize and teach this advanced surgical technique.

Who should consider this trial

Good fit: Ideal candidates are adult women over 19 years old with breast cancer stages 0-3A who desire immediate breast reconstruction.

Not a fit: Patients who are not candidates for immediate breast reconstruction or have advanced breast cancer (stage IIIB-IV) will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved surgical outcomes and recovery for breast cancer patients undergoing mastectomy and reconstruction.

How similar studies have performed: Previous studies have shown that robot-assisted surgical techniques can be feasible, but this specific comparison of RNSM and CNSM is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adult women (≥19 years) scheduled to undergo therapeutic mastectomy for breast cancer who desire immediate breast reconstruction (IBR).
* Breast cancer classified as clinical TNM stage 0 to IIIA, based on preoperative evaluation according to the 8th edition of the AJCC anatomic staging system.
* Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.

Exclusion Criteria:

* Patients scheduled for breast-conserving surgery or deemed ineligible for immediate breast reconstruction (IBR).
* Clinical evidence of nipple or skin involvement on preoperative evaluation.

  * Pregnant or breastfeeding women.
  * Tumors consisting exclusively of lobular carcinoma in situ (LCIS).
  * Paget's disease of the breast.
  * Inflammatory breast cancer.
  * Male breast cancer.
  * Clinical stage IIIB-IV disease on preoperative evaluation.
  * breast size equal to or larger than cup E
  * History of breast cancer or bilateral breast cancer (including metachronous or synchronous disease).
  * History of non-breast malignancy, with the exception of non-melanoma skin cancer or papillary/follicular thyroid carcinoma.
  * Special histologic subtypes of breast tumors (e.g., phyllodes tumor, sarcoma, lymphoma).
  * Age \>70 years.
  * American Society of Anesthesiologists (ASA) physical status classification grade ≥4.
  * Inability to provide informed consent.
  * History of prior chest radiotherapy.
  * Patients who have not undergone preoperative testing for hepatitis B virus (HBV), hepatitis C virus (HCV), and human immunodeficiency virus (HIV), which is required for liability insurance coverage.

Where this trial is running

Changwon and 16 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 Cancer Classified as TNM Stage 0-IIIaBreast cancer
Last reviewed 2026-06-15 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.