Clinical trial Recruiting at 1 site Interventional Ages 21 to 80 Women only

Tailoring axillary surgery for breast cancer patients

Official title: Feasibility of Tailoring Axillary Surgery Based on the Molecular Subtype and Nodal Burden of Breast Cancer Patients- SentiOMIT and SentiMACRO Trial

Run by KK Women's and Children's Hospital · NCT06259513 · Data updated 2026-11-12

This study is testing if some early breast cancer patients can skip certain surgeries to remove lymph nodes, which might help them avoid unnecessary complications and costs.

Quick facts

Study typeInterventional
Ages21 Years to 80 Years
SexWomen only
Enrollment350 (estimated)
SponsorKK Women's and Children's Hospital
Government
Drugs / interventionschemotherapy
Locations1 site (Singapore)
StatusRecruiting
StartedFebruary 6, 2024
Main results expectedFebruary 28, 2033
Study endsDecember 31, 2033
Registry record updatedFebruary 14, 2024
Trial IDNCT06259513 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are female patients aged 55 and older with unifocal breast cancer, small tumor size, and favorable molecular characteristics.

Probably not a fit

Patients with advanced breast cancer, known nodal disease, or those requiring neoadjuvant chemotherapy will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates whether axillary surgery can be safely omitted in breast cancer patients based on their molecular subtype and nodal burden. It focuses on early breast cancer patients with favorable characteristics who typically undergo unnecessary axillary operations, which can lead to additional costs and complications. The trial aims to enroll 350 patients, with a pilot study involving 50 patients to assess the feasibility of omitting sentinel lymph node biopsy or axillary lymph node dissection. The goal is to reduce surgical morbidities without compromising oncological outcomes.

Why it matters

Potential benefit: If successful, this approach could significantly reduce surgical complications and improve the quality of life for breast cancer patients.

How similar studies have gone: There is emerging evidence suggesting that similar approaches to omitting axillary surgery in select breast cancer patients may be effective, indicating potential for success.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* female patients aged \>/=55 years old
* unifocal cancer on imaging
* breast tumour size based on imaging of \</=3cm
* no evidence of axillary adenopathy on imaging
* patients with strongly positive ER and PR and negative HER2 on biopsy
* grade 1-2 tumour on core biopsy
* patient who opt for mastectomy

Exclusion Criteria:

* patients with T3/T4 or stage IV disease, patients with preoperative known N+ disease, bilateral breast cancers, patients planned for neoadjuvant chemotherapy, patients with other malignancies.

Where it's running

  • KK Women's and Children's Hospital
    Singapore, Singapore
    Recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.