Omission of Axillary Lymph Node Dissection in Case of Tumor Spread to Lymph Nodes in the Armpit in Breast Cancer

Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorKarolinska Institutet

About this trial

SENOMAC-ULTRA enrols patients who are planned for upfront surgery for a breast cancer that has spread to lymph nodes in the armpit, and that have been detected already prior to surgery by imaging, e.g. ultrasonography. In this situation, a full axillary lymph node dissection, removing more than 10 lymph nodes from the arm pit, is unnecessarily extensive in about half of the patients. More extensive surgery leads to a risk for arm lymphedema and functional problems with the arm and shoulder region, which should be avoided if not beneficial for diagnosis or prognosis. This trial seeks to ascertain that less extensive surgery, performed by only removing the first lymph node/s in the armpit (the sentinel lymph node/s) and the known metastatic lymph nodes (targeted axillary dissection, TAD), offers non-inferior survival outcomes to a full axillary lymph node dissection.

Eligibility criteria

Qualifiers

Patients with primary invasive breast cancer clinical stage II-III

Palpable or non-palpable axillary metastases visible by ultrasound (other imaging accepted if confirmatory ultrasound is performed) and confirmed by fine needle aspiration or core biopsy

Written informed consent

Age ≥ 18 years

Disqualifiers

Distant metastases

Ipsilateral metastases in internal mammary, infra- or supraclavicular lymph nodes without confirmed axillary nodal involvement

Preoperative suspicion of extensive nodal involvement, i.e. locally advanced disease

Nodes fixed to each other or to neighbouring structures on palpation or imaging

Trial design

Treatments tested in this trial

  • Targeted axillary dissection
  • Axillary lymph node dissection

Treatment groups

1,380 Participants
are divided into 2 treatment groups

Locations

This trial has no locations

Sponsors and collaborators