Clinical trial Recruiting at 1 site Interventional Ages 18 to 75 Women only

Omitting axillary surgery after chemotherapy for certain breast cancer patients

Official title: Breast Carcinoma T1-T2-T3 / cN +: Axillary Conservation of Lymph Nodes in the Presence of Micro Metastases in Sentinel Lymph Node, in cN- After Neoadjuvant Chemotherapy - Studio NEONOD 2

Run by Istituto Clinico Humanitas · NCT04019678 · Data updated 2026-11-12

This study is testing if women with certain breast cancer can skip surgery on their lymph nodes after chemotherapy and still do just as well.

More Breast Cancer trials

Quick facts

Study typeInterventional
Ages18 Years to 75 Years
SexWomen only
Enrollment850 (estimated)
SponsorIstituto Clinico Humanitas
Academic / other
Drugs / interventionschemotherapy
Locations1 site (Rozzano, MI)
StatusRecruiting
StartedJune 21, 2019
Main results expectedJune 21, 2027
Study endsJune 21, 2027
Registry record updatedApril 19, 2021
Trial IDNCT04019678 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are women aged 18 to 75 with infiltrating breast carcinoma and positive axillary lymph nodes who have undergone neoadjuvant chemotherapy and show negative lymph nodes post-treatment.

Probably not a fit

Patients with inflammatory breast cancer, in situ breast cancer, or those with significant co-morbidities that prevent follow-up or adjuvant therapy may 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 clinical trial investigates whether patients with micro metastatic sentinel lymph nodes can safely avoid axillary lymph node intervention after receiving neoadjuvant chemotherapy. It is a multicentric study conducted in Italy, comparing outcomes between patients who undergo axillary treatment and those who do not, based on their sentinel lymph node status post-chemotherapy. Participants will be monitored for five years to assess survival rates and recurrence risks, with a focus on ensuring that omitting surgery does not negatively impact patient outcomes.

Why it matters

Potential benefit: If successful, this approach could reduce the need for invasive surgeries in breast cancer patients, leading to improved quality of life and fewer complications.

How similar studies have gone: While similar approaches have been explored, this specific methodology of omitting axillary dissection in this patient population is relatively novel and has not been extensively tested.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age: 18 ≤75 years
2. Breast carcinoma with infiltrating histotype
3. Tumor size: cT1 - cT2 - cT3
4. Positive axillary lymph nodes (cN +) at the initial diagnosis by clinical, ultrasound and cyto-microhistology evaluation
5. Neoadjuvant chemotherapy performed
6. Negative axillary lymph nodes (cN-) from the NAC by clinical and ultrasound assessment
7. Absence of distant metastases (M0)
8. Negative medical history for previous infiltrating breast cancer

Exclusion Criteria:

1. Current pregnancy or lactation status
2. Inflammatory breast cancer
3. In situ breast cancer
4. Synchronous contralateral breast cancer
5. Co-morbidity and/or medical disorder precluding any adjuvant therapy
6. Co-morbidity and/or medical/mental disorder making impossible making a regular follow-up
7. Other cancers in the previous 3 years (except forcarcinoma in situ of the uterine cervix, basalioma, squamous cell carcinoma or non-melanoma skin cancer)

Where it's running

  • Istituto Clinico Humanitas
    Rozzano, Mi, Italy
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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.