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Omitting Sentinel Node Procedure in Breast Cancer Patients Undergoing Breast Conserving Therapy

Clinically Node Negative Breast Cancer Patients Undergoing Breast Conserving Therapy: Sentinel Lymph Node Procedure Versus Follow-Up.

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02271828
Enrollment
1644
Registered
2014-10-22
Start date
2015-05-18
Completion date
2026-08-15
Last updated
2026-09-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Breast Neoplasms

Brief summary

STUDY AIM To decrease the number of breast cancer patients receiving over treatment of the axilla, in order to positively influence the axillary morbidity rate and quality of life. PRIMARY OBJECTIVE To determine whether omitting the sentinel lymph node procedure is not inferior to the current axillary staging regimen in clinically node negative breast cancer patients undergoing breast conserving therapy, in terms of regional recurrence rate. HYPOTHESIS The sentinel lymph node procedure can be safely omitted in clinically node negative breast cancer patients undergoing breast conserving therapy. This will lead to a decreased axillary morbidity rate, with a non-inferior regional recurrence-, distant-disease free- and overall survival rates.

Interventions

Sentinel lymph node procedure according to the Dutch breast cancer guideline

Sponsors

Maastricht University Medical Center
Lead SponsorOTHER
Borstkanker Onderzoek Groep
CollaboratorNETWORK
Dutch Cancer Society
CollaboratorOTHER
Maastricht University
CollaboratorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Female * Aged 18 years or older * Pathologically confirmed invasive breast carcinoma * A clinical T1-2 tumor * Will be treated with lumpectomy and whole breast radiotherapy * Clinically node negative status: no signs of axillary lymph node metastases at physical examination and preoperative axillary ultrasound (or negative cyto-/histopathology) * Written informed consent

Exclusion criteria

* Clinically node positive pre-operative * Bilateral breast cancer * Evidence of metastatic disease * History of invasive breast cancer * Previous treatment of the axilla with surgery or radiotherapy (except surgery for hidradenitis suppurativa or for other superficially located skin lesions, such as naevi) * Pregnant or nursing * Other prior malignancies within the past 5 years (except successfully treated basal cell and squamous cell skin cancer, carcinoma in situ of the cervix or carcinoma in situ of the ipsilateral or contralateral breast) or unsuccessfully treated malignancies \> 5 years before randomization * Unable or unwilling to give informed consent

Design outcomes

Primary

MeasureTime frameDescription
Regional recurrence rateUp to ten yearsRegional recurrence is defined as tumour recurrence and as residual tumour that became clinically apparent in ipsilateral axillary, infraclavicular and supraclavicular lymph nodes (pathologically proven).

Countries

Netherlands

Contacts

PRINCIPAL_INVESTIGATORMarjolein L Smidt, MD, PhD

Maastricht University Medical Centre, Maastricht, the Netherlands

PRINCIPAL_INVESTIGATORHans JW de Wilt, MD, PhD

Radboud University Medical Centre, Nijmegen, the Netherlands

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 3, 2026