Omission of ALND in Breast Cancer Patients With Axillary pCR

NCT05939830 | Recruiting DMC

• 1 other identifier: SrLNB
• Study Type: interventional
• Target: 92
• Locations: 1 country
• Sites: 1

Brief Summary

This prospective, single-arm, phase II trial studies axillary lymph node dissection (ALND) to see if it can be safely omitted in breast cancer patients with axillary pathological complete response (pCR) after neoadjuvant systemic therapy (NST). Breast cancer patients with biopsy-proven positive axillary lymph nodes at initial diagnosis, and converted to negative after NST, which is confirmed by Stained region Lymph Node Biopsy(SrLNB), will be enrolled in the study. In other words, a total of 92 patients will be exempted from ALND after SrLNB, and afterwards complete regional node irradiation (RNI) including the axilla. They will also undergo adjuvant chemotherapy, targeted therapy, endocrinotherapy after surgery. These patients will be followed up in the next three years for local-regional recurrence and long-time survival outcome.

Conditions

Axillary Lymph Node Dissection; Pathological Complete Response; Neoadjuvant Systemic Therapy; Breast Cancer; Axillary Lymph

Keywords

Breast Cancer; Neoadjuvant Systemic Therapy; Axillary Surgery

Outcome Measures

Primary Outcomes (1)

• iDFS: invasive Disease-Free Survival after breast surgery

  Time interval from the surgery to invasive local-regional recurrence, distant metastasis, contralateral invasive breast cancer, or death from any cause.

  Up to 3 years after surgery

Secondary Outcomes (4)

• LRR: Local-Regional Recurrence after breast surgery

  Up to 3 years after surgery

• BCRL: Breast Cancer Related Lymphedema

  Up to 3 years after surgery

• Quality of life (QoL)

  Up to 3 years after surgery

• Patient-reported arm morbidity

  Up to 3 years after surgery

Study Arms (1)

Omit ALND

EXPERIMENTAL

Omitting Axillary Lymph Node Dissection (ALND) in SrLNB-proven axillary complete response patients. Finishing regional lymph node irradiation (RNI) including the axilla after surgery.

Procedure: Stained region Lymph Node Biopsy (SrLNB); Radiation: Regional lymph node radiotherapy (RNI) including the axilla

Interventions

Stained region Lymph Node Biopsy (SrLNB) PROCEDURE

Before NST, carbon nanoparticles suspension would be injected into the cortex of positive lymph nodes for staining under ultrasound guidance. Marked lymph nodes will be removed and biopsied after NST.

Omit ALND

Regional lymph node radiotherapy (RNI) including the axilla RADIATION

RNI including the axilla covers the supraclavicular region and entire axillary lymphatic drainage area (region I, II and III) ,and is at a dose of 50 Gy/25 times, with additional prophylactic irradiation of the internal breast lymphatic drainage area for eligible patients.

Omit ALND

Eligibility Criteria

• Age: 18 Years - 70 Years
• Sex: female
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Female aged between 18 and 70 years;
• Pathologically confirmed invasive breast cancer (regardless of pathological type) with a clinical stage cT1-3;
• Pathologically confirmed positive axillary lymph nodes with a clinical stage of N1-3;
• Receiving a full course of neoadjuvant therapy (including neoadjuvant chemotherapy, neoadjuvant targeted therapy, neoadjuvant immunotherapy);
• Positive axillary lymph nodes successfully stained by carbon nanoparticles injection;
• All patients are required to undergo immunohistochemical staining for Estrogen Receptor (ER), Progesterone Receptor (PR), human epidermal growth factor receptor 2 (HER2), Ki- 67 proliferation index, and further fluorescence in situ hybridization (FISH) should be performed in HER2 2+ cases;
• Preoperative clinical assessment (including physical examination, imaging, with or without nomogram assessment) suggests positive axillary lymph nodes converted to negative (ycN0);
• ECOG score 0 - 1;
• Patients voluntarily participated in this study and signed the informed consent form

You may not qualify if:

• Bilateral breast cancer;
• Breast cancer during lactation period or pregnancy;
• Physical examination or imaging examination confirmed presence of distant metastases;
• Previous history of malignant tumor;
• History of previous surgery on the affected axilla; or history of surgery affecting the function of the upper extremity;
• History of radiation therapy to the breast or chest;
• Positive incision margins for breast-conserving surgery/mastectomy;
• Positive results of intraoperative rapid freeze pathology (including isolated tumor cells and micrometastases) for SrLNB (ypN+);
• Those who unable to complete the full course of follow-up adjuvant therapy as prescribed for various reasons;
• Aspartate transaminase (AST) and alanine transaminase (ALT) ≥ 1.5 times the upper limit of normal, alkaline phosphatase（ALP） ≥ 2.5 times the upper limit of normal, total bile ≥ 1.5 times the upper limit of normal, serum creatinine ≥ 1.5 times the upper limit of normal; Left Ventricular Ejection Fractions (LVEF) \< 50% in cardiac ultrasound;
• Severe coagulation dysfunction, serious systemic disease, or uncontrolled infection;
• Without personal freedom and independent civil capacity;
• Those with mental disorders, addictions, who were not eligible for enrollment in the judgment of the investigator.

Sponsors & Collaborators

• The First Affiliated Hospital with Nanjing Medical University: lead

Study Sites (1)

The First Affiliated Hospital of Nanjing Medical University

Nanjing, China

RECRUITING

Related Publications (1)

• Ma L, Chen R, Wang M, Li X, Zheng R, Wang L, Ding J, Yao H, Gong Y, Wang Y, Sheng X, Wang J, Zha X. Omission of axillary lymph node dissection in patients with breast cancer with axillary pathological complete response confirmed by stained region lymph node biopsy after neoadjuvant systemic therapy (SrLNB study): study protocol for a single-arm, single-centre, phase-II trial. BMJ Open. 2025 Mar 31;15(3):e092563. doi: 10.1136/bmjopen-2024-092563.

  PMID: 40164484 DERIVED

MeSH Terms

Conditions

Breast Neoplasms

Condition Hierarchy (Ancestors)

Neoplasms by Site; Neoplasms; Breast Diseases; Skin Diseases; Skin and Connective Tissue Diseases

Central Study Contacts

Jue Wang, MD

CONTACT

+862568306360; wangjue200011@njmu.edu.cn

Lingjun Ma, MD

CONTACT

+8613186693728; malingjun@stu.njmu.edu.cn

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Prof.

Study Record Dates

• First Submitted: July 1, 2023
• First Posted: July 11, 2023
• Study Start: September 11, 2023
• Primary Completion: July 1, 2025
• Study Completion (Estimated): July 1, 2026
• Last Updated: December 30, 2024

Record last verified: 2024-12

Data Sharing

• IPD Sharing: Will not share

Locations

CN (1)