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Sentinel Lymph Node After Neoadjuvant Chemotherapy in Breast Carcinoma

NCT03630913 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 385

Last updated 2022-04-22

No results posted yet for this study

Summary

Sentinel lymph node dissection (SLND) after NAC, aimed to reduce the rate of unnecessary axillary lymphadenectomy, is not a standard of care in case of patient with previously involved node before NAC because of a too high false negative rate (FNR).

Clinical consequences of FNR of SLND after NAC are currently unknown. Consequently, contrary to adjuvant setting, a risk of SLND false negative case after NAC is not acceptable.

GANEA3 aims to evaluate the results of an innovative multiparametric strategy combining (1) an identification before chemotherapy of a lymph node involvement using a metal clip and then its analysis after treatment, (2) the analysis of sentinel lymph node (SLN) after NAC, and (3) analysis of biological parameters of breast tumor before and after NAC, to predict axillary status after NAC. This will identify patients with initial lymph node involvement who could benefit from SLN after NAC without additional axillary dissection with a very low FNR (≤1%).

The most "pathological" metastatic lymph node will be identified with a metal clip under ultrasound. They will then receive a NAC before breast and axillary surgery. An assessment of the NAC response at the breast and axillary will be performed by imagery. Then, all patients undergo the resection of the tagged axillary node with the metal clip, SLN detection and biopsy and a complementary axillary lymphadenectomy.

Conditions

Interventions

PROCEDURE

Tagged axillary metastatic node

First, initially metastatic lymph node is tagged with a metal clip under sonography. Then, patients receive NAC before surgery. Breast surgery (conservative or radical) and axillary surgery are performed during the same procedure, 4 to 6 weeks after completion of NAC. SLN isotope detection is performed with or without blue dye. All patients undergo the resection of the tagged axillary node, SLN biopsy and a complementary axillary lymphadenectomy.

Sponsors & Collaborators

  • Direction Générale de l'Offre de Soins

    collaborator OTHER_GOV

  • Institut Cancerologie de l'Ouest

    lead OTHER

Principal Investigators

  • JEAN-MARC CLASSE, MD · ICO NANTES

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2019-01-08
Primary Completion
2023-10-31
Completion
2023-10-31

Countries

  • France

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03630913 on ClinicalTrials.gov