Using carbon dye to mark lymph nodes before chemotherapy in breast cancer patients

Feasibility of Carbon Dye Marking of Axillary Lymph Nodes Before Neoadjuvant Chemotherapy in Patients With Breast Cancer

Not applicable Interventional Gaziosmanpasa Research and Education Hospital · NCT05735795

This study is testing whether using carbon dye to mark lymph nodes before chemotherapy can help improve surgery results for breast cancer patients with advanced disease.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment50 (estimated)
Ages18 Years and up
SexFemale
SponsorGaziosmanpasa Research and Education Hospital Government
Drugs / interventionschemotherapy
Locations1 site (Istanbul)
Trial IDNCT05735795 on ClinicalTrials.gov

What this trial studies

This study investigates the feasibility of marking axillary lymph nodes with carbon dye prior to administering neoadjuvant chemotherapy in patients with locally advanced breast cancer. The approach aims to improve the accuracy of lymph node evaluation and reduce false-negative rates during subsequent surgical procedures. By utilizing targeted axillary dissection, the study seeks to enhance surgical outcomes for patients who initially present with axillary lymph node metastases. The methodology involves identifying and marking lymph nodes that are known to contain metastatic disease before treatment begins.

Who should consider this trial

Good fit: Ideal candidates for this study are patients with locally advanced breast cancer who have confirmed metastases to the axillary lymph nodes and are scheduled for neoadjuvant chemotherapy.

Not a fit: Patients who have undergone previous axillary surgery or those diagnosed by excisional biopsy may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could lead to more accurate surgical interventions and better outcomes for breast cancer patients with lymph node involvement.

How similar studies have performed: Previous studies have shown that targeted axillary dissection can reduce false-negative rates in similar patient populations, indicating a promising approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with locally advanced breast cancer known to have metastases to the axillary lymph nodes at baseline and referred for neoadjuvant chemotherapy will be included in the study.

Exclusion Criteria:

* diagnosis by excisional biopsy
* previous axillary surgery
* failure to complete neoadjuvant therapy
* progression during therapy.

Where this trial is running

Istanbul

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Breast Cancerbreast cancerLymph node metastasisTargeted axillary dissectionNodal marking
Last reviewed 2026-06-13 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.