Using a fluorescent dye to improve breast-conserving surgery outcomes in breast cancer patients

Surgical Outcome of Breast Conserving Surgery Using Indocyanine Green Fluorescence in Breast Cancer Patients After Preoperative Chemotherapy: a Prospective Study

Not applicable Interventional National Cancer Center, Korea · NCT06780735

This study is testing a special dye to see if it can help doctors find hard-to-locate breast tumors better during surgery for breast cancer patients.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment128 (estimated)
Ages18 Years and up
SexFemale
SponsorNational Cancer Center, Korea Government
Drugs / interventionschemotherapy
Locations1 site (Goyang-si, Gyeonggi-do)
Trial IDNCT06780735 on ClinicalTrials.gov

What this trial studies

This clinical trial investigates the use of indocyanine green (ICG), a fluorescent dye, to enhance the localization of non-palpable breast lesions in patients undergoing breast-conserving surgery (BCS) after neoadjuvant chemotherapy. Traditional localization methods have limitations, particularly for patients with larger breasts, and ICG aims to provide a safer and more effective alternative. The study will assess the margin-positive rate using this innovative localization technique, potentially improving surgical outcomes for breast cancer patients.

Who should consider this trial

Good fit: Ideal candidates are adults over 18 years old with locally advanced breast cancer who are eligible for breast-conserving surgery after neoadjuvant chemotherapy.

Not a fit: Patients who require total mastectomy or have no residual mass on imaging may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could lead to improved surgical precision and reduced rates of cancer recurrence in breast cancer patients.

How similar studies have performed: While the use of ICG in surgical settings has shown promise, this specific application in breast cancer surgery is relatively novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* The Patient with locally advanced breast cancer who is eligible for breast-conserving surgery after receiving neoadjuvant chemotherapy
* Aged over 18 years old
* ECOG performance status: 0 or 1
* The patients with written informed consent

Exclusion Criteria:

* The patient who requires total mastectomy after receiving neoadjuvant chemotherapy
* The patient with no residual mass on ultrasonography or only with microcalcifications
* Pregnant or lactating patient
* The patient with a disability to understand and provide consent
* The patient with severe allergic history to indocyanine green
* Iodine-sensitive patient

Where this trial is running

Goyang-si, Gyeonggi-do

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 NeoplasmsBreast CancerIndocyanine greenBreast conserving surgeryBreast cancerneoadjuvant chemotherapyTumor LocalizationNear-Infrared Fluorescence Imaging
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.