nctId: NCT06347354 id: CRO-2024-15 briefTitle: Permanence of Indocyanine Green in Axillary Lymph Nodes 3 Weeks After Subdermal Injection in Patients With Breast Cancer and Metastatic Lymph Nodes acronym: FLUO overallStatus: NOT_YET_RECRUITING date: 2024-07 date: 2025-08 date: 2025-08 date: 2024-04-04 date: 2024-04-04 name: Centro di Riferimento Oncologico - Aviano class: OTHER briefSummary: In the case of a pre-operative diagnosis of ductal carcinoma in situ (DCIS), sentinel lymph node biopsy is generally not indicated whereas it is considered standard clinical practice for patients with clinical stage I-II infiltrating breast cancer who have clinically negative axillary lymph nodes or clinically suspicious lymph nodes with negative needle aspiration findings. It is not uncommon that, in patients with ductal carcinoma in situ at preoperative diagnosis, there may be an upgrade on definitive histological examination due to the identification of foci of infiltration (about one-fifth of cases), requiring axillary lymph node biopsy in a second surgery. Prospective studies have shown that the sentinel lymph node identification rate after recent breast-conserving surgery is suboptimal. With regard to the false negative rate (FNR), several studies demonstrated that it could be associated with different techniques used for lymph node identification. Lymph node biopsy by Indocyanine green (ICG) is capable of identifying the sentinel lymph node, however, there are no data in literature on the permanence of ICG in the lymph node system. The knowledge of this data would allow the application of this method, already considered safe for the identification of the sentinel lymph node at the time of breast surgery, also in those situations in which the sentinel lymph node biopsy is postponed due to the upgrade of definitive histological diagnosis from carcinoma in situ to infiltrating/micro-infiltrating carcinoma.The main objective of this trial is to evaluate the permanence of fluorescence at the level of axillary lymph nodes 3 weeks after subcutaneous injection in patients who are candidates to radical axillary surgery. Marking the sentinel lymph node before breast surgery in cases of DCIS with risk factors could reduce the false negative rate, allowing to increase the accuracy of the procedure in identifying the lymph node potentially involved by metastatic infiltration. In addition, the identification of the sentinel lymph node in patients who are candidates to radical axillary surgery, could increase the sensitivity of the surgery in staging axillary disease and could make the lymph node exeresis more targeted, reducing the morbidity of the surgery resulting in a better outcome for the patient. conditions: Breast Cancer studyType: INTERVENTIONAL phases: NA allocation: NA interventionModel: SINGLE_GROUP primaryPurpose: OTHER masking: NONE count: 10 type: ESTIMATED name: Indocyanine green measure: Permanence of fluorescence at the level of axillary lymph nodes at 2-3 weeks after subcutaneous injection of Indocyanine Green (2.5 mg), in patients who will undergo radical axillary surgery measure: Identification of the total number of fluorescent lymph nodes measure: Differences in the qualitative assessment (intensity) of fluorescence between the removed lymph nodes: lymph nodes will be divided into group A "intense fluorescence" and group B "mild fluorescence" measure: Association between histological positivity for metastases in sentinel and non-sentinel lymph nodes measure: Association between the patient's demographic/clinical variables and the presence or absence of fluorescent lymph nodes sex: FEMALE minimumAge: 18 Years stdAges: ADULT stdAges: OLDER_ADULT facility: Centro di Riferimento Oncologico (CRO) di Aviano - IRCCS city: Aviano state: Pordenone zip: 33081 country: Italy name: Stefano Fracon, MD role: CONTACT phone: 0434659317 email: stefano.fracon@cro.it name: Samuele Massarut, MD role: CONTACT email: smassarut@cro.it name: Stefano Fracon, MD role: PRINCIPAL_INVESTIGATOR lat: 46.07056 lon: 12.59472 hasResults: False