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Lymph Node Identification in Skin Malignancy Using ICG Transcutaneously Study — LIMIT  

Malignant Melanoma Clinical Trial

Official title:
A Diagnostic Sensitivity Study Comparing Intradermal ICG and NIRFI With Intradermal Technetium 99m and Traditional Lymphoscintigraphy for Transcutaneous Identification of Sentinel Lymph Nodes in Malignant Melanoma

Clinical Trial Summary

A diagnostic sensitivity study comparing intradermal indocyanine green (ICG) and near infrared fluorescence imaging (NIRFI) with intradermal technetium 99m and traditional lymphoscintigraphy (LS) for transcutaneous identification of sentinel lymph nodes (SLN) in malignant melanoma - a prospective Phase II clinical study in a single center.

Clinical Trial Description

Switzerland has the highest rate of new melanomas in Europe (19.2 per 100,000). Melanomas have the worst prognosis of all skin cancers. The current treatment depends on the histological diagnosis after a biopsy and is primarily related to the tumor thickness (Breslow Score), the tumor cells in division (mitosis rate), the substance defect of the skin (ulceration), the occurrence of regression, and the age of the patients. The initial treatment is performed by surgical removal with a safety margin of macroscopically healthy skin around the tumor. If the tumor thickness is more than 1 mm or more than 0.7 mm associated with a high mitosis rate in younger patients, ulcerations, regression or Clark Level IV / V, then current melanoma guidelines suggest that the patient undergoes sentinel lymph node biopsy (SLKB) as this is most likely the first site where metastases spread. Merkel cell carcinoma is a very aggressive, neuroendocrine skin tumor with a mortality rate of about 33% after 3 years. Due to the frequent lymphatic metastases, SLNB is highly recommended in all patients in order to better assess their prognosis. The gold standard technique to identify SLKs is to inject the radioisotope Technetium-99m around the primary tumor into the skin. The patient is then scanned to determine the position of the SLK after approximately 30 and 120 minutes. Other teams have attempted to identify transcutaneous SLK with ICG and NIRFI, but have concluded that ICG fluorescence technique is not reliable in patients with high BMI or a primary tumor with lymph drainage in the axillary lymph node region. This study aims to evaluate a medical device that uses an improved technology compared to previous studies (stereoscopic 3D high definition for both fluorescence and visible light imaging). The investigators hope is that by applying similar principles SLKs can be identified through the use of transcutaneous fluorescent dye injections and NIRFI. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03545334
Study type Interventional
Source University Hospital Inselspital, Berne
Contact
Status Completed
Phase N/A
Start date September 1, 2017
Completion date October 31, 2020
View Details
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