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Prospective Clinical Study to Identify Secondary Sentinel Lymph Nodes in Patients With N1/N2b Oral Cavity or H&N Skin Cancers Using Patent Blue V and Indocyanine Green Dyes
Sponsor: Centre Hospitalier Universitaire Vaudois
Summary
Head and neck (H\&N) cancer has a poor prognosis and high morbidity with \~50% survival and frequent treatment resistance. Most deaths result from local or loco-regional progression rather than distant metastasis. Lymphatic spread to regional lymph nodes (RLNs), especially with extra-nodal extension (ENE), is a key predictor of poor outcomes. Current imaging techniques often miss micrometastases, leading to extensive but sometimes unnecessary neck treatments. Sentinel lymph node biopsy (SLNB) offers a precise method to detect early spread but is not yet widely adopted. Identifying second-echelon sentinel nodes-those receiving drainage from primary or first-tier nodes-may further refine treatment. The preReDSeL study evaluates the use of dyes (indocyanine green and Patent Blue V) for detecting these nodes. Success could reduce morbidity and guide tailored surgical/radiation therapy. The follow-up ReDSeL study will assess the clinical value of these findings.
Official title: Prospective Clinical Study to Identify Secondary Sentinel Lymph Nodes in Patients With N1/N2b Oral Cavity or H&N Skin Cancers Using Patent Blue V and Indocyanine Green Dyes (preReDSeL Study)
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
20
Start Date
2026-04
Completion Date
2027-04
Last Updated
2026-04-08
Healthy Volunteers
No
Interventions
Patent blue V dye injection
Patent Blue V dye is injected around the primary tumor.
Indocyanine green dye injection
Indocyanine green dye is injected inside the metastatic lymph node(s).
Locations (2)
Centre Hospitalier Universitaire Vaudois (CHUV)
Lausanne, Canton of Vaud, Switzerland
CHUV
Lausanne, Canton of Vaud, Switzerland