This phase II trial studies how well targeted silica nanoparticles work in imaging lymph nodes in patients with melanoma or oral cavity squamous cell that has come back (recurrent) and/or is newly-diagnosed. During surgery, it can be difficult to visualize nodes with cancer called sentinel lymph nodes. Targeted silica nanoparticles can be used to detect disease that has spread to local/regional nodes and allow the surgeon to remove the sentinel lymph nodes without harming normal lymph nodes.
Study sponsor and potential other locations can be found on ClinicalTrials.gov for NCT02106598.
PRIMARY OBJECTIVES:
I. Compare the proportion of excised sentinel lymph nodes (SLNs) identified by technetium Tc-99m (99mTc) sulfur colloid with the proportion of excised SLNs identified by cRGDY-PEG-Cy5.5-C dots (efficacy endpoint).
II. Assess the false negative rate, dividing the number of patients with cancer-positive nodes not
detected by cRGDY-PEG-Cy5.5-C dots with those harboring at least one cancer-positive node,
with or without cRGDY-PEG-Cy5.5-C’ dot positivity (efficacy endpoint).
SECONDARY OBJECTIVES:
I. Determine the proportion of lymph nodes detected by cRGDY-PEG-Cy5.5-C dots only, 99mTc-sulfur colloid (SC) only, and neither mapping modality.
II. Determine the patient-level detection rate for 99mTc-SC and cRGDY-PEG-Cy5.5-C dots (i.e. the proportion of patients in whom at least one lymph mode was detected by each modality).
III. Determine the patient-level rate of identifying at least one cancer-positive node by cRGDY-PEG-Cy5.5-C dots referenced to the number of patients with at least one cancer-positive node found at surgery by any method.
IV. Determine the proportion of patients in whom the surgical approach or extent of dissection was altered as a result of cRGDY-PEG-Cy5.5-C dots visualization
V. To monitor for adverse reactions to the non-radioactive particle probe (safety endpoint).
VI. To assess whether signal foci visualized optically correspond to nodes or lymphatic channels.
VII. Correlate optical signal with tumor burden assessments.
OUTLINE:
Before or during surgery, patients receive fluorescent cRGDY PEG-Cy5.5 C dots intradermally (ID) or via intramucosal or periareolar injections.
After completion of study, patients are followed up at 2 weeks.
Lead OrganizationMemorial Sloan Kettering Cancer Center
Principal InvestigatorHilda E Stambuk