A Fluorescent Tumor Marking Agent, Tozuleristide, for Imaging Oral Cavity Squamous Cell Cancer and High-Grade Oral Cavity Dysplasia During Surgery

Inclusion Criteria

• Adult subjects age >= 18 years (yr)
• Subjects must have suspected or confirmed oral cavity dysplasia or cT1-4 squamous cell carcinoma for which surgical excision is deemed clinically indicated by the treating physician. Histology confirmation not required prior to surgery
• Able to provide written informed consent
• If of child-bearing potential, agree to the continued use of 2 reliable forms of contraception from study enrollment through 30 days after receiving the study product. Male subjects must agree to use 2 reliable methods of contraception simultaneously for 30 days after receiving the study product if their partner is of child-bearing potential
• Available for all study visits and able to comply with all study requirements

Exclusion Criteria

• Known or suspected sensitivity to indocyanine green
• In the opinion of the treating physician, subject has received photosensitizing medication that could interfere or confound study results
• Any current medications with the potential to generate fluorescence or photochemical reaction
• Enrolled in any other ongoing study
• Currently lactating or breastfeeding
• Positive pregnancy test or planning to become pregnant within 30 days (d) of receiving tozuleristide
• Any current condition, including psychological and social situations which, in the opinion of the investigator, would impact adversely on the subject or the interpretation of the study data
• Creatinine clearance < 60 mL/min
• Aspartate aminotransferase (AST) > 1.5 x upper limit of normal (ULN)
• Alanine aminotransferase (ALT) > 1.5 x ULN
• Bilirubin > 1.5 x ULN