Phase I/II Clinical Trial of NP41 for Cranial Nerve Fluorescence Imaging

Inclusion Criteria: 1. Enhanced brain MRI with or without cranial CT confirms a diagnosis of tumor in the anterior skull base, the middle cranial fossa, or the posterior cranial fossa. Structural images, DTI sequences and 3D-CISS sequences confirm that the tumor is adjacent to the cranial nerve or the cranial nerve will be exposed during the neurological surgery. 2. The body weight is within ±20% of standard body weight \[0.7×(height cm-80)\]kg; 3. The preoperative laboratory examination parameters of heart, lung, liver, kidney and blood are all in the normal range; 4. Be able to understand the potential risks and benefits of the clinical trial, and sign a written informed consent. Exclusion Criteria: 1. Preoperative hepatorenal insufficiency: ALT or AST increased ≥ 2 times than the upper limit of normal range; serum creatinine \> 2.0 mg/ dL (177 μmol/L) or glomerular filtration rate \> 30 ml/min×1.73 m2; 2. Positive reaction in the allergy test, or allergic constitution (such as allergic to two or more foods/drugs, or known to be allergic to protein or to this polypeptide); 3. Preoperative imaging data (enhanced MRI) are incomplete; 4. Serious primary diseases involving important organs; 5. Mentally or physically disabled patients; 6. Alcohol abuse or long-term medication may affect the drug metabolism; 7. According to the judgment of the investigator, the potential intolerance to the drug (such as weak or severe malnutrition); 8. Primary or secondary cranial nerve dysfunction, such as facial paralysis, hearing loss caused by otitis media, etc. 9. Female patients undergoing neurosurgery during pregnancy or lactation.