Carbon Nanoparticle-Loaded Iron [CNSI-Fe(II)] in the Treatment of Advanced Solid Tumor

Inclusion Criteria

• Patients must meet all of the following criteria to be eligible:
• Understand and voluntarily sign the informed consent form (ICF), demonstrating willingness and ability to comply with all trial requirements.
• Male or female aged 18-80 years (inclusive) at the time of signing the ICF.
• Histologically or cytologically confirmed advanced solid tumors with ineffective current standard therapy (disease progression after treatment or intolerable treatment) or lack of effective standard treatment options. Eligible tumor types include colorectal cancer, pancreatic cancer, breast cancer, gastric cancer, cervical cancer, lung cancer, head and neck cancer, bile duct cancer, kidney cancer, prostate cancer, vulvar cancer, etc. Note: Patients with advanced solid tumors experiencing disease progression due to the inability to receive standard treatment for any reason or those with tumor types insensitive to existing standard treatments (e.g., pancreatic cancer, undifferentiated thyroid cancer, and sarcomas) after receiving first-line standard treatment are also eligible.
• Presence of at least one measurable lesion according to RECIST v1.1, which has not received radiation (except for lesions showing clear progression after radiation) or tissue biopsy within 7 days before the first dose.
• Lesions amenable to injection, either directly or with assistance from medical imaging.
• Eastern Cooperative Oncology Group (ECOG) performance status of 0-1 within 7 days before the first dose.
• Expected survival of ≥12 weeks.
• Adverse drug reactions (ADR) caused by previous treatments have recovered to Grade 1 or lower (except for alopecia) according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) v5.0 before screening.
• Left ventricular ejection fraction (LVEF) ≥50%.
• Within 7 days prior to the first dose, have adequate hematologic and end-organ function, with laboratory tests meeting the following criteria:
• Hematology No use of granulocyte colony-stimulating factor (G-CSF) within 14 days prior to hematology laboratory tests, and absolute neutrophil count (ANC) ≥1.5×109/L; No platelet transfusion within 14 days prior to hematology laboratory tests, and platelet count (PLT) ≥90×109/L; No blood transfusion or use of erythropoietin within 14 days prior to hematology laboratory tests, and hemoglobin (Hb) ≥90 g/L;
• Renal function Serum creatinine (Cr) ≤1.5×upper limit of normal (ULN) or calculated creatinine clearance (Ccr) ≥50 mL/min using the Cockcroft-Gault formula (only calculated if baseline Cr >1.5×ULN);
• Hepatic function Total bilirubin (TBIL) ≤1.5×ULN (≤3.0×ULN for patients with Gilbert's syndrome or liver metastases);

Aspartate aminotransferase (AST), alanine aminotransferase (ALT) and alkaline phosphatase (ALP) ≤3×ULN, patients with confirmed liver or bone metastases must meet the following criteria:

Patients with confirmed liver metastases: AST and ALT ≤5×ULN; Patients with confirmed bone metastases: ALP ≤5×ULN; Serum albumin ≥2.8 g/dL;

• Coagulation function International normalized ratio (INR) or prothrombin time (PT) and activated partial thromboplastin time (aPTT) ≤1.5×ULN; Note: For patients with injectable lesions in the skin and/or subcutaneous tissue who are receiving anticoagulant therapy, prolonged INR, PT and aPTT are allowed, as bleeding can be controlled by direct pressure application, as determined by the investigator.
• Women of childbearing potential (WOCBP) must have a negative pregnancy test result within 7 days before the first dose and agree to use effective contraception or practice abstinence during the study treatment period and for 6 months after the end of the study treatment. In addition, female patients must be non-lactating and agree not to donate eggs during this period. Note: WOCBP refers to non-sterilized women who have experienced menarche but have not undergone surgical sterilization (hysterectomy or bilateral oophore