A Study of IBI363 in Subjects With Advanced Melanoma

Inclusion criteria

• Histologically and/or cytologically confirmed, unresectable, locally advanced or metastatic melanoma (according to the American Joint Committee on Cancer (AJCC) 8th edition staging III-IV). Progression or recurrence after at least first-line systemic standard treatment.
• At least one measurable lesion (target lesion) per RECIST v1.1.
• Eastern Cooperative Oncology Group Performance Status (ECOG PS) of 0 or 1.
• Life expectancy of 3 months or more.
• Female subjects of childbearing age or male subjects whose partners are female subjects of childbearing age agree to strictly adopt effective contraceptive measures throughout the entire treatment period and 6 months after the treatment period.

Exclusion criteria

• Pregnant or lactating subjects, or subjects who plan to conceive before, during, or within 6 months after the last dose of the study drug.
• Active or symptomatic central nervous system metastasis.
• At baseline (within 7 days before the first administration of the study drug), there were any hematological abnormalities as follows: hemoglobin\<90 g/L; Absolute neutrophil count (ANC)\<1.5 × 109/L; Platelet count\<100 × 109/L.
• At baseline (within 7 days prior to first administration), there were any serum biochemical abnormalities as follows: Total bilirubin\>1.5 × ULN; AST or ALT\>3 × ULN; If it is tumor liver metastasis, AST or ALT\>5.0 × ULN; Serum creatinine\>1.5 × ULN or CCr\<45 mL/min, using the Cockcroft Fault formula to calculate CCr (using actual body weight); Albumin\<30 g/L.
• At baseline (within 7 days before first administration), there were any coagulation parameter abnormalities as follows: INR\>1.5 × ULN (\>3 if receiving anticoagulant therapy with stabilizer dosage) × ULN); PTT (or activated partial thromboplastin time (aPTT))\>1.5 × ULN (\>3 if receiving anticoagulant therapy with stabilizer dosage) × ULN).
• History of active thrombosis, deep vein thrombosis, or pulmonary embolism within 4 weeks prior to the first administration of the investigational drug, unless sufficient treatment has been given and the investigator believes that the condition is stable.
• Uncontrolled bleeding or known tendency to bleed.