Treatment of Advanced and Metastatic Solid Tumors With MIL97

"Dose escalation phase: The patients confirming to the eligibility criteria will be assigned to the 6 dose groups (0.01mg/kg, 0.03mg/kg, 0.1mg/kg, 0.2mg/kg, 0.3mg/kg 0.45mg/kg, respectively) based on the sequence of inclusion. Each patient will receive an intravenous infusion of MIL97 every 3 week on Day 1 of each cycle. Additional 1 or 2 dose cohorts will receive an intravenous infusion of MIL97 every 2 week on Day 1 of each cycle after last patient finishes DLT observation period.~Dose expansion phase: One or two recommended expansion doses (either Q3W or Q2W) will be selected from 6 dose groups (0.01mg/kg, 0.03mg/kg, 0.1mg/kg, 0.2mg/kg, 0.3mg/kg 0.45mg/kg) based on results of dose escalation phase. MIL97 will be administered via intravenous infusion for 60 to 90 minutes on Day 1 of each cycle."