Combination of IV Ascorbic Acid and Adebrelimab in Metastatic Colorectal Cancer

1.5g/kg/day, D1-3, every 2 weeks

Oxaliplatin 130 mg/m² d1 concurrent with Leucovorin 400 mg/m², followed by Oxaliplatin 85 mg/m² d1 followed by Bolus 5FU 400 mg/m² , followed by Infusional 5FU 2400 mg/m² over 46 hours, every 2 weeks with or without bevacizumab 5mg/kg, every 2 weeks

20mg/Kg intravenously every 3 weeks