A Phase Ib/ Ⅱ Clinical Study of MIL62 in Primary Membranous Nephropathy

An intravenous (IV) infusion of 600 mg of MIL62 will be administered at Week 1，Week 3.If the treatment is effective, MIL62 will continue be administered at W25，W27.

Participants will receive Cyclosporine at a starting oral dose 3.5 mg/kg/d, divided into 2 doses, try to give every 12 hours.The dose was adjusted according to the blood concentration of cyclosporine monitored every 2 weeks ±3 days until the target blood concentration of 125\~175 ng/ mL was reached.Cyclophosphamide will be maintained for 12 months, after which the dose was reduced by about 1/3 to 1/2 of the original dose each month, and discontinued after 2 months.