Tonsillectomy and Immunosuppression in Caucasian Patients With High-risk IgA-nephropathy

"Patients will be able to receive the corticosteroid (CS) monotherapy or CS in combination with other immunosuppressive drugs (e.g. cyclophosphamide, mycophenolic acid) by a decision of treating physician.~CS treatment will start with intravenous or oral induction. In the first case, methylprednisolone will be administered intravenously for 1-3 days at the dosage of 500-1000 mg. Oral prednisolone will be initiated at a dose of 0.5 to 1.0 mg/kg body weight, not exceeded 60 mg/day (week 1) with a rapid decrease by 5 mg each subsequent week until a maintenance dose of 5 mg/day will be reached. Patients will receive maintenance dose for 6 to 12 months."

Tonsillectomy will be done in accordance with local clinical practice. TE has to be performed no earlier than 12 months before and no later than 12 months after the initiation of IST.