Effects of Cyclosporin A Therapy Combined with Steroids and Angiotensin Converting Enzyme Inhibitors on Childhood IgA Nephropathy

To evaluate the effects of cyclosporin A (CyA) on clinical outcome and pathologic changes in children with IgA nephropathy (IgAN), we retrospectively evaluated 14 children (mean age 8.9+/-2.9 yr; eight males, six females) who were treated with CyA and steroids. The starting dose of CyA was 5 mg/kg per day, and the drug level was maintained at 100-200 ng/mL. The mean CyA level was 183.8+/-48.3 ng/mL (range 120.7-276.0 ng/mL) and the mean duration of CyA therapy was 10.9+/-1.9 months (range 8-12 months). After CyA therapy the mean 24 hr urinary protein excretion declined from 107.1+/-35.1 mg/m2/hr to 7.4+/-2.4 mg/m2/hr (P<0.001) and serum albumin increased from 3.3+/-0.6 g/dL to 4.3+/-0.3 g/dL (P