alexa Corticosteroids in IgA nephropathy: a randomised controlled trial.
Nephrology

Nephrology

Journal of Nephrology & Therapeutics

Author(s): Pozzi C, Bolasco PG, Fogazzi GB, Andrulli S, Altieri P,

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Abstract BACKGROUND: IgA nephropathy is progressive in most cases and has no established therapy. In this randomised trial, we assessed the efficacy and safety of a 6-month course of steroids in this disorder. METHODS: Between July, 1987, and September, 1995, we enrolled 86 consecutive patients from seven renal units in Italy. Eligible patients had biopsy-proven IgA nephropathy, urine protein excretion of 1.0-3.5 g daily, and plasma creatinine concentrations of 133 micromol/L (1.5 mg/dL) or less. Patients were randomly assigned either supportive therapy alone or steroid treatment (intravenous methylprednisolone 1 g per day for 3 consecutive days at the beginning of months 1, 3, and 5, plus oral prednisone 0.5 mg/kg on alternate days for 6 months). The primary endpoint was deterioration in renal function defined as a 50\% or 100\% increase in plasma creatinine concentration from baseline. Analyses were by intention to treat. FINDINGS: Nine of 43 patients in the steroid group and 14 of 43 in the control group reached the primary endpoint (a 50\% increase in plasma creatinine) by year 5 of follow-up (p<0.048). Factors influencing renal survival were vascular sclerosis (relative risk for 1-point increase in score 1.53, p=0.0347), female sex (0.22, p=0.0163), and steroid therapy (0.41, p=0.0439). All 43 patients assigned steroids completed the treatment without experiencing any important side-effects. INTERPRETATION: A 6-month course of steroid treatment protected against deterioration in renal function in IgA nephropathy with no notable adverse effects during follow-up. An increase in urinary protein excretion could be a marker indicating the need for a second course of steroid therapy.
This article was published in Lancet and referenced in Journal of Nephrology & Therapeutics

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