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      Corticosteroids and ciclosporin A in idiopathic membranous nephropathy: higher remission rates of nephrotic syndrome and less adverse reactions than after traditional treatment with cytotoxic drugs.

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          Abstract

          Idiopathic membranous nephropathy, the most common cause of nephrotic syndrome in adults, has been traditionally treated with corticosteroids and cytotoxic drugs. Ciclosporin A (CsA) is used in resistant cases, but also as a first-line treatment, due to the serious side effects of cytotoxic drugs. In this study, the remission rates of nephrotic syndrome and the incidence of side effects of corticosteroids and low CsA doses are compared with those after treatment with cytotoxic drugs.

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          Most cited references10

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          Cyclosporine in patients with steroid-resistant membranous nephropathy: a randomized trial.

          A clinical trial of cyclosporine in patients with steroid-resistant membranous nephropathy (MGN) was conducted. Although MGN remains the most common cause of adult-onset nephrotic syndrome, its management is still controversial. Cyclosporine has been shown to be effective in cases of progressive MGN, but it has not been used in controlled studies at an early stage of the disease. We conducted a randomized trial in 51 biopsy-proven idiopathic MGN patients with nephrotic-range proteinuria comparing 26 weeks of cyclosporine treatment plus low-dose prednisone to placebo plus prednisone. All patients were followed for an average of 78 weeks, and the short- and long-term effects on renal function were assessed. Seventy-five percent of the treatment group versus 22% of the control group (P < 0.001) had a partial or complete remission of their proteinuria by 26 weeks. Relapse occurred in 43% (N = 9) of the cyclosporine remission group and 40% (N = 2) of the placebo group by week 52. The fraction of the total population in remission then remained almost unchanged and significant different between the groups until the end of the study (cyclosporine 39%, placebo 13%, P = 0.007). Renal function was unchanged and equal in the two groups over the test medication period. In the subsequent follow-up, renal insufficiency, defined as doubling of baseline creatinine, was seen in two patients in each group, but remained equal and stable in all of the other patients. This study suggests that cyclosporine is an effective therapeutic agent in the treatment of steroid-resistant cases of MGN. Although a high relapse does occur, 39% of the treated patients remained in remission and were subnephrotic for at least one-year post-treatment, with no adverse effect on filtration function.
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            Idiopathic membranous glomerulonephritis.

            D Cattran (2001)
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              A randomized controlled trial of prednisone in patients with idiopathic membranous nephropathy.

              We conducted a prospective randomized study in which patients with biopsy-confirmed idiopathic membranous nephropathy were assigned to receive either a six-month course of prednisone given on alternate days (45 mg per square meter of body-surface area; n = 81) or no specific treatment (n = 77). The mean duration of follow-up was 48 months. Patients in the prednisone group (median age, 46 years) entered with a mean disease duration of 15 months, a median creatinine clearance of 1.2 ml per second per 1.73 m2 (range, 0.25 to 2.6), and a median rate of urinary protein excretion of 6.8 g per day (0.3 to 26). The annual change in the corrected creatinine clearance at six months did not differ between the prednisone group and the control group (0.10 vs. 0.06 ml per second; P = 0.8), or at the last follow-up evaluation (-0.07 vs. -0.02 ml per second; P = 0.2; 95 percent confidence interval on the difference, -0.03 to 0.13). The proportion of patients with complete remission of proteinuria was also similar in the groups at 6 and 12 months and after a mean of 48 months. Outcomes were similar in the two groups with respect to progression to renal failure (3 vs. 4 patients), death (3 vs. 1 patient), complete remission of proteinuria at 36 months (16 vs. 19 patients), and a decline of 25 percent or more in the creatinine clearance at 60 months (32 vs. 25 percent of patients). A multivariate analysis, which adjusted for differences at entry in sex distribution, urinary protein excretion, and creatinine concentration, as well as other prognostic variables, failed to provide an explanation for the lack of effect of prednisone. We conclude that a six-month course of therapy in which prednisone is given on alternate days is of no benefit to patients with idiopathic membranous nephropathy.
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                Author and article information

                Journal
                Am. J. Nephrol.
                American journal of nephrology
                1421-9670
                0250-8095
                2007
                : 27
                : 3
                Affiliations
                [1 ] Department of Internal Medicine/Nephrology, University Hospitals of Patras, Greece.
                Article
                000101367
                10.1159/000101367
                17389782
                bb53bb17-06e5-4469-8c32-d55a4a87ca92
                2007 S. Karger AG, Basel
                History

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