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Review: 3 to 7 months of prednisone is more effective than 2 months in children with steroid responsive nephrotic syndrome
  1. Brian T Steele, MD
  1. McMaster University Hamilton, Ontario, Canada

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 QUESTION: In children with steroid responsive nephrotic syndrome (SRNS), what is the optimal corticosteroid regimen?

    Data sources

    Studies were identified by searching Medline (1966 to July 1998), EMBASE/Excerpta Medica (1988 to July 1998), and the Cochrane Controlled Trials Register (1998); scanning reference lists of relevant articles, nephrology textbooks, and proceedings of scientific meetings; and contacting investigators.

    Study selection

    2 reviewers independently selected studies if they were randomised or quasirandomised controlled trials, involved children who were 3 months to 18 years of age and had initial or subsequent episodes of SRNS, compared different regimens of prednisone or other corticosteroid agents, and reported ⩾6 months of follow up data.

    Data extraction

    2 reviewers independently extracted data on setting, publication year, number of patients in each group, dose and duration of treatments, study methods, and outcome (the primary outcome was the prevention of relapse). 2 reviewers assessed the quality of study methods.

    Main results

    12 studies (868 children) met the selection criteria. In children with a first episode of SRNS, 5 studies compared 3 to 7 months of prednisone treatment (daily for 1 to 2 mo and on alternate days for 1.5 to 6 mo) with 2 months of standard treatment (prednisone, 60 mg/m2 daily for 4 weeks followed by 40 mg/m2 on 3 of 7 days). At 6 and 12 to 24 months, relapses were fewer for children who received 3 to 7 months of prednisone than for those who received standard treatment (table). Serious adverse events and number of infections did not differ between groups. In children with relapsing SRNS, 1 study showed fewer relapses for children who received daily therapy than for those who received intermittent therapy while they were on treatment (weighted relativerisk reduction [RRR] 80%, 95% CI 18% to 95%), but no difference existed by 9 months (weighted RRR 0%, CI –12% to 11%). 1 study showed that deflazacort led to fewer relapses than did prednisone at 1 year (weighted RRR 56%, CI 22% to 75%). No difference in relapse rates was seen between alternate day prednisone and intermittent prednisone (1 study), intravenous and oral steroids (1 study), and single and divided doses of prednisolone (1 study).

    Relapse rates for prednisone for 3 to 7 months v 2 months in children with the steroid responsive nephrotic syndrome*


    In children with a first episode of steroid responsive nephrotic syndrome, prolonged treatment with alternate day prednisone for 3 to 7 months leads to fewer relapses than standard 2 month treatment.


    Most clinicians accept that when the first episode of nephrotic syndrome responds to prednisone, a total of 4 to 6 weeks of daily treatment is required.1 A cushingoid face or behavioural side effects in young children may be practical limiting factors that make 4 weeks long enough for some parents rather than the slightly more desirable 6 weeks of treatment. This meta-analysis by Hodson et al challenges the common practice of then changing to alternate day prednisone and phasing it out after another 4 to 6 weeks. A lower relapse rate seems possible and certainly desirable because those who relapse often go on to have many relapses, which increases the risk for infection, thrombosis, and side effects of second line drugs.

    Children usually tolerate prolonged alternate day prednisone well, and more often it is the repeated courses of daily prednisone that ultimately contribute to serious steroid toxicity. Thus, many paediatric nephrologists will probably accept the recommendations of this review for children with their first episode of nephrotic syndrome. Further trials should be done to confirm the possible advantage of deflazacort over prednisone in children with frequently relapsing or steroid dependent nephrotic syndrome.2


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    • Source of funding: Australian Kidney Foundation.

    • For correspondence: Dr E M Hodson, Centre for Kidney Research, Royal Alexandra Hospital for Children, PO Box 3515, Parramatta, Sydney, New South Wales 2124, Australia. Fax +61 2 9845 3432.