Efficacy of low-dose daily versus alternate-day prednisolone in frequently relapsing nephrotic syndrome: an open-label randomized controlled trial

Background While patients with frequently relapsing nephrotic syndrome (FRNS) are initially treated with long-term alternate-day prednisolone, relapses and adverse effects are common. In an open-label randomized controlled trial, we compared the efficacy of therapy with low-dose daily to standard alternate-day prednisolone in reducing relapse rates over 12-month follow-up. Methods Consecutive patients, aged 2-18 years, with FRNS were included. Following therapy of relapse, prednisolone was tapered to 0.75 mg/kg on alternate days. Stratifying for steroid dependence, patients were randomly assigned to prednisolone at 0.2-0.3 mg/kg daily or 0.5-0.7 mg/kg alternate day for 12 months. Relapses were treated with daily prednisolone, followed by return to intervention. Primary outcome was the incidence of relapses. Proportion with therapy failure ([greater than or equal to] 2 relapses in any 6 months or significant steroid toxicity) and sustained remission, cumulative prednisolone intake and adverse events were evaluated. Results Patients receiving daily prednisolone (n = 30) showed significantly fewer relapses than those on alternate-day therapy (n = 31) (0.55 relapses/person-year versus 1.94 relapses/person-year; incidence rate ratio 0.28; 95% CI 0.15, 0.52). Daily therapy was associated with higher rates of sustained remission at 6 months (73.3 versus 48.4%) and 1 year (60 versus 31.6%; log rank p = 0.013), lower rates of treatment failure at 6 months (3.3 versus 32.8%) and 1 year (6.7 versus 57.4%; p < 0.0001), and lower prednisolone use (0.27 ± 0.07 versus 0.39 ± 0.19 mg/kg/day; p = 0.003). Three and two patients need to receive the study intervention to enable sustained remission and prevent treatment failure, respectively. Conclusions In patients with FRNS, daily administration of low-dose prednisolone is more effective than standard-dose alternate day therapy in lowering relapse rates, sustaining remission, and enabling steroid sparing.
Author(s): Menka Yadav [sup.1] , Aditi Sinha [sup.1] , Priyanka Khandelwal [sup.1] , Pankaj Hari [sup.1] , Arvind Bagga [sup.1] Author Affiliations: (Aff1) 0000 0004 1767 6103, grid.413618.9, Division of [...]