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22.03.2020 | Original article

Efficacy of body weight vs body surface area-based prednisolone regimen in nephrotic syndrome

Zeitschrift:
Clinical and Experimental Nephrology
Autoren:
Biswanath Basu, Suman Bhattacharyya, Shilpita Barua, Abhisek Naskar, Birendranath Roy
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s10157-020-01875-y) contains supplementary material, which is available to authorized users.
Biswanath Basu and Suman Bhattacharyya equally as co-first authors.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Abstract

Background

Prednisolone dosing regimen based on body surface area (BSA) or body weight (BW) in managing uncomplicated nephrotic syndrome (NS) has been a matter of controversy.

Methods

In this parallel-arm randomized clinical trial, 60 children with uncomplicated NS in relapse were randomized to receive either of two regimens. Children of BW cohort received prednisolone (2 mg/kg/day) till remission (or 6 weeks for first episode); followed by 1.5 mg/kg on alternate days for 4 weeks (or 6 weeks for first episode). Children randomized for BSA cohort received prednisolone (60 mg/m2/day) till remission (or 6 week for first episode); followed by 40 mg/m2 on alternate days for 4 weeks (or 6 weeks for first episode). The primary endpoint was 6-month relapse-free survival in the intention-to-treat population (clinical trial registry of India CTRI/2015/03/005655).

Results

The 6-month relapse-free survival rates were similar for both BSA cohort 73.33% (22/30) and BW cohort 70% (21/30) (p = 1, OR 0.19, 95% CI 0.07–0.52). Requirement of cumulative steroid to achieve initial remission (96.1 ± 57.8 vs 63.58 ± 40.2 mg/kg, p = 0.014) and over 6-month study period (104.34 ± 50.82 vs 73.88 ± 42.95 mg/kg, p = 0.015) were significantly higher in BSA cohort in comparison to BW cohort. However, time taken in achieving remission during enrolment episode in both BSA and BW groups was comparable (7 ± 1.7 vs 6.9 ± 1.4 days, p = 0.81). While both treatments were well tolerated, the number of adverse events was one and half times as common in the BSA group than BW group (37 vs. 22 events).

Conclusions

In treating children with uncomplicated NS, both BSA and BW regimens were equally effective in achieving initial remission and maintaining disease remission. Due to fewer adverse events and lesser cumulative steroid exposure with BW based regimen, it may be considered as better option over BSA regimen.

Clinical trial registry name

Clinical Trial Registry of India (CTRI/2015/03/005655)

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