International Urology and Nephrology

, Volume 45, Issue 3, pp 795–802

Our experience with rituximab therapy for adult-onset primary glomerulonephritis and review of literature

  • Wai Yew Kong
  • Ramyasuda Swaminathan
  • Ashley Irish
Nephrology - Original Paper

Abstract

Background

B cell-targeted immunosuppression with rituximab as primary treatment or when conventional therapy is contraindicated or unsuccessful can induce remission in idiopathic membranous nephropathy (IMN). We explored the efficacy and safety of rituximab therapy in an adult population with IMN and other primary glomerulonephritides.

Method

This study is a single-centre retrospective case review of 24 adult patients who received rituximab (RTX) for IMN (n = 11), minimal change disease (MCD, n = 7), focal segmental glomerulosclerosis (FSGS, n = 4), and membranoproliferative glomerulonephritis (MPGN, n = 2). Outcomes included the proportion of patients with complete and partial remission, frequency of relapse, the amount of post-RTX immunosuppression, and toxicity.

Results

The median follow-up for all patients was 31.5 months (IQR: 15.0–44.0). Rituximab therapy induced remission in 19/24 (79.2 %) patients (IMN: 63.6 %, MCD: 100 %, FSGS: 75 %, and MPGN: 100 %). Disease recurrence in patients with ≥3 relapses pre-RTX therapy (MCD, n = 6 and FSGS, n = 1) decreased from 37.0 to 19.6 events per 1,000 patient-months. All patients with steroid maintenance, discontinued or achieved at least a 50 % dose reduction at 3.0 months (IQR: 1.5–8.0) post-treatment. One patient ceased CSA in addition to a 50 % steroid dose reduction 13 months post-RTX. Rituximab was well tolerated with a single serious infection (4.2 %) responsive to treatment.

Conclusions

Rituximab induced remission in IMN comparable with published reports but had an additional benefit in inducing remission in other common glomerulonephritides. Additional randomized studies are needed to confirm its potential therapeutic benefit and optimal dosing for adult-onset primary glomerulonephritis.

Keywords

B lymphocyte Primary glomerulonephritis Rituximab 

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Copyright information

© Springer Science+Business Media, B.V. 2012

Authors and Affiliations

  • Wai Yew Kong
    • 1
    • 3
  • Ramyasuda Swaminathan
    • 1
    • 2
  • Ashley Irish
    • 1
  1. 1.Department of Nephrology and TransplantationRoyal Perth HospitalPerthAustralia
  2. 2.School of Medicine and PharmacologyUniversity of Western AustraliaPerthAustralia
  3. 3.Division of Nephrology, Department of MedicineUniversity Malaya Medical CentreKuala LumpurMalaysia

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