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  • Title: The efficacy of rituximab in adult frequently relapsing minimal change disease.
    Author: King C, Logan S, Smith SW, Hewins P.
    Journal: Clin Kidney J; 2017 Feb; 10(1):16-19. PubMed ID: 28638601.
    Abstract:
    BACKGROUND: Corticosteroids are the basis of treatment for nephrotic syndrome due to minimal change disease (MCD), but 25% of patients have frequently relapsing nephrotic syndrome (FRNS) and 30% become steroid dependent. Prolonged use of conventional immunosuppressants causes significant toxicity. Rituximab (RTX) is now included in guidelines for childhood MCD. Evidence for use in adult MCD is limited. We describe a single-centre experience of RTX use in adult MCD. METHODS: Outcomes of all adult MCD patients treated with RTX for FRNS between 2008 and 2015 were retrospectively analysed. RESULTS: Thirteen patients received RTX; 11/13 had childhood-onset MCD. All had FRNS and 10 were steroid dependent. Eleven patients experienced one or more major treatment side effect from conventional therapy. At the time of RTX treatment, six patients were relapsing. All entered remission after RTX. The median length of follow-up after the first RTX treatment was 20 months (range 6-85). After RTX, the rate of relapse was reduced from 4 to 0.4/year (Wilcoxon signed rank P ≤ 0.05). Seven patients relapsed after RTX after a median of 10 months (range 1-11). All seven relapsing patients were successfully re-treated with RTX and none developed RTX-resistant nephrosis. The median number of courses of RTX per patient was 1 (range 1-5). The number of additional immunosuppressants, steroid dependency and antihypertensive agents were also reduced. At the last follow-up, two patients remained on low-dose steroids. No RTX-related adverse events were observed. CONCLUSION: RTX is safe and effective in adults with FRNS due to MCD. The median rate of relapse is significantly reduced following RTX treatment and additional immunosuppressant exposure is minimized.
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