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  • Title: Successful management of post-transplant focal segmental glomerulosclerosis with therapeutic plasma exchange and rituximab.
    Author: Koutroutsos K, Charif R, Moran L, Moss J, Cook T, Roufosse C, Pusey C, Taube D, Loucaidou M.
    Journal: Clin Exp Nephrol; 2019 May; 23(5):700-709. PubMed ID: 30637591.
    Abstract:
    BACKGROUND: Post-transplant focal segmental glomerulosclerosis (FSGS) is associated with renal allograft loss. Currently, optimal treatment remains controversial. METHODS: The aim of our study was to examine the efficacy and safety of therapeutic plasma exchange (TPE), and rituximab (RTX), in the management of post-transplant FSGS. The treatment protocol consisted of RTX and monthly cycles of 5 plasma exchanges for 6 months. We treated 10 transplant recipients with biopsy-proven post-transplant FSGS. Lastly, we compared the studied group to a historic control group of nine patients with post-transplant FSGS. RESULTS: 9 out of 10 patients achieved remission after the conclusion of treatment (4 complete and 5 partial), while 1 patient did not respond to treatment. During the follow-up period, there was one graft loss and one patient died while in remission from unrelated complications. There was a significant reduction in mean uPCR between diagnosis (517.4 ± 524.2 mg/mmol) and last follow-up (87 ± 121.6 mg/mmol) in the patients with sustained remission (p = 0.026). There was no significant decline in eGFR in the eight relapse-free responders at the end of follow-up. (54.4 ± 16.7 from 49.8 ± 20.4 ml/min) (p = 0.6) An increased response rate to the combined TPE and RTX treatment was demonstrated, when compared to a historic control group of nine patients with post-transplant FSGS, as only five out of nine patients achieved remission (two complete and three partial) in that group. CONCLUSIONS: In this study, treatment with TPE and RTX appears to be safe, well tolerated and effective in the management of patients with post-transplant FSGS.
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