Abstract
C3 glomerulopathy is a relatively new clinical entity that represents a challenge both to diagnose and to treat. As new therapeutic agents that act as complement inhibitors become available, many with an oral formulation, a better understanding of this disease and of the underlying complement dysregulation driving it has become increasingly useful to optimize patient care. Moreover, recent advances in research have clarified the role of complement in other glomerular diseases in which its role was less established, namely in immune-complex membranoproliferative glomerulonephritis (IC-MPGN), ANCA-vasculitis, IgA nephropathy, and idiopathic membranous nephropathy. Complement inhibitors are being studied in adult and adolescent clinical trials for these indications. This review summarizes current knowledge and future perspectives on every aspect of the diagnosis and management of C3 glomerulopathy and elucidates current understanding of the role of complement in this condition and in other glomerular diseases in children. An overview of ongoing trials involving therapeutic agents targeting complement in glomerular diseases is also provided.
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The authors thank Prof Christoph Licht for conceptual help in designing Fig. 3.
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MV received funding from the Associazione per la cura del Bambino Nefropatico ONLUS and has served on advisory boards for Novartis, Apellis, Roche, Achillion, Retrophin and participated in the C3G clinical trials by Chemocentrix and Achillion. NK is member of the advisory board of Roche and participant in the clinical trials in C3G by Chemocentryx and Achillion. RL and FD: no funding or conflict of interest to report. JMT receives royalties from Alexion Pharmaceuticals, Inc. and is a consultant for Q32 Bio, Inc., a company developing complement inhibitors. He also holds stock and will receive royalty income from Q32 Bio, Inc. This does not influence the content of this manuscript.
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Vivarelli, M., van de Kar, N., Labbadia, R. et al. A clinical approach to children with C3 glomerulopathy. Pediatr Nephrol 37, 521–535 (2022). https://doi.org/10.1007/s00467-021-05088-7
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DOI: https://doi.org/10.1007/s00467-021-05088-7