Patterns of Clinical Response to Eculizumab in Patients With C3 Glomerulopathy.
Am J Kidney Dis
; 72(1): 84-92, 2018 07.
Article
em En
| MEDLINE
| ID: mdl-29429752
ABSTRACT
BACKGROUND:
Cases reports and small series of patients with C3 glomerulopathy have reported variable efficacy of eculizumab. STUDYDESIGN:
Case series of C3 glomerulopathy. SETTING &PARTICIPANTS:
Pediatric and adult patients with C3 glomerulopathy treated with eculizumab between 2010 and 2016 were identified through the C3 glomerulopathy French registry database, and a questionnaire was sent to participating French pediatric and adult nephrology centers, as well as one pediatric referral center in Québec, Canada.OUTCOMES:
Global or partial clinical renal response. MEASUREMENTS Evolution of serum creatinine and proteinuria values.RESULTS:
26 patients (13 children/adolescents) were included. 22 (85%) patients had received steroids, plasma exchange, or immunosuppressive therapy before eculizumab, and 3 of them had rapid progression of their kidney disease despite treatment. At the initiation of eculizumab therapy, 11 (42%) patients had chronic kidney disease, 7 (27%) had rapidly progressive disease, and 3 (12%) required dialysis. After eculizumab treatment (median duration, 14 months), 6 (23%) patients had a global clinical response; 6 (23%), a partial clinical response; and 14 (54%), no response. Compared with those who had a partial clinical or no response, patients who had a global clinical response had lower estimated glomerular filtration rates, a more rapidly progressive course, and more extracapillary proliferation on kidney biopsy. Age, extent of renal fibrosis, frequency of nephrotic syndrome, low serum C3 and C3 nephritic factor and elevated soluble C5b-9 concentrations, or complement gene variants did not differ between responders and nonresponders.LIMITATIONS:
Retrospective design without a control group, relatively small number of cases, inclusion of pediatric and adult cases.CONCLUSIONS:
Eculizumab appears to be a potential treatment for patients with crescentic rapidly progressive C3 glomerulopathy. Its benefit in patients with non-rapidly progressing forms seems to be limited.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Complemento C3
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Glomerulonefrite Membranoproliferativa
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Anticorpos Monoclonais Humanizados
Tipo de estudo:
Diagnostic_studies
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Observational_studies
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Prognostic_studies
Limite:
Adolescent
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Adult
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Aged
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Child
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article