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https://doi.org/10.1007/s00467-022-05633-y
Copy DOIPublication Date: Aug 1, 2022 | |
Citations: 2 | License type: NO-CC CODE |
BackgroundAs there are no large-scale reports of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) mRNA vaccination in patients with nephrotic syndrome using immunosuppressive agents, we conducted the prospective study.MethodsSARS-CoV-2 mRNA vaccines were administered to patients with nephrotic syndrome receiving immunosuppressive agents. The titers of SARS-CoV-2 spike protein receptor–binding domain antibodies were measured before and after vaccination. We evaluated factors associated with antibody titers after vaccination and analyzed adverse events.ResultsWe enrolled 40 patients and evaluated vaccine immunogenicity in 35 of them. Seroconversion (> 0.8 U/mL) was achieved in all patients, and the median antibody titer was 598 U/mL (interquartile range, 89–1380 U/mL). Patients using mycophenolate mofetil (MMF) showed lower antibody titers than those who were not (median: 272 U/mL vs. 2660 U/mL, p = 0.0002), and serum immunoglobulin G (IgG) levels showed a weak linear relationship with antibody titers (R2 = 0.16). No breakthrough infections were noted. Three patients (7.5%) suffered from a relapse of nephrotic syndrome (2 and 3 days, respectively, after the first dose and 8 days after the second dose), two of whom had a history of relapse within 6 months before the vaccination.ConclusionsThe SARS-CoV-2 mRNA vaccine was immunogenic in patients with nephrotic syndrome using immunosuppressive agents, although the use of MMF and low levels of serum IgG were associated with lower antibody titers after vaccination. Patients with high disease activity may experience a relapse of nephrotic syndrome after vaccination.Graphical abstractA higher resolution version of the Graphical abstract is available as Supplementary information Supplementary InformationThe online version contains supplementary material available at 10.1007/s00467-022-05633-y.
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