Frontiers in endocrinology · 2026
Guiding immunotherapy based on the oxford classification activity score in IgA nephropathy.
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Nong Jingjing, Tang Yuhong, Yang Jiazhen, Wei Wenli, Su Licong, Nie Sheng, Ou Jun
Аннотация
BACKGROUND: The efficacy of Oxford classification in guiding immunotherapy management strategies remains a subject of debate. Our study aimed to explore different combinations of Oxford Classification activity scores in guiding immunotherapy for IgA nephropathy.
OBJECTIVE: We introduced a sum scores to analyze composite pathological score association with immunotherapy for proteinuria remission, aiming to further elucidate the clinical utility of renal histology in immunotherapy decisions.
METHODS: A total of 3,196 patients were diagnosed with IgA nephropathy, as confirmed by renal biopsy, between May 2018 and November 2023. However, only 2,389 patients were enrolled after the exclusion criteria were applied. The cohort included 1,211 patients receiving immunosuppressive therapy and 1,178 patients managed with supportive care. Patients with complete outcomes were selected, and the characteristics between groups were balanced using propensity score matching. We subsequently employed both Kaplan-Meier and Cox regression analyses to investigate the impact of immunotherapy on proteinuria remission. We defined SumMEC (the sum of the M, E, and C scores) as a potential immunotherapy responsiveness score. Furthermore, we conducted a subgroup analysis to explore the association between different SumMEC subgroups and the effect of immunotherapy.
RESULTS: A multivariate Cox regression analysis revealed that immunotherapy was associated with a 22% increase in proteinuria remission at 12 months in patients with IgAN (HR 1.22; 95% CI 1.07-1.40; p=0.004). Subgroup analyses demonstrated this benefit only in patients with high SumMEC scores. The effects of immunotherapy and the SumMEC score on 6-month proteinuria remission are comparable to those observed at 12 months.
CONCLUSIONS: The use of immunosuppressive agents may improve proteinuria remission in patients with IgA nephropathy. Patients with high SumMEC scores responded positively to immunotherapy.
OBJECTIVE: We introduced a sum scores to analyze composite pathological score association with immunotherapy for proteinuria remission, aiming to further elucidate the clinical utility of renal histology in immunotherapy decisions.
METHODS: A total of 3,196 patients were diagnosed with IgA nephropathy, as confirmed by renal biopsy, between May 2018 and November 2023. However, only 2,389 patients were enrolled after the exclusion criteria were applied. The cohort included 1,211 patients receiving immunosuppressive therapy and 1,178 patients managed with supportive care. Patients with complete outcomes were selected, and the characteristics between groups were balanced using propensity score matching. We subsequently employed both Kaplan-Meier and Cox regression analyses to investigate the impact of immunotherapy on proteinuria remission. We defined SumMEC (the sum of the M, E, and C scores) as a potential immunotherapy responsiveness score. Furthermore, we conducted a subgroup analysis to explore the association between different SumMEC subgroups and the effect of immunotherapy.
RESULTS: A multivariate Cox regression analysis revealed that immunotherapy was associated with a 22% increase in proteinuria remission at 12 months in patients with IgAN (HR 1.22; 95% CI 1.07-1.40; p=0.004). Subgroup analyses demonstrated this benefit only in patients with high SumMEC scores. The effects of immunotherapy and the SumMEC score on 6-month proteinuria remission are comparable to those observed at 12 months.
CONCLUSIONS: The use of immunosuppressive agents may improve proteinuria remission in patients with IgA nephropathy. Patients with high SumMEC scores responded positively to immunotherapy.