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Socioeconomic Deprivation and Kidney Transplant Outcomes 社会经济剥夺与肾移植结果
IF 5.7 2区 医学 Q1 UROLOGY & NEPHROLOGY Pub Date : 2025-11-05 DOI: 10.1016/j.ekir.2025.10.024
Lukas Ponette , Karolien Wellekens , Priyanka Koshy , Arthur Vranken , Thomas Vanhoutte , Dirk Kuypers , Maarten Naesens , Maarten Coemans

Introduction

Socioeconomic deprivation adversely affects health outcomes, including those after kidney transplantation. Retrospective studies, including 92,844 patients in the US and 19,103 and 621 in 2 UK cohorts, reported higher mortality and graft rejection among deprived individuals. The persistence of these disparities in the UK, despite having universal health care, suggests that insurance coverage alone does not eliminate inequities. Whether similar patterns exist in Belgium remains unclear.

Methods

We studied 1891 kidney transplant recipients (2004–2021) at University Hospitals Leuven, by assessing socioeconomic deprivation using the Belgian Index of Multiple Deprivation (BIMD). The outcomes were all-cause graft failure, graft failure, mortality, and rejection, analyzed with Cox and competing risks models.

Results

Socioeconomic deprivation was associated with all-cause graft failure in univariable analysis (hazard ratio [HR]: 1.07, 95% confidence interval [CI]: 1.00–1.14, P = 0.043), but not after adjustment (adjusted HR [aHR]: 1.03, 95% CI: 0.97–1.10, P = 0.315). No significant associations were observed for graft failure (aHR: 1.04, 95% CI: 0.94–1.15, P = 0.467) or mortality (aHR: 1.04, 95% CI: 0.96–1.13, P = 0.366). In contrast, rejection risk differed significantly across deprivation groups (P = 0.030), driven by higher rates of T-cell–mediated rejection (TCMR) (aHR: 1.08, 95% CI: 1.00–1.16, P = 0.036), whereas antibody-mediated rejection (AMR) showed no association (aHR: 1.00, 95% CI: 0.88–1.15, P = 0.984).

Conclusion

Socioeconomic deprivation in Belgium was associated with rejection, specifically TCMR, and univariably with all-cause graft failure. We lacked evidence of associations with graft failure or mortality separately. These findings suggest that universal health care may mitigate some adverse posttransplantation outcomes because of socioeconomic deprivation. Future studies should evaluate whether deprivation affects access to transplantation itself.
社会经济剥夺对健康结果有不利影响,包括肾移植后的健康结果。回顾性研究,包括美国92844例患者和英国2组19103例和621例患者,报告了贫困人群更高的死亡率和移植排斥反应。尽管拥有全民医疗保健,但这些差距在英国持续存在,这表明仅靠保险覆盖并不能消除不平等。比利时是否也存在类似的模式尚不清楚。方法采用比利时多重剥夺指数(BIMD)评估社会经济剥夺,对2004-2021年在鲁汶大学医院接受肾移植的1891例患者进行研究。结果是全因移植物衰竭、移植物衰竭、死亡率和排斥反应,用Cox和竞争风险模型进行分析。结果在单变量分析中,社会经济剥夺与全因移植物失败相关(风险比[HR]: 1.07, 95%可信区间[CI]: 1.00-1.14, P = 0.043),但校正后无相关(校正后的HR [aHR]: 1.03, 95% CI: 0.97-1.10, P = 0.315)。移植失败(aHR: 1.04, 95% CI: 0.94-1.15, P = 0.467)或死亡率(aHR: 1.04, 95% CI: 0.96-1.13, P = 0.366)无显著相关性。相比之下,不同剥夺组的排斥风险差异显著(P = 0.030),这是由更高的t细胞介导的排斥反应(TCMR)率(aHR: 1.08, 95% CI: 1.00 - 1.16, P = 0.036)驱动的,而抗体介导的排斥反应(AMR)没有关联(aHR: 1.00, 95% CI: 0.88-1.15, P = 0.984)。结论:比利时的社会经济剥夺与排异反应有关,特别是TCMR,并且与全因移植失败有关。我们缺乏单独与移植物衰竭或死亡率相关的证据。这些发现表明,全民医疗保健可能会减轻由于社会经济剥夺而导致的一些移植后不良后果。未来的研究应该评估剥夺是否会影响移植本身。
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引用次数: 0
Delphi Consensus on Surrogate End Points in C3 Glomerulopathy and Primary Immune Complex–Mediated Membranoproliferative Glomerulonephritis 关于C3肾小球病变和原发性免疫复合物介导的膜增生性肾小球肾炎替代终点的德尔菲共识
IF 5.7 2区 医学 Q1 UROLOGY & NEPHROLOGY Pub Date : 2025-11-05 DOI: 10.1016/j.ekir.2025.10.028
Fernando Caravaca-Fontán , Fadi Fakhouri , Christoph Licht , Matthew C. Pickering , Franz Schaefer , Edwin Wong

Introduction

C3 glomerulopathy (C3G) and primary immune complex–mediated membranoproliferative glomerulonephritis (IC-MPGN) are rare kidney diseases driven by complement dysregulation. Proteinuria is a commonly used clinical end point in trials involving these conditions. However, its recognition as a validated end point by regulatory bodies remains limited, despite growing evidence supporting its prognostic value as a surrogate biomarker for the development of kidney failure. The aim of this study was to establish consensus on the clinical relevance of proteinuria as a prognostic and treatment end point in C3G and primary IC-MPGN.

Methods

A 2-round modified Delphi process was conducted, informed by literature review and expert input. A steering committee composed of 4 European nephrologists, 1 Canadian nephrologist, and 1 European rheumatologist developed 31 statements covering the following 3 domains: (i) treatment efficacy end points, (ii) current assessment end points, and (iii) the role of proteinuria. Statements formed part of an online survey using a 4-point Likert scale, distributed to a broader panel of nephrologists and kidney pathologists across Europe.

Results

Fifty-one and 50 responses were received in rounds 1 and 2. Of the 31 statements, 29 reached consensus (≥ 75% agreement). Key consensus points included the following: (i) reduction in proteinuria preserves long-term kidney function and is a treatment goal; (ii) longitudinal monitoring of proteinuria, alongside other markers is valuable for guiding treatment; (iii) a ≥ 50% proteinuria reduction over 6 months indicates meaningful therapeutic benefit; and (iv) proteinuria < 1 g/d is associated with improved outcomes.

Conclusion

This study demonstrates consensus supporting proteinuria as a meaningful treatment end point for C3G and primary IC-MPGN.
c3型肾小球病(C3G)和原发性免疫复合物介导的膜增生性肾小球肾炎(IC-MPGN)是由补体失调引起的罕见肾脏疾病。蛋白尿是涉及这些疾病的试验中常用的临床终点。然而,尽管越来越多的证据支持其作为肾衰竭发展的替代生物标志物的预后价值,但监管机构对其作为有效终点的认可仍然有限。本研究的目的是就蛋白尿作为C3G和原发性IC-MPGN的预后和治疗终点的临床相关性达成共识。方法采用2轮修正德尔菲法,结合文献查阅和专家意见。由4名欧洲肾病学家、1名加拿大肾病学家和1名欧洲风湿病学家组成的指导委员会制定了31项声明,涵盖以下3个领域:(i)治疗疗效终点,(ii)当前评估终点,(iii)蛋白尿的作用。这些陈述构成了一项使用4分李克特量表的在线调查的一部分,该调查被分发给欧洲更广泛的肾病学家和肾脏病理学家小组。结果第1轮和第2轮分别收到51份和50份回复。31项声明中,29项达成共识(≥75%同意)。关键的共识点包括以下几点:(i)蛋白尿的减少可以保护长期肾功能,是一个治疗目标;(ii)纵向监测蛋白尿,与其他标志物一起对指导治疗有价值;(iii) 6个月内蛋白尿减少≥50%表明有意义的治疗获益;(iv)蛋白尿1 g/d与改善预后相关。结论:本研究一致支持蛋白尿作为C3G和原发性IC-MPGN有意义的治疗终点。
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引用次数: 0
Citizenship Status and Deceased Organ Donation in the USA 美国公民身份和死者器官捐献
IF 5.7 2区 医学 Q1 UROLOGY & NEPHROLOGY Pub Date : 2025-11-05 DOI: 10.1016/j.ekir.2025.10.025
Katherine Rizzolo , Jesse D. Schold , Samantha M. Noreen , Alice Toll , Neil R. Powe , Lilia Cervantes

Introduction

Noncitizens, especially those with undocumented immigration status, have major barriers to solid organ transplantation though they donate organs in the United States (US). However, the quality and use of organs donated by noncitizens has not been described. The aim of this study was to elucidate the characteristics of organs donated by noncitizens in the US.

Methods

In this cross-sectional study, we used Organ Procurement and Transplantation Network (OPTN) data examining US deceased organ donors (≥ 1 organ transplanted) between January 1, 2015 and December 31, 2020, stratified by reported citizenship status. To assess differences between groups, analysis of variance (normally distributed) or Kruskal-Wallis (nonnormally distributed) tests were used for continuous variables after testing for normality via the Shapiro-Wilk test and chi-square tests were used for categorical variables. The Benjamini-Hochberg procedure was used to adjust for multiple comparisons.

Results

Noncitizens accounted for 3.1% of the donor population from 2015 to 2020. Compared with US citizens, noncitizens were older with higher proportions of male sex and O blood type (P < .001, for all). By state, New Jersey (9.5%), Texas (6.7%), and New York (6.1%) had the highest number of noncitizen residents who were organ donors by. Deceased noncitizen donors had a much lower rate of consent for donation compared with US citizens.

Conclusion

Our study demonstrates that noncitizens are donating healthy, viable organs to the US donor pool that are largely being received by US citizens. Given that noncitizens are donating organs to US, policy initiatives are needed to improve equity in access to transplantation receipt for this population.
非公民,特别是那些无证移民身份的人,尽管他们在美国捐赠器官,但在实体器官移植方面存在主要障碍。然而,非公民捐赠器官的质量和用途尚未得到描述。本研究的目的是阐明非美国公民捐献器官的特点。在这项横断面研究中,我们使用器官获取和移植网络(OPTN)的数据,对2015年1月1日至2020年12月31日期间美国已故器官捐赠者(≥1个器官移植)进行调查,按报告的公民身份分层。为了评估组间差异,在通过Shapiro-Wilk检验检验正态性后,对连续变量使用方差分析(正态分布)或Kruskal-Wallis检验(非正态分布)检验,对分类变量使用卡方检验。采用Benjamini-Hochberg程序对多重比较进行调整。结果2015 - 2020年,非公民占献血者总数的3.1%。与美国公民相比,非美国公民年龄更大,男性比例更高,O型血比例更高(P < 0.001)。按州划分,新泽西州(9.5%)、德克萨斯州(6.7%)和纽约州(6.1%)的非公民居民是器官捐赠者的人数最多。与美国公民相比,已故非公民捐赠者的同意捐赠率要低得多。我们的研究表明,非美国公民正在向美国供体库捐赠健康、有活力的器官,这些器官大部分被美国公民接受。鉴于非公民向美国捐赠器官,需要政策举措来提高这一人群获得移植收据的公平性。
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引用次数: 0
Longitudinal Trajectories of CKD-Associated Pruritus ckd相关瘙痒的纵向轨迹
IF 5.7 2区 医学 Q1 UROLOGY & NEPHROLOGY Pub Date : 2025-11-05 DOI: 10.1016/j.ekir.2025.10.023
Marc G. Vervloet , Charlotte Tu , Sammantha Fuller , James Fotheringham , Ronald L. Pisoni , Thilo Schaufler , Despina Ruessmann , Roberto Pecoits-Filho , Angelo Karaboyas

Introduction

Chronic kidney disease (CKD)-associated pruritus (CKD-aP) is a common and distressing symptom among dialysis patients, negatively affecting patient-reported outcomes (PROs) such as sleep and mental health. Despite its high prevalence, the evolution, incidence, and long-term impact of CKD-aP remains poorly understood. This study examined the cumulative incidence of new-onset CKD-aP among patients on hemodialysis (HD), identified its key predictors, and assessed associations between CKD-aP severity and PROs.

Methods

In this prospective, multicenter cohort study, incident and prevalent HD patients from 6 European countries were followed over 18 months, with assessments every 3 months. Patients completed an electronic PRO (ePRO) survey, including the Kidney Disease Quality of Life Short Form 36-Item short-form survey itchy skin item and measures of fatigue, sleep, depression, and general health. Sankey diagrams and Spearman’s correlations were used to describe pruritus evolution. Cox and linear regression models were used to identify predictors of moderate-to-severe pruritus and examined associations with PROs.

Results

Among 747 patients, the 18-month cumulative incidence of moderate-to-severe pruritus was 52%. Baseline–to–follow-up correlations for pruritus severity declined over time, though short-term correlations remained strong. Sociodemographic and clinical characteristics were minimally predictive of incident pruritus. Compared with those without pruritus, patients with incident pruritus reported higher fatigue (+0.7 [0.1–1.4]) and lower sleep quality scores (−1.0 [−1.6 to −0.5]). Similar patterns were observed for persistent versus resolved pruritus.

Conclusion

CKD-aP is a prevalent and fluctuating symptom in patients on HD. Its association with poorer fatigue and sleep outcomes highlights the importance of ongoing monitoring and targeted management to improve patient well-being.
慢性肾脏疾病(CKD)相关瘙痒(CKD- ap)是透析患者中常见且令人痛苦的症状,对患者报告的结果(PROs)如睡眠和心理健康产生负面影响。尽管其高患病率,CKD-aP的演变、发病率和长期影响仍然知之甚少。本研究检查了血液透析(HD)患者中新发CKD-aP的累积发病率,确定了其关键预测因素,并评估了CKD-aP严重程度与PROs之间的关系。方法在这项前瞻性、多中心队列研究中,研究人员对来自6个欧洲国家的HD患者进行了为期18个月的随访,每3个月进行一次评估。患者完成了一项电子PRO (ePRO)调查,包括肾病生活质量36项简短问卷调查,皮肤瘙痒问题以及疲劳、睡眠、抑郁和一般健康状况的测量。桑基图和斯皮尔曼的相关性被用来描述瘙痒症的演变。使用Cox和线性回归模型确定中度至重度瘙痒的预测因子,并检查与PROs的关系。结果747例患者中,18个月累计中重度瘙痒的发生率为52%。瘙痒严重程度的基线与随访相关性随着时间的推移而下降,尽管短期相关性仍然很强。社会人口学和临床特征对瘙痒事件的预测作用最小。与无瘙痒症患者相比,偶发性瘙痒症患者的疲劳度较高(+0.7[0.1-1.4]),睡眠质量评分较低(- 1.0[- 1.6 - - 0.5])。在持续性和消退性瘙痒中观察到类似的模式。结论ckd - ap是HD患者普遍存在的波动症状。它与较差的疲劳和睡眠结果的关联突出了持续监测和有针对性管理以改善患者健康的重要性。
{"title":"Longitudinal Trajectories of CKD-Associated Pruritus","authors":"Marc G. Vervloet ,&nbsp;Charlotte Tu ,&nbsp;Sammantha Fuller ,&nbsp;James Fotheringham ,&nbsp;Ronald L. Pisoni ,&nbsp;Thilo Schaufler ,&nbsp;Despina Ruessmann ,&nbsp;Roberto Pecoits-Filho ,&nbsp;Angelo Karaboyas","doi":"10.1016/j.ekir.2025.10.023","DOIUrl":"10.1016/j.ekir.2025.10.023","url":null,"abstract":"<div><h3>Introduction</h3><div>Chronic kidney disease (CKD)-associated pruritus (CKD-aP) is a common and distressing symptom among dialysis patients, negatively affecting patient-reported outcomes (PROs) such as sleep and mental health. Despite its high prevalence, the evolution, incidence, and long-term impact of CKD-aP remains poorly understood. This study examined the cumulative incidence of new-onset CKD-aP among patients on hemodialysis (HD), identified its key predictors, and assessed associations between CKD-aP severity and PROs.</div></div><div><h3>Methods</h3><div>In this prospective, multicenter cohort study, incident and prevalent HD patients from 6 European countries were followed over 18 months, with assessments every 3 months. Patients completed an electronic PRO (ePRO) survey, including the Kidney Disease Quality of Life Short Form 36-Item short-form survey itchy skin item and measures of fatigue, sleep, depression, and general health. Sankey diagrams and Spearman’s correlations were used to describe pruritus evolution. Cox and linear regression models were used to identify predictors of moderate-to-severe pruritus and examined associations with PROs.</div></div><div><h3>Results</h3><div>Among 747 patients, the 18-month cumulative incidence of moderate-to-severe pruritus was 52%. Baseline–to–follow-up correlations for pruritus severity declined over time, though short-term correlations remained strong. Sociodemographic and clinical characteristics were minimally predictive of incident pruritus. Compared with those without pruritus, patients with incident pruritus reported higher fatigue (+0.7 [0.1–1.4]) and lower sleep quality scores (−1.0 [−1.6 to −0.5]). Similar patterns were observed for persistent versus resolved pruritus.</div></div><div><h3>Conclusion</h3><div>CKD-aP is a prevalent and fluctuating symptom in patients on HD. Its association with poorer fatigue and sleep outcomes highlights the importance of ongoing monitoring and targeted management to improve patient well-being.</div></div>","PeriodicalId":17761,"journal":{"name":"Kidney International Reports","volume":"11 1","pages":"Pages 86-93"},"PeriodicalIF":5.7,"publicationDate":"2025-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145801827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Current and Emerging Therapies for C3 Glomerulopathy and Primary (Idiopathic) Immune Complex Membranoproliferative Glomerulonephritis C3肾小球病变和原发性(特发性)免疫复合物膜增生性肾小球肾炎的当前和新兴治疗方法
IF 5.7 2区 医学 Q1 UROLOGY & NEPHROLOGY Pub Date : 2025-11-05 DOI: 10.1016/j.ekir.2025.10.020
David Kavanagh , Gema Ariceta , Marina Vivarelli , Franz Schaefer , Fernando Caravaca-Fontán , Véronique Frémeaux-Bacchi , Fadi Fakhouri , Christoph Licht , Matthew C. Pickering
C3 glomerulopathy (C3G) and primary (idiopathic) immune complex membranoproliferative glomerulonephritis (IC-MPGN) are rare kidney diseases characterized by dysregulation of the complement system and progressive deposition of C3 and its breakdown products in the glomeruli, ultimately leading to kidney failure in up to 50% of patients within 10 years. Until recently, standard approaches to treatment included supportive measures common to many kidney diseases and immunosuppression to mitigate inflammation, rather than specific therapies addressing the underlying C3 dysregulation. However, recent advances in targeted complement inhibitor therapy have been made in these diseases with positive results from phase 3 clinical trials of both the factor B inhibitor, iptacopan (in adults with native kidney C3G) and the C3/C3b inhibitor, pegcetacoplan (in adults and adolescents with native or posttransplant C3G or primary IC-MPGN). In this review, we summarize what is known and what questions still remain regarding the effect of complement inhibitors on widely accepted surrogate end points for efficacy in C3G/primary IC-MPGN (proteinuria, estimated glomerular filtration rate [eGFR], and kidney biopsy histology). Additional controversies, including candidate patient populations, optimal treatment duration, and how best to monitor patients on complement inhibitor therapy are also discussed, in an effort to prepare the nephrology community for innovative therapeutic options for patients whose long-term prognosis has generally been dismal.
C3肾小球病(C3G)和原发性(特发性)免疫复合物膜增殖性肾小球肾炎(IC-MPGN)是罕见的肾脏疾病,其特征是补体系统失调和C3及其分解产物在肾小球内的进行性沉积,最终导致高达50%的患者在10年内肾功能衰竭。直到最近,标准的治疗方法包括许多肾脏疾病常见的支持措施和免疫抑制以减轻炎症,而不是针对潜在的C3失调的特定治疗。然而,最近靶向补体抑制剂治疗在这些疾病中取得了进展,因子B抑制剂iptacopan(用于患有先天性肾C3G的成人)和C3/C3b抑制剂pegcetacoplan(用于患有先天性或移植后C3G或原发性IC-MPGN的成人和青少年)的3期临床试验均取得了积极结果。在这篇综述中,我们总结了补体抑制剂对C3G/原发性IC-MPGN(蛋白尿、估计肾小球滤过率[eGFR]和肾活检组织学)疗效的影响的已知和仍然存在的问题。其他的争议,包括候选患者群体,最佳治疗持续时间,以及如何最好地监测补体抑制剂治疗的患者也进行了讨论,努力为肾脏病学界为长期预后通常较差的患者提供创新的治疗选择。
{"title":"Current and Emerging Therapies for C3 Glomerulopathy and Primary (Idiopathic) Immune Complex Membranoproliferative Glomerulonephritis","authors":"David Kavanagh ,&nbsp;Gema Ariceta ,&nbsp;Marina Vivarelli ,&nbsp;Franz Schaefer ,&nbsp;Fernando Caravaca-Fontán ,&nbsp;Véronique Frémeaux-Bacchi ,&nbsp;Fadi Fakhouri ,&nbsp;Christoph Licht ,&nbsp;Matthew C. Pickering","doi":"10.1016/j.ekir.2025.10.020","DOIUrl":"10.1016/j.ekir.2025.10.020","url":null,"abstract":"<div><div>C3 glomerulopathy (C3G) and primary (idiopathic) immune complex membranoproliferative glomerulonephritis (IC-MPGN) are rare kidney diseases characterized by dysregulation of the complement system and progressive deposition of C3 and its breakdown products in the glomeruli, ultimately leading to kidney failure in up to 50% of patients within 10 years. Until recently, standard approaches to treatment included supportive measures common to many kidney diseases and immunosuppression to mitigate inflammation, rather than specific therapies addressing the underlying C3 dysregulation. However, recent advances in targeted complement inhibitor therapy have been made in these diseases with positive results from phase 3 clinical trials of both the factor B inhibitor, iptacopan (in adults with native kidney C3G) and the C3/C3b inhibitor, pegcetacoplan (in adults and adolescents with native or posttransplant C3G or primary IC-MPGN). In this review, we summarize what is known and what questions still remain regarding the effect of complement inhibitors on widely accepted surrogate end points for efficacy in C3G/primary IC-MPGN (proteinuria, estimated glomerular filtration rate [eGFR], and kidney biopsy histology). Additional controversies, including candidate patient populations, optimal treatment duration, and how best to monitor patients on complement inhibitor therapy are also discussed, in an effort to prepare the nephrology community for innovative therapeutic options for patients whose long-term prognosis has generally been dismal.</div></div>","PeriodicalId":17761,"journal":{"name":"Kidney International Reports","volume":"11 1","pages":"Pages 17-31"},"PeriodicalIF":5.7,"publicationDate":"2025-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145802289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Clinicopathological Spectrum and Treatment Outcomes of Cryofibrinogen-Associated Nephropathies 低温纤维蛋白原相关性肾病的临床病理谱及治疗效果
IF 5.7 2区 医学 Q1 UROLOGY & NEPHROLOGY Pub Date : 2025-11-05 DOI: 10.1016/j.ekir.2025.10.022
Julien Dang , Stanislas Faguer , Noémie Jourde-Chiche , Vincent Javaugue , Frank Bridoux , Bénédice Puissant , Xavier Heim , Jean-Jacques Boffa , Hélène François , Yanis Tamzali , Evangéline Pillebout , Eric Daugas , Renato Monteiro , Laurent Daniel , Kévin Chevalier , Vincent Audard , Margaux Van Wynsberghe , Dominique Guerrot , Mathieu Legendre , Sébastien Sanges , Mohamad Zaidan

Introduction

Cryofibrinogen-associated nephropathy (CFN) is a very rare disease. Only few data are available about the clinicopathological presentation and treatment outcomes.

Methods

Patients with cryofibrinogenemia (CF) diagnosed in French expert laboratories, and kidney biopsy findings suggestive of CFN (pauci-immune membranoproliferative glomerulonephritis [MPGN], thrombotic microangiopathy [TMA] and/or indirect signs of ischemia) were retrospectively included. Estimated glomerular filtration rate (eGFR), urinary protein-to-creatinine ratio (UPCR), and specific treatments were collected. Renal response (RR) was defined as a reduction of UPCR to < 0.5 g/g (or decrease > 50% if > 3 g/g at baseline) and an improvement of eGFR > 30% (if < 60 ml/min per 1.73 m2 and acute kidney injury (AKI) at baseline).

Results

Among 2545 patients with CF, 232 (9%) underwent kidney biopsy, and only 28 (1%) had histological findings suggestive of CFN. Ten patients (36%) were female, and median age was 62 (interquartile range [IQR]: 49–71) years. eGFR at diagnosis was 21 (14–44) ml/min per 1.73 m2. Median UPCR was 3.30 (IQR: 1.52–4.85) g/g. AKI (78%) and nephrotic syndrome (41%) were frequent. Nine patients had an essential form, whereas 19 had a secondary form. MPGN was the most frequent pattern, with double contours (57%), nodular mesangial sclerosis (30%), mesangial (41%), endocapillary (56%) and extracapillary (11%) hypercellularity, and interstitial immune infiltration (41%). Thrombi were found in 43% of cases. Strikingly, 58% of the secondary forms were associated with a monoclonal gammopathy (MG). Patients with MG had more frequent skin manifestations (P = 0.002), endocapillary (P = 0.002), interstitial (P = 0.041) infiltration, and capillary thrombi (P = 0.012), and tended to have more frequent complement activation (P = 0.14). Sixty percent of patients were treated with various regimens of immunosuppressants (IS). After a mean follow-up of 476 (± 92) days, 65% of patients had an RR. Higher baseline eGFR (P = 0.04) and use of IS (P = 0.03) were predictive of RR. B-cell or plasma-cell depletion was effective in most cases associated with MG (80%).

Conclusion

Our study, to the best of our knowledge, described for the first time the prevalence and the clinicopathological spectrum of CFN, which might be a very rare and underrecognized form of MG of renal significance presenting with pauci-immune MPGN ot TMA. IS are effective in most cases.
低温纤维蛋白原相关性肾病(CFN)是一种非常罕见的疾病。关于临床病理表现和治疗结果的资料很少。方法回顾性分析在法国专家实验室诊断为低温纤维蛋白原血症(CF),肾活检结果提示CFN(缺乏免疫膜增殖性肾小球肾炎[MPGN],血栓性微血管病变[TMA]和/或间接缺血迹象)的患者。收集肾小球滤过率(eGFR)、尿蛋白与肌酐比值(UPCR)和具体治疗方法。肾脏反应(RR)被定义为UPCR降低至0.5 g/g(或降低50%,如果基线为3g /g), eGFR改善30%(如果基线为60ml /min / 1.73 m2和急性肾损伤(AKI))。结果在2545例CF患者中,232例(9%)进行了肾活检,只有28例(1%)有提示CFN的组织学表现。女性10例(36%),中位年龄62岁(四分位数间距[IQR]: 49-71)岁。诊断时eGFR为21 (14-44)ml/min / 1.73 m2。中位UPCR为3.30 (IQR: 1.52-4.85) g/g。AKI(78%)和肾病综合征(41%)是常见的。9名患者有基本形式,而19名患者有次要形式。MPGN是最常见的类型,双重轮廓(57%),结节性系膜硬化(30%),系膜(41%),毛细血管内(56%)和毛细血管外(11%)细胞增多,间质免疫浸润(41%)。血栓发生率为43%。引人注目的是,58%的继发性形式与单克隆γ病(MG)相关。MG患者皮肤(P = 0.002)、毛细血管内(P = 0.002)、间质(P = 0.041)浸润、毛细血管血栓(P = 0.012)发生率更高,补体活化发生率更高(P = 0.14)。60%的患者接受各种免疫抑制剂(IS)方案的治疗。平均随访476(±92)天后,65%的患者出现RR。较高的基线eGFR (P = 0.04)和使用IS (P = 0.03)可预测RR。b细胞或浆细胞耗竭对大多数MG患者有效(80%)。结论据我们所知,我们的研究首次描述了CFN的患病率和临床病理谱,CFN可能是一种非常罕见的、未被充分认识的、具有肾脏意义的MG形式,表现为缺乏免疫的MPGN而不是TMA。IS在大多数情况下都是有效的。
{"title":"Clinicopathological Spectrum and Treatment Outcomes of Cryofibrinogen-Associated Nephropathies","authors":"Julien Dang ,&nbsp;Stanislas Faguer ,&nbsp;Noémie Jourde-Chiche ,&nbsp;Vincent Javaugue ,&nbsp;Frank Bridoux ,&nbsp;Bénédice Puissant ,&nbsp;Xavier Heim ,&nbsp;Jean-Jacques Boffa ,&nbsp;Hélène François ,&nbsp;Yanis Tamzali ,&nbsp;Evangéline Pillebout ,&nbsp;Eric Daugas ,&nbsp;Renato Monteiro ,&nbsp;Laurent Daniel ,&nbsp;Kévin Chevalier ,&nbsp;Vincent Audard ,&nbsp;Margaux Van Wynsberghe ,&nbsp;Dominique Guerrot ,&nbsp;Mathieu Legendre ,&nbsp;Sébastien Sanges ,&nbsp;Mohamad Zaidan","doi":"10.1016/j.ekir.2025.10.022","DOIUrl":"10.1016/j.ekir.2025.10.022","url":null,"abstract":"<div><h3>Introduction</h3><div>Cryofibrinogen-associated nephropathy (CFN) is a very rare disease. Only few data are available about the clinicopathological presentation and treatment outcomes.</div></div><div><h3>Methods</h3><div>Patients with cryofibrinogenemia (CF) diagnosed in French expert laboratories, and kidney biopsy findings suggestive of CFN (pauci-immune membranoproliferative glomerulonephritis [MPGN], thrombotic microangiopathy [TMA] and/or indirect signs of ischemia) were retrospectively included. Estimated glomerular filtration rate (eGFR), urinary protein-to-creatinine ratio (UPCR), and specific treatments were collected. Renal response (RR) was defined as a reduction of UPCR to &lt; 0.5 g/g (or decrease &gt; 50% if &gt; 3 g/g at baseline) and an improvement of eGFR &gt; 30% (if &lt; 60 ml/min per 1.73 m<sup>2</sup> and acute kidney injury (AKI) at baseline).</div></div><div><h3>Results</h3><div>Among 2545 patients with CF, 232 (9%) underwent kidney biopsy, and only 28 (1%) had histological findings suggestive of CFN. Ten patients (36%) were female, and median age was 62 (interquartile range [IQR]: 49–71) years. eGFR at diagnosis was 21 (14–44) ml/min per 1.73 m<sup>2</sup>. Median UPCR was 3.30 (IQR: 1.52–4.85) g/g. AKI (78%) and nephrotic syndrome (41%) were frequent. Nine patients had an essential form, whereas 19 had a secondary form. MPGN was the most frequent pattern, with double contours (57%), nodular mesangial sclerosis (30%), mesangial (41%), endocapillary (56%) and extracapillary (11%) hypercellularity, and interstitial immune infiltration (41%). Thrombi were found in 43% of cases. Strikingly, 58% of the secondary forms were associated with a monoclonal gammopathy (MG). Patients with MG had more frequent skin manifestations (<em>P</em> = 0.002), endocapillary (<em>P</em> = 0.002), interstitial (<em>P</em> = 0.041) infiltration, and capillary thrombi (<em>P</em> = 0.012), and tended to have more frequent complement activation (<em>P</em> = 0.14). Sixty percent of patients were treated with various regimens of immunosuppressants (IS). After a mean follow-up of 476 (± 92) days, 65% of patients had an RR. Higher baseline eGFR (<em>P</em> = 0.04) and use of IS (<em>P</em> = 0.03) were predictive of RR. B-cell or plasma-cell depletion was effective in most cases associated with MG (80%).</div></div><div><h3>Conclusion</h3><div>Our study, to the best of our knowledge, described for the first time the prevalence and the clinicopathological spectrum of CFN, which might be a very rare and underrecognized form of MG of renal significance presenting with pauci-immune MPGN ot TMA. IS are effective in most cases.</div></div>","PeriodicalId":17761,"journal":{"name":"Kidney International Reports","volume":"11 1","pages":"Pages 129-140"},"PeriodicalIF":5.7,"publicationDate":"2025-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145801811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Liver Cyst Infection Outcomes in Patients With ADPKD ADPKD患者肝囊肿感染的结局
IF 5.7 2区 医学 Q1 UROLOGY & NEPHROLOGY Pub Date : 2025-11-04 DOI: 10.1016/j.ekir.2025.10.027
Charles Ronsin , François Jouret , Simon Ville , Jihad Abdelmalki , Grégoire Couvrat-Desvergnes , Léo Drapeau , Raphael Gaisne , Benjamin Gaborit , Caroline Charlier , Mohamad Zaidan , Renaud Snanoudj , Magali Giral , Jacques Dantal , Bertrand Knebelmann , Julien Dang

Introduction

Liver cyst infection is a rare and severe complication of the liver cysts associated with autosomal dominant polycystic kidney disease (ADPKD), and evidence-based data for optimal management is lacking. We conducted a multicentric retrospective study to investigate the treatment and outcomes of liver cyst infection.

Methods

Liver cyst infection was either defined by (i) C-reactive protein levels ≥ 50 mg/l and suspicion at computed tomography (CT) scan, 18Fluorodeoxyglucose (18FDG) positron-emission tomography (PET) CT, magnetic resonance imaging (MRI); or (ii) proven by cyst puncture. We studied the determinants of treatment failure (persistent infection with requirement for antibiotic therapy change, cyst drainage, and hepatectomy), relapse (< 2 months) and recurrence (> 2 months) of liver cyst infection after antibiotics discontinuation.

Results

Sixty-two patients and 112 episodes were included. At least 1 microorganism was identified in 70 of 112 episodes (63%), mainly Escherichia coli in 36 of 70of cases (51%). E coli was resistant to third generation cephalosporin, fluoroquinolone, or cotrimoxazole in 13%, 16%, and 34%, respectively. Treatment failure and relapse occurred in 30 of 112 episodes (27%). Antibiotic therapy duration ≥ 14 days was a protective factor for treatment failure or relapses (odds ratio [OR] = 0.03, 95% confidence interval [CI]: 0–0.23], P = 0.006). Recurrence occurred in 24 of 62 patients (38%), within 1 year for 15 patients (24%) after the first episode. An antibiotic therapy duration ≥ 28 days was identified as a protective factor (OR = 0.12, 95% CI: 0.02–0.65], P = 0.021). Conversely, a history of renal cyst infection significantly increased the risk of recurrence within 1 year (OR = 9.22 95% CI: 1.28–99.55], P = 0.04).

Conclusion

Treatment failure or relapse or recurrence of liver cyst infection both occurred in one-third of cases, and are associated with a shorter antibiotic therapy duration < 28 days.
肝囊肿感染是常染色体显性多囊肾病(ADPKD)相关的一种罕见且严重的肝囊肿并发症,缺乏最佳治疗的循证数据。我们进行了一项多中心回顾性研究,探讨肝囊肿感染的治疗和结果。方法银囊肿感染的诊断标准为(i) c反应蛋白水平≥50 mg/l,并通过计算机断层扫描(CT)、18氟脱氧葡萄糖(18FDG)正电子发射断层扫描(PET) CT、磁共振成像(MRI)进行怀疑;或(ii)经囊肿穿刺证实。我们研究了治疗失败的决定因素(持续感染,需要改变抗生素治疗,囊肿引流和肝切除术),停药后肝囊肿感染复发(2个月)和复发(2个月)。结果共纳入62例患者,112次发作。112例病例中有70例(63%)至少鉴定出1种微生物,70例中有36例(51%)主要鉴定出大肠杆菌。大肠杆菌对第三代头孢菌素、氟喹诺酮和复方新诺唑的耐药率分别为13%、16%和34%。112例中有30例(27%)出现治疗失败和复发。抗生素治疗时间≥14天是治疗失败或复发的保护因素(优势比[or] = 0.03, 95%可信区间[CI]: 0-0.23], P = 0.006)。62例患者中有24例(38%)复发,15例(24%)首次发作后1年内复发。抗生素治疗持续时间≥28天被确定为保护因素(OR = 0.12, 95% CI: 0.02-0.65)。相反,肾囊肿感染史显著增加1年内复发的风险(OR = 9.22 95% CI: 1.28-99.55), P = 0.04。结论肝囊肿感染治疗失败或复发、复发均占1 / 3,且抗生素治疗时间较短(28天)。
{"title":"Liver Cyst Infection Outcomes in Patients With ADPKD","authors":"Charles Ronsin ,&nbsp;François Jouret ,&nbsp;Simon Ville ,&nbsp;Jihad Abdelmalki ,&nbsp;Grégoire Couvrat-Desvergnes ,&nbsp;Léo Drapeau ,&nbsp;Raphael Gaisne ,&nbsp;Benjamin Gaborit ,&nbsp;Caroline Charlier ,&nbsp;Mohamad Zaidan ,&nbsp;Renaud Snanoudj ,&nbsp;Magali Giral ,&nbsp;Jacques Dantal ,&nbsp;Bertrand Knebelmann ,&nbsp;Julien Dang","doi":"10.1016/j.ekir.2025.10.027","DOIUrl":"10.1016/j.ekir.2025.10.027","url":null,"abstract":"<div><h3>Introduction</h3><div>Liver cyst infection is a rare and severe complication of the liver cysts associated with autosomal dominant polycystic kidney disease (ADPKD), and evidence-based data for optimal management is lacking. We conducted a multicentric retrospective study to investigate the treatment and outcomes of liver cyst infection.</div></div><div><h3>Methods</h3><div>Liver cyst infection was either defined by (i) C-reactive protein levels ≥ 50 mg/l and suspicion at computed tomography (CT) scan, <sup>18</sup>Fluorodeoxyglucose (<sup>18</sup>FDG) positron-emission tomography (PET) CT, magnetic resonance imaging (MRI); or (ii) proven by cyst puncture. We studied the determinants of treatment failure (persistent infection with requirement for antibiotic therapy change, cyst drainage, and hepatectomy), relapse (&lt; 2 months) and recurrence (&gt; 2 months) of liver cyst infection after antibiotics discontinuation.</div></div><div><h3>Results</h3><div>Sixty-two patients and 112 episodes were included. At least 1 microorganism was identified in 70 of 112 episodes (63%), mainly <em>Escherichia coli</em> in 36 of 70of cases (51%). <em>E coli</em> was resistant to third generation cephalosporin, fluoroquinolone, or cotrimoxazole in 13%, 16%, and 34%, respectively. Treatment failure and relapse occurred in 30 of 112 episodes (27%). Antibiotic therapy duration ≥ 14 days was a protective factor for treatment failure or relapses (odds ratio [OR] = 0.03, 95% confidence interval [CI]: 0–0.23], <em>P</em> = 0.006). Recurrence occurred in 24 of 62 patients (38%), within 1 year for 15 patients (24%) after the first episode. An antibiotic therapy duration ≥ 28 days was identified as a protective factor (OR = 0.12, 95% CI: 0.02–0.65], <em>P</em> = 0.021). Conversely, a history of renal cyst infection significantly increased the risk of recurrence within 1 year (OR = 9.22 95% CI: 1.28–99.55], <em>P</em> = 0.04).</div></div><div><h3>Conclusion</h3><div>Treatment failure or relapse or recurrence of liver cyst infection both occurred in one-third of cases, and are associated with a shorter antibiotic therapy duration &lt; 28 days.</div></div>","PeriodicalId":17761,"journal":{"name":"Kidney International Reports","volume":"11 1","pages":"Pages 94-105"},"PeriodicalIF":5.7,"publicationDate":"2025-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145801828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Time-unrestricted, Immune Surveillance–Guided Desensitization Enables Kidney Transplantation in Highly Sensitized Patients 时间不受限制,免疫监视引导脱敏使肾移植高度敏感的患者
IF 5.7 2区 医学 Q1 UROLOGY & NEPHROLOGY Pub Date : 2025-11-04 DOI: 10.1016/j.ekir.2025.10.026
Kentaro Ide , Hiroyuki Tahara , Ryosuke Nakano , Hiroshi Sakai , Seiichi Shimizu , Masahiro Ohira , Yuka Tanaka , Hideki Ohdan
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引用次数: 0
Povetacicept for IgA Nephropathy and Primary Membranous Nephropathy 波维西普治疗IgA肾病和原发性膜性肾病
IF 5.7 2区 医学 Q1 UROLOGY & NEPHROLOGY Pub Date : 2025-11-03 DOI: 10.1016/j.ekir.2025.10.029
Arvind Madan , Rajesh Yalavarthy , Dong Ki Kim , Ju-Young Moon , Inwhee Park , Sreedhar Mandayam , Frank Cortazar , Sung Gyun Kim , Amanda Enstrom , Heather Thomas , Jiahua Li , Stanford L. Peng , Yih-Chieh Chen , Jason Sanders , Ogo Egbuna , James Tumlin

Introduction

Povetacicept is an inhibitor of B-cell activating factor (BAFF) and A proliferation–inducing ligand (APRIL), 2 cytokines central to the pathogenesis of autoimmune glomerulonephritis. Both BAFF and APRIL promote B-cell and plasma cell survival and function. APRIL primarily supports plasma cell survival and function, whereas BAFF regulates early pathogenic B-cell development, activates pathogenic T cells and innate immune cells, and contributes to mesangial cell proliferation and podocyte injury.

Methods

Our phase 1 and 2, open-label study evaluated povetacicept in adult participants with IgA nephropathy (IgAN) or primary membranous nephropathy (pMN), all with estimated glomerular filtration rate (eGFR) of ≥ 30 ml/min per 1.73 m2. The primary objective was safety. Secondary objectives included change from baseline in urine protein-to-creatinine ratio (UPCR), eGFR, galactose-deficient IgA1 (Gd-IgA1) (IgAN), antiphospholipase A2 receptor autoantibody (aPLA2R; pMN), and clinical remission (with hematuria resolution for IgAN).

Results

Povetacicept was administered subcutaneously every 4 weeks (Q4W) to 54 participants with IgAN (21 received 80 mg, 33 received 240 mg) and 10 with pMN (all received 80 mg). In this interim analysis, participants with IgAN on 80 mg had a 64% mean 24-hour UPCR decrease (95% confidence interval: –76 to –48) from baseline (1.3 g/g to 0.5 g/g; 65% with UPCR < 0.5 g/g) with stable eGFR at week 48. Early decline in Gd-IgA1 at week 12 (57%), continued at week 48 (77%). Approximately 90% achieved hematuria resolution and 53% achieved clinical remission. Efficacy outcomes were similar with 240 mg povetacicept. Participants with pMN had an 82% mean 24-hour UPCR decrease (95% confidence interval: –92 to –60) from baseline (3.8 g/g to 0.7 g/g) with stable eGFR. Early decline in aPLA2R at week 12 (73%), continued at week 48 (83%) with 100% in immunologic remission (40% achieved complete remission; 100% achieved partial remission). Povetacicept was generally safe and well-tolerated for IgAN and pMN.

Conclusion

Povetacicept had substantial, sustained UPCR reductions with stable eGFR, significant Gd-IgA1 reductions, hematuria resolution, clinical remission, with favorable safety in IgAN. Similar results were observed in pMN. By inhibiting both BAFF and APRIL, povetacicept targets the underlying cause of disease and has potential to provide a significant therapeutic advancement for autoimmune glomerular diseases.
povetacicept是一种b细胞活化因子(BAFF)和A增殖诱导配体(APRIL)的抑制剂,这两种细胞因子对自身免疫性肾小球肾炎的发病机制至关重要。BAFF和APRIL都能促进b细胞和浆细胞的存活和功能。APRIL主要支持浆细胞的存活和功能,而BAFF调节早期致病性b细胞的发育,激活致病性T细胞和先天免疫细胞,并促进系膜细胞增殖和足细胞损伤。方法1期和2期开放标签研究评估了波维他西ept在IgA肾病(IgAN)或原发性膜性肾病(pMN)成人患者中的疗效,所有患者肾小球滤过率(eGFR)均≥30ml /min / 1.73 m2。首要目标是安全。次要目标包括尿蛋白与肌酐比值(UPCR)、eGFR、半乳糖缺乏IgA1 (Gd-IgA1) (IgAN)、抗磷脂酶A2受体自身抗体(aPLA2R; pMN)和临床缓解(IgAN的血尿消退)从基线的变化。结果54例IgAN组(21例80 mg, 33例240 mg)和10例pMN组(均为80 mg)每4周皮下注射一次spovetacicept (Q4W)。在这项中期分析中,IgAN剂量为80 mg的参与者在48周eGFR稳定的情况下,平均24小时UPCR较基线(1.3 g/g至0.5 g/g; 65%的UPCR和0.5 g/g)下降64%(95%可信区间:-76至-48)。Gd-IgA1在第12周早期下降(57%),在第48周继续下降(77%)。大约90%的患者获得血尿缓解,53%的患者获得临床缓解。疗效结果与240 mg波维西ept相似。pMN患者的平均24小时UPCR较基线(3.8 g/g至0.7 g/g)下降82%(95%置信区间:-92至-60),eGFR稳定。aPLA2R在第12周早期下降(73%),在第48周继续下降(83%),100%的免疫缓解(40%达到完全缓解,100%达到部分缓解)。对于IgAN和pMN, Povetacicept总体上是安全且耐受性良好的。结论povetacicept具有显著、持续的UPCR降低,eGFR稳定,Gd-IgA1显著降低,血尿缓解,临床缓解,IgAN安全性良好。在pMN中也观察到类似的结果。通过抑制BAFF和APRIL, povetacicept靶向疾病的潜在原因,并有可能为自身免疫性肾小球疾病的治疗提供重大进展。
{"title":"Povetacicept for IgA Nephropathy and Primary Membranous Nephropathy","authors":"Arvind Madan ,&nbsp;Rajesh Yalavarthy ,&nbsp;Dong Ki Kim ,&nbsp;Ju-Young Moon ,&nbsp;Inwhee Park ,&nbsp;Sreedhar Mandayam ,&nbsp;Frank Cortazar ,&nbsp;Sung Gyun Kim ,&nbsp;Amanda Enstrom ,&nbsp;Heather Thomas ,&nbsp;Jiahua Li ,&nbsp;Stanford L. Peng ,&nbsp;Yih-Chieh Chen ,&nbsp;Jason Sanders ,&nbsp;Ogo Egbuna ,&nbsp;James Tumlin","doi":"10.1016/j.ekir.2025.10.029","DOIUrl":"10.1016/j.ekir.2025.10.029","url":null,"abstract":"<div><h3>Introduction</h3><div>Povetacicept is an inhibitor of B-cell activating factor (BAFF) and A proliferation–inducing ligand (APRIL), 2 cytokines central to the pathogenesis of autoimmune glomerulonephritis. Both BAFF and APRIL promote B-cell and plasma cell survival and function. APRIL primarily supports plasma cell survival and function, whereas BAFF regulates early pathogenic B-cell development, activates pathogenic T cells and innate immune cells, and contributes to mesangial cell proliferation and podocyte injury.</div></div><div><h3>Methods</h3><div>Our phase 1 and 2, open-label study evaluated povetacicept in adult participants with IgA nephropathy (IgAN) or primary membranous nephropathy (pMN), all with estimated glomerular filtration rate (eGFR) of ≥ 30 ml/min per 1.73 m<sup>2</sup>. The primary objective was safety. Secondary objectives included change from baseline in urine protein-to-creatinine ratio (UPCR), eGFR, galactose-deficient IgA1 (Gd-IgA1) (IgAN), antiphospholipase A2 receptor autoantibody (aPLA2R; pMN), and clinical remission (with hematuria resolution for IgAN).</div></div><div><h3>Results</h3><div>Povetacicept was administered subcutaneously every 4 weeks (Q4W) to 54 participants with IgAN (21 received 80 mg, 33 received 240 mg) and 10 with pMN (all received 80 mg). In this interim analysis, participants with IgAN on 80 mg had a 64% mean 24-hour UPCR decrease (95% confidence interval: –76 to –48) from baseline (1.3 g/g to 0.5 g/g; 65% with UPCR &lt; 0.5 g/g) with stable eGFR at week 48. Early decline in Gd-IgA1 at week 12 (57%), continued at week 48 (77%). Approximately 90% achieved hematuria resolution and 53% achieved clinical remission. Efficacy outcomes were similar with 240 mg povetacicept. Participants with pMN had an 82% mean 24-hour UPCR decrease (95% confidence interval: –92 to –60) from baseline (3.8 g/g to 0.7 g/g) with stable eGFR. Early decline in aPLA2R at week 12 (73%), continued at week 48 (83%) with 100% in immunologic remission (40% achieved complete remission; 100% achieved partial remission). Povetacicept was generally safe and well-tolerated for IgAN and pMN.</div></div><div><h3>Conclusion</h3><div>Povetacicept had substantial, sustained UPCR reductions with stable eGFR, significant Gd-IgA1 reductions, hematuria resolution, clinical remission, with favorable safety in IgAN. Similar results were observed in pMN. By inhibiting both BAFF and APRIL, povetacicept targets the underlying cause of disease and has potential to provide a significant therapeutic advancement for autoimmune glomerular diseases.</div></div>","PeriodicalId":17761,"journal":{"name":"Kidney International Reports","volume":"11 1","pages":"Pages 106-116"},"PeriodicalIF":5.7,"publicationDate":"2025-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145801829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Randomized Controlled Trial on the Efficacy of Reduced-Dose Cyclical Corticosteroids and Cyclophosphamide in Primary Membranous Nephropathy 减少剂量周期性皮质类固醇和环磷酰胺治疗原发性膜性肾病疗效的随机对照试验
IF 5.7 2区 医学 Q1 UROLOGY & NEPHROLOGY Pub Date : 2025-11-01 DOI: 10.1016/j.ekir.2025.08.018
Raja Ramachandran , Prabhat Chauhan , Joyita Bharati , Manisha Sahay , Indranil Ghosh , Vivek Sood , Thakur Sain , Prabhjot Kaur , Vinod Kumar , Arun Prabhahar , Ritambhra Nada , Jasmine Sethi , Smita Divyaveer , Manish Rathi , Harbir Kohli , Vivekanand Jha

Introduction

The use of cyclophosphamide with corticosteroids for the management of membranous nephropathy (MN) is associated with significant safety concerns. Several retrospective studies suggest that a lower dose may effectively induce remission in participants with MN. This randomized trial assessed whether the lower dose of cyclical cyclophosphamide/corticosteroids was noninferior to the standard dose in patients with MN.

Methods

We randomly assigned 114 participants (32 women and 82 men) to receive either the low dose (prednisolone, 0.5 mg/kg/d during months 1, 3, and 5 along with oral cyclophosphamide, 1.0–1.5 mg/kg/d during months 2, 4, and 6) or the standard-dose cyclophosphamide/corticosteroids (methylprednisolone, 1 g/d for 3 days, followed by prednisolone, 0.5 mg/kg/d during months 1, 3, and 5, along with oral cyclophosphamide, 2.0–2.5 mg/kg/d during months 2, 4, and 6). The primary outcome was complete remission (CR) or partial remission (PR) of proteinuria between months 6 and 24.

Results

A total of 57 participants were randomized into each group. The mean age was 41.53 ± 12.29 years; median proteinuria, mean serum albumin, and creatinine levels were respectively 6.83 g/d (interquartile range: 5.02–10.15), 2.34 ± 0.58 g/dl, and 0.92 ± 0.26 mg/dl and were comparable between groups. In the intention-to-treat (ITT) analysis, 45 participants (78.94%) in the low-dose group and 50 participants (87.71%) in the standard-dose group achieved the primary outcome (treatment difference: −8.78%, 97.5% confidence interval [CI]: lower limit −22%) and met the criteria for noninferiority (P = 0.009). Forty-five (78.94%) and 55 (96.49%) participants receiving the low-dose and standard-dose cyclophosphamide/corticosteroids, respectively, experienced at least 1 adverse event (difference: −17.54%, 97.5% CI: lower limit −29.1%).

Conclusion

The results suggest that low-dose cyclophosphamide/corticosteroids may be as effective as the standard dose of cyclical cyclophosphamide/corticosteroids in achieving proteinuria remission in MN.
环磷酰胺联合皮质类固醇治疗膜性肾病(MN)存在明显的安全性问题。一些回顾性研究表明,较低剂量可以有效地诱导MN患者缓解。这项随机试验评估了低剂量环磷酰胺/皮质类固醇是否优于MN患者的标准剂量。MethodsWe随机选取了114名参与者(32名女性和82名男性)接受低剂量(强的松,0.5毫克/公斤/天在月1,3,5和口服环磷酰胺、1.0 - -1.5毫克/公斤/天在月2,4,6)或标准剂量环磷酰胺/糖皮质激素(甲强龙,1 g / d 3天,其次是强的松,0.5毫克/公斤/天在月1,3,5,连同口服环磷酰胺、2.0 - -2.5毫克/公斤/天在月2,4,6)。主要结局是6 - 24个月间蛋白尿完全缓解(CR)或部分缓解(PR)。结果随机分为两组共57例。平均年龄41.53±12.29岁;中位蛋白尿、平均血清白蛋白和肌酐水平分别为6.83 g/d(四分位数范围为5.02-10.15)、2.34±0.58 g/dl和0.92±0.26 mg/dl,组间具有可比性。意向治疗(ITT)分析中,低剂量组45例(78.94%)和标准剂量组50例(87.71%)达到主要结局(治疗差值:- 8.78%,97.5%置信区间[CI]:下限- 22%),符合非劣效性标准(P = 0.009)。分别有45名(78.94%)和55名(96.49%)接受低剂量和标准剂量环磷酰胺/皮质类固醇治疗的受试者经历了至少1次不良事件(差异:- 17.54%,97.5% CI:下限- 29.1%)。结论低剂量环磷酰胺/糖皮质激素与标准剂量环磷酰胺/糖皮质激素可有效缓解蛋白尿。
{"title":"Randomized Controlled Trial on the Efficacy of Reduced-Dose Cyclical Corticosteroids and Cyclophosphamide in Primary Membranous Nephropathy","authors":"Raja Ramachandran ,&nbsp;Prabhat Chauhan ,&nbsp;Joyita Bharati ,&nbsp;Manisha Sahay ,&nbsp;Indranil Ghosh ,&nbsp;Vivek Sood ,&nbsp;Thakur Sain ,&nbsp;Prabhjot Kaur ,&nbsp;Vinod Kumar ,&nbsp;Arun Prabhahar ,&nbsp;Ritambhra Nada ,&nbsp;Jasmine Sethi ,&nbsp;Smita Divyaveer ,&nbsp;Manish Rathi ,&nbsp;Harbir Kohli ,&nbsp;Vivekanand Jha","doi":"10.1016/j.ekir.2025.08.018","DOIUrl":"10.1016/j.ekir.2025.08.018","url":null,"abstract":"<div><h3>Introduction</h3><div>The use of cyclophosphamide with corticosteroids for the management of membranous nephropathy (MN) is associated with significant safety concerns. Several retrospective studies suggest that a lower dose may effectively induce remission in participants with MN. This randomized trial assessed whether the lower dose of cyclical cyclophosphamide/corticosteroids was noninferior to the standard dose in patients with MN.</div></div><div><h3>Methods</h3><div>We randomly assigned 114 participants (32 women and 82 men) to receive either the low dose (prednisolone, 0.5 mg/kg/d during months 1, 3, and 5 along with oral cyclophosphamide, 1.0–1.5 mg/kg/d during months 2, 4, and 6) or the standard-dose cyclophosphamide/corticosteroids (methylprednisolone, 1 g/d for 3 days, followed by prednisolone, 0.5 mg/kg/d during months 1, 3, and 5, along with oral cyclophosphamide, 2.0–2.5 mg/kg/d during months 2, 4, and 6). The primary outcome was complete remission (CR) or partial remission (PR) of proteinuria between months 6 and 24.</div></div><div><h3>Results</h3><div>A total of 57 participants were randomized into each group. The mean age was 41.53 ± 12.29 years; median proteinuria, mean serum albumin, and creatinine levels were respectively 6.83 g/d (interquartile range: 5.02–10.15), 2.34 ± 0.58 g/dl, and 0.92 ± 0.26 mg/dl and were comparable between groups. In the intention-to-treat (ITT) analysis, 45 participants (78.94%) in the low-dose group and 50 participants (87.71%) in the standard-dose group achieved the primary outcome (treatment difference: −8.78%, 97.5% confidence interval [CI]: lower limit −22%) and met the criteria for noninferiority (<em>P</em> = 0.009). Forty-five (78.94%) and 55 (96.49%) participants receiving the low-dose and standard-dose cyclophosphamide/corticosteroids, respectively, experienced at least 1 adverse event (difference: −17.54%, 97.5% CI: lower limit −29.1%).</div></div><div><h3>Conclusion</h3><div>The results suggest that low-dose cyclophosphamide/corticosteroids may be as effective as the standard dose of cyclical cyclophosphamide/corticosteroids in achieving proteinuria remission in MN.</div></div>","PeriodicalId":17761,"journal":{"name":"Kidney International Reports","volume":"10 11","pages":"Pages 3785-3795"},"PeriodicalIF":5.7,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145435370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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Kidney International Reports
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