Prognosis of IgA nephropathy patient with proteinuria remission by supportive therapy: cohort from screening failed Chinese patients in TESTING study

Background During the run-in phase of the TESTING study, approximately half of patients with IgA nephropathy (IgAN) were excluded due to proteinuria below 1 g/24 h after intensive supportive therapy. The long-term prognosis of these patients needs further investigation.Methods 112 screening failed p...

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Main Authors: Yingman Guo, Sufang Shi, Jinghong Zhao, Caili Wang, Zhangsuo Liu, Shuxia Fu, Nan Chen, Guisen Li, Lihua Wang, Zhaohui Ni, Haitao Zhang, Lingyun Lai, Jicheng Lv, Hong Zhang
Format: Article
Language:English
Published: Taylor & Francis Group 2024-12-01
Series:Renal Failure
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Online Access:https://www.tandfonline.com/doi/10.1080/0886022X.2024.2398826
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author Yingman Guo
Sufang Shi
Jinghong Zhao
Caili Wang
Zhangsuo Liu
Shuxia Fu
Nan Chen
Guisen Li
Lihua Wang
Zhaohui Ni
Haitao Zhang
Lingyun Lai
Jicheng Lv
Hong Zhang
author_facet Yingman Guo
Sufang Shi
Jinghong Zhao
Caili Wang
Zhangsuo Liu
Shuxia Fu
Nan Chen
Guisen Li
Lihua Wang
Zhaohui Ni
Haitao Zhang
Lingyun Lai
Jicheng Lv
Hong Zhang
author_sort Yingman Guo
collection DOAJ
description Background During the run-in phase of the TESTING study, approximately half of patients with IgA nephropathy (IgAN) were excluded due to proteinuria below 1 g/24 h after intensive supportive therapy. The long-term prognosis of these patients needs further investigation.Methods 112 screening failed patients in the TESTING study from 10 centers in China were enrolled in this retrospective study. The prognosis of 88 patients, who were excluded because of proteinuria below 1 g/24 h, was analyzed by Landmark Kaplan-Meier analysis. The composite kidney endpoint was defined by a ≥ 50% reduction in eGFR, ESKD (eGFR <15 mL/min per 1.73 m2), chronic dialysis for at least 6 months, or renal transplantation.Results In total, 88 patients were excluded due to proteinuria less than 1 g/24 h. During the follow-up, 73/88 (83.0%) patients received renin-angiotensin system blocker. 72/88 (81.8%) had stable proteinuria remission and did not receive immunosuppressive therapy (IST), and 16/88 (18.2%) received IST because of a relapse of proteinuria. Landmark Kaplan–Meier analysis revealed that, the kidney survival from dialysis or composite kidney outcome of these excluded patients with IST was similar to those without IST during the early stages of follow-up (dialysis, before 60 months, p = 0.778; composite kidney outcome, before 48 months, p = 0.862); whereas the risk for dialysis of patients receiving IST was significantly higher than those without IST after 60 months (OR = 11.3, p = 0.03). Similarly, the risk for the composite kidney outcome of patients receiving IST was also significantly higher than those without IST after 48 months (OR = 5.92, p = 0.029).Conclusions IgAN patients who maintained a persistent remission of proteinuria after intensive supportive therapy had a much better long-term kidney outcome than those who experienced a relapse of proteinuria and needed IST.
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spelling doaj-art-af1bfe26c31547d9a0f8a9e307fe24e52025-08-20T03:05:34ZengTaylor & Francis GroupRenal Failure0886-022X1525-60492024-12-0146210.1080/0886022X.2024.2398826Prognosis of IgA nephropathy patient with proteinuria remission by supportive therapy: cohort from screening failed Chinese patients in TESTING studyYingman Guo0Sufang Shi1Jinghong Zhao2Caili Wang3Zhangsuo Liu4Shuxia Fu5Nan Chen6Guisen Li7Lihua Wang8Zhaohui Ni9Haitao Zhang10Lingyun Lai11Jicheng Lv12Hong Zhang13Renal Division, Department of Medicine, Peking University First Hospital, Peking University Institute of Nephrology, Key Laboratory of Renal Disease, Ministry of Health of China, Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, ChinaRenal Division, Department of Medicine, Peking University First Hospital, Peking University Institute of Nephrology, Key Laboratory of Renal Disease, Ministry of Health of China, Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, ChinaDepartment of Nephrology, The Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing, ChinaThe First Affiliated Hospitals of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, ChinaDepartment of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, ChinaDepartment of Nephrology, The Second Hospital, Hebei Medical University, Shijiazhuang, Hebei, ChinaDepartment of Nephrology, Institute of Nephrology, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, ChinaRenal Division and Institute of Nephrology, Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Sichuan, ChinaDivision of Nephrology, Shanxi Medical University Second Hospital, Shanxi Kidney Disease Institute, Taiyuan, ChinaDepartment of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, ChinaNational Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing University School of Medicine, Nanjing, ChinaDivision of Nephrology, Huashan Hospital, Fudan University, Shanghai, ChinaRenal Division, Department of Medicine, Peking University First Hospital, Peking University Institute of Nephrology, Key Laboratory of Renal Disease, Ministry of Health of China, Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, ChinaRenal Division, Department of Medicine, Peking University First Hospital, Peking University Institute of Nephrology, Key Laboratory of Renal Disease, Ministry of Health of China, Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, ChinaBackground During the run-in phase of the TESTING study, approximately half of patients with IgA nephropathy (IgAN) were excluded due to proteinuria below 1 g/24 h after intensive supportive therapy. The long-term prognosis of these patients needs further investigation.Methods 112 screening failed patients in the TESTING study from 10 centers in China were enrolled in this retrospective study. The prognosis of 88 patients, who were excluded because of proteinuria below 1 g/24 h, was analyzed by Landmark Kaplan-Meier analysis. The composite kidney endpoint was defined by a ≥ 50% reduction in eGFR, ESKD (eGFR <15 mL/min per 1.73 m2), chronic dialysis for at least 6 months, or renal transplantation.Results In total, 88 patients were excluded due to proteinuria less than 1 g/24 h. During the follow-up, 73/88 (83.0%) patients received renin-angiotensin system blocker. 72/88 (81.8%) had stable proteinuria remission and did not receive immunosuppressive therapy (IST), and 16/88 (18.2%) received IST because of a relapse of proteinuria. Landmark Kaplan–Meier analysis revealed that, the kidney survival from dialysis or composite kidney outcome of these excluded patients with IST was similar to those without IST during the early stages of follow-up (dialysis, before 60 months, p = 0.778; composite kidney outcome, before 48 months, p = 0.862); whereas the risk for dialysis of patients receiving IST was significantly higher than those without IST after 60 months (OR = 11.3, p = 0.03). Similarly, the risk for the composite kidney outcome of patients receiving IST was also significantly higher than those without IST after 48 months (OR = 5.92, p = 0.029).Conclusions IgAN patients who maintained a persistent remission of proteinuria after intensive supportive therapy had a much better long-term kidney outcome than those who experienced a relapse of proteinuria and needed IST.https://www.tandfonline.com/doi/10.1080/0886022X.2024.2398826IgA nephropathyTESTING studyintensive supportive therapyscreening failed patients
spellingShingle Yingman Guo
Sufang Shi
Jinghong Zhao
Caili Wang
Zhangsuo Liu
Shuxia Fu
Nan Chen
Guisen Li
Lihua Wang
Zhaohui Ni
Haitao Zhang
Lingyun Lai
Jicheng Lv
Hong Zhang
Prognosis of IgA nephropathy patient with proteinuria remission by supportive therapy: cohort from screening failed Chinese patients in TESTING study
Renal Failure
IgA nephropathy
TESTING study
intensive supportive therapy
screening failed patients
title Prognosis of IgA nephropathy patient with proteinuria remission by supportive therapy: cohort from screening failed Chinese patients in TESTING study
title_full Prognosis of IgA nephropathy patient with proteinuria remission by supportive therapy: cohort from screening failed Chinese patients in TESTING study
title_fullStr Prognosis of IgA nephropathy patient with proteinuria remission by supportive therapy: cohort from screening failed Chinese patients in TESTING study
title_full_unstemmed Prognosis of IgA nephropathy patient with proteinuria remission by supportive therapy: cohort from screening failed Chinese patients in TESTING study
title_short Prognosis of IgA nephropathy patient with proteinuria remission by supportive therapy: cohort from screening failed Chinese patients in TESTING study
title_sort prognosis of iga nephropathy patient with proteinuria remission by supportive therapy cohort from screening failed chinese patients in testing study
topic IgA nephropathy
TESTING study
intensive supportive therapy
screening failed patients
url https://www.tandfonline.com/doi/10.1080/0886022X.2024.2398826
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