Efficacy and safety of immunosuppressive treatment in IgA nephropathy: a meta-analysis of randomized controlled trials

Abstract Background Immunosuppressive agents have been widely used in the treatment of IgA nephropathy (IgAN), but the efficacy and safety remain controversial. The recent STOP-IgAN and TESTING studies have again focused attention on the application of immunosuppressive agents in IgAN. This study in...

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Main Authors: Zheng Zhang, Yue Yang, Shi-min Jiang, Wen-ge Li
Format: Article
Language:English
Published: BMC 2019-08-01
Series:BMC Nephrology
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12882-019-1519-3
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author Zheng Zhang
Yue Yang
Shi-min Jiang
Wen-ge Li
author_facet Zheng Zhang
Yue Yang
Shi-min Jiang
Wen-ge Li
author_sort Zheng Zhang
collection DOAJ
description Abstract Background Immunosuppressive agents have been widely used in the treatment of IgA nephropathy (IgAN), but the efficacy and safety remain controversial. The recent STOP-IgAN and TESTING studies have again focused attention on the application of immunosuppressive agents in IgAN. This study investigated the benefits and risks of immunosuppressive agents in IgAN. Methods MEDLINE, EMBASE, the Cochrane Library, and article reference lists were searched for randomized controlled trials (RCTs) comparing immunosuppressive agents with any other non-immunosuppressive agents for treating IgAN. A meta-analysis was performed on the outcomes of proteinuria, creatinine (Cr), estimated glomerular filtration rate (eGFR), and adverse events in patients with IgAN, and trial sequential analyses were also performed for outcomes. Results Twenty-nine RCTs (1957 patients) that met our inclusion criteria were identified. Steroids (weighted mean difference [WMD] –0.70, 95% confidence interval [CI] –1.2 to − 0.20), non-steroidal immunosuppressive agents (NSI) (WMD –0. 43, 95% CI − 0.55 to − 0.31), and combined steroidal and non-steroidal immunosuppressive agents (S&NSI) (WMD –1.46, 95% CI − 2.13 to − 0.79) therapy significantly reduced proteinuria levels compared with the the control group. Steroid treatment significantly reduced the risk of end-stage renal disease (ESRD) (relative risk [RR] 0.39, CI 0.19 to 0.79) compared with the control group. The immunosuppressive therapy group showed significant increases in gastrointestinal, hematological, dermatological, and genitourinary side effects, as well as impaired glucose tolerance or diabetes. Hyperkalemia was more common in the control group. Conclusion Immunosuppressive therapy can significantly reduce proteinuria and ESRD risk in patients with IgAN, but with a concomitant increase in adverse reactions. Therefore, care is required in the application of immunosuppressive agents in IgAN.
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spelling doaj.art-432d901b5db64525be8917ec26706adc2022-12-21T22:55:02ZengBMCBMC Nephrology1471-23692019-08-0120111210.1186/s12882-019-1519-3Efficacy and safety of immunosuppressive treatment in IgA nephropathy: a meta-analysis of randomized controlled trialsZheng Zhang0Yue Yang1Shi-min Jiang2Wen-ge Li3Department of Nephrology, China-Japan Friendship HospitalDepartment of Nephrology, China-Japan Friendship HospitalDepartment of Nephrology, China-Japan Friendship HospitalDepartment of Nephrology, China-Japan Friendship HospitalAbstract Background Immunosuppressive agents have been widely used in the treatment of IgA nephropathy (IgAN), but the efficacy and safety remain controversial. The recent STOP-IgAN and TESTING studies have again focused attention on the application of immunosuppressive agents in IgAN. This study investigated the benefits and risks of immunosuppressive agents in IgAN. Methods MEDLINE, EMBASE, the Cochrane Library, and article reference lists were searched for randomized controlled trials (RCTs) comparing immunosuppressive agents with any other non-immunosuppressive agents for treating IgAN. A meta-analysis was performed on the outcomes of proteinuria, creatinine (Cr), estimated glomerular filtration rate (eGFR), and adverse events in patients with IgAN, and trial sequential analyses were also performed for outcomes. Results Twenty-nine RCTs (1957 patients) that met our inclusion criteria were identified. Steroids (weighted mean difference [WMD] –0.70, 95% confidence interval [CI] –1.2 to − 0.20), non-steroidal immunosuppressive agents (NSI) (WMD –0. 43, 95% CI − 0.55 to − 0.31), and combined steroidal and non-steroidal immunosuppressive agents (S&NSI) (WMD –1.46, 95% CI − 2.13 to − 0.79) therapy significantly reduced proteinuria levels compared with the the control group. Steroid treatment significantly reduced the risk of end-stage renal disease (ESRD) (relative risk [RR] 0.39, CI 0.19 to 0.79) compared with the control group. The immunosuppressive therapy group showed significant increases in gastrointestinal, hematological, dermatological, and genitourinary side effects, as well as impaired glucose tolerance or diabetes. Hyperkalemia was more common in the control group. Conclusion Immunosuppressive therapy can significantly reduce proteinuria and ESRD risk in patients with IgAN, but with a concomitant increase in adverse reactions. Therefore, care is required in the application of immunosuppressive agents in IgAN.http://link.springer.com/article/10.1186/s12882-019-1519-3IgA nephropathyImmunosuppressive agents
spellingShingle Zheng Zhang
Yue Yang
Shi-min Jiang
Wen-ge Li
Efficacy and safety of immunosuppressive treatment in IgA nephropathy: a meta-analysis of randomized controlled trials
BMC Nephrology
IgA nephropathy
Immunosuppressive agents
title Efficacy and safety of immunosuppressive treatment in IgA nephropathy: a meta-analysis of randomized controlled trials
title_full Efficacy and safety of immunosuppressive treatment in IgA nephropathy: a meta-analysis of randomized controlled trials
title_fullStr Efficacy and safety of immunosuppressive treatment in IgA nephropathy: a meta-analysis of randomized controlled trials
title_full_unstemmed Efficacy and safety of immunosuppressive treatment in IgA nephropathy: a meta-analysis of randomized controlled trials
title_short Efficacy and safety of immunosuppressive treatment in IgA nephropathy: a meta-analysis of randomized controlled trials
title_sort efficacy and safety of immunosuppressive treatment in iga nephropathy a meta analysis of randomized controlled trials
topic IgA nephropathy
Immunosuppressive agents
url http://link.springer.com/article/10.1186/s12882-019-1519-3
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AT shiminjiang efficacyandsafetyofimmunosuppressivetreatmentiniganephropathyametaanalysisofrandomizedcontrolledtrials
AT wengeli efficacyandsafetyofimmunosuppressivetreatmentiniganephropathyametaanalysisofrandomizedcontrolledtrials