Impact of C-reactive protein on the effect of Roxadustat for the treatment of anemia in chronic kidney disease: a systematic review of randomized controlled trials

Abstract Background Chronic inflammation, reflected by an increased blood C-reactive protein (CRP) level, is common in patients with chronic kidney disease (CKD) and is involved in the development of renal anemia. This systematic review aims to investigate the impacts of CRP on the efficacy of hypox...

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Main Authors: Xiaoyu Luo, Guoli Li, Hongyu Yang, Lang Chen, Yinyan Gao, Jing Cong, Hui Luo, Weiru Zhang
Format: Article
Language:English
Published: BMC 2024-02-01
Series:BMC Nephrology
Subjects:
Online Access:https://doi.org/10.1186/s12882-024-03474-5
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author Xiaoyu Luo
Guoli Li
Hongyu Yang
Lang Chen
Yinyan Gao
Jing Cong
Hui Luo
Weiru Zhang
author_facet Xiaoyu Luo
Guoli Li
Hongyu Yang
Lang Chen
Yinyan Gao
Jing Cong
Hui Luo
Weiru Zhang
author_sort Xiaoyu Luo
collection DOAJ
description Abstract Background Chronic inflammation, reflected by an increased blood C-reactive protein (CRP) level, is common in patients with chronic kidney disease (CKD) and is involved in the development of renal anemia. This systematic review aims to investigate the impacts of CRP on the efficacy of hypoxia-inducible factor-prolyl hydroxylase inhibitors (HIF-PHIs) in the treatment of renal anemia in patients with CKD. Methods We conducted a comprehensive search of electronic databases including Pubmed, Web of Science, Embase, Cochrane Library, CNKI, Wanfang, and the International Clinical Trials Registry Platform (ICTRP), from their inception to May 19, 2022. We systematically reviewed evidence from randomized controlled trials using HIF-PHIs for renal anemia treatment. The mean difference (MD) in changes in hemoglobin concentration (∆Hb) before and after treatment served as the meta-analysis outcome, utilizing a random-effects model. We compared groups with CRP levels greater than or equal to the upper limit of normal (ULN) and less than the ULN. Additionally, further analysis was conducted in the CRP ≥ ULN group comparing HIF-PHIs and erythropoiesis-stimulating agents (ESA). Results A total of 7 studies from 6 publications were included in the analysis. In the comparison between the CRP ≥ ULN group and the CRP < ULN group, 524 patients from 4 studies were incorporated into the analysis. All patients received roxadustat as the primary intervention. The pooled results revealed no significant difference in ΔHb between patients with CRP ≥ ULN and CRP < ULN at baseline (Mean Difference: 0.00, 95% Confidence Interval: -0.32 to 0.33, P = 0.99). Moreover, within the CRP ≥ ULN group, three studies involving 1399 patients compared the efficacy of roxadustat and erythropoiesis-stimulating agents (ESAs). The results indicated no significant difference in ΔHb between patients treated with ESAs and HIF-PHIs (Mean Difference: 0.24, 95% Confidence Interval: -0.08 to 0.56, P = 0.14). In terms of medication dosage, an increase in ESA dose over time was observed across various studies, particularly evident in the CRP ≥ ULN group, while the dose of roxadustat remains constant over time and is not influenced by the baseline levels of CRP. Conclusions Our systematic review demonstrates that roxadustat exhibits similar efficacy across different CRP levels. Moreover, within the CRP ≥ ULN group, roxadustat can maintain efficacy comparable to ESA without the necessity for dose escalation. Trial registration CRD42023396704.
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spelling doaj.art-851fc23caa8247e88a3a82c1f622aed42024-03-05T17:57:04ZengBMCBMC Nephrology1471-23692024-02-0125111810.1186/s12882-024-03474-5Impact of C-reactive protein on the effect of Roxadustat for the treatment of anemia in chronic kidney disease: a systematic review of randomized controlled trialsXiaoyu Luo0Guoli Li1Hongyu Yang2Lang Chen3Yinyan Gao4Jing Cong5Hui Luo6Weiru Zhang7Department of Rheumatology and Immunology, Xiangya Hospital, Central South UniversityDepartment of Nephrology, Hunan Clinical Research Center for Chronic Kidney Disease, Hunan Provincial People’s Hospital, The First Affiliated Hospital of Hunan Normal UniversityDepartment of Rheumatology and Immunology, Xiangya Hospital, Central South UniversityDepartment of Hepatopancreatobiliary Surgery, The Third Xiangya Hospital, Central South UniversityDepartment of Epidemiology and Biostatistics, Xiangya School of Public Health, Central South UniversityDepartment of Rheumatology and Immunology, Xiangya Hospital, Central South UniversityDepartment of Rheumatology and Immunology, Xiangya Hospital, Central South UniversityNational Clinical Research Center for Geriatric Disorders (Xiangya Hospital)Abstract Background Chronic inflammation, reflected by an increased blood C-reactive protein (CRP) level, is common in patients with chronic kidney disease (CKD) and is involved in the development of renal anemia. This systematic review aims to investigate the impacts of CRP on the efficacy of hypoxia-inducible factor-prolyl hydroxylase inhibitors (HIF-PHIs) in the treatment of renal anemia in patients with CKD. Methods We conducted a comprehensive search of electronic databases including Pubmed, Web of Science, Embase, Cochrane Library, CNKI, Wanfang, and the International Clinical Trials Registry Platform (ICTRP), from their inception to May 19, 2022. We systematically reviewed evidence from randomized controlled trials using HIF-PHIs for renal anemia treatment. The mean difference (MD) in changes in hemoglobin concentration (∆Hb) before and after treatment served as the meta-analysis outcome, utilizing a random-effects model. We compared groups with CRP levels greater than or equal to the upper limit of normal (ULN) and less than the ULN. Additionally, further analysis was conducted in the CRP ≥ ULN group comparing HIF-PHIs and erythropoiesis-stimulating agents (ESA). Results A total of 7 studies from 6 publications were included in the analysis. In the comparison between the CRP ≥ ULN group and the CRP < ULN group, 524 patients from 4 studies were incorporated into the analysis. All patients received roxadustat as the primary intervention. The pooled results revealed no significant difference in ΔHb between patients with CRP ≥ ULN and CRP < ULN at baseline (Mean Difference: 0.00, 95% Confidence Interval: -0.32 to 0.33, P = 0.99). Moreover, within the CRP ≥ ULN group, three studies involving 1399 patients compared the efficacy of roxadustat and erythropoiesis-stimulating agents (ESAs). The results indicated no significant difference in ΔHb between patients treated with ESAs and HIF-PHIs (Mean Difference: 0.24, 95% Confidence Interval: -0.08 to 0.56, P = 0.14). In terms of medication dosage, an increase in ESA dose over time was observed across various studies, particularly evident in the CRP ≥ ULN group, while the dose of roxadustat remains constant over time and is not influenced by the baseline levels of CRP. Conclusions Our systematic review demonstrates that roxadustat exhibits similar efficacy across different CRP levels. Moreover, within the CRP ≥ ULN group, roxadustat can maintain efficacy comparable to ESA without the necessity for dose escalation. Trial registration CRD42023396704.https://doi.org/10.1186/s12882-024-03474-5C-reactive proteinAnemiaCKDSystematic reviewRoxadustatClinical trials
spellingShingle Xiaoyu Luo
Guoli Li
Hongyu Yang
Lang Chen
Yinyan Gao
Jing Cong
Hui Luo
Weiru Zhang
Impact of C-reactive protein on the effect of Roxadustat for the treatment of anemia in chronic kidney disease: a systematic review of randomized controlled trials
BMC Nephrology
C-reactive protein
Anemia
CKD
Systematic review
Roxadustat
Clinical trials
title Impact of C-reactive protein on the effect of Roxadustat for the treatment of anemia in chronic kidney disease: a systematic review of randomized controlled trials
title_full Impact of C-reactive protein on the effect of Roxadustat for the treatment of anemia in chronic kidney disease: a systematic review of randomized controlled trials
title_fullStr Impact of C-reactive protein on the effect of Roxadustat for the treatment of anemia in chronic kidney disease: a systematic review of randomized controlled trials
title_full_unstemmed Impact of C-reactive protein on the effect of Roxadustat for the treatment of anemia in chronic kidney disease: a systematic review of randomized controlled trials
title_short Impact of C-reactive protein on the effect of Roxadustat for the treatment of anemia in chronic kidney disease: a systematic review of randomized controlled trials
title_sort impact of c reactive protein on the effect of roxadustat for the treatment of anemia in chronic kidney disease a systematic review of randomized controlled trials
topic C-reactive protein
Anemia
CKD
Systematic review
Roxadustat
Clinical trials
url https://doi.org/10.1186/s12882-024-03474-5
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