Comparison between Intravenous Iron and Oral Iron Preparations for the Treatment of Anemia of Chronic Kidney Disease - A Systematic Review and Meta-Analysis

Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 3748-3748
Author(s):  
Anat Gafter-Gvili ◽  
Benaya Rozen-Zvi ◽  
Mical Paul ◽  
Leonard Leibovici ◽  
Gafter Uzi ◽  
...  

Abstract Background: There is confounding data regarding the best method of iron supplementation in chronic kidney disease (CKD), without a consistent approach in clinical practice. Objectives: To evaluate the efficacy and safety of intravenous (IV) iron versus oral iron in patients treated for anemia of CKD. Methods: Systematic review and meta-analysis of randomized controlled trials comparing IV iron preparation with oral iron preparation for the treatment of anemia in patients with CKD (stage III, IV and V). The Cochrane Library, MEDLINE, conference proceedings and references were searched until 2007. Primary outcomes: absolute hemoglobin (Hb) level or change in Hb level from baseline at two months or at end of study; all-cause mortality. Secondary outcomes: need for renal replacement therapy (RRT) in predialysis patient and adverse events. Weighted mean differences (WMD) for outcomes with continuous variables and relative risks (RR) for dichotomous outcomes with 95% confidence intervals (CI) were estimated and pooled. Results: Our search yielded 11 trials which compared IV iron preparations (iron sucrose, iron gluconate or iron dextran) to oral iron. Compared to oral iron, there was a significant rise in Hb level in the IV iron treated hemodialysis patients (WMD 1.17; 95%CI 0.19–2.15, fig). Significant heterogeneity was observed due to different baseline Hb values and baseline iron status, different dosages of oral iron, and different dosages of erythropoiesis stimulating agents (ESA). For predialysis patients, there was a small but significant difference in the Hb level favoring the IV iron group (WMD 0.28; 95% CI 0.15–0.4, fig). For both groups effect estimates were not influenced by ESA administration. In predialysis patients, there was no significant difference in the risk for requiring RRT during the trial between the different groups (RR 0.63; 95%CI 0.25–1.65). Data on all-cause mortality were sparse (RR 0.54; 95%CI 0.09–3.13, 3 trials) and there was no difference in adverse events (RR 0.9; 95%CI 0.65–1.24) between the IV and oral treated patients. However, discontinuations of treatment were more common (RR 3.27; 95%CI 1.15–9.26) for the IV iron treated patients. Conclusions: Our review demonstrates that dialysis patients treated with IV iron have better Hb response than patients treated with oral iron. For predialysis patients, this effect is very small. IV iron should be preferred in the treatment of anemia in dialysis patients. In predialysis patients the slight advantage in Hb response should be weighed against the inconvenience and cost of IV iron treatment.

2019 ◽  
Vol 13 (5) ◽  
pp. 842-854
Author(s):  
Panayiotis Kouis ◽  
Andreas Kousios ◽  
Athina Kanari ◽  
Daphne Kleopa ◽  
Stephania I Papatheodorou ◽  
...  

Abstract Background Non-invasive cardiovascular disease (CVD) risk prediction, in subclinical stages, aiming to stratify patients and tailor interventions remains an unmet need in chronic kidney disease (CKD). In this meta-analysis, we summarize the association of carotid intima–media thickness (cIMT), coronary artery calcium score (CACS) and pulse wave velocity (PWV) with all-cause mortality, cardiovascular (CV) mortality and CV events in non-dialysis CKD and patients on haemodialysis. Methods Systematic review and meta-analysis of prospective cohort studies. Results Out of 27 984 records, a total of 45 studies were eligible for quantitative synthesis; 11 for cIMT, 18 for CACS and 16 for PWV involving 2235, 4904 and 5717 patients, respectively. Meta-analysis was possible from pooled data of five cIMT studies (708 subjects), eight CACS studies (862 subjects) and nine PWV studies (1508 subjects). In dialysis patients, cIMT was associated with all-cause mortality [relative risk (RR) per unit increase: 1.08, 95% confidence interval (CI) 1.00–1.17, I2: 68%] and CV mortality (RR: 1.29, 95% CI 1.14–1.47, I2: 0%). High versus low CACS was associated with all-cause mortality (RR: 2.51, 95% CI 1.66–3.79, I2: 5.7%) and CV events (RR: 3.77 95% CI 2.16–6.58, I2: 20.2%). High versus low PWV was associated with all-cause (RR: 5.34, 95% CI 3.01–9.47, I2: 0%) and CV mortality (RR: 8.55, 95% CI 4.37–16.73, I2: 0%). The combined estimated for all-cause mortality per 1 m/s increment unit in PWV was 1.25 (95% CI 1.17–1.34, I2: 0%) and for CV mortality was 1.24 (95% CI 1.16–1.34, I2: 15.5%). In non-dialysis patients, CACS was associated with CV events (RR: 4.02, 95% CI 1.57–10.29, I2: 63.4%). High versus low PWV was associated with all-cause mortality (RR: 2.52, 95% CI 1.40–4.55, I2: 62.6%). Conclusions Non-invasive measures of atherosclerosis and arterial stiffening are associated with all-cause and CV mortality as well as CV events among patients with all stages of CKD. These markers could be considered for the evaluation of CV morbidity and mortality risks. Moreover, the results of this meta-analysis support the study of interventions, with effect on these markers of vascular disease, on long-term CVD outcomes.


2020 ◽  
pp. 089686082091871
Author(s):  
Guo Xieyi ◽  
Tang Xiaohong ◽  
Wu Xiaofang ◽  
Li Zi

An increasing number of studies have focused on whether peritoneal dialysis (PD) can be used for the urgent initiation of dialysis in patients with chronic kidney disease (CKD). We performed this systematic review and meta-analysis to evaluate the feasibility and safety of urgent-start PD compared with those of planned PD and urgent-start hemodialysis (HD) in this population. PubMed, EMBASE, the Cochrane Central Register of Controlled Trials (CENTRAL), clinicaltrials.gov , and China National Knowledge Infrastructure (CNKI) were searched for relevant studies. Conference abstracts were also searched in relevant websites. The meta-analysis was performed using RevMan 5.3 software. A total of 15 trials involving 2426 participants were identified. The quality of the included studies was fair, but the quality of evidence was very low. Unadjusted meta-analysis showed that urgent-start PD had significantly higher mortality than planned PD, while adjusted meta-analysis did not show a significant difference. Higher incident of leakage and catheter mechanical dysfunction were observed in urgent-start PD. However, peritonitis, exit-site infection, or PD technique survival were comparable between urgent-start and planned PD. The all-cause mortality was comparable in urgent-start PD and urgent-start HD. Bacteremia was significantly lower in the urgent-start PD group than with urgent-start HD. Based on limited evidences, PD may be a viable alternative to HD for CKD patients requiring urgent-start dialysis. Because of the inconsistent results and the low quality of evidence, a definitive conclusion could not be drawn for whether urgent-start PD was comparable with planned PD. Therefore, high-quality and large-scale studies are needed in the future.


2017 ◽  
Vol 25 (2) ◽  
pp. 80-92 ◽  
Author(s):  
Li Luo ◽  
Meiqin Ye ◽  
Jiaowang Tan ◽  
Qiong Huang ◽  
Xindong Qin ◽  
...  

Background Most patients with chronic kidney disease (CKD) fail to achieve blood pressure (BP) management as recommended. Meanwhile, the effects of promising intervention and telehealth on BP control in CKD patients remain unclear. We aimed to evaluate the efficacy of telehealth for BP in CKD non-dialysis patients. Methods Databases including MEDLINE, EMBASE, CENTRAL, CNKI, Wanfang, VIP and CBM were systematically searched for randomised controlled trials or quasi-randomised controlled trials on telehealth for BP control of CKD3-5 non-dialysis patients. We analysed systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), serum creatinine, and estimated glomerular filtration rate (eGFR) with a fixed-effects model. Results Three studies, with total 680 subjects, were included in our systematic review and two were included for meta-analysis. Pooled estimates showed decreased SBP (pooled mean difference (MD), −5.10; 95% confidence interval (CI), −11.34, 1.14; p > 0.05, p = 0.11), increased DBP (pooled MD, 0.45; 95% CI, −4.24, 5.13; p > 0.05, p = 0.85), decreased serum creatinine (pooled MD, −0.38; 95% CI, −0.83, 0.07; p > 0.05, p = 0.10) and maintained eGFR (pooled MD, 4.72; 95% CI, −1.85, 11.29; p > 0.05, p = 0.16) in the telehealth group. There was no significant difference from the control group. MAP (MD, 0.6; 95% CI, −6.61, 7.81; p > 0.05, p = 0.87) and BP control rate ( p > 0.05, p = 0.8), respectively, shown in two studies also demonstrated no statistical significance in the telehealth group. Conclusions There was no statistically significant evidence to support the superiority of telehealth for BP management in CKD patients. This suggests further studies with improved study design and optimised intervention are needed in the future.


2021 ◽  
Vol 11 ◽  
Author(s):  
Qiyan Zheng ◽  
Yahui Wang ◽  
Huisheng Yang ◽  
Luying Sun ◽  
Xinwen Fu ◽  
...  

Objective: Daprodustat is a novel oral agent in treating anemia of chronic kidney disease (CKD), and several clinical trials have been conducted to compare daprodustat with recombinant human erythropoietin (rhEPO) or placebo. Our systematic review aimed to investigate the efficacy and safety of daprodustat for anemia treatment in both dialysis-dependent (DD) and non-dialysis-dependent (NDD) patients.Methods: Six databases were searched for randomized controlled trials (RCTs) reporting daprodustat vs. rhEPO or placebo for anemia patients in CKD. The outcome indicators were focused on hemoglobin (Hb), ferritin, transferrin saturation (TSAT), total iron-binding capacity (TIBC), vascular endothelial growth factor (VEGF), and serious adverse events (SAEs).Results: Eight eligible studies with 1,516 participants were included. For both NDD and DD patients, changes in Hb levels from baseline were significantly higher in daprodustat group than that in the placebo (mean difference (MD) = 1.73, [95% confidence interval (CI), 0.34 to 3.12], p = 0.01; MD = 1.88, [95% CI, 0.68 to 3.09], p = 0.002; respectively), and there was no significant difference between daprodustat and rhEPO group (MD = 0.05, [95% CI, −0.49 to 0.59], p = 0.86; MD = 0.12, [95% CI, −0.28 to 0.52], p = 0.55; respectively). The indexes of iron metabolism were improved significantly in the daprodustat group compared to placebo- or rhEPO-treated patients, while there was no similar change in terms of TSAT for DD patients. Furthermore, no trend of increasing plasma VEGF was observed in daprodustat-treated subjects. As for safety, there was no significant difference in the incidence of SAEs between daprodustat and placebo treatment, while the incidence of SAEs in the daprodustat group was significantly lower than that in the rhEPO group.Conclusion: Daprodustat was efficacious and well tolerated for anemia in both NDD and DD patients in the short term based on current RCTs. And daprodustat may become an effective alternative for treatment of anemia with CKD. Since the application of daprodustat is still under exploration, future researches should consider the limitations of our study to evaluate the value of daprodustat.


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