scholarly journals Administration of Ferric Citrate Hydrate Decreases Circulating FGF23 Levels Independently of Serum Phosphate Levels in Hemodialysis Patients with Iron Deficiency

Nephron ◽  
2015 ◽  
Vol 131 (3) ◽  
pp. 161-166 ◽  
Author(s):  
Akira Iguchi ◽  
Junichiro J. Kazama ◽  
Suguru Yamamoto ◽  
Kazuhiro Yoshita ◽  
Yasuo Watanabe ◽  
...  
Keyword(s):  
Iron Deficiency ◽  
Hemodialysis Patients ◽  
Serum Phosphate ◽  
Ferric Citrate

Ferric Citrate Decreases Fibroblast Growth Factor 23 and Improves Erythropoietin Responsiveness in Hemodialysis Patients

2018 ◽  
Vol 47 (6) ◽  
pp. 406-414 ◽  
Author(s):  
Noriaki Maruyama ◽  
Tomoyasu Otsuki ◽  
Yoshinori Yoshida ◽  
Chinami Nagura ◽  
Maki Kitai ◽  
...  
Keyword(s):  
Growth Factor ◽  
Fibroblast Growth Factor ◽  
Fibroblast Growth Factor 23 ◽  
Hemodialysis Patients ◽  
Serum Phosphate ◽  
Lanthanum Carbonate ◽  
Ferric Citrate ◽  
Control Group ◽  
Serum Phosphate Level ◽  
Fibroblast Growth

Background: Serum phosphate and vitamin D receptor activator regulate fibroblast growth factor 23 (FGF23), and iron may modulate FGF23 metabolism. The aim of the present study was to elucidate the effects of ferric citrate hydrate and lanthanum carbohydrate on serum FGF23 levels in hemodialysis patients. Methods: This prospective, open-label, multicenter study enrolled 60 patients on hemodialysis treated with lanthanum carbonate. Patients were randomly assigned to 2 groups: those switching from lanthanum carbonate to ferric citrate hydrate (ferric citrate group, n = 30) or those continuing lanthanum carbonate (control group, n = 30). Patients were monitored for 24 weeks. Endpoints included changes in FGF23, phosphate, and the dose of erythropoiesis stimulating agent (ESA), erythropoietin responsiveness index (ERI), and adverse events. Results: FGF-23 levels were significantly lower in the ferric citrate group compared with the levels in the control group (change from baseline –6,160 vs. –1,118 pg/mL; p = 0.026). There were no significant changes in serum calcium, phosphate, and intact parathyroid hormone levels in either group. The ferric citrate group had significantly increased serum iron, ferritin, and transferrin saturation. Hemoglobin levels were significantly elevated, and the dose of ESA was significantly decreased in the ferric citrate group but not in the control group. ERI and the dose of intravenous saccharated ferric oxide were significantly lower in the ferric citrate group compared with those of the control group (p = 0.015 and p = 0.002). Conclusion: In patients on hemodialysis, 24-week treatment with ferric citrate hydrate resulted in significant reduction in FGF23 and ERI independently of serum phosphate level.

Ferric Citrate Dosing in Iron Deficiency Anemia in Nondialysis-Dependent Chronic Kidney Disease

2021 ◽  
pp. 1-10
Author(s):  
Pablo E. Pergola ◽  
Diogo Belo ◽  
Paul Crawford ◽  
Moustafa Moustafa ◽  
Wenli Luo ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Iron Deficiency ◽  
Iron Deficiency Anemia ◽  
Ferric Citrate ◽  
Deficiency Anemia ◽  
Open Label ◽  
Starting Dose ◽  
Dosing Regimens

<b><i>Introduction:</i></b> Ferric citrate (FC) is indicated as an oral iron replacement for iron deficiency anemia in adult patients with chronic kidney disease (CKD) not on dialysis. The recommended starting dose is one 1-g tablet three times daily (TID). This study investigated long-term efficacy and safety of different FC dosing regimens for treating anemia in nondialysis-dependent CKD (NDD-CKD). <b><i>Methods:</i></b> In this phase 4, randomized, open-label, multicenter study, patients with anemia with NDD-CKD (estimated glomerular filtration rate, ≥20 mL/min and &#x3c;60 mL/min) were randomized 1:1 to one FC tablet (1-g equivalent to 210 mg ferric iron) TID (3 g/day) or 2 tablets twice daily (BID; 4 g/day). At week 12, dosage was increased to 2 tablets TID (6 g/day) or 3 tablets BID (6 g/day) in patients whose hemoglobin (Hb) levels increased &#x3c;0.5 g/dL or were &#x3c;10 g/dL. Primary endpoint was mean change in Hb from baseline to week 24. <b><i>Results:</i></b> Of 484 patients screened, 206 were randomized and 205 received FC. Mean (standard deviation) changes from baseline in Hb at week 24 were 0.77 (0.84) g/dL with FC TID 3 g/day and 0.70 (0.98) g/dL with FC BID 4 g/day. <b><i>Discussion/Conclusions:</i></b> FC administered BID and TID for 48 weeks was safe and effective for treating anemia in this population, supporting potentially increased dosing flexibility.

Dose-Response and Efficacy of Ferric Citrate to Treat Hyperphosphatemia in Hemodialysis Patients: A Short-term Randomized Trial

2013 ◽  
Vol 61 (5) ◽  
pp. 759-766 ◽  
Author(s):  
Jamie P. Dwyer ◽  
Mohammed Sika ◽  
Gerald Schulman ◽  
Ingrid J. Chang ◽  
Michael Anger ◽  
...  
Keyword(s):  
Randomized Trial ◽  
Dose Response ◽  
Hemodialysis Patients ◽  
Ferric Citrate ◽  
Short Term

scholarly journals MO577EXPANDING THE POTENTIAL BENEFITS OF FERRIC CITRATE FOR IMPROVING IRON-DEFICIENCY ANAEMIA AND MINERAL BONE DISORDER PARAMETERS IN NON-DIALYSIS-DEPENDENT CHRONIC KIDNEY DISEASE PATIENTS: A META-ANALYSIS OF RANDOMIZED CONTROLLED TRIALS

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
Boby Pratama Putra ◽  
Felix Nugraha Putra
Keyword(s):  
Chronic Kidney Disease ◽  
Iron Deficiency ◽  
Iron Deficiency Anaemia ◽  
Fibroblast Growth Factors ◽  
Ferric Citrate ◽  
Controlled Trials ◽  
Fibroblast Growth ◽  
Deficiency Anaemia ◽  
Randomized Controlled ◽  
Potential Benefits

Abstract Background and Aims Most of non-dialysis-dependent chronic kidney disease (NDD-CKD) patients will suffer from iron-deficiency anaemia (IDA) also mineral and bone disorders (CKD-MBD) as consequences of CKD progression. Ferric citrate (FC) is an iron-based phosphate binder that based on previous studies showed efficacies in improving IDA and CKD-MBD parameters although the results were still inconclusive. This study aims to establish the overall efficacies of FC in improving IDA and CKD-MBD parameters in NDD-CKD patients. Method We did comprehensive searching using predefined keywords in online databases of Pubmed, EMBASE, ScienceDirect, and The Cochrane Library, to include all relevant studies from 2000-2020. We included all randomized controlled trials (RCTs) accessing the efficacies of FC in improving IDA and CKD-MBD parameters compared with standard care (SC) in NDD-CKD patients. The CKD-MBD parameters analysed in this study are changes in serum phosphorus (P), serum calcium ions (Ca), alkaline phosphatase (ALP), intact fibroblast growth factors-23 (iFGF-23), C-terminal fibroblast growth factors-23 (cFGF-23), and intact parathyroid hormone (iPTH), while the IDA parameters analysed are changes of haemoglobin (Hb), serum iron (Fe), transferrin saturation (TSAT), and ferritin. Bias risk was accessed by using the revised Cochrane Risk-of-bias (RoB-2) tool. Analysis was performed to provide standard mean difference (SMD) with 95% confidence interval (CI) using random-effect heterogeneity test. Results We included six RCTs with total of 1,082 participants met our inclusion criteria. The FC significantly improve CKD-MBD parameters of P (SMD = -0.84. 95% CI = -1.21 to -0.07, p&lt;0.00001, I2 = 74%), iFGF-23 (SMD = -0.43. 95% CI = -0.73 to -0.13, p = 0.005, I2 = 73%), cFGF-23 (SMD = -0.74. 95% CI = -1.12 to -0.35, p = 0.0002, I2 = 78%), and iPTH (SMD = -0.23. 95% CI = -0.40 to -0.06, p = 0.008, I2 = 0%), while the improvement of Ca (SMD = 0.16. 95% CI = -0.07 to 0.38, p = 0.17, I2 = 0%) and ALP (SMD = 0.03. 95% CI = -0.22 to 0.28, p = 0.81, I2 = 14%) are not statistically significant compared with the SC group. The FC also significantly improve IDA parameters of Hb (SMD = 1.10. 95% CI = 0.06 to 2.14, p = 0.04, I2 = 97%), TSAT (SMD = 1.18. 95% CI = 0.67 to 1.69, p&lt;0.00001, I2 = 72%), and ferritin (SMD = 1.10. 95% CI = 0.34 to 1.86, p = 0.004, I2 = 87%) compared with the SC group, unless the improvement of Fe is not statistically significant (SMD = 1.34. 95% CI = -0.28 to 2.95, p = 0.11, I2 = 97%). Conclusion The ferric citrate shows potential benefits for improving iron-deficiency anaemia and CKD-MBD parameters in NDD-CKD patients. Nevertheless, further trials are needed to establish the efficacies.

scholarly journals Extended erythrocyte and reticulocyte parameters in the diagnosis of iron deficiency in hemodialysis patients

2020 ◽  
Vol 3 (4) ◽  
pp. 109-113
Author(s):  
Mohammed Nazim Bennaoum ◽  
◽  
Affaf Adda ◽  
Mohamed Chekkal ◽  
Fatima Seghier ◽  
...  
Keyword(s):  
Iron Deficiency ◽  
Iron Status ◽  
High Sensitivity ◽  
Hemodialysis Patients ◽  
Chronic Hemodialysis ◽  
Red Cells ◽  
Corpuscular Hemoglobin ◽  
Cellular Concentration ◽  
Stage Renal Disease ◽  
End Stage

Objective: Iron deficiency (ID) is a frequent complication in end stage renal insufficiency. These patients have to be diagnosed and treated to reduce the prevalence of anemia. Functional iron deficiency (FID) is a situation that can disrupt biochemical iron tests and mask an eventual association with ID. In this study, we tried to prove the ability of extended parameters of red cells and reticulocytes to diagnose ID without being influenced by FID. Design and methods: 164 chronic hemodialysis patients (CHP) in end stage renal disease were enrolled. Research parameters of red cells and reticulocytes determined on ADVIA 2120i were studied in the diagnosis of ID associated or not with chronic inflammation. Results: Parameters such as corpuscular hemoglobin of mature red cells (CHm), corpuscular hemoglobin of reticulocytes (CHr), cellular concentration of hemoglobin in mature red cells (CHCMm), cellular concentration of hemoglobin in reticulocytes (CHCMr) and percentage of microcytic and hypochromic red cells (HYMI) showed a high sensitivity to diagnose ID. However, the distinction of combined iron deficiency (CID) from other entities was not possible with all parameters. In chronic inflammatory states, the decrease of CHm, CHCMm and CHCMr with the rise of percentage hypochromic mature red cells (HYPOm) and reticulocytes (HYPOr) is in favor of CID. So, determination of inflammatory state is needed to complete research parameters of blood count in CHP. Conclusion: Extended erythrocyte and reticulocyte parameters can be useful to check iron status in CHP.

Effects of Oral Vitamin C on Hepcidin Levels and Erythropoietin Requirements in Functional Iron Deficiency Anemia among Hemodialysis Patients

QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Mahmoud Mohamed Zaki Ali ◽  
Maha Abd ElMoniem Behairy ◽  
Reem Mohsen El Sharabasy ◽  
Ahmed Hamed Ahmed Gharib
Keyword(s):  
Iron Deficiency ◽  
Vitamin C ◽  
Iron Deficiency Anemia ◽  
Hemodialysis Patients ◽  
Deficiency Anemia ◽  
Study Group ◽  
Oral Vitamin ◽  
Functional Iron Deficiency ◽  
Serum Hepcidin ◽  
Hs Crp

Abstract Background Hepcidin has long been postulated as a key regulatory peptide in iron homeostasis. Its reduced clearance and elevated levels in hemodialysis (HD) patients lead to functional iron deficiency (FID) and ESA resistance. Vitamin C may be used as adjuvant therapy in FID anemia, but there are limited studies investigating the direct relation between vitamin C and hepcidin levels in HD patients. We aimed to test the reducing effect of Oral vitamin C therapy on hepcidin levels among hemodialysis patients with functional iron deficiency anemia. Patients and Methods This study is an open label randomized controlled clinical trial. It was conducted in the hemodialysis units of Ain Shams University hospitals. 48 adult prevalent HD patients were included and were divided into two groups. Group 1 (study group) included 31 patients who received the conventional treatment of erythropoietin stimulating agents (ESAs) together with oral supplementation of vitamin C 500 mg every other day for 3 months in addition to IV iron therapy. Group 2 (control group) included 17 patients who received only the conventional therapy of ESAs according to their hemoglobin (Hb) levels in addition to IV iron therapy. Laboratory parameters including serum hepcidin levels, highly sensitive CRP (hs-CRP) titer, CBC, kidney function tests and iron indices were measured at the baseline of the study and after 3 months. Results Oral vitamin C therapy resulted in a statistically significant reduction in both hepcidin and hs-CRP levels in the study group after 3 months. The study group showed a significant reduction in serum iron and ferritin levels (P &lt; 0.05). A Decrease in EPO requirements and elevation of hemoglobin level were observed in the study group but were not statistically significant as a short term effect of oral vitamin C, in comparison to the control group. A highly significant correlation was observed between serum hepcidin and hs-CRP (R=0.46, P&lt;0.01). Conclusion Oral vitamin C may be a promising therapy in decreasing serum hepcidin and hs-CRP levels in prevalent hemodialysis patients with functional iron deficiency anemia.

Predictive value of ankle–brachial index for long-term events of ischemic stroke in hemodialysis patients

Vascular ◽  
2020 ◽  
pp. 170853812092595
Author(s):  
Kai-Ni Lee ◽  
Li-Ping Chou ◽  
Chi-Chu Liu ◽  
Tsang-Shan Chen ◽  
Eric Kim-Tai Lui ◽  
...  
Keyword(s):  
Risk Factors ◽  
Regression Analysis ◽  
Ischemic Stroke ◽  
Cox Regression ◽  
Ankle Brachial Index ◽  
Hemodialysis Patients ◽  
Serum Phosphate ◽  
Cox Regression Analysis

Objectives The ankle–brachial index is a noninvasive modality to evaluate atherosclerosis and is a predictive role for future cardiovascular events and mortality. However, few studies have evaluated its relation to long-term future ischemic stroke in hemodialysis patients. Therefore, we examined the relationship between ankle–brachial index and ischemic stroke events among hemodialysis patients in a seven-year follow-up. Methods A total of 84 patients were enrolled. Ankle–brachial index was assessed in January 2009. Primary outcomes included ischemic stroke. An ankle–brachial index < 0.9 was considered abnormal and 1.4 ≥ ankle–brachial index ≥ 0.9 to be normal ankle–brachial index. Results Mean values for ankle–brachial index were 0.98 ± 0.21at study entrance. In addition, 28 patients encountered ischemic stroke in the seven-year follow-up. In univariate Cox regression analysis, old age (hazard ratio (HR): 1.065, 95% confidence interval (CI): 1.030–1.102, p < 0.001), low seven-year averaged serum phosphate levels (HR: 0.473, 95% CI: 0.306–0.730, p = 0.001), and abnormal ankle–brachial index (HR: 0.035, 95% CI: 0.009–0.145, p < 0.001) were risk factors for ischemic stroke. In multivariate Cox regression analysis for significant variables in univariate analysis, abnormal ankle–brachial index (HR: 0.058, 95% CI: 0.012–0.279, p < 0.001) and low seven-year averaged serum phosphate levels (HR: 0.625, 95% CI: 0.404–0.968, p = 0.035) remained the risk factors for ischemic stroke. The risk of ischemic stroke was 3.783-fold in patients with abnormal ankle–brachial index compared with patients with normal ankle–brachial index (HR: 3.783, 95% CI: 1.731–8.269, p = 0.001). Conclusions These findings suggest that ankle–brachial index is an impressive predictor of future ischemic stroke among hemodialysis patients.

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