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Roxadustat for the treatment of anemia in patients with chronic kidney diseases: a meta-analysis.

ABSTRACT:

Background

Anemia is a common complication of chronic kidney disease (CKD). Treating renal anemia with erythropoiesis-stimulating agents (ESAs) or erythropoietin analogs is effective but has side effects. Therefore, we performed a meta-analysis to assess the efficacy and safety of roxadustat in treating CKD-induced anemia.

Methods

We searched publications online and conducted a meta-analysis and calculated relative risks with 95% confidence intervals (CIs) for dichotomous data and mean differences (MD) with 95% CIs for continuous data.

Results

Of 110 articles, nine were included that contained 12 data sets and 11 randomized control trials on roxadustat. In the non-dialysis-dependent (NDD) high-dose/low-dose subgroups, the change in hemoglobin (Hb) levels was significantly higher in the roxadustat group than in the placebo group (P<0.0001, P=0.001, respectively). The Hb response rate of the roxadustat is higher in the NDD subgroup than in the placebo group (P<0.00001, MD=6.92, 95% CI: 4.03, 11.89). However, in the dialysis-dependent subgroup, there was no significant difference in the change in Hb levels or the Hb response rate between the roxadustat and ESA groups. There was no change in the mortality in the roxadustat group compared to that in the placebo/ESA group. Hyperkalemia may be a side effect of roxadustat.

Conclusions

Roxadustat elevated the serum Hb levels in a manner similar to that observed for ESAs. Roxadustat raised the Hb levels more significantly than the placebo and showed a higher Hb response rate than the placebo group in NDD patients. Roxadustat is a safe and effective drug for anemia in CKD patients.

SUBMITTER: Zhang L

PROVIDER: S-EPMC8312415 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:Background: Many studies demonstrated that roxadustat (FG-4592) could increase hemoglobin (Hb) levels effectively in anemia patients with chronic kidney disease (CKD). However, its safety remains controversial. This study aims to explore the risk of infection for CKD patients treated with roxadustat, especially focused on sepsis. Methods: We thoroughly searched for the randomized controlled trials (RCTs) comparing treatment with roxadustat versus erythropoiesis stimulating agents (ESAs) or placebo in PubMed, Embase, Cochrane Library, ClinicalTrials.gov, European Union Clinical Trials Register. Both on and not on dialysis anemia patients with CKD were included. Primary outcomes contained the incidence rates of sepsis. Secondary outcomes included infection-related consequences (septic shock and other infection events), general safety outcomes [all-cause mortality, treatment-emergent adverse events (TEAEs) and treatment-emergent serious adverse events (TESAEs)] and iron parameters. Moreover, a trial sequential analysis (TSA) was conducted to assess if the results were supposed to be a robust conclusion. Results: Eighteen RCTs (n = 11,305) were included. Overall, the incidence of sepsis (RR: 2.42, 95% CI [1.50, 3.89], p = 0.0003) and cellulitis (RR: 2.07, 95% CI [1.24, 3.44], p = 0.005) were increased in the roxadustat group compared with placebo group. In non-dialysis-dependent (NDD) CKD patients, the incidence of cellulitis (RR 2.01, 95% CI [1.23, 3.28], p = 0.005) was significantly higher in roxadustat group than that in the ESAs or placebo group. Both groups showed similar results in the incidence of septic shock (RR 1.29, 95% CI [0.86, 1.94], p = 0.22). A significant increased risk of all-cause mortality [risk ratios (RR): 1.15, 95% confidence interval (CI) [1.05, 1.26], p = 0.002] was found in roxadustat treatment, and TSA confirmed the result. Compared with ESAs or placebo, both the incident rates of TEAEs (RR:1.03, 95% CI [1.01, 1.04], p = 0.008) and TESAEs (RR: 1.06, 95% CI [1.02, 1.11], p = 0.002) were significantly increased in roxadustat group. As for iron parameters, changes from baseline (Δ) of hepcidin (MD: -26.46, 95% CI [-39.83, -13.09], p = 0.0001), Δ ferritin and Δ TSAT were remarkably lower in the roxadustat group, while Δ Hb, Δ iron and Δ TIBC increased significantly versus those in ESAs or placebo group. Conclusion: We found evidence that incidence rates of sepsis and cellulitis are higher in roxadustat group compared with placebo. This may be the result of improved iron homeostasis. The risk of all-cause mortality, TEAEs and TESAEs in CKD patients also increased in patients treated with roxadustat. We need more clinical and mechanistic studies to confirm whether roxadustat really causes infection.

Project description:BackgroundAnemia is a common complication in chronic kidney disease (CKD) with increased morbidity and mortality. Recently published RCTs were conducted to compare the effect of the new medication roxadustat (ROX) with erythropoiesis-stimulating agent (ESA) in dialysis-dependent CKD (DD-CKD) patients. Our article aimed to meta-analyze published RCTs to investigate the efficacy and safety of ROX for anemia in DD-CKD patients and update the effect of the new studies on overall analysis with subsequent impact on management.MethodsElectronic databases (PubMed, EMBASE, Scopus, Web of Science, Cochrane Central, and Google Scholar) were searched systematically from inception to July 2021 by using this search term (Roxadustat OR ASP1517 OR FG4592 OR "FG-4592") AND (kidney OR renal) AND (Anemia). We only included randomized control trials (RCTs) that reported the primary outcome of change in hemoglobin (Hb) level and iron utilization parameters, including ferritin, serum iron, TSAT, TIBC, transferrin, and hepcidin.ResultsTen RCTs were finally included with 3031 patients in the ROX group and 2737 patients in the control group. ROX was associated with increase in Hb level (SMD: 0.2; 95% CI: 0.02, 0.39; P=0.03), TIBC (SMD: 0.79; 95% CI: 0.61, 0.98; P<0.00001), serum iron (SMD: 0.27; 95% CI: 0.18, 0.36; P<0.00001), transferrin (SMD: 0.98; 95% CI: 0.81, 1.15; P<0.00001) and decrease in hepcidin (SMD: -15.53; 95% CI: -28.07, -3.00; P<0.02) when compared with control group. There was no difference between ROX and the control group regarding ferritin level and TSAT. Sensitivity analysis by removing the most recent studies, Chen et al. or Hou et al. did not show significant difference in regard to change in Hb level. There was no difference between both groups regarding the serious side effects. However, ROX showed higher TEAEs when compared to the control group (RR: 1.03; 95% CI: 1.01, 1.05; P=0.002).DiscussionOur updated meta-analysis concluded that ROX increased Hb level and improved iron utilization parameters in DD-CKD patients, but ROX was associated with higher TEAEs. Our results support the use of ROX for DD-CKD patients with anemia. However, higher-quality RCTs are still needed to confirm the results of our review.

Project description:Background: Roxadustat is a new oral drug for anemia in chronic kidney disease (CKD). This study aimed to synthesize the evidence from randomized controlled trial (RCT)-based studies that estimated the efficacy and safety of roxadustat in anemia patients with non-dialysis-dependent (NDD) and dialysis-dependent (DD) CKD. Methods: We searched the PubMed, Web of Science, and Cochrane Central Register of Controlled Trials (CENTRAL) databases for related published studies. Moreover, we manually searched relevant pharmaceutical company websites and two international clinical trial registers to search for published and unpublished RCTs comparing roxadustat with erythropoietin-stimulating agents (ESAs) or placebo. Results: Fifteen RCTs (seven for DD-CKD patients, eight for NDD-CKD patients) were included in the meta-analysis, with 10,189 patients, 4,810 DD-CKD patients, and 5,379 NDD-CKD patients enrolled. Compared with ESAs (epoetin alfa or darbepoetin alfa) and placebo, roxadustat raised the hemoglobin level [weighted mean difference (WMD): 0.82 g/dL; 95% confidence interval (CI): 0.43-1.21], transferrin level (WMD: 0.5 g/L; 95% CI: 0.34-0.65), and TIBC level (WMD: 41.79 μg/dL; 95% CI: 38.67-44.92) and lowered the hepcidin level (WMD: -37.38 ng/ml; 95% CI: -46.63- -28.12) in both the DD-CKD and NDD-CKD patients with renal anemia. Roxadustat improved hemoglobin response and lowered the ferritin and TAST levels in the NDD-CKD patients but not in the DD-CKD patients. Furthermore, there was no difference between the treatment-emergent adverse events (TEAEs) of roxadustat and that of ESAs or placebo. But the incidence of serious TEAEs in the roxadustat group was significantly higher with NDD-CKD patients (OR: 1.15; 95% CI: 1.02-1.29). Conclusion: This study confirmed that roxadustat therapy could alleviate the anemia of DD-CKD and NDD-CKD patients by raising the hemoglobin level and regulating iron metabolism, but increased serious incidences of treatment-emergent adverse events (TEAEs) in NDD-CKD patients.

Project description:BackgroundRenal anemia is a common complication in patients with end-stage renal disease (ESRD). Both roxadustat and recombinant human erythropoietin (rhEPO) are alternative option for patients with renal anemia. However, the adverse events of rhEPO limited the wide use of it and the concrete difference of real clinical efficacy of rhEPO and roxadustat was still uncertain. This study aimed to assess the clinical efficacy of roxadustat for improving renal anemia in patients with chronic kidney disease.MethodsA retrospective cohort study of 790 consecutive patients with renal anemia treated with roxadustat and rhEPO was conducted at the Zhejiang Provincial People's Hospital. Patients were classified into two groups: roxadustat (n=95) and rhEPO (n=695). Baseline characteristics were compared in two groups. After propensity-score matching at a 1:3 ratio, we compared the efficacy of roxadustat and rhEPO in improving anemia, mainly using the Mann-Whitney U test. The follow-up period lasted 24 weeks.ResultsThe baseline characteristics were comparable between the two groups after propensity-score matching. There were no significant differences in the hemoglobin levels and estimated glomerular filtration rates (eGFRs) of the two groups before roxadustat or rhEPO treatment (P>0.05). The hemoglobin level after 4 weeks of treatment was 96 g/L in the roxadustat group, and the increase from baseline was 10 g/L; in the rhEPO group, these values were 87 and 6 g/L, respectively (P<0.001). After 12 weeks of treatment, the hemoglobin level and change from baseline were 105 and 15 g/L in the roxadustat group and 94 and 11 g/L in the rhEPO group, respectively (P<0.001). Similar results were observed after 24 weeks of treatment; the hemoglobin level and change from baseline were 105 and 17 g/L in the roxadustat group and 97 and 14 g/L in the rhEPO group (P=0.001).ConclusionsThis retrospective study demonstrated that orally administered roxadustat improved hemoglobin levels more than rhEPO in patients with CKD and anemia.