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Iron chelation reduces serum ferritin and iron while increasing hemoglobin in chronic kidney diseaseIron Chelators May Reduce Iron Levels in Chronic Kidney Disease

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Key Takeaway
Note that iron chelation reduces iron stores and may improve anemia in chronic kidney disease patients.

This meta-analysis evaluated the effects of iron chelation on iron indices, hematological parameters, and safety outcomes in 206 adults with chronic kidney disease. The analysis synthesized data on several key markers, including serum ferritin, transferrin, serum iron, and hemoglobin levels.

Key findings indicate that iron chelation significantly reduces serum ferritin (WMD: -1.48 μg/L; 95% CI: -2.09, -0.87), transferrin (WMD: -10.6 mg/dL; 95% CI: -15.6, -5.61), and serum iron (WMD: -24.2 μg/dL; 95% CI: -42.5, -5.9). Additionally, hemoglobin levels increased by a mean difference of 1.07 g/dL (95% CI: 0.20, 1.94). While glucose levels were reported to decrease, lipid parameters remained unaffected. Gastrointestinal adverse events were common, though serious adverse events were rare.

The authors note that the evidence is limited by high heterogeneity and potential bias. Due to these limitations and the small sample sizes involved, the clinical utility and safety of iron chelation for routine use in chronic kidney disease patients are not yet firmly established. Further high-quality randomized controlled trials are required to confirm these findings and establish definitive clinical guidelines.

How this fits prior evidence

This meta-analysis addresses a gap in managing hematological parameters in chronic kidney disease. While previous evidence has focused on managing blood pressure with selective aldosterone synthase inhibitors and improving glycemic control with SGLT2 inhibitors, this finding specifically addresses the role of iron chelation in reducing iron stores and potentially improving anemia in the CKD population.

A review of data involving 206 adults with chronic kidney disease looked at how iron chelators affect the body. The study focused on iron levels, blood markers, and potential side effects. The results showed that iron chelation led to a decrease in serum ferritin, transferrin, and serum iron. Additionally, patients saw an increase in hemoglobin levels.

While the treatment showed these positive changes in iron management, it did cause common gastrointestinal side effects. Serious adverse events were reported as rare. The study also noted that glucose levels decreased, while lipid parameters remained unaffected by the treatment.

It is important to note that this evidence is limited by small sample sizes and high variability between studies. Because the data is not yet definitive, more high-quality trials are needed to confirm how well this works for everyone. Patients should talk to their doctors to see if this treatment fits their specific needs.

What this means for you:
Iron chelation may lower iron levels and improve hemoglobin in kidney patients, but common stomach issues occur.

Common questions

How does iron chelation affect blood levels in kidney patients?

The study found that iron chelation led to a decrease in serum ferritin, transferrin, and serum iron. It also showed an increase in hemoglobin levels for the 206 adults with chronic kidney disease included in the analysis.

Are there side effects to using iron chelators?

Gastrointestinal adverse events were common among the patients. However, serious adverse events were reported as rare. You should discuss these potential side effects and the overall safety of the treatment with your doctor.

Is this treatment proven for everyone with kidney disease?

The evidence is currently limited by small sample sizes and high variability between studies. More high-quality trials are needed to confirm the clinical use of iron chelation before it can be recommended as a standard routine.

Study Details

Study typeMeta analysis
Sample sizen = 206
EvidenceLevel 1
PublishedOct 2026
View Original Abstract ↓
BACKGROUND: Iron overload in chronic kidney disease contributes to oxidative injury. The role of iron chelators, standard in transfusion-related overload, remains unclear in chronic kidney disease. AIM: To evaluate the efficacy and safety of iron chelators in adults with chronic kidney disease. METHODS: A systematic review and meta-analysis followed PRISMA 2020 guidelines. Databases were searched for randomized controlled trials and observational studies reporting on iron indices, hematological parameters, and adverse events. RESULTS: Eleven studies (206 patients) were included. Iron chelation significantly reduced serum ferritin (weighted mean difference [WMD]: -1.48 μg/L; 95% CI: -2.09, -0.87), transferrin (WMD: -10.6 mg/dL; 95% CI: -15.6, -5.61), and serum iron (WMD: -24.2 μg/dL; 95% CI: -42.5, -5.9). Hemoglobin increased (WMD: 1.07 g/dL; 95% CI: 0.20, 1.94). Glucose levels decreased, but lipid parameters were unaffected. Evidence was limited by high heterogeneity and potential bias. Gastrointestinal adverse events were common; serious events were rare. CONCLUSION: Iron chelation effectively reduces iron stores and may improve anemia in chronic kidney disease patients. However, the evidence is limited by small sample sizes and heterogeneity. High-quality randomized controlled trials are needed to establish clinical utility and safety before routine use.
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