Anemia Management in Chronic Kidney Disease

Summary

Anemia is a frequent and consequential complication of chronic kidney disease (CKD), arising principally from reduced endogenous erythropoietin production, iron deficiency and chronic inflammation. Left untreated, anemia in CKD is associated with fatigue, diminished exercise tolerance, poorer quality of life and an elevated risk of cardiovascular events and progression to end-stage renal disease. Traditional management has centred on correcting iron deficits through oral or intravenous supplementation and administering erythropoiesis-stimulating agents to achieve target haemoglobin levels. However, variable response to therapy, safety concerns around high-dose erythropoiesis-stimulating agents and the burden of intravenous access have driven the search for novel approaches. Recent advances include oral hypoxia-inducible factor stabilisers that boost endogenous erythropoietin and improve iron mobilization by reducing hepcidin, and anti-inflammatory strategies aimed at restoring iron homeostasis. Emerging evidence supports a personalised paradigm in which iron status, inflammatory markers and patient preferences guide choice of therapy, with the dual aims of optimising haemoglobin, minimising adverse effects and enhancing functional capacity across the CKD population worldwide.

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Anemia Management in Chronic Kidney Disease publication trend

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Technical terms

Erythropoiesis-stimulating agents (ESA): Synthetic or recombinant compounds that mimic endogenous erythropoietin to stimulate red blood cell production in the bone marrow.

Hypoxia-inducible factor prolyl hydroxylase inhibitors (HIF-PHIs): A class of oral drugs that stabilise hypoxia-inducible factors, promoting endogenous erythropoietin synthesis and enhancing iron mobilisation by suppressing hepcidin.

Hepcidin: A liver-derived peptide hormone that regulates systemic iron balance by controlling intestinal iron absorption and release from macrophage stores; elevated levels inhibit iron availability.

References

  1. Effect of Ziltivekimab on Determinants of Hemoglobin in Patients with CKD Stage 3–5: An Analysis of a Randomized Trial (RESCUE). Journal of the American Society of Nephrology (2023).
  2. Anemia in Chronic Kidney Disease: From Pathophysiology and Current Treatments, to Future Agents. Frontiers in Medicine (2021).
  3. Impact of chronic kidney disease and anemia on health-related quality of life and work productivity: analysis of multinational real-world data. BMC Nephrology (2020).

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