[Management of hyperphosphatemia ; phosphate-binder]
1The Jikei University School of Medicine, Department of Internal Medicine, Division of Nephrology and Hypertension.
Insights
Hyperphosphatemia in chronic kidney disease (CKD) increases cardiovascular risk. Sevelamer, a novel phosphate binder, effectively controls phosphorus and may reduce calcification, offering an alternative to calcium-based binders.
Area of Science:
- Nephrology
- Cardiovascular Medicine
- Biochemistry
Context:
- Patients with chronic kidney disease (CKD) exhibit significantly increased cardiovascular mortality.
- Hyperphosphatemia is a prevalent and serious complication in advanced CKD.
- Traditional phosphate binders, like calcium carbonate, pose risks including increased calcium load and calcification.
Purpose:
- To evaluate sevelamer as a calcium-free, non-absorbed phosphate binder in CKD patients.
- To assess sevelamer's efficacy in controlling serum phosphorus levels.
- To explore sevelamer's potential benefits beyond phosphorus binding, such as reducing calcification and improving lipid profiles.
Summary:
- Sevelamer is a novel, non-absorbed, calcium-free, and metal-free phosphate binder.
- Clinical studies demonstrate sevelamer's effectiveness in managing hyperphosphatemia in CKD patients.
- Evidence suggests sevelamer may attenuate vascular calcification and positively influence lipid metabolism and inflammation.
Impact:
- Sevelamer offers a safer alternative to calcium-based binders for managing hyperphosphatemia in CKD.
- Potential reduction in cardiovascular and soft tissue calcification may improve patient outcomes.
- Further research into sevelamer's pleiotropic effects could lead to improved CKD management strategies.
Abstract:
Numerous experimental and clinical studies have recently addressed the underlying mechanisms in particular the marked increase in cardiovascular mortality in patients with CKD. Hyperphosphatemia is a major problem in these patients with advanced stage of CKD. Calcium carbonate became the most widely used phosphate binders ; however, increasing evidence now suggests that prolonged use of these agents increases the total body calcium load, induces adynamic bone, and potentially increases the risk of cardiovascular and soft tissue calcification. Sevelamer is the first phosphate-binding agent that is non-absorbed, calcium-free, and metal-free. To date, this agent has been shown to effectively control serum phosphorus levels in patients with CKD. It may also attenuate coronary and aortic calcification and has a number of other beneficial effects on lipid metabolism and inflammation among others.
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