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Aims of the multi-center, randomized, treatment-controlled clinical trial are to compare the efficacy of sevelamer hydrochloride to calcium-containing phosphorus binders in reducing the rate of progression of femoral and carotid intimal media thickness (IMT) thickening as measured by B-mode ultrasound in stable maintenance hemodialysis (HD) patients.
Serum phosphorus (P) is frequently elevated in HD patients. Serum P stimulates PTH synthesis and is associated with secondary hyperparathyroidism. Use of calcium(Ca)-containing phosphorus-binders is an exogenous source of Ca that can elevate the CaxP product. In HD patients, an ultrasonographically-demonstrated increase in intima media thickness of the carotid artery has been associated with elevated serum P levels.Peripheral arterial vascular disease (PVD) accounts for significant mortality and morbidity in HD patients.
The aim of this study is to compare the efficacy of sevelamer hydrochloride to calcium-containing phosphorus binders in reducing the rate of progression of femoral and carotid intimal media thickness (IMT) thickening as measured by B-mode ultrasound in stable HD patients.
Subject randomization numbers was provided by the Epidemiology and Research Unit, E. Wolfson Medical Center, Holon, Israel. After meeting all inclusion criteria, subjects were randomized to one of two treatment groups: Renagel or calcium carbonate. Prior to receiving treatment, baseline femoral and carotid IMT were measured, medical and pharmaceutical history was documented, nutrition assessment was undertaken and midweek blood chemistry and blood count were measured. No change in patient medication prescription was required during this study, with the exception of phosphorus binders. All other concomitant medications were continued. During the year of the study, routine monthly blood tests were obtained for chemistry, blood count, and PTH was measured once every 4 months.
After a year of treatment, femoral and carotid IMT were measured again, midweek blood chemistry and blood count were measured.
Allocation: Randomized, Control: Active Control, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
End Stage Renal Disease
sevelamer hydrochloride, Calcium Carbonate
Edith Wolfson Medical Center
Tel-Aviv Sourasky Medical Center
Published on BioPortfolio: 2014-08-27T03:16:39-0400
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A field of chemistry which pertains to chemical compounds or ions that do not contain the element carbon (with the exception of carbon dioxide and compounds containing a carbonate radical, e.g., calcium carbonate).
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A naphthalene derivative and CALCIMIMETIC AGENT that increases the sensitivity of PARATHYROID GLAND calcium-sensing receptors to serum calcium. This action reduces parathyroid hormone secretion and decreases serum calcium in the treatment of PARATHYROID DISEASES.
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