The active ingredient in Renvela is sevelamer carbonate, a polymeric amine that binds phosphate and is meant for oral administration. It was developed as a pharmaceutical alternative to sevelamer hydrochloride (Renagel®). Sevelamer carbonate is an anion exchange resin, with the same polymeric structure as sevelamer hydrochloride, in which carbonate replaces chloride as the counterion. While the counterions differ for the two salts, the polymer itself, the active moiety involved in phosphate binding, is the same.
Renvela® (sevelamer carbonate) is indicated for the control of serum phosphorus in patients with chronic kidney disease (CKD) on dialysis.
Published Studies Related to Renvela (Sevelamer)
Sevelamer carbonate lowers serum phosphorus effectively in haemodialysis
patients: a randomized, double-blind, placebo-controlled, dose-titration study. 
transitioning from a calcium-based to a polymer-based phosphate binder... CONCLUSIONS: This study demonstrated that hyperphosphataemia developed quickly
Effect of gastric acid suppression with pantoprazole on the efficacy of sevelamer
hydrochloride as a phosphate binder in haemodialysis patients: a pilot study. 
Sevelamer hydrochloride (HCL) is thought to require an appropriately acidic
environment in order to bind gastrointestinal phosphate. Changes in gastric
acidity with acid suppressants may therefore alter the efficacy of sevelamer HCL... Although our study did not find a significant drug
interaction, given the high prevalence of acid suppressant use in dialysis
patients, physicians should be aware of the potential influence of acid
suppression on the efficacy of phosphate binders and regularly assess the
clinical need for acid suppression therapy.
Comparison of Calcium Acetate and Sevelamer on Vascular Function and Fibroblast Growth Factor 23 in CKD Patients: A Randomized Clinical Trial. [2011.11.30]
BACKGROUND: Fibroblast growth factor 23 (FGF-23) is a marker of endothelial dysfunction and atherosclerotic complications in patients with chronic kidney disease (CKD). Because previous studies suggested that sevelamer may exert effects on FGF-23 level and endothelial function independently of its phosphate-lowering action, we tested the effect of sevelamer versus calcium acetate on vascular function and FGF-23 levels... CONCLUSIONS: In hyperphosphatemic patients with stage 4 CKD, treatment with phosphate lowering induces measurable improvements in flow-mediated vasodilatation. Furthermore, independently of serum phosphate level, FGF-23 level changes induced by phosphate binders are associated with simultaneous changes in flow-mediated vasodilatation. These observations are compatible with the hypothesis that FGF-23 may contribute to vascular dysfunction in this population. Copyright (c) 2011 National Kidney Foundation, Inc. Published by Elsevier Inc. All rights reserved.
Comparison of dietary phosphate absorption after single doses of lanthanum carbonate and sevelamer carbonate in healthy volunteers: a balance study. [2011.05]
BACKGROUND: Lanthanum carbonate and sevelamer carbonate are noncalcium phosphate binders used to treat hyperphosphatemia in patients with chronic kidney disease. This is the first study to compare phosphate absorption from a standardized meal ingested with a typical clinical dose of these binders... CONCLUSIONS: In healthy volunteers, 1,000 mg of lanthanum carbonate decreased phosphate absorption by 45% compared with a 21% decrease with 2,400 mg of sevelamer carbonate. Copyright (c) 2011 National Kidney Foundation, Inc. Published by Elsevier Inc. All rights reserved.
The effect of sevelamer carbonate and lanthanum carbonate on the pharmacokinetics of oral calcitriol. [2011.05]
BACKGROUND: Lanthanum carbonate and sevelamer carbonate are non-calcium-based phosphate binders used to manage hyperphosphataemia in patients with chronic kidney disease (CKD). Patients with CKD may require intravenous or oral active vitamin D. We investigated the effects of lanthanum carbonate and sevelamer carbonate on the bioavailability of oral calcitriol... CONCLUSIONS: Sevelamer carbonate significantly reduces serum concentrations of exogenous calcitriol when administered concomitantly with oral calcitriol, whereas lanthanum carbonate has no significant effect. This should be considered when treating CKD patients who require phosphate binders and oral vitamin D.
Clinical Trials Related to Renvela (Sevelamer)
Effect of Sevelamer on Glucose Tolerance and Insulin Sensitivity in Patients With Chronic Renal Failure (CKD) [Recruiting]
FGF23 Reduction : Efficacy of a New Phosphate Binder in CHronic Kidney Disease [Recruiting]
The purpose of this study is to evaluate in Chronic Kidney Disease (CKD) patients not on
dialysis and who have an Fibroblast growth factor 23 (FGF23) serum levels elevated, the
effect of non calcic phosphate binder: sevelamer carbonate. This treatment could lead to a
diminution of FGF23 serum levels due to the diminution of intestinal absorption of dietary
phosphate. In addition, the investigators will describe the impact of the FGF23 level
monitoring on the main phosphocalcium metabolism markers as phosphatemia, intact parathyroid
hormone (iPTH), serum calcitriol and phosphaturia.
Sevelamer Hydrochloride in Peritoneal Dialysis Patients [Recruiting]
To test the hypothesis that second-line fixed low-dose sevelamer hydrochloride therapy is as
effective as first-line high-dose sevelamer hydrochloride therapy in limiting the
progression of cardiovascular calcification.
Sevelamer and Secondary Hyperparathyroidism in Chronic Kidney Disease [Recruiting]
The hypothesis underlying this study is that phosphate interferes with PTH-mediated calcium
reabsorption in the distal nephron and thereby necessitates supranormal [PTH]to maintain
normocalcemia in chronic kidney disease. This study will examine the hypothesis with
measures of phosphate homeostasis and calcium reabsorption. A double-blind trial of the
intestinal phosphate binder sevelamer carbonate will be employed to examine whether
reductions in phosphate influx alter distal nephron phosphate concentration and the [PTH]
required for calcium reabsorption in the expected manner.
The Effects of Sevelamer Carbonate on Diabetic Nephropathy [Recruiting]
The purpose of this study is to see if taking a medication can lower the amount of oxidants
from food that go into our body. Previous research shows that if the investigators lower the
oxidants from food in people with diabetes, this simple change lowers different risks for
heart disease and the worsening of kidney disease. The investigators focus on a specific
type of oxidant, advanced glycation endproducts (AGEs). A previous, smaller study, conducted
by our group showed that a drug, already approved by the FDA, will lower AGEs in the
investigators compared Renvela® to Tums®. Both of these drugs have few side effects and have
been used for a long time in patients with diabetes and kidney disease. While our previous
study was interesting, it was just too small to be able to be sure that it will help all
people with diabetes, or if the good effects the investigators found were simply due to
chance. The investigators are doing this new study to confirm or deny the possibility that
RenvelaĀ® can really help people with diabetes and kidney disease.
Reports of Suspected Renvela (Sevelamer) Side Effects
Abdominal Pain Upper (4),
Intestinal Obstruction (4),
Muscle Rupture (3),
Klebsiella Infection (3), more >>
Page last updated: 2014-12-01