Abstract
The effects of lanthanum carbonate (LC) vs. calciumbased phosphate binders in dialysis patients have been a matter of debate. We electronically searched PubMed, Embase, CENTRAL, and CBM for all randomized controlled trials comparing LC with calcium-based phosphate binders in adult dialysis patients. Quality assessment was performed using the Cochrane risk of bias tool. Metaanalysis was conducted by RevMan 5.2. Nine studies were eligible for our meta-analysis. There was no significant difference in all-cause mortality (RR 0.84, 95% CI 0.25 - 2.83) and cardiovascular events (RR 0.84, 95% CI 0.55 - 1.29) between LC and calcium-based phosphate binders. LC was associated with similar proportions of phosphate-controlled patients (RR 0.63, 95% CI 0.27 - 1.44) and lower incidence of hypercalcemia (RR 0.13, 95% CI 0.05 - 0.35) in comparison to calcium-based phosphate binders. Compared with calcium salts, LC was associated with significantly lower serum calcium, similar serum Ca x P product and higher serum iPTH. Despite the trends observed, we found no statistically significant differences in all-cause mortality and cardiovascular events between LC and calcium-based phosphate binders in dialysis patients. The conclusion was limited by lack of large sample and long-term trials. LC could reduce the incidence of hypercalcemia while comparable with calcium-based phosphate binders in reducing serum phosphorus level.
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