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Nicotinic acid and related compounds: A meta-analysis of their use for hyperphosphatemia in dialysis patients.

ABSTRACT: Studies indicate that nicotinic acid and related compounds may decrease phosphorus concentrations effectively by reducing the absorption in the gastrointestinal tract. However, the efficacy and safety of oral niacin treatments have only been investigated in a limited number of small-scale studies.We performed this meta-analysis by pooling 12 qualified relevant preclinical and clinical trials to evaluate the association of nicotinic acid (and its related compounds) treatment and hyperphosphatemia among dialysis patients. Baseline and after treatment data were collected from the studies to evaluate drug efficacy, effect on lipid profile, and drug safety. To evaluate drug efficacy, subgroups were created based on different exposure time (i.e., 4 wks, 8 wks, 12 wks, and 24 wks) and each subgroup was compared against baseline data. In the assessment of lipid profile and drug safety, results of 8-week treatment were compared against baseline data.Our study showed that in the efficacy assessment of drug treatment, serum phosphorus concentration was only significantly reduced in the 4-week (SMD, 0.68; 95% CI, 0.40 to 0.97; P?=?.000; n?=?8), and 8-week (SMD, 1.05; 95% CI, 0.68 to 1.42; P?=?.000; n?=?10) treatment groups. The calcium × phosphorus product showed significantly reduced concentration in all the drug exposure time settings, and no rebound was detected (4-wk treatment: SMD, 0.61; 95% CI, 0.18 to 1.04; P?=?.005; n?=?5; 8-wk treatment: SMD, 0.76; 95% CI, 0.32 to 1.18, P?=?.001; n?=?8; and 12-wks treatment: SMD, 0.28, 95% CI, -0.06 to 0.61; P?=?.103; n?=?3). Lipid profile monitoring showed that high-density lipoprotein (HDL) and triglycerides (TG) significantly changed after 8 weeks of treatment (HDL: SMD, -0.63; 95% CI, -1.03 to 0.24; P?=?.002; n?=?5) and TG: SMD, 0.25; 95% CI, 0.02 to 0.49; P?=?.033; n?=?5). Assessment of drug safety detected significant association for incidence of diarrhea (8% incidence rate; 95% CI, 4% to 12%; P?=?.001) and total adverse event (41% incidence rate, 95% CI: 12% to 69%, P?=?.001).Our study concludes that nicotinic acid and related compounds can significantly reduce serum phosphorus concentration with additive antilipemic effects. We also recommend that the safety of this drug be further studied, as our results suggest significant incidence of adverse events.


PROVIDER: S-EPMC5895315 | BioStudies | 2018-01-01T00:00:00Z

REPOSITORIES: biostudies

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