An observation of curative effect of cinacalcet combined with activated vitamin D for treatment of patients with secondary hyperparathyroidism undergoing maintenance hemodialysis / 中国中西医结合急救杂志

ABSTRACT

Objective To observe the clinical curative effect of cinacalcet combined with activated vitamin D for treatment of patients with secondary hyperparathyroidism (SHPT) undergoing maintenance hemodialysis (MHD).Methods Eighty-six patients with SHPT undergoing MHD admitted to the Blood Purification Center of Wuhan General Hospital of Chinese People's Liberation Army from April 2014 to April 2016 were enrolled, and they were divided into an observation group and a control group by random number table, 43 cases in each group. The patients in control group were given cinacalcet whose initial dose was 25 mg/d and maximum dose should not exceed 75 mg/d, and the calcium acetate orally; on the basis of control group, the patients in observation group were additionally given activated vitamin D therapy, and both groups were treated for consecutive 12 weeks. After treatment, the clinical therapeutic effect, serum calcium, serum phosphorus, calcium phosphorus product, intact parathyroid hormone (iPTH) levels and the incidence of adverse reactions were compared between the two groups.Results The total effective rate in observation group was higher than that of the control group [90.70% (39/43) vs. 74.42% (32/43),P < 0.05]. After treatment, the difference of the serum calcium, calciumphosphorus product were higher than those before treatment in both groups [serum calcium (mmol/L) the control group was 2.24±0.25 vs. 1.99±0.26, observation group was 2.60±0.21 vs. 2.03±0.24; calcium phosphorus product (mmol2/L2) the control group was 4.05±0.34 vs. 3.79±0.35, observation group was 4.25±0.37 vs. 3.86±0.36, allP < 0.05], serum phosphorus, iPTH were lower than those before treatment in both groups [phosphorus (mmol/L) the control group was 1.69±0.14 vs. 2.09±0.12, observation group was 1.15±0.18 vs. 2.03±0.16; iPTH (ng/L) the control group was 297.36±59.73 vs. 499.54±69.32, observation group was 198.53±57.32 vs. 492.92±67.54, allP < 0.05], the degrees of changes in observation group were more significant than those in control group [serum calcium (mmol/L) 2.60±0.21 vs. 2.24±0.25, serum phosphorus (mmol/L) 1.15±0.18 vs. 1.69±0.14, calcium phosphorus product (mmol2/L2) 4.25±0.37 vs. 4.05±0.34, iPTH (ng/L) 198.53±57.32 vs. 297.36±59.73, allP < 0.05]; and the incidence of adverse reactions was significantly lower in observation group than that of the control group [4.65% (2/43) vs. 20.93% (9/43),P < 0.05].Conclusion Cinacalcet combined with activated vitaminD for treatment of SHPT patients undergoing maintenance hemodialysis shows obvious curative effect, reduces the whole segment of iPTH, and simultaneously has less adverse reactions.