Multicenter, randomized, placebo- controlled, double blind study of HS219 to evaluate the efficacy and safety in chronic kidney disease patients on hemodialysis with hyperphosphatemia - Study of HS219 in chronic kidney disease patients on hemodialysis with hyperphosphatemia

Sixty eight HD patients maintained on calcium carbonate (33 subjects) or sevelamer (35 subjects) were enrolled during January - April, 2010. Sixty-three patients chewed at least one gum: 35 HS219 and 28 placebo. HS219 was well tolerated and safe. However, no significant effect of HS219 on reduction of serum phosphorous was observed. There were no significant differences between HS219 and placebo in the ratio of 1.5 mg/dL of reduction of serum phosphorus level and the rate of achievement to the targeted serum phosphorus level; &#8805; 3.5 mg/dL and < 5.5 mg/dL. There were no significant effects of HS219 on change of salivary phosphorus, serum Ca, serum Ca x P, iPTH and EGF 23.