AHA 2014:ZS-9可有效降低高钾血症患者的血钾水平(HARMONIZE试验)

2014-11-19 常三帅,刘屹 心在线

众所周知,高钾血症有可能引起恶性心律失常,与心血管病和慢性肾脏病不良预后相关,但目前缺乏有效的治疗措施。锆环状硅酸钠(ZS-9)是一种不溶于水、不被人体吸收的阳离子交换剂,主要在肠道内发挥作用,高度选择性结合K+。2014AHA年会公布的HARMONIZE研究结果表明,ZS-9可有效降低高钾血症患者的血钾水平。该研究同步发表于最新一期的《美国医学会杂志》(JAMA)。 HARMONIZE

众所周知,高钾血症有可能引起恶性心律失常,与心血管病和慢性肾脏病不良预后相关,但目前缺乏有效的治疗措施。锆环状硅酸钠(ZS-9)是一种不溶于水、不被人体吸收的阳离子交换剂,主要在肠道内发挥作用,高度选择性结合K+。2014AHA年会公布的HARMONIZE研究结果表明,ZS-9可有效降低高钾血症患者血钾水平。该研究同步发表于最新一期的《美国医学会杂志》(JAMA)。

HARMONIZE是一项国际多中心、随机、双盲、安慰剂对照3期药物临床研究,纳入来自美国、南非和澳大利亚44家医疗中心的258名急性高钾血症患者(血钾≥5.1 mEq/L),所有患者在急性期48小时内应用ZA-9(10g 每日三次),其中237名患者血钾恢复正常(3.5~5.0 mEq/L)。这些患者被随机分为每日5g ZS-9组(n=45)、每日10g ZS-9组(n=51)、每日15g ZS-9组(n=56)和安慰剂组(n=81)。随访28天,主要终点事件为不同剂量ZS-9组和安慰剂组患者在8~29天的随机血钾水平比较。次要终点包括急性期血钾恢复正常患者的比例,以及稳定期血钾保持正常的比例,同时研究也评价了ZS-9的安全性。基线状态下,患者的平均血钾为5.6 mEq/L。

研究结果表明,ZS-9应用1小时后,患者血钾水平即明显降低;24小时后,84%患者的血钾恢复正常;48小时则高达98%。3种剂量ZS-9组患者的血钾水平均显著低于安慰剂组患者(每日5、10g、15g ZS-9组的血钾水平分别为4.8 mEq/L、4.5 mEq/L、4.4 mEq/L,安慰剂组患者5.1 mEq/L;P均<0.001)。同时3种剂量ZS-9组维持正常血钾的患者比例明显高于安慰剂组(每日5、10g、15g ZS-9组为别为80%、90%、94%,安慰剂组46%;P均<0.001)。在不同亚组患者(心力衰竭、慢性肾脏病、糖尿病、应用RAAS抑制剂)中均可见上述疗效。同时ZS-9组的不良事件发生率与安慰剂组相当,证实ZS-9药物安全性和耐受性良好。

该研究结果证实,ZS-9可安全有效降低高钾血症门诊患者的血钾水平,48小时内,几乎所有患者均能恢复正常血钾。与安慰剂相比,应用ZS-9患者的28天内血钾水平更低,且维持正常血钾的患者比例更高。(作者: 常三帅,刘屹 编辑)


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    2014-11-21 zhaohui6731
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钾结合剂ZS-9可降低高钾血症复发(HARMONIZE试验)

近日,ZS制药公司发布的钾结合剂硅酸锆复合物(ZS-9)III期试验初步研究结果显示,每日3种剂量(5g、10g、15g)的ZS-9均可降低高钾血症28天的复发率。 HARMONIZE试验纳入了258例与慢性肾脏病(CKD)、心力衰竭(HF)、糖尿病和/或阻断血管紧张素醛固酮系统(RAAS)药物有关的高钾血症患者。 该试验包括开放标签期和随机期,在开放标签阶段,高钾血症患者接受ZS-9每日10