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Clin Infect Dis:双氢青蒿素 - 哌喹治疗方案可以作为妊娠期妇女的间歇性疟疾预防方案

2018-09-15 MedSci MedSci原创

有文献报道,双氢青蒿素 - 哌喹(DHA-PQ)作为妊娠期间疟疾的间歇性预防性治疗(IPTp)是非常有效的。但是对于确定哌喹(PQ)暴露剂量,疟疾风险和不良分娩结果之间的关联目前还没有明确的报道。

背景
有文献报道,双氢青蒿素 - 哌喹(DHA-PQ)作为妊娠期间疟疾的间歇性预防性治疗(IPTp)是非常有效的。但是对于确定哌喹(PQ)暴露剂量,疟疾风险和不良分娩结果之间的关联目前还没有明确的报道。

方法
本项研究中共有300名人类免疫缺陷病毒未感染的孕妇参加了妊娠12-20周的IPTp随机对照试验,她们们被随机分为磺胺多辛 - 乙胺嘧啶治疗组,和DHA-PQ治疗组。所有孕妇每4周进行一次PQ的药代动力学取样,并在妊娠28周时对30名女性进行强化药代动力学亚组研究。主要观察目标是PQ浓度 - 效应关系;怀孕期间恶性疟原虫感染的患病率;分娩结果包括胎盘疟疾,低出生体重和早产和毒性风险。

结果
本项研究表明当PQ目标静脉血浆浓度为13.9 ng / mL时,可在怀孕期间为孕妇提供99%的恶性疟原虫感染保护。尽管PQ浓度的增加与QT间期延长相关,但是高于目标PQ浓度的增加与胎盘寄生虫血症,早产和低出生体重的几率有相关关系。研究结果表明与标准剂量相比,每日或每周施用较低剂量的PQ将使PQ谷值高于目标浓度,同时降低PQ峰值水平,可以有效限制药物毒性的产生。

结论
IPTp与DHA-PQ的保护效力与较高的药物暴露密切相关。降低药物血浆浓度可以减少药物产生的毒副作用。

原始出处:

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