NEJM : HIV感染者的抗逆转录病毒治疗以及强化预防研究

2017-07-20 MedSci MedSci原创

在撒哈拉以南非洲地区,晚期HIV感染的患者在接受抗逆转录病毒治疗(ART)后,他们感染结核和隐球菌的死亡率约为10%。近日,在医学权威杂志NEJM上发表了一篇研究文章,研究人员旨在研究HIV感染者的抗逆转录病毒治疗以及强化预防的影响。

在撒哈拉以南非洲地区,晚期HIV感染的患者在接受抗逆转录病毒治疗(ART)后,他们感染结核和隐球菌的死亡率约为10%。近日,在医学权威杂志NEJM上发表了一篇研究文章,研究人员旨在研究HIV感染者的抗逆转录病毒治疗以及强化预防的影响。

方法:

研究人员在乌干达、津巴布韦、马拉维和肯尼亚地区开展了阶乘开放性试验,纳入了感染艾滋病毒的成人和5岁及以上的儿童,他们在这之前没有接受抗逆转录病毒治疗(ART)。通过每立方毫米小于100个细胞CD4 +计数的方法,对这些受试者进行抗逆转录病毒治疗(ART)。同时,研究人员将研究对象进行了随机化分组:接受强化抗菌素预防或标准预防措施,辅助拉替拉韦或无拉替拉韦,以及补充食物或没有补充食物。研究人员报告了强化抗菌药物预防的影响——持续的甲氧苄啶+磺胺甲恶唑治疗同时服用异烟肼维生素B6至少12周(配制单一的固定剂量的甲氧苄啶+磺胺甲恶唑复方片剂),12周的氟康唑,5天的阿奇霉素以及单一剂量的阿苯达唑,与单独的甲氧苄啶+磺胺甲恶唑标准预防相比较。主要观察终点是24周死亡率。

结果:

此研究共有1805名患者(1733名成人和72名儿童或青少年),906例患者接受强化预防以及899例患者接受标准预防,并且随访48周(失访率,3.1%)。CD4 +计数的中值基线为37个细胞每立方毫米,但854例患者(47.3%)无症状或轻度症状。研究人员运用Kaplan-Meier分析方法观察24周,强化预防的死亡率低于标准预防(80例患者[8.9% vs. 108例(12.2%);风险比(HR):0.73;95%可信区间(CI):0.55到0.98;P = 0.03);在这48周中分别有98名强化预防患者(11.0%)和127例标准预防患者(14.4%)死亡(风险比:0.76;95%置信区间:0.58至0.99;P = 0.04)。在强化预防治疗的患者中,结核发病率(P = 0.02),隐球菌感染率(P = 0.01),口腔或食管念珠菌病(P = 0.02),不明原因死亡率(P = 0.03)以及新住院治疗率(P = 0.03)显着降低。然而,在严重的细菌感染发生率上没有明显的组间差异(P = 0.32)。在强化预防组中,严重不良事件和4级不良事件发生率无明显降低(P = 0.08和P = 0.09)。HIV病毒抑制率和对抗逆转录病毒药物的依从性在两组中是相似的。

结论:

由此可见,对艾滋病毒感染患者采用先进的免疫抑制措施、加强抗菌素预防以及抗逆转录病毒治疗,可以使24周和48周的死亡率降低,同时不损害病毒抑制或不增加毒性作用。

原始出处

James Hakim,Victor Musiime,Alex J. Szubert,et al. Enhanced Prophylaxis plus Antiretroviral Therapy for Advanced HIV Infection in Africa. NEJM. 2017 July.

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    2018-06-07 mjldent
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    2018-05-09 hxj0117
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