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使用维生素 C 减少器官功能障碍(LOVIT):一项随机对照试验的方案。

Lessening Organ dysfunction with VITamin C (LOVIT): protocol for a randomized controlled trial.

机构信息

Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC, Canada.

Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, ON, Canada.

出版信息

Trials. 2020 Jan 8;21(1):42. doi: 10.1186/s13063-019-3834-1.

Abstract

BACKGROUND

Sepsis is a health problem of global importance; treatments focus on controlling infection and supporting failing organs. Recent clinical research suggests that intravenous vitamin C may decrease mortality in sepsis. We have designed a randomized controlled trial (RCT) to ascertain the effect of vitamin C on the composite endpoint of death or persistent organ dysfunction at 28 days in patients with sepsis.

METHODS

LOVIT (Lessening Organ dysfunction with VITamin C) is a multicenter, parallel-group, blinded (participants, clinicians, study personnel, Steering Committee members, data analysts), superiority RCT (minimum n = 800). Eligible patients have sepsis as the diagnosis for admission to the intensive care unit (ICU) and are receiving vasopressors. Those admitted to the ICU for more than 24 h are excluded. Eligible patients are randomized to high-dose intravenous vitamin C (50 mg/kg every 6 h for 96 h) or placebo. The primary outcome is a composite of death or persistent organ dysfunction (need for vasopressors, invasive mechanical ventilation, or new and persisting renal replacement therapy) at day 28. Secondary outcomes include persistent organ dysfunction-free days to day 28, mortality and health-related quality of life at 6 months, biomarkers of dysoxia, inflammation, infection, endothelial function, and adverse effects (hemolysis, acute kidney injury, and hypoglycemia). Six subgroup analyses are planned.

DISCUSSION

This RCT will provide evidence of the effect of high-dose intravenous vitamin C on patient-important outcomes in patients with sepsis.

TRIAL REGISTRATION

clinicaltrials.gov, NCT03680274, first posted 21 September 2018.

摘要

背景

败血症是一个具有全球重要性的健康问题;治疗方法侧重于控制感染和支持衰竭的器官。最近的临床研究表明,静脉注射维生素 C 可能降低败血症患者的死亡率。我们设计了一项随机对照试验(RCT),以确定败血症患者在 28 天时死亡或持续器官功能障碍的复合终点中维生素 C 的作用。

方法

LOVIT(用维生素 C 减少器官功能障碍)是一项多中心、平行组、盲法(参与者、临床医生、研究人员、指导委员会成员、数据分析师)、优效性 RCT(最少 n=800)。符合条件的患者因败血症入院重症监护病房(ICU)并接受升压药治疗。那些在 ICU 中入住超过 24 小时的患者被排除在外。符合条件的患者被随机分为高剂量静脉注射维生素 C(50mg/kg,每 6 小时一次,共 96 小时)或安慰剂。主要结局是 28 天时死亡或持续器官功能障碍(需要升压药、有创机械通气或新的持续肾脏替代治疗)的复合结局。次要结局包括持续器官功能障碍无病生存至 28 天、6 个月时的死亡率和健康相关生活质量、低氧血症、炎症、感染、内皮功能和不良反应(溶血、急性肾损伤和低血糖)的生物标志物。计划进行 6 项亚组分析。

讨论

这项 RCT 将提供高剂量静脉注射维生素 C 对败血症患者患者重要结局影响的证据。

试验注册

clinicaltrials.gov,NCT03680274,首次发布于 2018 年 9 月 21 日。

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