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GRam stain-guided Antibiotics ChoicE for Ventilator-Associated Pneumonia (GRACE-VAP) trial: rationale and study protocol for a randomised controlled trial.
Trials ( IF 2.0 ) Pub Date : 2018-11-10 , DOI: 10.1186/s13063-018-2971-2
Jumpei Yoshimura 1 , Kazuma Yamakawa 1 , Takahiro Kinoshita 1 , Yoshinori Ohta 2 , Takeshi Morimoto 3
Affiliation  

BACKGROUND Optimising the use of antibiotic agents is a pressing challenge to overcoming the rapid emergence and spread of multidrug-resistant pathogens in intensive care units (ICUs). Although Gram staining may possibly provide immediate information for predicting pathogenic bacteria, Gram stain-guided initial antibiotic treatment is not well established in the ICU setting. We planned the GRam stain-guided Antibiotics ChoicE for Ventilator-Associated Pneumonia (GRACE-VAP) trial to investigate whether Gram staining can safely restrict the use of broad-spectrum antibiotics in patients with ventilator-associated pneumonia (VAP), which is one of the most common hospital-acquired infections in ICUs. METHODS/DESIGN The GRACE-VAP trial is a multicentre, randomised, open-label parallel-group trial to assess the non-inferiority of Gram stain-guided initial antibiotic treatment to guidelines-based initial antibiotic treatment for the primary endpoint of clinical response rate in patients with VAP. Secondary endpoints include the coverage rates of initial antibiotic therapies, the selected rates of anti-pseudomonal agents and anti-methicillin-resistant Staphylococcus aureus (anti-MRSA) agents as initial antibiotic therapies, 28-day all-cause mortality, ICU-free days, ventilator-free days and adverse events. Patients are randomly assigned to receive Gram stain-guided treatment or guidelines-based treatment at a ratio of 1:1. In the Gram stain group, results of Gram staining of endotracheal aspirate are used to guide the selection of antibiotics. In the guidelines group, the combination of an anti-pseudomonal agent and an anti-MRSA agent is administered. A total sample size of 200 was estimated to provide a power of 80% with a one-sided alpha level of 2.5% and a non-inferiority margin of 20%, considering 10% non-evaluable patients. DISCUSSION The GRACE-VAP trial is expected to reveal whether Gram staining can reduce the use of broad-spectrum antibiotics without impairing patient outcomes and thereby provide evidence for an antibiotic selection strategy in patients with VAP. TRIAL REGISTRATION Clinicaltrials.gov, NCT03506113 . Registered on 29 March 2018. University Hospital Medical Information Network, UMIN000031933. Registered on 26 March 2018.

中文翻译:

呼吸机相关性肺炎的GRam染色指导的抗生素ChoicE(GRACE-VAP)试验:一项随机对照试验的原理和研究方案。

背景技术优化抗生素试剂的使用是克服重症监护病房(ICU)中多药耐药病原体的快速出现和传播的紧迫挑战。尽管革兰氏染色可能会为预测病原菌提供即时信息,但在ICU设置中,革兰氏染色指导的初始抗生素治疗尚不完善。我们计划进行GRam染色指导的呼吸机相关性肺炎抗生素ChoicE(GRACE-VAP)试验,以研究革兰氏染色是否可以安全地限制呼吸机相关性肺炎(VAP)患者中广谱抗生素的使用。 ICU中最常见的医院获得性感染。方法/设计GRACE-VAP试验是一个多中心,随机,这项针对VAP患者的临床反应率主要终点的开放标签平行组试验旨在评估革兰氏染色指导的初始抗生素治疗与基于指南的初始抗生素治疗的不劣性。次要终点包括初始抗生素治疗的覆盖率,选择的抗假性伪狂药和抗甲氧西林金黄色葡萄球菌(抗MRSA)药物作为初始抗生素治疗的比例,28天全因死亡率,无ICU天数,无呼吸机的日子和不良事件。随机分配患者接受1:1革兰氏染色引导治疗或基于指南的治疗。在革兰氏染色组中,气管内抽吸物的革兰氏染色结果用于指导抗生素的选择。在准则组中,施用抗假单胞菌剂和抗MRSA剂的组合。考虑到10%的不可评估患者,估计总样本量为200,可提供80%的功效,单侧alpha水平为2.5%,非劣效性为20%。讨论GRACE-VAP试验有望揭示革兰氏染色是否可以在不损害患者预后的情况下减少广谱抗生素的使用,从而为VAP患者的抗生素选择策略提供证据。试验注册Clinicaltrials.gov,NCT03506113。2018年3月29日注册。大学医院医学信息网络,UMIN000031933。2018年3月26日注册。考虑到10%的无法评估的患者,则为5%,非劣效性为20%。讨论GRACE-VAP试验有望揭示革兰氏染色是否可以在不损害患者预后的情况下减少广谱抗生素的使用,从而为VAP患者的抗生素选择策略提供证据。试验注册Clinicaltrials.gov,NCT03506113。2018年3月29日注册。大学医院医学信息网络,UMIN000031933。2018年3月26日注册。考虑到10%的无法评估的患者,则为5%,非劣效性为20%。讨论GRACE-VAP试验有望揭示革兰氏染色是否可以在不损害患者预后的情况下减少广谱抗生素的使用,从而为VAP患者的抗生素选择策略提供证据。试验注册Clinicaltrials.gov,NCT03506113。2018年3月29日注册。大学医院医学信息网络,UMIN000031933。2018年3月26日注册。2018年3月29日注册。大学医院医学信息网络,UMIN000031933。2018年3月26日注册。2018年3月29日注册。大学医院医学信息网络,UMIN000031933。2018年3月26日注册。
更新日期:2018-11-08
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