Stroke:简要知情同意流程,或可改善脑中风患者预后

2021-12-17 Freeman MedSci原创

使用最初的简短同意与较短的入组时间有关,同时保持良好的参与者保留率

及时获得同意是超急性卒中试验中研究者的主要挑战。在这些研究中,干预措施必须在较短的治疗时间窗内实施才有效。另一方面,当患者缺乏行为能力,没有亲属或有授权的人可以代表他们提供同意时,获得同意就很困难。

由于身体上的距离预防措施,COVID-19的大流行使同意过程更加复杂。此外,病人或他们的代表也可能被这种急性情况吓倒,无法理解所提供的信息或参加临床试验的理由。

通过向患者及其亲属提供简明但相关的信息来简化同意程序,可以改善和缩短急性卒中试验的招募时间。

TICH-2(Tranexamic Acid in Intracerebral Haemorrhage-2)通过采用2个阶段的途径,努力缩短入组时间,首先使用简短的信息表征求患者或其法定代表人的同意,然后在随机分配后获得完全同意。

藉此, 马来西亚国立大学的Zhe Kang Law等人, 索使用1阶段和2阶段同意的患者的特点、可接受性以及对随机化时间的影响。

他们假设,使用简短的信息表将减少随机化的时间。

同意书由患者提供,或由亲属或无行为能力的患者的独立医生提供,采用1阶段(完整的书面同意书)或2阶段(最初的简短同意书,然后是随机化后的完整书面同意书)的方法。使用Kruskal-Wallis检验比较了根据同意途径的计算机断层扫描到随机化的时间。进行多变量逻辑回归以确定与发病到随机化时间≤3小时相关的变量。

在2325名患者中,817名(35%)使用1阶段(557名;68%)或2阶段同意(260名;32%)进行自我同意。1507名(65%)患者的同意是由亲属(1阶段,996[66%];2阶段,323[21%])或医生(所有2阶段,188[12%])提供的。

。医生同意的计算机断层扫描到随机化时间的中位数(四分位数范围)为55(38-93)分钟,2期患者为55(37-95)分钟,2期亲属为69(43-110)分钟,1期患者为75(48-124)分钟,1期亲属同意为90(56-155)分钟(P<0.001)。

与1阶段同意相比,2阶段同意与发病到随机化时间≤3小时有关(调整后的几率比,1.9[95%CI,1.5-2.4])。与患者同意相比,医生同意增加了几率(调整后的几率比,2.3 [1.5-3.5]),而相对同意减少了随机化≤3小时的几率(调整后的几率比,0.10 [0.03-0.34])。

在两阶段途径的771名患者中,只有2名(0.3%)在后来征求完全同意时撤回了同意。两阶段的同意程序并没有导致更高的撤回率或随访损失。

该研究的重要意义在于发现了:使用最初的简短同意与较短的入组时间有关,同时保持良好的参与者保留率。寻求亲属的书面同意与重大延误有关。

 

原文出处:

Law ZK, Appleton JP, Scutt P, et al. Brief Consent Methods Enable Rapid Enrollment in Acute Stroke Trial: Results From the TICH-2 Randomized Controlled Trial. Stroke. Published online December 2021:STROKEAHA.121.035191. doi:10.1161/STROKEAHA.121.035191

 

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    2021-12-17 g9527

    学习了

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