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首页> 外文期刊>The Journal of Clinical Pharmacology: Official Journal of the American College of Clinical Pharmacology >Period correction of the QTc of moxifloxacin with multiple predose baseline ECGs is the least variable of 4 methods tested.
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Period correction of the QTc of moxifloxacin with multiple predose baseline ECGs is the least variable of 4 methods tested.

机译:用多种给药前基线ECG对莫西沙星的QTc进行周期校正是所测试的4种方法中的最小变量。

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摘要

This study compares 4 baseline correction methods on the effect of moxifloxacin on the QT/QTc interval: (1) day -1 time-matched baseline electrocardiograms (ECGs), (2) 3 triplicate predose ECGs, (3) 1 triplicate predose ECG, and (4) no baseline correction. Forty-four healthy subjects receive a single dose of moxifloxacin (400 mg), placebo, and 2 doses of an investigational agent in a 4-period crossover fashion. For all 4 methods, the largest mean difference from placebo in the moxifloxacin study-specific QTc is 11.97 to 13.23 ms and occurs at 3 to 4 hours postdose; the lower 90% confidence interval is greater than 5 ms from 2 to 8 hours. The average standard error of the mean is 1.36 ms for 3 triplicate predose ECGs, 1.40 ms for 1 triplicate predose ECG, 1.60 ms for day -1 time-matched baseline ECGs, and 1.65 ms for no baseline correction. Predose baseline methods (3 or 1 triplicate ECGs) are superior to the day -1 time-matched baseline correction or without baseline correction.
机译:这项研究比较了4种基线校正方法对莫西沙星对QT / QTc间隔的影响:(1)第-1天的时间匹配基线心电图(ECG),(2)3倍剂量前ECG,(3)1倍剂量前ECG, (4)没有基线校正。四十四名健康受试者以四阶段交叉方式接受单剂量的莫西沙星(400毫克),安慰剂和两剂研究药物。对于所有4种方法,在莫西沙星研究特异性QTc中与安慰剂的最大平均差异为11.97至13.23 ms,发生于给药后3至4小时。较低的90%置信区间从2到8小时大于5毫秒。平均值的平均标准误是3个三次剂量前ECG,1.36 ms,1个三次剂量前ECG,1.40 ms,第-1天时间匹配基线ECG为1.60 ms,无基线校正为1.65 ms。给药前基线方法(3或1个一式三份ECG)优于-1天时间匹配的基线校正或不进行基线校正。

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