Bupivacaine Pharmacokinetics Following TAP Block
2016年4月14日 更新者：Jason Hayes、The Hospital for Sick Children
Bupivacaine Pharmacokinetics in Children Following Transversus Abdominis Plane Block
The aims of this study are to determine population PK parameters of bupivacaine in children following TAP block using a population-based PK approach, and to evaluate the influence of patient covariates on drug disposition.
研究概览
详细说明
The number of published pediatric studies on the use of transversus abdominis plane (TAP) block has increased in recent years.
The transversus abdominis plane (TAP) block has been used for postoperative analgesia for surgery to the abdominal wall and involves the injection of local anesthetic solution into a plane between internal oblique (IO) and transversus abdominis (TA) muscles.
The TAP block has the advantage of providing unilateral analgesia in instances of non-midline abdominal incision and is particularly useful in cases where epidural blockade is either contraindicated or technically or logistically not feasible.
Bupivacaine and ropivacaine have been used as local anesthetics for TAP blocks in published studies to date.
However, no data exist regarding the pharmacokinetics of bupivacaine after TAP block in children.
The aims of this study are to determine population pharmacokinetic (PK) parameters of bupivacaine in children following a TAP block, using a population-based PK approach.
研究类型
观察性的
注册 (实际的)
20
联系人和位置
本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。
学习地点
-
-
Ontario
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Toronto、Ontario、加拿大、M5G 1X8
- The Hospital for Sick Children
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-
参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
3年 至 14年 (孩子、成人)
接受健康志愿者
不
有资格学习的性别
全部
取样方法
非概率样本
研究人群
Children undergoing TAP block for postoperative pain control
描述
Inclusion Criteria:
- Patients receiving a TAP block as part of routine anesthetic management
- Patients older than 3 months and less than 18 years of age
- Patients weighing ≥ 6 kg
- Patients with American Society of Anesthesiologists (ASA) score 1-3
Exclusion Criteria:
- Patients with known severe preexisting liver disease
- Patients with known severe (i.e. requiring dialysis) preexisting renal disease
- Patients who will be discharged the day of surgery
- Refusal to consent
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
- 观测模型：仅案例
- 时间观点：预期
队列和干预
团体/队列 |
干预/治疗 |
|---|---|
|
Blood sample for bupivicaine pharmacokinetics
Children undergoing TAP block will have blood sampled for bupivacaine pharmacokinetics
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Bupivacaine levels will be measured with an assay developed on the 4000 QTrap Tandem Mass Spectrometer (Applied Biosystems/ MDS Sciex). Data will be collected and analyzed using the Agilent ChemStation software (Rev A.10.02). The analytical column is an Agilent Zorbax Eclipse XDB-C8 (4.6 x 150mm, 5µm).Quantification of bupivacaine is based on analyzing a six point calibration curve (0 to 4.0 mg/L). An internal standard (Prilocaine 221.2/86.1) is included with each calibrator, quality control or patient sample. Instrumentation and Chromatographic conditions: The HPLC system consists of a Specta-System P1000 Isocratic Pump and an AS3000 Autosampler (Thermo Electron Corporation, Waltham MA). |
研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Population pharmacokinetics of bupivacaine and the influence of patient covariates on drug disposition
大体时间：0 - 360 minutes after the TAP block is performed
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Blood will be drawn from an indwelling intravenous catheter.
Each patient will have a total of 6 samples collected during each of the following time blocks: 0 - 10 minutes, 11 - 20 minutes, 21 - 30 minutes, 31 - 60 minutes, 61 - 180 minutes and 181 - 360 minutes after the TAP block is performed.
Age, weight, sex, concomitant drugs (intravenous and inhalation anesthetics, muscle relaxants, and opioids), and kidney function data will be investigated as co-variables for each of the primary parameters.
We will obtain estimates of total clearance (CL), volume of distribution, elimination half life (t1/2), estimates of clearance, and absorption rate constant.
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0 - 360 minutes after the TAP block is performed
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合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
调查人员
- 首席研究员：Jason Hayes、The Hospital for Sick Children
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始
2011年9月1日
初级完成 (实际的)
2014年12月1日
研究完成 (实际的)
2014年12月1日
研究注册日期
首次提交
2013年8月21日
首先提交符合 QC 标准的
2013年12月12日
首次发布 (估计)
2013年12月19日
研究记录更新
最后更新发布 (估计)
2016年4月15日
上次提交的符合 QC 标准的更新
2016年4月14日
最后验证
2016年4月1日
更多信息
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.