Milrinone Pharmacokinetics and Acute Kidney Injury (MIL-PK)
USE OF ACUTE KIDNEY INJURY BIOMARKERS TO PREDICT IMPAIRED MILRINONE PHARMACOKINETICS IN CHILDREN FOLLOWING CARDIAC SURGERY
Acute kidney injury (AKI) occurs in 40% of children following heart surgery. Serum creatinine (Scr) is a late biomarker of AKI, rising 24-48 hours after surgery. Thus, for medicines excreted in the urine, AKI could potentially lead to toxic levels in the blood. Urinary biomarkers have the ability to detect AKI earlier. Whether early detection of AKI through urinary biomarkers can predict altered drug levels is unknown.
Milrinone is used to improve heart function after surgery, but accumulates in AKI resulting in low blood pressure. Dose adjustments are not currently possible because of the late rise in SCr, and are based on clinical parameters that may lead to clinically relevant over or under-dosing. Thus, this study will address an important knowledge gap being the first to use elevations of AKI biomarker concentrations to anticipate increased milrinone levels.
研究概览
研究类型
注册 (实际的)
联系人和位置
学习地点
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Ohio
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Cincinnati、Ohio、美国、45229
- Cincinnati Children's Hospital Medical Center
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
取样方法
研究人群
描述
Inclusion Criteria:
- Undergoing cardiothoracic surgery with cardiopulmonary bypass
- weight greater than 2500 grams (5 pounds 8 ounces) at the time of surgery
- gestational age > 36 weeks
- age less < to 1 year
- infants with complex congenital heart disease
- use of milrinone in the intra-operative and post-operative period.
Exclusion Criteria:
- Pre-existing kidney disease (structural and functional abnormalities) as determined by the Principal Investigator
- use of aminoglycosides within 48 hours of planned surgery
- cardiac arrest prior to cardiac surgery
- extracorporeal membrane oxygenation prior to cardiac surgery
- urinary tract infection prior to surgery
- repair of an isolated atrial or ventricular septal defect
学习计划
研究是如何设计的？
设计细节
队列和干预
团体/队列 |
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Acute kidney injury
AKI defined by an elevation in urinary AKI biomarkers
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No acute kidney injury
No AKI defined by normal urinary AKI biomarkers
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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 |
|---|---|---|
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Biomarker elevation and milrinone clearance
大体时间：By 24 hours
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The primary outcome variables for Aim 1 are an elevation in urinary AKI biomarkers to predict a 25% reduction in milrinone clearance.
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By 24 hours
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Creatinine elevation and milrinone clearance
大体时间：by 72 hours
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The secondary outcome variables for Aim 2 include a 50-75% increase in SCr to predict a 25% reduction in milrinone clearance
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by 72 hours
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其他结果措施
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Hemodynamic parameters and AKI
大体时间：by 72 hours
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Parameters of hemodynamic function defined by a decrease in central venous pressure of > 5cmH20, and/or a decrease in superior vena cava saturation by >10% at 12-36 hours after cardiopulmonary bypass.
These surrogate markers of clinical outcome will be correlated with the following: operative mortality, longer time to achieve negative fluid balance, higher vasoactive inotrope score and longer intensive care and hospital length of stay.
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by 72 hours
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合作者和调查者
调查人员
- 首席研究员：Katja M Gist, DO, MSCS、University of Colorado, Denver
出版物和有用的链接
一般刊物
- Mizuno T, Gist KM, Gao Z, Wempe MF, Alten J, Cooper DS, Goldstein SL, Vinks AA. Developmental Pharmacokinetics and Age-Appropriate Dosing Design of Milrinone in Neonates and Infants with Acute Kidney Injury Following Cardiac Surgery. Clin Pharmacokinet. 2019 Jun;58(6):793-803. doi: 10.1007/s40262-018-0729-3.
- Gist KM, Cooper DS, Wrona J, Faubel S, Altmann C, Gao Z, Marino BS, Alten J, Hock KM, Mizuno T, Vinks AA, Joy MS, Wempe MF, Bennett MR, Goldstein SL. Acute Kidney Injury Biomarkers Predict an Increase in Serum Milrinone Concentration Earlier Than Serum Creatinine-Defined Acute Kidney Injury in Infants After Cardiac Surgery. Ther Drug Monit. 2018 Apr;40(2):186-194. doi: 10.1097/FTD.0000000000000496.
- Gist KM, Goldstein SL, Wrona J, Alten JA, Basu RK, Cooper DS, Soranno DE, Duplantis J, Altmann C, Gao Z, Faubel S. Kinetics of the cell cycle arrest biomarkers (TIMP-2*IGFBP-7) for prediction of acute kidney injury in infants after cardiac surgery. Pediatr Nephrol. 2017 Sep;32(9):1611-1619. doi: 10.1007/s00467-017-3655-y. Epub 2017 Apr 5.
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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