The Effects of Intraoperative Tranexamic Acid on Perioperative Bleeding In Craniotomies
试验速览
- 阶段
- 3 期
- 状态
- 招募中
- 发起方
- 入组人数
- 102
- 试验地点
- 1
- 主要终点
- Estimated intraoperative blood loss
研究概览
简要总结
The goal of this clinical trial is to test the effect of a drug called tranexamic acid (TXA) on reducing blood loss in participants undergoing surgery to remove brain tumors. The main questions it aims to answer are:
- Does TXA 20 mg/kg IV bolus of TXA, and 1 mg/kg/hr infusion of TXA reduce the amount of estimated blood loss during surgery?
- Does TXA 20 mg/kg IV bolus of TXA, and 1 mg/kg/hr infusion of TXA prevent re-operation, disability or death related to bleeding inside the head during and after surgery? Participants are randomized to receive 20 mg/kg IV bolus of TXA or matching placebo within 30 minutes of start of surger, and then 1 mg/kg/hr infusion of TXA or matching from the start of surgery to end of surgery. Treatment allocation is blinded. Investigator will compare the two treatment arms to see whether there are differences in the amount of blood loss during surgery and bleeding-related complications. Investigators will also monitor for any side effects of TXA.
详细描述
Excessive blood loss during and after a neurosurgical procedure may increase illness and cause death. The surgeons and their team put in a lot of effort during surgery to and prevent excessive bleeding during and after surgery. One of the medications that may help is tranexamic acid (TXA). TXA is a medication that is widely used in cardiac, orthopedic and trauma surgery to prevent heavy bleeding, the need for blood transfusion and reduce death. During neurosurgery, there is not enough proof whether giving TXA to participants reduces blood loss, and there are no clear guidelines regarding the use of TXA. Investigators are interested in studying the effect of TXA on blood loss in participants undergoing craniotomy to remove a brain tumor. A craniotomy is an operation where a piece of the skull is removed to show part of the brain to remove a brain tumor. One of the risks associated with this procedure is bleeding. Currently, some participants undergoing this type of surgery receive TXA and others do not, as the decision to administer TXA is based on an investigator's preference. Therefore, a study investigating the impact of TXA on bleeding during or following craniotomy, as well as its safety, is needed to better inform practice and potentially improve outcomes of surgery.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Single (Participant)
盲法说明
This is a blinded study. The participant, surgeon and research team will not know the treatment allocation. Only the pharmacy preparing the medication will be unblinded
入排标准
- 年龄范围
- 18 Years 至 80 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- 未提供
排除标准
- 未提供
研究组 & 干预措施
Tranexamic Acid
Participants will be randomized in a 1:1 ratio to receive tranexamic acid 20 mg/kg IV bolus or identical volume of placebo 0.9 % NaCl within 30 minutes prior to the skin incision followed by a 1 mg/kg/hr infusion of TXA, or identical volume of placebo 0.9 % NaCl, for the duration of surgery. Treatment is blinded.
干预措施: TRANEXAMIC ACID 1 G in 10 mL INTRAVENOUS INJECTION, SOLUTION (Drug)
Matching Placebo
Participants will be randomized in a 1:1 ratio to receive tranexamic acid 20 mg/kg IV bolus or identical volume of placebo 0.9 % NaCl within 30 minutes prior to the skin incision followed by a 1 mg/kg/hr infusion of TXA, or identical volume of placebo 0.9 % NaCl, for the duration of surgery. Treatment is blinded.
干预措施: Placebo (Other)
结局指标
主要结局
Estimated intraoperative blood loss
时间窗: Surgery
a. EBL (ml/kg) = ERCV lost (ml)/\[weight (kg) x hematocrit preop/100\] i. ERCV = EBV x hematocrit/100 ii. ERCV lost = ERCV preop + ERCV transfused - ERCV postop iii. ERCV transfused = PRBC transfused (ml) x hematocrit transfused PRBC/100 iv. EBV = 75 ml/kg x weight (kg) b. abbreviations used: EBL, estimated blood loss; ERCV, estimated red cell volume; EBV, estimated blood volume; PRBC, packed red blood cells
Reoperation or disability or death due to intracranial hemorrhage within 30 days
时间窗: 30 days
次要结局
- What is the difference in Hemoglobin level postoperatively as compared to baseline?(24 hrs)
- Number of subjects requiring transfusion of blood products(30 days)
- Length of operation(Surgery)
- Volume of transfused packed red blood cell (PRBC) and fresh frozen plasma (FFP)(30 days)
- What is the difference in Intraoperative hemodynamics between subjects?(Surgery)
- Medication related risks, including seizure, thromboembolic event(30 days)
- Length of intensive care unit (ICU)/hospital stay(30 days)
- What is the difference in Platelet level postoperatively as compared to baseline?(24 hrs)
- What is the difference in Fibrinogen level postoperatively as compared to baseline?(24 hrs)
- What is the difference in INR/PTT value level postoperatively as compared to baseline?(24 hrs)
- What is the difference in Hematocrit level postoperatively as compared to baseline?(24 hrs)
研究者
Stephen Lownie
Professor
Nova Scotia Health Authority