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临床试验/NCT04311073
NCT04311073招募中3 期

Randomized Control Trial Investigating for Prophylactic Tranexamic Acid Use at Time of Minimally Invasive Myomectomies

Eastern Virginia Medical School1 个研究点 分布在 1 个国家目标入组 50 人开始时间: 2020年6月20日最近更新:
适应症
干预措施
相关药物

试验速览

阶段
3 期
状态
招募中
入组人数
50
试验地点
1
主要终点
Estimated blood loss

研究概览

简要总结

This is a Double-blinded randomized placebo-controlled trial based at Eastern Virginia Medical School. Subjects who are identified in clinic having menorrhagia or abnormal Uterine bleeding (AUB) due to uterine fibroids and meet inclusion criteria based on the ultrasound (US) or Magnetic Resonance Imaging (MRI), aged 18-45 undergoing laparoscopic or Robotic assisted myomectomies. A total of 50 women in each arm of the study with symptomatic fibroids. Patients will be randomized to receive a single IV bolus injection of TXA 30mg/kg in 50ml of normal saline (intervention group) versus an IV bolus injection of normal saline of equivalent volume (placebo group) 15 minutes prior to initial surgical incision.

详细描述

This is a Double-blinded randomized placebo-controlled trial based at Eastern Virginia Medical School. Subjects who are identified in clinic having menorrhagia or abnormal Uterine bleeding (AUB) due to uterine fibroids and meet inclusion criteria based on the ultrasound (US) or Magnetic Resonance Imaging (MRI), aged 18-45 undergoing laparoscopic or Robotic assisted myomectomies. These subjects will be then approached for consent during their pre-op visit 1-2 weeks prior to their surgery. The setting for consent will be in a patient consultation room. A total of 50 women in each arm of the study with symptomatic fibroids meeting any of the following criteria will be included in the study:

  1. At least one fibroid greater than or equal to 6 cm
  2. Any intramural or broad ligament fibroid greater than or equal to 4 cm
  3. At least 3 total fibroids based on preoperative imaging. Randomization will be performed using an automated randomization website Patients will be randomized to receive a single IV bolus injection of TXA 30mg/kg in 50ml of normal saline (intervention group) versus an IV bolus injection of normal saline of equivalent volume (placebo group) 15 minutes prior to initial surgical incision. This dosage will not be adjusted for patients with renal insufficiency as they will be excluded from the study. Preparation of the medications will be performed by anesthesia who have both medication and normal saline available to them on short notice. No prior preparation by pharmacy will be required. Tranexamic acid is readily available in a 10 ml vial, which does not need a pharmacist to prepare for administration. The vial is mixed with 50 ml of saline in the operating room. This is the same process that occurs outside of any study with any medication that is administered intra-operatively. This will in no way impact the patient's safety during the surgery, especially since it is administered 15 minutes prior to the start of the procedure.

Both surgeon and patient will be blinded to the treatment arm. This dosage has been used previously in both obstetric and gynecological procedures and is the same dose recommended by the WHO for preventing post-partum hemorrhage The surgery itself will be scheduled at either Sentara Norfolk General, Sentara Leigh hospital, and Sentara Princess Anne hospital. These are the three sites that the investigators already perform Minimally invasive myomectomies.

An envelope will be given to the anesthesiologist prior to the procedure informing whether they are to receives TXA or the placebo. Blood loss will be estimated by the surgeon performing the procedure. Hemoglobin and hematocrit will be obtained 24 hours post procedure. The patient will be assessed for reported side effects from the medication given will be assessed by a questionnaire that will be given at their post-op appointment at the 2 week and 6-week mark. During these two visits a physical exam is performed, checking incision sites, and patient symptoms, all of which are standard of care for any minimally invasive procedure. The patients will be seen at the EVMS outpatient clinic for Gynecology, or depending with the physician who performed the surgery. Data will be collected from both Allscripts and EPIC charts.

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
Triple (Participant, Care Provider, Investigator)

入排标准

年龄范围
18 Years 至 45 Years(Adult)
性别
Female
接受健康志愿者

入选标准

  • Undergoing laparoscopic myomectomy
  • At least one fibroid greater than or equal to 6 cm
  • Any intramural or broad ligament fibroid greater than or equal to 4 cm
  • At least 3 total fibroids based on preoperative imaging

排除标准

  • Severe existing medical complications involving the heart, liver, or kidney
  • Moderate to severe renal impairment (serum creatinine > 1.4)
  • Blood clotting abnormalities
  • Known Allergies to tranexamic acid
  • Known Contraindications to Minimally invasive myomectomies
  • If you are pregnant
  • History of a prior blood clot in the lung arm or leg, known as pulmonary embolism or deep vein thrombosis
  • Any active blood clots, clotting disease, pulmonary embolism, cerebral thrombosis, estrogen use, renal impairment, elevated creatinine level
  • History of a stroke or mini-strokes
  • Concurrent oral contraceptive use
  • Contraindications to receiving Tranexamic acid
  • In patients with acquired defective color vision, since this prohibits measuring one endpoint that should be followed as a measure of toxicity
  • In patients with subarachnoid hemorrhage. Anecdotal experience indicates that cerebral edema and cerebral infarction may be caused by tranexamic acid in such patients.
  • In patients with active intravascular clotting.
  • In patients with hypersensitivity to tranexamic acid or any of the ingredients

研究组 & 干预措施

Tranexamic Acid

Experimental

Patients will receive a single IV bolus injection of TXA 30mg/kg in 50ml of normal saline 15 minutes prior to initial surgical incision time

干预措施: Tranexamic Acid (Drug)

Placebo

Placebo Comparator

Patients will receive an IV bolus injection of normal saline of equivalent volume (placebo group) 15 minutes prior to initial surgical incision

干预措施: Placebos (Drug)

结局指标

主要结局

Estimated blood loss

时间窗: Duration of procedure up to 420 minutes

Estimated blood loss at time of procedure completion; using volume of cannister and weight of lap sponges

Calculated blood loss

时间窗: From post operative day 0 until postoperative day 1

Calculated Blood loss, using pre-operative hematocrit, postoperative hematocrit and estimated blood volume x Body Mass Index

Number of blood products received

时间窗: Duration of hospital stay up to two days

Number of blood products received during admission that is directly due to blood loss at time of procedure

次要结局

  • Duration of surgery(Duration of surgery up to 420 minutes)
  • Number of fibroids removed(Duration of surgery, up to 420 minutes)
  • Fibroid type(through completion of study average 8 weeks)
  • tPA receptor(From time of randomization until postoperative visit, four weeks)
  • PAI-1 receptor(From time of randomization until postoeprative visit, four weeks)
  • Weight of fibroids removed(duration of surgery up to 420 minutes)
  • Questionnaire for incidence of mild side effect of medication(only on postoperative day 1 , one day)
  • Length of hospital stay(Duration of stay in hospital, up to two days)
  • Pain index(duration of hospital stay, up to two days)
  • Incidence of postoperative complication(Duration of hospital stay , up to two days)
  • Questionnaire for incidence of serious side effect of medication(Only on postoperative day 1, one day)

研究者

申办方类型
Other
责任方
Sponsor

研究点 (1)

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