This study seeks to determine if the using tranexamic acid prophylactically at caesarean section will prevent postpartum haemorrhage which is a major cause of maternal mortality in Zimbabwe and globally.
This trial will be an placebo-controlled, two-centre, randomized control trial with two parallel groups including 1,162 women who undergo elective or emergency caesarean deliveries at term. The study group will receive tranexamic acid (TXA) 1g intravenously at the onset of skin incision. There is normal saline placebo for the control group. The study and control groups will both receive the standard care offered at caesarean section including 5 IU of oxytocin intravenously on delivery of the baby. .
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
DOUBLE
Enrollment
1,226
Tranexamic 1g administered intravenously at the onset of skin incision at caesarean section
10ml of normal saline will be administered intravenously at onset of skin incision at caesarean section to the placebo group
Parirenyatwa Group of Hospitals (Mbuya Nehanda Maternity Hospital)
Harare, Zimbabwe
Sally Mugabe Central Hospital Maternity Unit
Harare, Zimbabwe
Number of Participants With Postpartum Hemorrhage (PPH)
Calculated estimated blood loss exceeding 1000ml. Estimated Blood Loss (EBL) was calculated using laboratory values of hemoglobin levels before and after procedure. Postpartum hemorrhage is defined as blood loss exceeding 1000mL after cesarean section.
Time frame: Up to day 2 postpartum
Blood Loss Using Hemoglobin Values
Calculated blood loss using hemoglobin values. A mean value of blood loss calculated using hemoglobin values
Time frame: Up to day 2 postpartum
Mean Blood Loss as Estimated by Obstetrician
Visually estimated blood loss at time of caesarean section. Attending obstetrician gave an estimated value of blood loss after delivery.
Time frame: 2 hours
Occurrence of Postpartum Shock
Number of participants who had hypovolemic shock related to PPH as determined by assessing BP and pulse.
Time frame: Up to day 2 postpartum
Use of Supplementary Uterotonic(s)
Number of women requiring supplementary uterotonics
Time frame: Up to day 2 postpartum
Postpartum Transfusion
Number of women given postpartum transfusion
Time frame: Up to day 2 postpartum
Emergency Surgery for PPH
Number of participants who had emergency surgery for PPH including caesarean hysterectomies
Time frame: Up to day 2 postpartum
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Change in Peripartum Haemoglobin
Mean change in haemoglobin concentration between the study group, calculated hemoglobin values at day 2 postpartum minus baseline hemoglobin values.
Time frame: Up to day 2 postpartum
Number of Participants With a Decrease in Peripartum Hemoglobin
Number of participants with a drop in hemoglobin more than 2g/dL or less than 2g/dL
Time frame: Up to day 2 postpartum
Change in Peripartum Haematocrit
Mean change in haematocrit percentage between the study groups from baseline to day 2 postpartum
Time frame: Up to day 2 postpartum
Admission Into Intensive Care Unit
Number of participants transferred to intensive care unit
Time frame: Up to day 2 postpartum
Death From Any Cause
Number of participants who died from any cause
Time frame: Up to date of death or day 4 from admission
Blood Pressure Measurements
Blood pressure at 15, 30, 45, 60, and 120 min after delivery
Time frame: Up to 2 hours after the caesarean section
Number of Mild Adverse Events
Number of mild events of nausea, vomiting, sensation of rings or spots of light in the visual field, dizziness
Time frame: Up to 24 hours after administration
Number of Severe Adverse Events
* Deep vein thrombosis (if the diagnosis is confirmed by Doppler ultrasound) * Pulmonary embolism (if the diagnosis is confirmed by radiological examination) * Myocardial infarction * Seizure * Renal failure requiring dialysis
Time frame: Up to day 3 postpartum
Any Other Unexpected Adverse Event
Number of unexpected events during and after the adminstration of study drug and duration of observation
Time frame: Up to day 3 postpartum
Length of Hospital Stay
Duration of hospital admission in days
Time frame: Up to day 3 postpartum