Trial Outcomes & Findings for Perioperative Administration of Tranexamic Acid for Placenta Previa and Accreta Study (NCT NCT02806024)

NCT ID: NCT02806024

Last Updated: 2019-12-03

Results Overview

EBL is estimated by the surgeon and anesthesia team at the completion of the surgery (cesarean delivery \&/or cesarean hysterectomy).

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

14 participants

Primary outcome timeframe

1-3 hours (will be determined at the completion of the surgery).

Results posted on

2019-12-03

Participant Flow

Eligible participants were women with suspicion of morbidly adherent placenta (accreta) on imaging, or women with placenta previa and two or more cesareans (CS).

One patient was excluded from the study after consenting to participate, but before delivery. Two consented patients delivered at night, and were unable to be randomized.

Participant milestones

Participant milestones
Measure
Treatment Arm (Tranexamic Acid, or TXA)
Patients will be randomized to treatment or placebo arms preoperatively. In our treatment arm of pregnant patients with suspected placenta accreta or at high risk for placenta accreta, patients will receive 1 gram intravenous TXA administered over 10 minutes immediately after delivery of the infant. The drug will be prepared and ready to hang at the beginning of the case. The study drug will be administered only once. Tranexamic Acid
Placebo Arm
Patients will be randomized to treatment or placebo arms preoperatively. In our placebo arm of pregnant patients with suspected placenta accreta, patients will receive plain normal saline in a 50 cc bag identical to the preparation of study drug immediately after delivery of the infant. Placebo Drug: 50 cc Normal Saline IV
Overall Study
STARTED
7
7
Overall Study
COMPLETED
6
5
Overall Study
NOT COMPLETED
1
2

Reasons for withdrawal

Reasons for withdrawal
Measure
Treatment Arm (Tranexamic Acid, or TXA)
Patients will be randomized to treatment or placebo arms preoperatively. In our treatment arm of pregnant patients with suspected placenta accreta or at high risk for placenta accreta, patients will receive 1 gram intravenous TXA administered over 10 minutes immediately after delivery of the infant. The drug will be prepared and ready to hang at the beginning of the case. The study drug will be administered only once. Tranexamic Acid
Placebo Arm
Patients will be randomized to treatment or placebo arms preoperatively. In our placebo arm of pregnant patients with suspected placenta accreta, patients will receive plain normal saline in a 50 cc bag identical to the preparation of study drug immediately after delivery of the infant. Placebo Drug: 50 cc Normal Saline IV
Overall Study
Night Delivery
1
1
Overall Study
DVT during antepartum admission
0
1

Baseline Characteristics

Perioperative Administration of Tranexamic Acid for Placenta Previa and Accreta Study

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Treatment Arm (Tranexamic Acid, or TXA)
n=6 Participants
Patients will be randomized to treatment or placebo arms preoperatively. In our treatment arm of pregnant patients with suspected placenta accreta or at high risk for placenta accreta, patients will receive 1 gram intravenous TXA administered over 10 minutes immediately after delivery of the infant. The drug will be prepared and ready to hang at the beginning of the case. The study drug will be administered only once. Tranexamic Acid
Placebo Arm
n=5 Participants
Patients will be randomized to treatment or placebo arms preoperatively. In our placebo arm of pregnant patients with suspected placenta accreta, patients will receive plain normal saline in a 50 cc bag identical to the preparation of study drug immediately after delivery of the infant. Placebo Drug: 50 cc Normal Saline IV
Total
n=11 Participants
Total of all reporting groups
Age, Continuous
29.7 years
STANDARD_DEVIATION 2.2 • n=5 Participants
31.0 years
STANDARD_DEVIATION 7.9 • n=7 Participants
30.2 years
STANDARD_DEVIATION 5 • n=5 Participants
Sex: Female, Male
Female
6 Participants
n=5 Participants
5 Participants
n=7 Participants
11 Participants
n=5 Participants
Sex: Female, Male
Male
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race/Ethnicity, Customized
Hispanic
4 Participants
n=5 Participants
3 Participants
n=7 Participants
7 Participants
n=5 Participants
Race/Ethnicity, Customized
Asian
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Race/Ethnicity, Customized
Black
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Race/Ethnicity, Customized
White
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 1-3 hours (will be determined at the completion of the surgery).

Population: Mean estimated blood loss (EBL) was calculated as below.

EBL is estimated by the surgeon and anesthesia team at the completion of the surgery (cesarean delivery \&/or cesarean hysterectomy).

Outcome measures

Outcome measures
Measure
Treatment Arm (Tranexamic Acid, or TXA)
n=6 Participants
Patients will be randomized to treatment or placebo arms preoperatively. In our treatment arm of pregnant patients with suspected placenta accreta or at high risk for placenta accreta, patients will receive 1 gram intravenous TXA administered over 10 minutes immediately after delivery of the infant. The drug will be prepared and ready to hang at the beginning of the case. The study drug will be administered only once. Tranexamic Acid
Placebo Arm
n=5 Participants
Patients will be randomized to treatment or placebo arms preoperatively. In our placebo arm of pregnant patients with suspected placenta accreta, patients will receive plain normal saline in a 50 cc bag identical to the preparation of study drug immediately after delivery of the infant. Placebo Drug: 50 cc Normal Saline IV
Estimated Blood Loss (EBL)
3116 cc
Standard Deviation 3947
9420 cc
Standard Deviation 12474

SECONDARY outcome

Timeframe: Pulled from operative note, completed by the time of discharge.

Population: The mean pRBCs units given intraoperatively is presented in the table below.

Total number of units of blood transfused (whole blood, platelets, cryoprecipitate, and fresh frozen plasma) intra-operatively is a secondary outcome.

Outcome measures

Outcome measures
Measure
Treatment Arm (Tranexamic Acid, or TXA)
n=6 Participants
Patients will be randomized to treatment or placebo arms preoperatively. In our treatment arm of pregnant patients with suspected placenta accreta or at high risk for placenta accreta, patients will receive 1 gram intravenous TXA administered over 10 minutes immediately after delivery of the infant. The drug will be prepared and ready to hang at the beginning of the case. The study drug will be administered only once. Tranexamic Acid
Placebo Arm
n=5 Participants
Patients will be randomized to treatment or placebo arms preoperatively. In our placebo arm of pregnant patients with suspected placenta accreta, patients will receive plain normal saline in a 50 cc bag identical to the preparation of study drug immediately after delivery of the infant. Placebo Drug: 50 cc Normal Saline IV
Blood Transfusion (Number of Units Transfused) Intraoperatively
5.2 units
Standard Deviation 8
17.6 units
Standard Deviation 25

Adverse Events

Treatment Arm (Tranexamic Acid, or TXA)

Serious events: 0 serious events
Other events: 4 other events
Deaths: 0 deaths

Placebo Arm

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Treatment Arm (Tranexamic Acid, or TXA)
n=6 participants at risk
Patients will be randomized to treatment or placebo arms preoperatively. In our treatment arm of pregnant patients with suspected placenta accreta or at high risk for placenta accreta, patients will receive 1 gram intravenous TXA administered over 10 minutes immediately after delivery of the infant. The drug will be prepared and ready to hang at the beginning of the case. The study drug will be administered only once. Tranexamic Acid
Placebo Arm
n=5 participants at risk
Patients will be randomized to treatment or placebo arms preoperatively. In our placebo arm of pregnant patients with suspected placenta accreta, patients will receive plain normal saline in a 50 cc bag identical to the preparation of study drug immediately after delivery of the infant. Placebo Drug: 50 cc Normal Saline IV
Blood and lymphatic system disorders
DVT / PE
0.00%
0/6 • Enrollment to 6 weeks post partum.
Patients were seen for routine post partum care and chart review was performed to glean adverse events from their hospital stay for delivery.
0.00%
0/5 • Enrollment to 6 weeks post partum.
Patients were seen for routine post partum care and chart review was performed to glean adverse events from their hospital stay for delivery.

Other adverse events

Other adverse events
Measure
Treatment Arm (Tranexamic Acid, or TXA)
n=6 participants at risk
Patients will be randomized to treatment or placebo arms preoperatively. In our treatment arm of pregnant patients with suspected placenta accreta or at high risk for placenta accreta, patients will receive 1 gram intravenous TXA administered over 10 minutes immediately after delivery of the infant. The drug will be prepared and ready to hang at the beginning of the case. The study drug will be administered only once. Tranexamic Acid
Placebo Arm
n=5 participants at risk
Patients will be randomized to treatment or placebo arms preoperatively. In our placebo arm of pregnant patients with suspected placenta accreta, patients will receive plain normal saline in a 50 cc bag identical to the preparation of study drug immediately after delivery of the infant. Placebo Drug: 50 cc Normal Saline IV
Renal and urinary disorders
Urinary tract injury during surgery (cystotomy or ureter injury)
33.3%
2/6 • Number of events 2 • Enrollment to 6 weeks post partum.
Patients were seen for routine post partum care and chart review was performed to glean adverse events from their hospital stay for delivery.
40.0%
2/5 • Number of events 2 • Enrollment to 6 weeks post partum.
Patients were seen for routine post partum care and chart review was performed to glean adverse events from their hospital stay for delivery.
Surgical and medical procedures
Wound infection
16.7%
1/6 • Number of events 1 • Enrollment to 6 weeks post partum.
Patients were seen for routine post partum care and chart review was performed to glean adverse events from their hospital stay for delivery.
20.0%
1/5 • Number of events 1 • Enrollment to 6 weeks post partum.
Patients were seen for routine post partum care and chart review was performed to glean adverse events from their hospital stay for delivery.
Surgical and medical procedures
IR balloon complication
16.7%
1/6 • Number of events 1 • Enrollment to 6 weeks post partum.
Patients were seen for routine post partum care and chart review was performed to glean adverse events from their hospital stay for delivery.
0.00%
0/5 • Enrollment to 6 weeks post partum.
Patients were seen for routine post partum care and chart review was performed to glean adverse events from their hospital stay for delivery.

Additional Information

Mallory Kremer

University of Washington

Phone: 206.616.5258

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place