Human Data
Tranexamic acid passes through the placenta. The concentration in cord blood after an intravenous injection of 10 mg/kg to pregnant women is about 30 mg/L, as high as in the maternal blood.
There were 13 clinical studies that described fetal and/or neonatal functional issues such as low Apgar score, neonatal sepsis, cephalohematoma and 9 clinical studies that discussed alterations to growth including low birth weight and preterm birth at 22-36 weeks of gestation in fetuses and infants exposed to tranexamic acid in-utero.
Animal Data
In embryo-fetal development studies, tranexamic acid was administered to pregnant mice from Gestation day (GD) 6 through GD 12 and rats from GD 9 through GD 14 at daily doses of 0.3 or 1.5 g/kg. There was no evidence of adverse developmental outcomes in mice and rats at multiple of 3 and 6 times the maximum recommended human dose based on body surface area in the mouse and rat, respectively.
In rabbits, tranexamic acid was administered intravenously at doses of 50, 100, or 200 mg/kg/day or orally at doses of 100, 200, or 400 mg/kg/day from GD 6 through GD 18. There was no evidence of adverse developmental outcomes at dose multiples of 2 or 3 times, respectively, the maximum recommended human dose based on body surface area.
Intravenous doses of 200 mg/kg/day showed slightly retarded weight gain in pregnant rabbits.
Risk Summary
Published literature reports the presence of tranexamic acid in human milk. There are no data on the effects of tranexamic acid on the breastfed child or the effects on milk production. The developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for Tranexamic Acid in Sodium Chloride Injection and any potential adverse effects on the breastfed child from Tranexamic Acid in Sodium Chloride Injection or from the underlying maternal condition.
Contraception
Concomitant use of Tranexamic Acid in Sodium Chloride Injection, which is an antifibrinolytic, with hormonal contraceptives may increase the risk for thromboembolic adverse reactions. Advise patients to use an effective alternative (nonhormonal) contraceptive method [see Warnings and Precautions (5.5), Drug Interactions (7.1)].
Distribution
The initial volume of distribution is about 9 to 12 liters. The plasma protein binding of tranexamic acid is about 3% at therapeutic plasma levels and seems to be fully accounted for by its binding to plasminogen. Tranexamic acid does not bind to serum albumin.
Elimination
After an intravenous dose of 1 g, the plasma concentration time curve shows a triexponential decay with a half-life of about 2 hours for the terminal elimination phase.
Excretion
Urinary excretion is the main route of elimination via glomerular filtration. Overall renal clearance is equal to overall plasma clearance (110 to 116 mL/min), and more than 95% of the dose is excreted in the urine as unchanged drug. Excretion of tranexamic acid is about 90% at 24 hours after intravenous administration of 10 mg/kg body weight.
Specific Populations
Patients with Renal Impairment
The blood levels of tranexamic acid are increased in patients with renal insufficiency. Urinary excretion following a single intravenous injection of tranexamic acid declines as renal function decreases. Following a single 10 mg/kg intravenous injection of tranexamic acid, the 24-hour urinary fractions of tranexamic acid with serum creatinine concentrations 1.4 – 2.8, 2.8 – 5.7, and greater than 5.7 mg/dL were 51, 39, and 19%, respectively. The 24-hour tranexamic acid plasma concentrations for these patients demonstrated a direct relationship to the degree of renal impairment. Therefore, dose adjustment is needed in patients with renal impairment [see Dosage and Administration (2.2), Use in Specific Populations (8.6)].
Drug Interaction Studies
No studies of interactions between Tranexamic Acid in Sodium Chloride Injection and other drugs have been conducted.
Thromboembolic Risk
- Inform patients that Tranexamic Acid in Sodium Chloride Injection may increase the risk of venous and arterial thrombosis or thromboembolism and to contact their healthcare provider for any signs or symptoms suggestive of thromboembolism.
- Advise patients using hormonal contraception that combined use with Tranexamic Acid in Sodium Chloride Injection may increase the risk for thromboembolic adverse reactions and to use effective alternative (nonhormonal) contraception during therapy with Tranexamic Acid in Sodium Chloride Injection [see Warnings and Precautions (5.1), Drug Interactions (7.1), Use in Specific Populations (8.3)].
Seizures
Inform patients that Tranexamic Acid in Sodium Chloride Injection may cause seizures and to contact their healthcare provider for any signs or symptoms suggestive of seizures [see Warnings and Precautions (5.2)].
Hypersensitivity Reactions
Inform patients that Tranexamic Acid in Sodium Chloride Injection may cause hypersensitivity reactions and to contact their healthcare provider for any signs or symptoms of hypersensitivity reactions [see Warnings and Precautions (5.3)].
Visual Disturbances
Inform patients that Tranexamic Acid in Sodium Chloride Injection can cause visual disturbance and that they should report any eye symptoms or change in their vision to their healthcare provider and to follow-up with an ophthalmologist for a complete ophthalmologic evaluation, including dilated retinal examination of the retina [see Warnings and Precautions (5.4)].
Risk of Driving and Operating Machinery
Inform patients that Tranexamic Acid in Sodium Chloride Injection may cause dizziness, and that the patient should be cautioned about driving, operating machinery, or performing hazardous tasks while taking Tranexamic Acid in Sodium Chloride Injection [see Warnings and Precautions (5.5)].
Manufactured for:
Fresenius Kabi Logo (Tra19 0001 02)
Lake Zurich, IL 60047
www.fresenius-kabi.com/us
Made in Norway
451837