The purpose of this study is to assess the use of 2 different Prothrombin Complex Concentrates (PCCs) on their ability to reverse (normalize) the pharmacodynamic effects of rivaroxaban in healthy adult volunteers.
This is a single-center, open-label (volunteers and staff will know the identity of all treatments), randomized (volunteers assigned to treatment by chance) study in healthy adult volunteers to assess the effects of 2 different Prothrombin Complex Concentrates (PCCs) (drugs that act to control bleeding) on the pharmacodynamics (ie, the study of the biochemical and physiological effects of a drug on the body) of rivaroxaban (a drug that acts to prevent the formation of blood clots). Eligible volunteers will receive treatment with rivaroxaban administered orally (by mouth) on Days 1-4. On Day 5, rivaroxaban will be administered orally before the randomized intravenous (IV) (into the vein) administration of 1 of 3 treatments: Profilnine SD (a 3-factor PCC), Beriplex P/N (a 4-factor PCC), or saline. Blood samples will be collected from healthy volunteers during the study to assess the activity of rivaroxaban. Safety will be monitored throughout the study. The total length of participation in the study for each volunteer will be approximately 28 days (includes a 21-day Screening Period and a 7-day Treatment Period).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Enrollment
35
One rivaroxaban 20 mg tablet administered twice a day (b.i.d.) for 4 days (Days 1-4). Interpretation by CTRL: Concentration type = Exact; Number = 20; unit=mg; route: oral use for 4 days.
One rivaroxaban 20 mg tablet administered once daily on Day 5. Interpretation by CTRL: Concentration type = Exact; Number = 20; unit=mg; route: oral use for 1 day.
Single bolus dose of Profilnine SD 50 IU/kg administered by intravenous (IV) injection on Day 5. Interpretation by CTRL: Concentration type = Exact; Number = 50; unit=IU/kg; route: intraveous use.
Unnamed facility
Merksem, Belgium
Measurement of pharmacodynamic (PD) variables: prothrombin time (PT), International Normalized Ratio (INR), activated partial thromboplastin time (aPTT), thrombin generation assay (TGA) and anti-Factor Xa (anti-FXa)
Pharamacodymic (PD) variables (ie, PT, INR, aPTT, TGA, and anti-FXa) are blood coagulation (or clotting) tests. These blood clotting tests will be performed to assess the effects of Prothrombin Complex Concentrates (PCCs) (Profilnine SD or Beriplex P/N) on the pharmacodynamics of rivaroxaban.
Time frame: Days 1-6
Rivaroxaban plasma concentrations
Rivaroxaban plasma concentrations will be measured to assess the pharmacokinetics (the study of the extent and rate of absorption, distribution, metabolism, and excretion of a drug in the body \[ie, the study of what the body does to the drug\]) of rivaroxaban at steady state (steady state is the time when the rate of absorption of the drug into the body equals the rate of elimination from the body).
Time frame: Days 1-6
The number of healthy volunteers reporting adverse events
Adverse events reported are used to assess the safety and tolerability of study drugs.
Time frame: Days 1-6
Changes from baseline in clinical laboratory tests performed
Clinical laboratory tests include chemistry, hematology, urinalysis, and coagulation. Baseline for all laboratory evaluations will be defined as the last evaluation done before the first study drug administration.
Time frame: Day 1; Day 6
Change from baseline in electrocardiogram (ECG) findings
Baseline for all ECG measurements will be defined as the last evaluation done before the first study drug administration.
Time frame: Day 1; Day 6
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Single bolus dose of Beriplex P/N 50 IU/kg administered by intravenous (IV) injection on Day 5 Interpretation by CTRL: Concentration type = Exact ; Number = 50; unit=IU/kg; route : intravenous use
Single 100 cc bolus of saline administered by intravenous (IV) injection on Day 5. Interpretation by CTRL: Concentration type = Exact ; Number = 100; unit=cc; route : intravenous use use.
Change from baseline physical examination findings
Baseline for all physical examinations will be defined as the last evaluation done before the first study drug administration.
Time frame: Day 1; Day 6
Change from baseline in vital signs measurements
Vital signs measurements include pulse/heart rate and blood pressure (systolic and diastolic). Baseline vital signs measurements will be defined as the last evaluation done before the first study drug administration.
Time frame: Day 1; Day 6