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Completed

NCT Number: NCT00708435

Efficacy and Safety Study of BERIPLEX® P/N (Kcentra) Compared With Plasma in Patients With Acute Major Bleeding Caused by Anticoagulant Therapy

The purpose of this study is to evaluate efficacy, safety and tolerance of BERIPLEX® P/N (Kcentra) compared with plasma in regard to rapid reversal of coagulopathy induced by coumarin derivatives in subjects who require immediate correction of INR (International Normalized Ratio)and to stop an acute major bleeding.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Study Site 1, Minsk, Belarus

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Male and female subjects ≥ 18 years
  • Subjects who have received oral vitamin K-antagonist therapy
  • Subjects who have acute major bleeding, defined as one of the following: life-threatening or potentially life-threatening, acute bleeding associated with a fall in hemoglobin (Hb) level ≥ 2g/dL, bleeding requiring blood product transfusion
  • INR ≥ 2 within 3 hours before start of study treatment
  • Informed consent has been obtained

Exclusion criteria

  • Expected survival of less than 3 days, or expected surgery in less than 1 day
  • Acute trauma for which reversal of vitamin K antagonists alone would not be expected to control the acute bleeding event
  • Use of unfractionated or low molecular weight heparin use from 24 hours prior to enrollment or expected need within 24 hours after start of infusion
  • For patients with ICH: Glasgow coma score (GCS) < 7; intracerebral hematoma volume > 30cc as assessed by ABC/21; for subdural hematomas: maximum thickness ≥ 10 mm, midline shift ≥ 5 mm; for subarachnoid hemorrhage: any evidence of hydrocephalus; infratentorial ICH location; epidural hematomas; intraventricular extension of hemorrhage; modified Rankin score (mRS) of >3 prior to ICH
  • History of thrombotic event, myocardial infarction, disseminated intravascular coagulation, cerebral vascular accident, transient ischemic attack, unstable angina pectoris, or severe peripheral vascular disease within 3 months of enrollment
  • Known history of antiphospholipid antibody syndrome or lupus anticoagulant antibodies
  • Suspected or confirmed sepsis at time of enrollment
  • Administration of whole blood, plasma, plasma fractions or platelets within 2 weeks prior to inclusion into the study
  • Large blood vessel rupture (e.g. in advanced cancer patient)
  • Pre-existing progressive fatal disease with a life expectancy of less than 2 months
  • Known inhibitors to coagulation factors II, VII, IX, or X; or hereditary protein C or protein S deficiency; or heparin-induced, type II thrombocytopenia
  • Treatment with any other investigational medicinal product within 30 days prior to inclusion into the study
  • Presence or history of hypersensitivity to components of the study medication
  • Pregnant or breast-feeding women
  • Prior inclusion in this study or any other CSL Behring-sponsored Beriplex study

Treatment and study plan

Beriplex® P/N (Kcentra)

Biological

Intravenous infusion, dosage depending on baseline INR, amount of coagulation factor IX and body weight

Other names: Kcentra

fresh frozen plasma

Biological

Intravenous Infusion, dosage depending on baseline INR and body weight

Primary outcomes

  1. Percentage of Participants Achieving Hemostatic Efficacy of Stopping an Ongoing Major Bleed

    Time frame: At 1 and 4 hours after the end of infusion

    Hemostatic efficacy was determined by a blinded independent board as excellent, good, or poor/none, based on prespecified definitions. Assessments of visible or non-visible musculoskeletal bleeding were made at 1 and 4 hours after the end of infusion. Hemostatic efficacy was the binary endpoint of effective or non-effective hemostasis, where 'effective' was a hemostatic efficacy rating of "excellent" or "good," and 'non-effective' was a hemostatic efficacy rating of "poor/none".

  2. Percentage of Participants Who Had a Rapid Decrease of the International Normalized Ratio (INR)

    Time frame: 30 minutes after end of infusion

    A rapid decrease of the international normalized ratio (INR) was defined as an INR ≤ 1.3 at 30 minutes after the end of the infusion. The INR is a standard way to describe the time it takes for blood to clot; an INR range of 0.8 to 1.2 is considered normal for a healthy person who is not using oral anticoagulant therapy.

Secondary outcomes

  1. Percentage of Participants Who Had Hemostatic Efficacy for Visible or Non-visible Musculoskeletal Bleeding

    Time frame: At 3 and 6 hours after the start of infusion

    Hemostatic efficacy was determined by a blinded independent board as excellent, good, or poor/none, based on prespecified definitions. Assessments of visible or non-visible musculoskeletal bleeding were made at 3 and 6 hours after the start of infusion. Hemostatic efficacy was the binary endpoint of effective or non-effective hemostasis, where 'effective' was a hemostatic efficacy rating of "excellent" or "good," and 'non-effective' was a hemostatic efficacy rating of "poor/none".

  2. Incremental in Vivo Recovery (IVR) (Response) of Factors II, VII, IX, and X, Protein C, and Protein S for Beriplex

    Time frame: Before infusion and up to 3 h after the start of infusion

    The incremental IVR [(IU/dL)/(IU/kg)] was calculated as follows: (IU/dL activity rise in plasma)/(IU/kg body weight infused) = [maximum increase in component plasma level within 3 hours compared to pre-infusion (IU/dL)]/{[exact dose of component in drug administered (IU)]/[body weight (kg)]}.

  3. Plasma Levels of Factors II, VII, IX, and X, Protein C, and Protein S

    Time frame: From preinfusion until 24 h after the start of infusion

    Plasma levels are presented as the percentage of normal at pre-infusion and 30 min and 24 h after the start of infusion. The plasma level assay results are reported as a potency relative to a standard, where 100% is considered to be normal.

  4. Percentage of Participants With INR Correction at Various Times After the Start of Infusion

    Time frame: From the start of infusion until INR correction; calculated at 0.5, 1, 3, 6, 12, and 24 h after the start of infusion.

    The time taken from the start of infusion to INR correction (defined as an INR ≤ 1.3) was recorded. The percentage of participants with INR correction was calculated at 0.5, 1, 3, 6, 12, and 24 h after the start of infusion.

  5. Percentage of Participants With INR Correction at Various Times After Randomization

    Time frame: From randomization until INR correction; calculated at 2.5, 3, 5, 8, 14, and 26 h after randomization.

    The time taken from randomization to INR correction (defined as an INR ≤ 1.3) was recorded. The percentage of participants with INR correction was calculated at 2.5, 3, 5, 8, 14, and 26 h after randomization.

  6. Transfusion of Red Blood Cells

    Time frame: From the start of infusion until 24 h after the start of infusion

    Red blood cells were packed red blood cells (PRBCs).

  7. Use of Other Blood Products and Hemostatic Agents

    Time frame: From the start of infusion until 24 h after the start of infusion

    Other blood products and hemostatic agents containing coagulation factors (such as whole blood, plasma, albumin, platelets) not including PRBCs.

  8. 45-Day All-cause Mortality

    Time frame: Until Day 45

  9. Overall Treatment-emergent Adverse Events (TEAEs)

    Time frame: From the start of infusion up to the allowed time window of the Day 10 visit for non-serious AEs and from the start of infusion up to the allowed time window of the Day 45 visit for SAEs.

    Number of participants with TEAEs. Treatment-related AEs were defined as events whose relationship to study treatment was definitely related, probably related, or possibly related in the opinion of the investigator. AEs with missing relationship were considered related to treatment. Serious TEAEs were treatment-emergent SAEs. Deaths reported up to and including Day 45; one additional Beriplex death occurred after Day 45.

Sponsors and collaborators

Lead sponsor

CSL Behring

Industry

Registry information

Official study title

An Open-label, Randomized, Multicenter Phase IIIb Study to Assess the Efficacy, Safety and Tolerance of BERIPLEX® P/N Compared With Plasma for Rapid Reversal of Coagulopathy Induced by Coumarin Derivatives in Subjects With Acute Major Bleeding

Important dates

Study start
2008
Primary completion
2010
Study completion
2010
First posted
Jul 2, 2008
Registry last updated
Feb 3, 2014

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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