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Oral Direct Factor Xa Inhibitor Rivaroxaban in Patients With Acute Symptomatic Pulmonary Embolism - The EINSTEIN PE Study

Oral Direct Factor Xa Inhibitor Rivaroxaban in Patients With Acute Symptomatic Deep-Vein Thrombosis or Pulmonary Embolism

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00439777
Enrollment
4833
Registered
2007-02-26
Start date
2007-03-31
Completion date
2011-12-31
Last updated
2014-02-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pulmonary Embolism

Brief summary

This is a multicenter, randomized, open-label, assessor-blind, event-driven, non-inferiority program for efficacy with a study treatment duration of 3, 6 or 12 months in patients with confirmed acute symptomatic pulmonary embolism (PE) with or without symptomatic Deep-Vein Thrombosis (DVT) (Einstein-PE).

Detailed description

Within the US 'Johnson & Johnson Pharmaceutical Research & Development, L.L.C.' is sponsor.

Interventions

DRUGRivaroxaban (Xarelto, BAY59-7939)

During the first 3 weeks patients will receive 15 mg rivaroxaban twice-daily. Thereafter, patients will receive rivaroxaban 20 mg once-daily. Rivaroxaban will be administered orally and should be taken with food.

DRUGEnoxaparin overlapping with and followed by VKA

Enoxaparin 1.0 mg/kg twice daily with a minimal duration of 5 days. This 5 days treatment could include the period up to 36 hr before randomization if enoxaparin twice-daily was used. VKA should be started as soon as possible but not later than 48 hours after randomization.

Sponsors

Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
CollaboratorINDUSTRY
Bayer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Confirmed acute symptomatic proximal PE with or without symptomatic DVT

Exclusion criteria

* Legal lower age limitations (country specific) * Thrombectomy, insertion of a caval filter, or use of a fibrinolytic agent to treat the current episode of DVT and/or PE * Other indication for VKA than DVT and/or PE * The pre-randomization anti-coagulant treatment (Criteria # 4) has been prolonged from 36 hours to a maximum of 48 hours.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With Symptomatic Recurrent Venous Thromboembolism [VTE] (i.e. the Composite of Recurrent Deep Vein Thrombosis [DVT] or Fatal or Non-fatal Pulmonary Embolism [PE]) Until the Intended End of Study Treatment3-, 6-, or 12-month study treatment periodAll events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Events were assessed based on either compression ultrasound (for DVT), venography (for DVT), spiral computed tomography (CT) scanning (for PE), pulmonary angiography (for PE), ventilation/perfusion lung scan (for PE), lung scintigraphy (for PE), autopsy (for fatal PE) or unexplained death for which DVT/PE could not be ruled out (for fatal PE), and/or case summaries.

Secondary

MeasureTime frameDescription
Percentage of Participants With an Event for Net Clinical Benefit 1 Until the Intended End of Study Treatment3-, 6-, or 12-month study treatment periodNet clinical benefit 1: composite of recurrent DVT or non-fatal or fatal PE, and major bleeding. Major bleeding was overt bleeding associated with 2 g/dL or greater fall in hemoglobin, leading to a transfusion of ≥2 units, occurring in a critical site or contributing to death. Net clinical benefit was considered greater in those participants with fewer composite events. All events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment, based on either compression ultrasound, venography, spiral computed tomography scanning, pulmonary angiography, ventilation/perfusion lung scan, lung scintigraphy, autopsy or unexplained death for which DVT/PE could not be ruled out, results/films/images of confirmatory testing, and/or case summaries.
Percentage of Participants With the Composite Variable Comprising Recurrent DVT, Non-fatal PE and All Cause Mortality Until the Intended End of Study Treatment3-, 6-, or 12-month study treatment periodAll events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Events were assessed based on either compression ultrasound (for DVT), venography (for DVT), spiral computed tomography (CT) scanning (for PE), pulmonary angiography (for PE), ventilation/perfusion lung scan (for PE), lung scintigraphy (for PE), autopsy (for deaths), results/films/images of confirmatory testing, and/or case summaries.
Percentage of Participants With Recurrent PE Until the Intended End of Study Treatment3-, 6- or 12-month study treatment periodAll events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Events were assessed based on spiral computed tomography scanning, pulmonary angiography, ventilation/perfusion lung scan, lung scintigraphy, autopsy or unexplained death for which DVT/PE could not be ruled out, results/films/images of confirmatory testing, and/or case summaries.
Percentage of Participants With Recurrent DVT Until the Intended End of Study Treatment3-, 6- or 12-month study treatment periodAll events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Events were assessed based on either compression ultrasound, venography, results/films/images of confirmatory testing, and/or case summaries.
Percentage of Participants With Clinically Relevant Bleeding, Treatment-emergent (Time Window: Until 2 Days After Last Dose)3-, 6- or 12-month study treatment periodAll events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Clinically relevant bleeding included major bleeding (overt bleeding associated with 2 g/dL or greater fall in hemoglobin, leading to a transfusion of 2 or more units of packed red blood cells or whole blood, occurring in a critical site or contributing to death) and non-major bleeding associated with medical intervention, unscheduled physician contact, (temporary) cessation of study treatment, discomfort for the participants such as pain, or impairment of activities of daily life.
Percentage of Participants With All Deaths3-, 6- or 12-month study treatment periodAll events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Events were assessed based on either autopsy, results/films/images of confirmatory testing, and/or case summaries.
Percentage of Participants With Other Vascular Events, On-treatment (Time Window: Until 1 Day After Last Dose)3-, 6- or 12-month study treatment periodAll pre-defined vascular events (ST segment elevation myocardial infarction, non ST segment elevation myocardial infarction, unstable angina, ischemic stroke, transient ischemic attack, non-central nervous system systemic embolism or vascular death) were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Events were assessed based results/films/images of confirmatory testing, and/or case summaries.

Other

MeasureTime frameDescription
Percentage of Participants With the Composite Variable Comprising Recurrent DVT, Non-fatal PE and All Cause Mortality During Observational PeriodUp to 30 days after the last intake of study medicationAll events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Events were assessed based on either compression ultrasound (for DVT), venography (for DVT), spiral computed tomography (CT) scanning (for PE), pulmonary angiography (for PE), ventilation/perfusion lung scan (for PE), lung scintigraphy (for PE), autopsy (for deaths), results/films/images of confirmatory testing, and/or case summaries.
Percentage of Participants With an Event for Net Clinical Benefit 1 During Observational PeriodUp to 30 days after the last intake of study medicationNet clinical benefit 1: composite of recurrent DVT or non-fatal or fatal PE, and major bleeding. Major bleeding was overt bleeding associated with 2 g/dL or greater fall in hemoglobin, leading to a transfusion of ≥2 units, occurring in a critical site or contributing to death. Net clinical benefit was considered greater in those participants with fewer composite events. All events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment, based on either compression ultrasound, venography, spiral computed tomography scanning, pulmonary angiography, ventilation/perfusion lung scan, lung scintigraphy, autopsy or unexplained death for which DVT/PE could not be ruled out, results/films/images of confirmatory testing, and/or case summaries.
Percentage of Participants With Recurrent DVT During Observational PeriodUp to 30 days after the last intake of study medicationAll events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Events were assessed based on either compression ultrasound, venography, results/films/images of confirmatory testing, and/or case summaries.
Percentage of Participants With the Individual Components of Efficacy Outcomes During Observational PeriodUp to 30 days after the last intake of study medicationAll events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment, based on either compression ultrasound, venography, spiral computed tomography scanning, pulmonary angiography, ventilation/perfusion lung scan, lung scintigraphy, autopsy or unexplained death for which DVT/PE could not be ruled out, results/films/images of confirmatory testing, and/or case summaries. Major bleeding was overt bleeding associated with 2 g/dL or greater fall in hemoglobin, leading to a transfusion of ≥2 units, occurring in a critical site or contributing to death.
Percentage of Participants With Symptomatic Recurrent VTE (i.e. the Composite of Recurrent DVT or Fatal or Non-fatal PE) During Observational PeriodUp to 30 days after the last intake of study medicationAll events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Events were assessed based on either compression ultrasound (for DVT), venography (for DVT), spiral computed tomography (CT) scanning (for PE), pulmonary angiography (for PE), ventilation/perfusion lung scan (for PE), lung scintigraphy (for PE), autopsy (for fatal PE) or unexplained death for which DVT/PE could not be ruled out (for fatal PE), and/or case summaries.
Percentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study Treatment3-, 6- or 12-month study treatment periodAll events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment, based on either compression ultrasound, venography, spiral computed tomography scanning, pulmonary angiography, ventilation/perfusion lung scan, lung scintigraphy, autopsy or unexplained death for which DVT/PE could not be ruled out, results/films/images of confirmatory testing, and/or case summaries. Major bleeding was overt bleeding associated with 2 g/dL or greater fall in hemoglobin, leading to a transfusion of ≥2 units, occurring in a critical site or contributing to death.

Countries

Andorra, Australia, Austria, Belgium, Brazil, Canada, China, Czechia, Denmark, Estonia, Finland, France, Germany, Hong Kong, Hungary, India, Indonesia, Ireland, Israel, Italy, Latvia, Lithuania, Malaysia, Netherlands, New Zealand, Norway, Philippines, Poland, Puerto Rico, Singapore, South Africa, South Korea, Spain, Sweden, Switzerland, Taiwan, Thailand, United Kingdom, United States

Participant flow

Recruitment details

Participants with confirmed acute symptomatic pulmonary embolism (PE) with or without symptomatic deep vein thrombosis (DVT) were recruited at specialized study sites.

Pre-assignment details

Out of 4843 participants screened, 10 failed screening (6 due to protocol violations, 2 due to investigator decision and another 2 subjects due to technical problems \[interactive voice response system did not work properly\]). 4833 participants were randomized (2420 to rivaroxaban and 2413 to enoxaparin/VKA).

Participants by arm

ArmCount
Rivaroxaban (Xarelto, BAY59-7939)
Participants received 15 mg rivaroxaban (oral) twice daily (b.i.d.) for 3 weeks, followed by 20 mg once daily (o.d.)
2,419
Enoxaparin/VKA
Participants received enoxaparin (subcutaneous) 1.0 mg/kg b.i.d. for minimal 5 days, plus vitamin K antagonist (VKA) at individually titrated doses to achieve a target international normalized ratio (INR) of 2.5 (range: 2.0 - 3.0)
2,413
Total4,832

Withdrawals & dropouts

PeriodReasonFG000FG001
Observational PeriodDeath2720
Observational PeriodLack of Efficacy10
Observational PeriodLost to Follow-up111
Observational PeriodProtocol driven decision point01
Observational PeriodProtocol Violation02
Observational PeriodStudy terminated by sponsor31
Observational PeriodTechnical problems01
Observational PeriodWithdrawal by Subject95
Treatment PeriodAdverse Event11192
Treatment PeriodClinical endpoint reached2613
Treatment PeriodDeath2921
Treatment PeriodDid not take study treatment78
Treatment PeriodLack of Efficacy14
Treatment PeriodLost to Follow-up810
Treatment PeriodParticipant convenience128
Treatment PeriodPhysician Decision718
Treatment PeriodProtocol driven decision point13
Treatment PeriodProtocol Violation2330
Treatment PeriodSite closed by investigator01
Treatment PeriodStudy terminated by sponsor125132
Treatment PeriodTechnical problems31
Treatment PeriodWithdrawal by Subject66118

Baseline characteristics

CharacteristicRivaroxaban (Xarelto, BAY59-7939)Enoxaparin/VKATotal
Age, Continuous57.9 Years
STANDARD_DEVIATION 17.3
57.5 Years
STANDARD_DEVIATION 17.2
57.7 Years
STANDARD_DEVIATION 17.3
Age, Customized
18 - < 40 years
410 Participants432 Participants842 Participants
Age, Customized
40 - < 60 years
794 Participants779 Participants1573 Participants
Age, Customized
60 - < 75 years
740 Participants754 Participants1494 Participants
Age, Customized
≥ 75 years
475 Participants448 Participants923 Participants
Sex: Female, Male
Female
1309 Participants1247 Participants2556 Participants
Sex: Female, Male
Male
1110 Participants1166 Participants2276 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
1,053 / 2,4121,065 / 2,405
serious
Total, serious adverse events
504 / 2,412495 / 2,405

Outcome results

Primary

Percentage of Participants With Symptomatic Recurrent Venous Thromboembolism [VTE] (i.e. the Composite of Recurrent Deep Vein Thrombosis [DVT] or Fatal or Non-fatal Pulmonary Embolism [PE]) Until the Intended End of Study Treatment

All events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Events were assessed based on either compression ultrasound (for DVT), venography (for DVT), spiral computed tomography (CT) scanning (for PE), pulmonary angiography (for PE), ventilation/perfusion lung scan (for PE), lung scintigraphy (for PE), autopsy (for fatal PE) or unexplained death for which DVT/PE could not be ruled out (for fatal PE), and/or case summaries.

Time frame: 3-, 6-, or 12-month study treatment period

Population: The intention-to-treat (ITT) population consisted of all randomized participants with valid informed consent. Participants were analyzed according to the treatment assigned at randomization.

ArmMeasureValue (NUMBER)
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With Symptomatic Recurrent Venous Thromboembolism [VTE] (i.e. the Composite of Recurrent Deep Vein Thrombosis [DVT] or Fatal or Non-fatal Pulmonary Embolism [PE]) Until the Intended End of Study Treatment2.1 Percentage of participants
Enoxaparin/VKAPercentage of Participants With Symptomatic Recurrent Venous Thromboembolism [VTE] (i.e. the Composite of Recurrent Deep Vein Thrombosis [DVT] or Fatal or Non-fatal Pulmonary Embolism [PE]) Until the Intended End of Study Treatment1.8 Percentage of participants
Comparison: The rivaroxaban to comparator hazard ratio was computed with a 95% CI (confidence interval) (two-sided testing). Based on this model, rivaroxaban would be considered at least as effective as the comparator if the upper limit of the CI was less than 2.0.p-value: 0.002695% CI: [0.75, 1.68]Regression, Cox
Secondary

Percentage of Participants With All Deaths

All events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Events were assessed based on either autopsy, results/films/images of confirmatory testing, and/or case summaries.

Time frame: 3-, 6- or 12-month study treatment period

Population: The valid-for-safety analysis population consisted of all participants who were randomized with valid informed consent and received at least one dose of anticoagulant study treatment after randomization (i.e. enoxaparin, warfarin, acenocoumarol, rivaroxaban). Participants were analyzed according to the treatment they actually received.

ArmMeasureGroupValue (NUMBER)
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With All DeathsTreatment-emergent (time window: 7 days)1.5 Percentage of participants
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With All DeathsAll post-randomization2.6 Percentage of participants
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With All DeathsTreatment-emergent (time window: 2 days)1.2 Percentage of participants
Enoxaparin/VKAPercentage of Participants With All DeathsAll post-randomization2.1 Percentage of participants
Enoxaparin/VKAPercentage of Participants With All DeathsTreatment-emergent (time window: 2 days)0.8 Percentage of participants
Enoxaparin/VKAPercentage of Participants With All DeathsTreatment-emergent (time window: 7 days)1.1 Percentage of participants
Secondary

Percentage of Participants With an Event for Net Clinical Benefit 1 Until the Intended End of Study Treatment

Net clinical benefit 1: composite of recurrent DVT or non-fatal or fatal PE, and major bleeding. Major bleeding was overt bleeding associated with 2 g/dL or greater fall in hemoglobin, leading to a transfusion of ≥2 units, occurring in a critical site or contributing to death. Net clinical benefit was considered greater in those participants with fewer composite events. All events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment, based on either compression ultrasound, venography, spiral computed tomography scanning, pulmonary angiography, ventilation/perfusion lung scan, lung scintigraphy, autopsy or unexplained death for which DVT/PE could not be ruled out, results/films/images of confirmatory testing, and/or case summaries.

Time frame: 3-, 6-, or 12-month study treatment period

Population: The intention-to-treat (ITT) population consisted of all randomized participants with valid informed consent. Participants were analyzed according to the treatment assigned at randomization.

ArmMeasureValue (NUMBER)
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With an Event for Net Clinical Benefit 1 Until the Intended End of Study Treatment3.4 Percentage of participants
Enoxaparin/VKAPercentage of Participants With an Event for Net Clinical Benefit 1 Until the Intended End of Study Treatment4.0 Percentage of participants
p-value: 0.27595% CI: [0.63, 1.14]Regression, Cox
Secondary

Percentage of Participants With Clinically Relevant Bleeding, Treatment-emergent (Time Window: Until 2 Days After Last Dose)

All events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Clinically relevant bleeding included major bleeding (overt bleeding associated with 2 g/dL or greater fall in hemoglobin, leading to a transfusion of 2 or more units of packed red blood cells or whole blood, occurring in a critical site or contributing to death) and non-major bleeding associated with medical intervention, unscheduled physician contact, (temporary) cessation of study treatment, discomfort for the participants such as pain, or impairment of activities of daily life.

Time frame: 3-, 6- or 12-month study treatment period

Population: The valid-for-safety analysis population consisted of all participants who were randomized with valid informed consent and received at least one dose of anticoagulant study treatment after randomization (i.e. enoxaparin, warfarin, acenocoumarol, rivaroxaban). Participants were analyzed according to the treatment they actually received.

ArmMeasureValue (NUMBER)
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With Clinically Relevant Bleeding, Treatment-emergent (Time Window: Until 2 Days After Last Dose)10.3 Percentage of participants
Enoxaparin/VKAPercentage of Participants With Clinically Relevant Bleeding, Treatment-emergent (Time Window: Until 2 Days After Last Dose)11.4 Percentage of participants
p-value: 0.2395% CI: [0.76, 1.07]Regression, Cox
Secondary

Percentage of Participants With Other Vascular Events, On-treatment (Time Window: Until 1 Day After Last Dose)

All pre-defined vascular events (ST segment elevation myocardial infarction, non ST segment elevation myocardial infarction, unstable angina, ischemic stroke, transient ischemic attack, non-central nervous system systemic embolism or vascular death) were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Events were assessed based results/films/images of confirmatory testing, and/or case summaries.

Time frame: 3-, 6- or 12-month study treatment period

Population: The valid-for-safety analysis population consisted of all participants who were randomized with valid informed consent and received at least one dose of anticoagulant study treatment after randomization (i.e. enoxaparin, warfarin, acenocoumarol, rivaroxaban). Participants were analyzed according to the treatment they actually received.

ArmMeasureValue (NUMBER)
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With Other Vascular Events, On-treatment (Time Window: Until 1 Day After Last Dose)1.5 Percentage of participants
Enoxaparin/VKAPercentage of Participants With Other Vascular Events, On-treatment (Time Window: Until 1 Day After Last Dose)1.5 Percentage of participants
Secondary

Percentage of Participants With Recurrent DVT Until the Intended End of Study Treatment

All events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Events were assessed based on either compression ultrasound, venography, results/films/images of confirmatory testing, and/or case summaries.

Time frame: 3-, 6- or 12-month study treatment period

Population: The intention-to-treat (ITT) population consisted of all randomized participants with valid informed consent. Participants were analyzed according to the treatment assigned at randomization.

ArmMeasureValue (NUMBER)
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With Recurrent DVT Until the Intended End of Study Treatment0.7 Percentage of participants
Enoxaparin/VKAPercentage of Participants With Recurrent DVT Until the Intended End of Study Treatment0.8 Percentage of participants
p-value: 0.8595% CI: [0.49, 1.79]Regression, Cox
Secondary

Percentage of Participants With Recurrent PE Until the Intended End of Study Treatment

All events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Events were assessed based on spiral computed tomography scanning, pulmonary angiography, ventilation/perfusion lung scan, lung scintigraphy, autopsy or unexplained death for which DVT/PE could not be ruled out, results/films/images of confirmatory testing, and/or case summaries.

Time frame: 3-, 6- or 12-month study treatment period

Population: The intention-to-treat (ITT) population consisted of all randomized participants with valid informed consent. Participants were analyzed according to the treatment assigned at randomization.

ArmMeasureValue (NUMBER)
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With Recurrent PE Until the Intended End of Study Treatment1.4 Percentage of participants
Enoxaparin/VKAPercentage of Participants With Recurrent PE Until the Intended End of Study Treatment1.2 Percentage of participants
p-value: 0.5595% CI: [0.7, 1.93]Regression, Cox
Secondary

Percentage of Participants With the Composite Variable Comprising Recurrent DVT, Non-fatal PE and All Cause Mortality Until the Intended End of Study Treatment

All events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Events were assessed based on either compression ultrasound (for DVT), venography (for DVT), spiral computed tomography (CT) scanning (for PE), pulmonary angiography (for PE), ventilation/perfusion lung scan (for PE), lung scintigraphy (for PE), autopsy (for deaths), results/films/images of confirmatory testing, and/or case summaries.

Time frame: 3-, 6-, or 12-month study treatment period

Population: The intention-to-treat (ITT) population consisted of all randomized participants with valid informed consent. Participants were analyzed according to the treatment assigned at randomization.

ArmMeasureValue (NUMBER)
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Composite Variable Comprising Recurrent DVT, Non-fatal PE and All Cause Mortality Until the Intended End of Study Treatment4.0 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Composite Variable Comprising Recurrent DVT, Non-fatal PE and All Cause Mortality Until the Intended End of Study Treatment3.4 Percentage of participants
Comparison: Stratified by intend treatment duration, adjusted for presence of active malignancy at baseline.p-value: 0.3395% CI: [0.86, 1.56]Regression, Cox
Other Pre-specified

Percentage of Participants With an Event for Net Clinical Benefit 1 During Observational Period

Net clinical benefit 1: composite of recurrent DVT or non-fatal or fatal PE, and major bleeding. Major bleeding was overt bleeding associated with 2 g/dL or greater fall in hemoglobin, leading to a transfusion of ≥2 units, occurring in a critical site or contributing to death. Net clinical benefit was considered greater in those participants with fewer composite events. All events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment, based on either compression ultrasound, venography, spiral computed tomography scanning, pulmonary angiography, ventilation/perfusion lung scan, lung scintigraphy, autopsy or unexplained death for which DVT/PE could not be ruled out, results/films/images of confirmatory testing, and/or case summaries.

Time frame: Up to 30 days after the last intake of study medication

Population: Participants entering the observational period were participants for whom the investigator indicated on the eCRF that the participant entered the observational period or had a confirmed event more than one day and up to 30 days after the last dose as a component of the respective composite outcome.

ArmMeasureValue (NUMBER)
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With an Event for Net Clinical Benefit 1 During Observational Period1.2 Percentage of participants
Enoxaparin/VKAPercentage of Participants With an Event for Net Clinical Benefit 1 During Observational Period1.2 Percentage of participants
Post Hoc

Percentage of Participants With an Event for Net Clinical Benefit 2 During Observational Period

Net clinical benefit 2: composite of recurrent DVT or non-fatal or fatal PE, major bleeding (associated with 2 g/dL or greater fall in hemoglobin, leading to transfusion of ≥2 units, occurring in a critical site or contributing to death), cardiovascular death, myocardial infarction, stroke, and non CNS (central nervous system) systemic embolism. Net clinical benefit was considered greater in those participants with fewer composite events. All events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment, based on either compression ultrasound (DVT), venography (DVT), spiral CT scanning (PE), pulmonary angiography (PE), ventilation/perfusion lung scan (PE), lung scintigraphy (PE), autopsy or unexplained death for which DVT/PE could not be ruled out, results/films/images of confirmatory testing, and/or case summaries.

Time frame: Up to 30 days after the last intake of study medication

Population: Participants entering the observational period were participants for whom the investigator indicated on the eCRF that the participant entered the observational period or had a confirmed event more than one day and up to 30 days after the last dose as a component of the respective composite outcome.

ArmMeasureValue (NUMBER)
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With an Event for Net Clinical Benefit 2 During Observational Period1.5 Percentage of participants
Enoxaparin/VKAPercentage of Participants With an Event for Net Clinical Benefit 2 During Observational Period1.4 Percentage of participants
Post Hoc

Percentage of Participants With an Event for Net Clinical Benefit 2 Until the Intended End of Study Treatment

Net clinical benefit 2: composite of recurrent DVT or non-fatal or fatal PE, major bleeding (associated with 2 g/dL or greater fall in hemoglobin, leading to transfusion of ≥2 units, occurring in a critical site or contributing to death), cardiovascular death, myocardial infarction, stroke, and non CNS (central nervous system) systemic embolism. Net clinical benefit was considered greater in those participants with fewer composite events. All events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment, based on either compression ultrasound (DVT), venography (DVT), spiral CT scanning (PE), pulmonary angiography (PE), ventilation/perfusion lung scan (PE), lung scintigraphy (PE), autopsy or unexplained death for which DVT/PE could not be ruled out, results/films/images of confirmatory testing, and/or case summaries.

Time frame: 3-, 6- or 12-month study treatment period

Population: The intention-to-treat (ITT) population consisted of all randomized participants with valid informed consent. Participants were analyzed according to the treatment assigned at randomization.

ArmMeasureValue (NUMBER)
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With an Event for Net Clinical Benefit 2 Until the Intended End of Study Treatment4.5 Percentage of participants
Enoxaparin/VKAPercentage of Participants With an Event for Net Clinical Benefit 2 Until the Intended End of Study Treatment4.8 Percentage of participants
Other Pre-specified

Percentage of Participants With Recurrent DVT During Observational Period

All events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Events were assessed based on either compression ultrasound, venography, results/films/images of confirmatory testing, and/or case summaries.

Time frame: Up to 30 days after the last intake of study medication

Population: Participants entering the observational period were participants for whom the investigator indicated on the eCRF that the participant entered the observational period or had a confirmed event more than one day and up to 30 days after the last dose as a component of the respective composite outcome.

ArmMeasureValue (NUMBER)
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With Recurrent DVT During Observational Period0.3 Percentage of participants
Enoxaparin/VKAPercentage of Participants With Recurrent DVT During Observational Period0.1 Percentage of participants
Other Pre-specified

Percentage of Participants With Symptomatic Recurrent VTE (i.e. the Composite of Recurrent DVT or Fatal or Non-fatal PE) During Observational Period

All events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Events were assessed based on either compression ultrasound (for DVT), venography (for DVT), spiral computed tomography (CT) scanning (for PE), pulmonary angiography (for PE), ventilation/perfusion lung scan (for PE), lung scintigraphy (for PE), autopsy (for fatal PE) or unexplained death for which DVT/PE could not be ruled out (for fatal PE), and/or case summaries.

Time frame: Up to 30 days after the last intake of study medication

Population: Participants entering the observational period were participants for whom the investigator indicated on the eCRF (electronic case report form) that the participant entered the observational period or had a confirmed event more than one day and up to 30 days after the last dose as a component of the respective composite outcome.

ArmMeasureValue (NUMBER)
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With Symptomatic Recurrent VTE (i.e. the Composite of Recurrent DVT or Fatal or Non-fatal PE) During Observational Period0.9 Percentage of participants
Enoxaparin/VKAPercentage of Participants With Symptomatic Recurrent VTE (i.e. the Composite of Recurrent DVT or Fatal or Non-fatal PE) During Observational Period0.7 Percentage of participants
Other Pre-specified

Percentage of Participants With the Composite Variable Comprising Recurrent DVT, Non-fatal PE and All Cause Mortality During Observational Period

All events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment. Events were assessed based on either compression ultrasound (for DVT), venography (for DVT), spiral computed tomography (CT) scanning (for PE), pulmonary angiography (for PE), ventilation/perfusion lung scan (for PE), lung scintigraphy (for PE), autopsy (for deaths), results/films/images of confirmatory testing, and/or case summaries.

Time frame: Up to 30 days after the last intake of study medication

Population: Participants entering the observational period were participants for whom the investigator indicated on the eCRF that the participant entered the observational period or had a confirmed event more than one day and up to 30 days after the last dose as a component of the respective composite outcome.

ArmMeasureValue (NUMBER)
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Composite Variable Comprising Recurrent DVT, Non-fatal PE and All Cause Mortality During Observational Period2.1 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Composite Variable Comprising Recurrent DVT, Non-fatal PE and All Cause Mortality During Observational Period1.5 Percentage of participants
Other Pre-specified

Percentage of Participants With the Individual Components of Efficacy Outcomes During Observational Period

All events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment, based on either compression ultrasound, venography, spiral computed tomography scanning, pulmonary angiography, ventilation/perfusion lung scan, lung scintigraphy, autopsy or unexplained death for which DVT/PE could not be ruled out, results/films/images of confirmatory testing, and/or case summaries. Major bleeding was overt bleeding associated with 2 g/dL or greater fall in hemoglobin, leading to a transfusion of ≥2 units, occurring in a critical site or contributing to death.

Time frame: Up to 30 days after the last intake of study medication

Population: Participants entering the observational period were participants for whom the investigator indicated on the eCRF that the participant entered the observational period or had a confirmed event more than one day and up to 30 days after the last dose as a component of the respective composite outcome.

ArmMeasureGroupValue (NUMBER)
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Individual Components of Efficacy Outcomes During Observational PeriodDeath (PE cannot be excluded)0 Percentage of participants
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Individual Components of Efficacy Outcomes During Observational PeriodDeath (bleeding)0.09 Percentage of participants
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Individual Components of Efficacy Outcomes During Observational PeriodSymptomatic recurrent PE only0.5 Percentage of participants
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Individual Components of Efficacy Outcomes During Observational PeriodDeath (cardiovascular)0.3 Percentage of participants
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Individual Components of Efficacy Outcomes During Observational PeriodSymptomatic PE and DVT0.09 Percentage of participants
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Individual Components of Efficacy Outcomes During Observational PeriodDeath (other)0.8 Percentage of participants
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Individual Components of Efficacy Outcomes During Observational PeriodSymptomatic recurrent DVT only0.2 Percentage of participants
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Individual Components of Efficacy Outcomes During Observational PeriodMajor bleeding0.3 Percentage of participants
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Individual Components of Efficacy Outcomes During Observational PeriodDeath (PE)0.09 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Individual Components of Efficacy Outcomes During Observational PeriodMajor bleeding0.5 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Individual Components of Efficacy Outcomes During Observational PeriodDeath (PE)0 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Individual Components of Efficacy Outcomes During Observational PeriodDeath (PE cannot be excluded)0.05 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Individual Components of Efficacy Outcomes During Observational PeriodSymptomatic PE and DVT0 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Individual Components of Efficacy Outcomes During Observational PeriodSymptomatic recurrent PE only0.5 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Individual Components of Efficacy Outcomes During Observational PeriodSymptomatic recurrent DVT only0.1 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Individual Components of Efficacy Outcomes During Observational PeriodDeath (bleeding)0.09 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Individual Components of Efficacy Outcomes During Observational PeriodDeath (cardiovascular)0.05 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Individual Components of Efficacy Outcomes During Observational PeriodDeath (other)0.7 Percentage of participants
Other Pre-specified

Percentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study Treatment

All events were adjudicated and confirmed by a central independent adjudication committee blinded to treatment, based on either compression ultrasound, venography, spiral computed tomography scanning, pulmonary angiography, ventilation/perfusion lung scan, lung scintigraphy, autopsy or unexplained death for which DVT/PE could not be ruled out, results/films/images of confirmatory testing, and/or case summaries. Major bleeding was overt bleeding associated with 2 g/dL or greater fall in hemoglobin, leading to a transfusion of ≥2 units, occurring in a critical site or contributing to death.

Time frame: 3-, 6- or 12-month study treatment period

Population: The intention-to-treat (ITT) population consisted of all randomized participants with valid informed consent. Participants were analyzed according to the treatment assigned at randomization.

ArmMeasureGroupValue (NUMBER)
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study TreatmentDeath (PE cannot be excluded)0.3 Percentage of participants
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study TreatmentDeath (bleeding)0.2 Percentage of participants
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study TreatmentSymptomatic recurrent PE only1.0 Percentage of participants
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study TreatmentDeath (cardiovascular)0.4 Percentage of participants
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study TreatmentSymptomatic PE and DVT0.0 Percentage of participants
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study TreatmentDeath (other)1.3 Percentage of participants
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study TreatmentSymptomatic recurrent DVT only0.7 Percentage of participants
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study TreatmentMajor bleeding1.4 Percentage of participants
Rivaroxaban (Xarelto, BAY59-7939)Percentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study TreatmentDeath (PE)0.1 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study TreatmentMajor bleeding2.4 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study TreatmentDeath (PE)0.04 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study TreatmentDeath (PE cannot be excluded)0.2 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study TreatmentSymptomatic PE and DVT0.1 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study TreatmentSymptomatic recurrent PE only0.8 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study TreatmentSymptomatic recurrent DVT only0.7 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study TreatmentDeath (bleeding)0.2 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study TreatmentDeath (cardiovascular)0.1 Percentage of participants
Enoxaparin/VKAPercentage of Participants With the Individual Components of Efficacy Outcomes Until the Intended End of Study TreatmentDeath (other)1.5 Percentage of participants

Source: ClinicalTrials.gov · Data processed: Mar 26, 2026