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Completed

NCT Number: NCT00808067

RELY-ABLE Long Term Multi-center Extension of Dabigatran Treatment in Patients With Atrial Fibrillation Who Completed RE-LY Trial

The purposes of this study are:

1. To evaluate the long-term safety of dabigatran etexilate 2. To assess the effect of a knowledge translation intervention on patient outcomes

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

1160.71.0508 Boehringer Ingelheim Investigational Site, Coffs Harbour, New South Wales, Australia

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Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

Participation in RE-LY, requires long term anticoagulation, provides written informed consent

Exclusion criteria

Permanent discontinuation of dabigatran during RE-LY

Treatment and study plan

Dabigatran dose 1

Drug

dabigatran high dose twice daily

Dabigatran dose 2

Drug

dabigatran low dose twice daily

Primary outcomes

  1. Major Bleeding, Annualized Rate of Subjects With Major Bleeds

    Time frame: up to 43 months

    Annualized event rate (%) = 100 * No. subjects with event / subject-years. Subject-years = Sum (date of last visit - date of first dose + 1) of all subjects / 365.25.

    Major bleeding must have satisfied one or more of the following criteria:

    • Bleeding associated with a reduction in hemoglobin of at least 20 g/L
    • Required transfusion of at least 2 units of blood or packed cells
    • Symptomatic bleeding in a critical area or organ: intraocular, intraspinal, intramuscular with compartment syndrome, retroperitoneal, intra-articular, pericardial, gastrointestinal

    Major bleed were classified as life-threatening if they met one or more of the following criteria:

    • Reduction in hemoglobin of at least 50 g/L
    • Transfusion of at least 4 units of blood or packed cells
    • Symptomatic intracranial bleeding, either subdural or intracerebral
    • Associated with hypotension requiring use of intravenous inotropic agents
    • Required surgical intervention to stop bleeding
    • Resulted in death

Secondary outcomes

  1. Stroke, Annualized Rate of Subjects With Stroke

    Time frame: up to 43 months

    Annualized event rate (%) = 100 * No. subjects with event / subject-years. Subject-years = Sum (date of last visit - date of first dose + 1) of all subjects / 365.25.

    Stroke was an acute onset of a focal neurological deficit of presumed vascular origin lasting for 24 hours or more or resulting in death. The stroke was categorized as ischemic or hemorrhagic or cause unknown based on computerized tomography (CT), magnetic resonance (MR) scanning or autopsy. Fatal stroke was defined as death from any cause within 30 days of stroke. Severity of stroke was assessed by modified Rankin score at discharge from hospital

  2. Non CNS Systemic Embolism (SEE), Annualized Rate of Subjects With Non-CNS SEE

    Time frame: up to 43 months

    Annualized event rate (%) = 100 * No. subjects with event / subject-years. Subject-years = Sum (date of last visit - date of first dose + 1) of all subjects / 365.25.

    Systemic embolism was an acute vascular occlusion of the extremities or any organ (kidneys, mesenteric arteries, spleen, retina or grafts), and was to be documented by angiography, surgery, scintigraphy, or autopsy.

  3. Pulmonary Embolism (PE), Annualized Rate of Subjects With PE

    Time frame: up to 43 months

    Annualized event rate (%) = 100 * No. subjects with event / subject-years. Subject-years = Sum (date of last visit - date of first dose + 1) of all subjects / 365.25.

    Pulmonary Embolism was generally documented by one of the following:

    • an intraluminal filling defect in segmental or more proximal branches on spiral CT scan
    • an intraluminal filling defect or an extension of an existing defect or a sudden cutoff of vessels more than 2.5 mm in diameter on the pulmonary angiogram
    • a perfusion defect of at least 75% of a segment with a local normal ventilation result (high-probability) on ventilation/perfusion lung scan (VPLS)
    • inconclusive spiral CT, pulmonary angiography or lung scintigraphy with demonstration of DVT in the lower extremities by compression ultrasound or venography.
  4. Acute Myocardial Infarction (MI), Annualized Rate of Subjects With MI

    Time frame: up to 43 months

    Annualized event rate (%) = 100 * No. subjects with event / subject-years. Subject-years = Sum (date of last visit - date of first dose + 1) of all subjects / 365.25.

    a. In subjects not undergoing PCI or CABG a subject should have fulfilled at least 2 of the following: i. Typical prolonged severe chest pain or related symptoms or signs suggestive of MI. ii. Elevation of troponin or CK-MB to more than upper level of normal (ULN) or, if CK-MB was elevated at baseline, re-elevation to more than 50% increase above the previous level. iii. Development of significant Q-waves in at least 2 adjacent ECG leads. b. After percutaneous coronary intervention (within 24h). c. After coronary artery bypass grafting (within 72h). d. Silent myocardial infarction. e. Myocardial infarction could also have been demonstrated at autopsy.

  5. Deep Vein Thrombosis, Annualized Rate of Subjects With DVT

    Time frame: up to 43 months

    Annualized event rate (%) = 100 * No. subjects with event / subject-years. Subject-years = Sum (date of last visit - date of first dose + 1) of all subjects / 365.25.

    Deep Vein Thrombosis (DVT) was generally documented by one of the following:

    • abnormal compression ultrasound (CUS),
    • an intraluminal filling defect on venography.
  6. Death, Annualized Rate of Subject Death

    Time frame: up to 43 months

    Annualized event rate (%) = 100 * No. subjects with event / subject-years. Subject-years = Sum (date of last visit - date of first dose + 1) of all subjects / 365.25.

    Deaths were classified as being vascular (sudden/arrhythmic, pump failure death, or other vascular, including bleeding) or non-vascular, due to other specified causes (e.g., malignancy), or of unknown etiology.

  7. Annualized Rate of Subjects With Composite Incidence of Stroke, Non CNS Systemic Embolism (SEE)

    Time frame: up to 43 months

    Annualized event rate (%) = 100 * No. subjects with event / subject-years. Subject-years = Sum (date of last visit - date of first dose + 1) of all subjects / 365.25.

  8. Annualized Rate of Subjects With Composite Incidence of Stroke, Non CNS Systemic Embolism (SEE) and All Cause Death

    Time frame: up to 43 months

    Annualized event rate (%) = 100 * No. subjects with event / subject-years. Subject-years = Sum (date of last visit - date of first dose + 1) of all subjects / 365.25.

  9. Annualized Rate of Subjects With Composite Incidence of Stroke, Non CNS Systemic Embolism (SEE), Pulmonary Embolism (PE), Myocardial Infarction, Vascular Death

    Time frame: up to 43 months

    Annualized event rate (%) = 100 * No. subjects with event / subject-years. Subject-years = Sum (date of last visit - date of first dose + 1) of all subjects / 365.25.

  10. Annualized Rate of Subjects With Composite Incidence of Stroke, Non CNS Systemic Embolism (SEE), Pulmonary Embolism (PE), Myocardial Infarction (MI), All Cause Death and Major Bleed

    Time frame: up to 43 months

    Annualized event rate (%) = 100 * No. subjects with event / subject-years. Subject-years = Sum (date of last visit - date of first dose + 1) of all subjects / 365.25.

  11. Annualized Rate of Subjects With Minor Bleeds

    Time frame: up to 43 months

    Annualized event rate (%) = 100 * No. subjects with event / subject-years. Subject-years = Sum (date of last visit - date of first dose + 1) of all subjects / 365.25.

    Minor bleeds were clinical bleeds that did not fulfill the criteria for major bleeds. Minor bleeds were classified as associated with study medication discontinuation (temporary or permanent) or not.

  12. Annualized Rate of Subjects With Any Bleeds (Major Plus Minor)

    Time frame: up to 43 months

    Annualized event rate (%) = 100 * No. subjects with event / subject-years. Subject-years = Sum (date of last visit - date of first dose + 1) of all subjects / 365.25.

  13. Annualized Rate of Subjects With Intra-Cranial Hemorrhage (ICH)

    Time frame: up to 43 months

    Annualized event rate (%) = 100 * No. subjects with event / subject-years. Subject-years = Sum (date of last visit - date of first dose + 1) of all subjects / 365.25.

Sponsors and collaborators

Lead sponsor

Boehringer Ingelheim

Industry

Registry information

Official study title

RELY-ABLE Long Term Multi-center Extension of Dabigatran Treatment in Patients With Atrial Fibrillation Who Completed the RE-LY Trial and a Cluster Randomised Trial to Assess the Effect of a Knowledge Translation Intervention on Patient Outcomes

Important dates

Study start
2008
Primary completion
2012
Study completion
2012
First posted
Dec 15, 2008
Registry last updated
Jun 9, 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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