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Non-valvular Atrial FibrillationNCT03002740

Bleeding Events and Oral Anticoagulant Treatment in Non-Valvular Atrial Fibrillation

An observational study of Non-valvular Atrial Fibrillation, run by Bristol-Myers Squibb.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

In a population of patients with non-valvular atrial fibrillation (NVAF), and treated with oral anticoagulants (OAC) in routine clinical practice in England, this study will describe patients treated with each OAC, and to estimate and compare event rates of treatment discontinuation, bleeding, and healthcare resource… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Non-valvular Atrial Fibrillation
How many people
0 participants
Where
No sites listed yet
Study dates
31 Jan 2016to 31 Aug 2018
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Adults with NVAF recorded in the UK Clinical Practice Research Datalink(CPRD) and Hospital Episode Statistics(HES) database, and who were newly prescribed with apixaban, rivaroxaban, dabigatran or VKA from 1st December 2012 and 31st December 2015 (or up to the most recent data available).

Who may be able to join

  • Have a prescription for apixaban, rivaroxaban, dabigatran, or VKA during the study period
  • Are ≥ 18 years of age at index date
  • Have ≥ 12 months of computerised medical data prior to index date (date of OAC initiation)
  • Have a record of AF on or ever prior to index date

Who cannot join

  • Have a record for a valvular condition that is considered causal for AF on or ever prior to index date
  • Have a history of the OACs which are prescribed during the study period (ie, history of index OAC, as patients need to be newly prescribed either apixaban, rivaroxaban, dabigatran, or VKA)
  • Have more than 1 OAC exposure which starts on the same date

About this study

Official title: Bleeding Events and Oral Anticoagulant Treatment in Non-Valvular Atrial Fibrillation (Heart-BEAT): A Cohort Study Based on CPRD-HES Data

In a population of patients with non-valvular atrial fibrillation (NVAF), and treated with oral anticoagulants (OAC) in routine clinical practice in England, this study will describe patients treated with each OAC, and to estimate and compare event rates of treatment discontinuation, bleeding, and healthcare resource utilisation (HCRU) across OAC treatments.

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT03002740
Study groupRoleWhat they receive
NVAF patients newly prescribed apixabanNot described
NVAF patients newly prescribed rivaroxabanNot described
NVAF patients newly prescribed dabigatranNot described
NVAF patients newly prescribed VKANot described

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Cumulative incidence of clinically relevant bleeding events following treatment initiation among NVAF patients newly prescribed oral anticoagulants (OACs)

    Measured: Approximately 3 years

Secondary outcomes (5)
  1. Composite of clinical characteristics in patients with non-valvular atrial fibrillation (NVAF) newly prescribed oral anticoagulants (OACs)

    Measured: At baseline

  2. Composite of patient demographics in patients with non-valvular atrial fibrillation (NVAF) newly prescribed oral anticoagulants (OACs)

    Measured: At baseline

  3. Cumulative incidence of a major bleeding event following treatment initiation among NVAF patients newly prescribed oral anticoagulants (OACs)

    Measured: Approximately 3 years

  4. Cumulative incidence of a thromboembolic event following treatment initiation among NVAF patients newly prescribed oral anticoagulants (OACs)

    Measured: Approximately 3 years

  5. Composite of Healthcare resource utilization patients newly prescribed oral anticoagulants (OACs)

    Healthcare resource utilization corresponds to referrals, hospitalizations, prescriptions, and laboratory tests

    Measured: Approximately 3 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Dec 2016 (estimated)
  2. Study start31 Jan 2016
  3. Primary completion31 Aug 2018 (estimated)
  4. Study completion31 Aug 2018 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Retrospective
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03002740
Sponsor's protocol ID
CV185-491
Status last verified
Sep 2018
First submitted
21 Dec 2016
Last updated
10 Oct 2018
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Non-valvular Atrial Fibrillation, run by Bristol-Myers Squibb.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 10 Oct 2018. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Cumulative incidence of clinically relevant bleeding events following treatment initiation among NVAF patients newly prescribed oral anticoagulants (OACs) (time frame: Approximately 3 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Oct 2018.

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