NCT02928133

Brief Summary

Rationale: Adult patients with congenital heart disease (CHD) with atrial tachyarrhythmias need to be anticoagulated. It is not known whether non-vitamin K antagonist oral anticoagulants (NOAC) in this patient group are efficient and safe. Aim: The purpose of the NOTE registry is to evaluate the efficacy and safety of NOACs for thromboembolic prevention in atrial tachyarrhythmias in adult patients with congenital heart disease (CHD). Methods: In this multicenter prospective registry adult CHD patients with atrial tachyarrhythmias on NOACs (switch from VKA or new on anticoagulants) will be followed for a minimum of two years. Primary efficacy endpoints are defined as thromboembolism, i.e. the composite of ischemic stroke, systemic and pulmonary embolism and intracardiac thrombosis, and as the composite of stroke and systemic embolism. Primary safety endpoint is defined as major bleeding according to the ISTH criteria. Secondary endpoints include each thromboembolic or bleeding event analysed separately, all-cause mortality, therapy adherence, quality of life, risk assessment of stroke and evaluation of natural history of atrial tachyarrhythmia in adult CHD patients. Primary endpoint assessment will be performed with a per protocol analysis, and demonstrated as Kaplan Meyer estimates of event free survival and event rates per year.

Trial Health

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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
300

participants targeted

Target at P75+ for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2014

Completed
1.7 years until next milestone

First Submitted

Initial submission to the registry

December 21, 2015

Completed
10 months until next milestone

First Posted

Study publicly available on registry

October 10, 2016

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2018

Completed
Last Updated

October 10, 2016

Status Verified

October 1, 2016

Enrollment Period

4.1 years

First QC Date

December 21, 2015

Last Update Submit

October 6, 2016

Conditions

Keywords

Non-vitamin K antagonist oral anticoagulant (NOAC)Congenital heart diseaseAtrial fibrillationAtrial tachyarrhythmiaThromboembolism

Outcome Measures

Primary Outcomes (4)

  • Thromboembolism

    The composite of ischemic stroke, systemic and pulmonary embolism and intracardiac thrombosis

    2 years after enrolment

  • Stroke

    2 years after enrolment

  • Major bleeding

    The composite of fatal bleeding, symptomatic bleeding in a critical organ (e.g. central nervous system, retroperitoneal, pericardial, intramuscular with compartment syndrome), and bleeding of any kind with the need for \>1 packed cell, or a decrease in hemoglobin of more than 2 g/l / 1,24 mmol/l. \[International Society of Thrombosis and Hemostasis (ISTH) criteria\]

    2 years after enrolment

  • Systemic embolism

    2 years after enrolment

Secondary Outcomes (7)

  • All-cause mortality

    2 years after enrolment

  • Myocardial infarction

    2 years after enrolment

  • Cardiac or non-cardiac surgical and percutaneous interventions

    2 years after enrolment

  • Minor bleedings

    2 years after enrolment

  • General quality of life

    2 years after enrolment

  • +2 more secondary outcomes

Other Outcomes (7)

  • Natural history of atrial tachyarrhythmias in CHD

    2 years after enrolment

  • Natural history of atrial tachyarrhythmias in CHD

    2 years after enrolment

  • Natural history of atrial tachyarrhythmias in CHD

    2 years after enrolment

  • +4 more other outcomes

Eligibility Criteria

Age18 Years - 100 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Registry population consists of CHD patients with tachyarrhythmia's, defined as atrial fibrillation (AF) or atrial tachycardia's (AT), including atrial flutter, on NOACs. Patients with new-onset atrial tachyarrhythmia's who are eligible for NOACs, will be started directly on a NOAC. Patients on vitamin K antagonists (VKA) can be switched actively to NOACs during outpatient clinic visits, in case of agreement of both patient and physician. The switch can be initiated for various reasons, including bleeding complications on VKA, unstable INR measurements, and user friendliness. Eligibility for NOAC use is defined conform clinical practice, i.e. a patient with nonvalvular atrial tachyarrhythmia's, but without a mechanical heart valve, significantly elevated risk of bleeding, impaired renal function, or pregnancy.

You may qualify if:

  • Atrial tachyarrhythmia
  • Congenital heart disease
  • Treatment with NOAC

You may not qualify if:

  • expected survival of less than two years
  • additional indication for anticoagulation besides atrial tachyarrhythmia's

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Academic Medical Center

Amsterdam, 1105AZ, Netherlands

RECRUITING

MeSH Terms

Conditions

Heart Defects, CongenitalAtrial FibrillationTachycardia, Ectopic AtrialThromboembolism

Condition Hierarchy (Ancestors)

Cardiovascular AbnormalitiesCardiovascular DiseasesHeart DiseasesCongenital AbnormalitiesCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesArrhythmias, CardiacPathologic ProcessesPathological Conditions, Signs and SymptomsTachycardia, SupraventricularTachycardiaCardiac Conduction System DiseaseEmbolism and ThrombosisVascular Diseases

Study Officials

  • Hayang Yang, MD

    Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)

    PRINCIPAL INVESTIGATOR
  • Barbara Mulder, MD PhD

    Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)

    STUDY CHAIR
  • Berto Bouma, MD PhD

    Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)

    STUDY CHAIR

Central Study Contacts

Hayang Yang, MD

CONTACT

Berto Bouma, MD PhD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
2 Years
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD PhD

Study Record Dates

First Submitted

December 21, 2015

First Posted

October 10, 2016

Study Start

April 1, 2014

Primary Completion

May 1, 2018

Last Updated

October 10, 2016

Record last verified: 2016-10

Locations