Global Anticoagulant Registry in the Field (GARFIELD)

This study is currently recruiting participants. (see Contacts and Locations)
Verified April 2013 by Thrombosis Research Institute
Information provided by (Responsible Party):
Thrombosis Research Institute Identifier:
First received: March 18, 2010
Last updated: April 10, 2013
Last verified: April 2013

This protocol is a large global registry to determine the behaviour of patients with permanent atrial fibrillation (AF) in real-life practice. This will include newly diagnosed patients with permanent AF irrespective of whether or not they receive antiplatelet (anticoagulant or antithrombotic) therapy. In this regard the GARFIELD registry will be unique because it will consider treatment failure in both those who have commenced anticoagulant (Anticlotting) therapy or other pharmacological treatment to prevent stroke, and those who should have commenced anticoagulant therapy to prevent thromboembolic stroke in permanent AF.

Atrial Fibrillation

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Prospective, Multi Centre, International Registry of Male and Female Patients Newly Diagnosed With Atrial Fibrillation.

Resource links provided by NLM:

Further study details as provided by Thrombosis Research Institute:

Primary Outcome Measures:
  • Thromboembolic stroke [ Time Frame: 4 and 6 years ] [ Designated as safety issue: Yes ]
  • Transient ischaemic attack [ Time Frame: 4 years and 6years ] [ Designated as safety issue: Yes ]
  • Systemic embolisation [ Time Frame: 4 and 6 years ] [ Designated as safety issue: Yes ]
    Frequency of bleeding events (classified as major, clinically relevant non-major and minor)

  • Therapy persistence [ Time Frame: 4 and 6 years ] [ Designated as safety issue: No ]
    Rate of discontinuation, duration of time on therapy, reasons for discontinuation

  • Duration and cause of treatment interruption or suspension [ Time Frame: 4 and 6 years ] [ Designated as safety issue: No ]
  • Analysis of major bleeding events with regard to hospitalisation and outcomes [ Time Frame: 4 and 6 years ] [ Designated as safety issue: No ]
  • Any healthcare resource use (GP, hospital or clinic visits) as a result of anticoagulation [ Time Frame: 4 and 6 years ] [ Designated as safety issue: No ]
  • Mortality [ Time Frame: 4 and 6 years ] [ Designated as safety issue: No ]
  • MAJOR ADVERSE CARDIAC EVENTS (MACE) [ Time Frame: 4 and 6 years ] [ Designated as safety issue: Yes ]
    A MACE is defined as death from any cause, myocardial infarction, CABG or PTCI

  • Frequency and timing of monitoring required in maintaining therapeutic anticoagulation [ Time Frame: 4 and 6 years ] [ Designated as safety issue: No ]
    For patients treated with VKA additionally:

  • INR recordings in relation to therapeutic range [ Time Frame: 4 and 6 years ] [ Designated as safety issue: No ]
    For patients treated with VKA additionally

  • Use of bridging anticoagulation necessitated by vitamin-K antagonist interruption [ Time Frame: 4 and 6 years ] [ Designated as safety issue: No ]
    For patients treated with VKA additionally

Secondary Outcome Measures:
  • Peripheral / non-CNS embolism [ Time Frame: 4 and 6 years ] [ Designated as safety issue: Yes ]
  • Heart failure [ Time Frame: 4 and 6 years ] [ Designated as safety issue: Yes ]
  • Myocardial infarction [ Time Frame: 4 and 6 years ] [ Designated as safety issue: Yes ]

Estimated Enrollment: 55000
Study Start Date: December 2009
Estimated Study Completion Date: September 2015
Estimated Primary Completion Date: September 2015 (Final data collection date for primary outcome measure)
Validation Cohort
  1. Validation Cohort will be added to the first cohort to register patients in select countries. 5000 patients with permanent AF enrolled will be enrolled.
  2. The patients registered will be diagnosed with permanent atrial fibrillation, regardless of therapy, with a diagnosis history longer than six months prior to enrolment
  3. Data for patients in the validation cohort will be collected retrospectively from the time of diagnosis to entry in the registry, and prospectively for up to 2 years .
Prospective Cohort

It is to identify sufficient number of sites globally in hospital, community or anticoagulation clinic settings throughout the world for representation in major countries with focus on the GP setting. 50,000 patients of newly diagnosed permanent AF with at least one additional risk factor for stroke will be enrolled to collect a representative sample. Patients will be enrolled as 5 independent cohorts of 10,000 patients each. Additional validation cohort of 5,000 patients with established permanent Atrial Fibrillation with at least one additional risk factor for stroke regardless of therapy and having been managed at sites for longer than 6 months will also be included in addition to the first prospective cohort of 10,000 patients.

For the validation cohort there will be in addition to the prospective follow-up, a retrospective data-collection for minimum of six months up to 2 years.

  Show Detailed Description


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population

Male and female patients newly diagnosed with permanent atrial fibrillation (AF) who are with at least one additional risk of stroke from 18 countries globally.


Inclusion Criteria:

  • Provide written informed consent
  • Age 18 years and over
  • New diagnosis of permanent atrial fibrillation (diagnosis within the last 6 weeks) with at least one risk factor for stroke

Exclusion criteria:

  • No further follow-up envisaged or possible within enrolling hospital or with associated family practitioner.
  • Patients with a transient cause for atrial fibrillation which is reversible

Inclusion criteria of Patients for Validation Cohort

  • Provide written informed consent
  • Age 18 years and over
  • Patients of permanent AF, regardless of therapy, with a diagnosis longer than six months before enrolment

Exclusion Criteria for patients of Validation Cohort Patients for whom no further follow-up can be envisaged or possible within enrolling hospital or with associated family practitioner will be excluded

  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01090362

Contact: Gloria Kayani 00442073518390
Contact: Oscar Howie 00442073518316

Australia, New South Wales
Penny Astridge Not yet recruiting
Cardiff, New South Wales, Australia, 2285
Principal Investigator: Penny Astridge         
Australia, Tasmania
Bhuwan Singh Not yet recruiting
Launceston, Tasmania, Australia, 7250
Principal Investigator: Bhuwan Singh         
Harry Gibbs Not yet recruiting
Lismore, Australia, 2480
Principal Investigator: Harry Gibbs         
Heinz Drexel Not yet recruiting
Feldkirch, Austria, 6807
Principal Investigator: Heinz Drexel         
Marianne Brodmann Recruiting
Graz, Austria, 8036
Principal Investigator: Marianne Brodmann, MD         
Kurt Lenz Not yet recruiting
Linz, Austria, 4014
Principal Investigator: Kurt Lenz         
Johannes Föchterle Not yet recruiting
Linz, Austria, 4040
Principal Investigator: Johannes Föchterle         
Claus Hagn Not yet recruiting
Völs, Austria, 6176
Principal Investigator: Claus Hagn         
Bernd Eber Not yet recruiting
Wels, Austria, 4600
Principal Investigator: Bernd Eber         
Kurt Huber Not yet recruiting
Wien, Austria, 1160
Principal Investigator: Kurt Huber         
José Rocha Not yet recruiting
Faria Neto, Curitiba, Brazil, 80215-901
Principal Investigator: José Rocha         
Weimar Barroso Not yet recruiting
Goiânia, Goiás, Brazil, 74223-130
Principal Investigator: Weimar Barroso         
Carlos Scherr Not yet recruiting
Río de Janeiro, Rio de Janeiro, Brazil, 22410-003
Principal Investigator: Carlos Scherr         
Mario Maranhão Not yet recruiting
Curitiba, Brazil, 80320-320
Principal Investigator: Mario Maranhão         
João Souza Neto Not yet recruiting
Fortaleza, Brazil, 60846-190
Principal Investigator: João Souza Neto         
Benito Garbelini Not yet recruiting
Marília, Brazil, 17515-460
Principal Investigator: Benito Garbelini         
Andre Steffens Not yet recruiting
Pelotas, Brazil, 96015-290
Principal Investigator: Andre Steffens         
Dario Sobral- Filho Not yet recruiting
Recife, Brazil, 50100-130
Principal Investigator: Dario Sobral- Filho         
Dikran Armaganijan Not yet recruiting
São Paulo, Brazil, 04012-180
Principal Investigator: Dikran Armaganijan         
Fábio Lário Not yet recruiting
São Paulo, Brazil, 01323-903
Principal Investigator: Fábio Lário         
Renato Lopes Not yet recruiting
São Paulo, Brazil, 04039-002
Principal Investigator: Renato Lopes         
Patrícia Smith Not yet recruiting
São Paulo, Brazil, 05019-010
Principal Investigator: Patrícia Smith         
Ricardo Pavanello Not yet recruiting
São Paulo, Brazil, 04004-030
Principal Investigator: Ricardo Pavanello         
Jefferso Jaber Not yet recruiting
São Paulo, Brazil, 08270-070
Principal Investigator: Jefferso Jaber         
Sponsors and Collaborators
Thrombosis Research Institute
Study Director: Ajay K Kakkar, MD Thrombosis Research Institute, London, UK
  More Information

Emmerich J, Hauzey J-YL, Bath PMW, Connoly SJ. Indication for antithrombotic therapy for atrial fibrillation: reconciling the guidelines with clinical practice. European Heart Journal Supplements 2005;7(Supplement C):C28-C33.

Additional publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Thrombosis Research Institute Identifier: NCT01090362     History of Changes
Other Study ID Numbers: TRI08888
Study First Received: March 18, 2010
Last Updated: April 10, 2013
Health Authority: Austria: Ethikkommission

Keywords provided by Thrombosis Research Institute:
Atrial fibrillation
Stroke prevention

Additional relevant MeSH terms:
Atrial Fibrillation
Arrhythmias, Cardiac
Heart Diseases
Cardiovascular Diseases
Pathologic Processes processed this record on October 19, 2014