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Atrial FibrillationPhase 4EASTNCT01288352

Early Treatment of Atrial Fibrillation for Stroke Prevention Trial

A Phase 4 study of Atrial Fibrillation and Stroke, run by Atrial Fibrillation Network at 11 sites in 11 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

EAST prospectively tests the hypothesis that an early, structured rhythm control therapy based on antiarrhythmic drugs and catheter ablation can prevent atrial fibrillation (AF) related complications in patients with AF when compared to usual care. Patients will be randomized to early therapy or usual care. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Atrial Fibrillation, Stroke
Could I receive a placebo?
No, everyone receives an active treatment
How many people
2,789 participants
Where
11 sitesin 11 countries
Study dates
1 Jul 2011to 31 May 2020
Phase
Phase 4
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

Who may be able to join

  • Recent-onset AF (≤ 1 year prior to enrolment)
  • At least one ECG within recent 12 months that documents AF whereas the AF episode must last longer than 30 sec.
  • One of the following:
  • age > 75 years or
  • prior stroke or transient ischemic attack
  • OR two of the following:
Show all 17Show fewer
  • age > 65 years,
  • female sex,
  • arterial hypertension (chronic treatment for hypertension, estimated need for continuous antihypertensive therapy or resting blood pressure > 145/90 mmHg),
  • diabetes mellitus (treated by drugs or insulin) or impaired glucose tolerance
  • severe coronary artery disease (previous myocardial infarction, CABG or PCI)
  • stable heart failure (NYHA II or LVEF <50%),
  • left ventricular hypertrophy on echocardiography (more than 15 mm wall thickness),
  • chronic kidney disease (MDRD stage III or IV),
  • peripheral artery disease.
  • Provision of signed informed consent.
  • Age ≥ 18 years.

Who cannot join

  • Any disease that limits life expectancy to less than 1 year.
  • Participation in another clinical trial, either within the past two months or ongoing
  • Previous participation in the EAST trial.
  • Pregnant women or women of childbearing potential not on adequate birth control: only women with a highly effective method of contraception [oral contraception or intra-uterine device (IUD)] or sterile women can be randomized.
  • Breastfeeding women.
  • Drug abuse.
Show all 14Show fewer
  • Prior AF ablation or surgical therapy of AF.
  • Previous therapy failure on amiodarone, e.g. patients who suffered from symptomatic recurrent AF that required escalation of therapy while on amiodarone.
  • Patients not suitable for rhythm control of AF.
  • Severe mitral valve stenosis.
  • Prosthetic mitral valve.
  • Clinically relevant hepatic dysfunction requiring specific therapy.
  • Clinically manifest thyroid dysfunction requiring therapy. After successful treatment of thyroid dysfunction, patients may be enrolled when their thyroid function is controlled.
  • Severe renal dysfunction (stage V, requiring or almost requiring dialysis).

Trial locations and contacts

11 sites in 11 countries.

11 sites in 11 countries

Belgium1 site
  • 14 Sites

    Different

Other trials in Belgium

Czechia1 site
  • 4 Sites

    Different

Other trials in Czechia

Denmark1 site
  • 2 Sites

    Different

Other trials in Denmark

France1 site
  • 2 Sites

    Different

Other trials in France

Germany1 site
  • 51 Sites

    Different

Other trials in Germany

Italy1 site
  • 12 Sites

    Different

Other trials in Italy

Netherlands1 site
  • 13 Sites

    Different

Other trials in Netherlands

Poland1 site
  • 5 Sites

    Different

Other trials in Poland

Spain1 site
  • 10 Sites

    Different

Other trials in Spain

Switzerland1 site
  • 5 Sites

    Different

Other trials in Switzerland

United Kingdom1 site
  • 22 Sites

    Different

Other trials in United Kingdom

About this study

Official title: Early Therapy of Atrial Fibrillation for Stroke Prevention Trial (EAST).

EAST prospectively tests the hypothesis that an early, structured rhythm control therapy based on antiarrhythmic drugs and catheter ablation can prevent atrial fibrillation (AF) related complications in patients with AF when compared to usual care.

Patients will be randomized to early therapy or usual care. In the early therapy group, patients will receive either catheter ablation (usually by pulmonary vein isolation), or adequate antiarrhythmic drug therapy at an early time point. The initial therapy will be selected by the local investigator. Upon AF recurrence, both modalities will be combined.

Usual care will be conducted following the 2010European Society of Cardiology ( ESC )guidelines for AF treatment. Early rhythm control therapy will be guided by Electrocardiogram (ECG) monitoring.

Being tested
early standardised rhythm control
Keywords
early treatment, rhythm control, atrial fibrillation, cardiovascular complications
Medical subject headings
Atrial Fibrillation, Stroke

What participants receive

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

  • early standardised rhythm controlOther

    Patients in the early therapy group will be treated following the same therapeutic recommendations of the ESC guidelines as the usual care group. In addition, rhythm control therapy will be initiated early with the aim of preventing recurrence and delaying or preventing progression of AF.

    Early-onset rhythm control therapy can consist of:

    1. Optimal antiarrhythmic drug therapy
    2. Catheter ablation with the aim of pulmonary vein isolation (PVI),
    3. Antiarrhythmic drug therapy and catheter ablation may be combined and supplemented by early cardioversion in patients with persistent AF.

    All individual treatment decisions will be taken by the treating study physician considering the labelling of the procedures and drugs and patient preferences.

Study groups in NCT01288352
Study groupRoleWhat they receive
Usual careNo interventionUsual care closely follows the suggestions laid out in the current European Society of Cardiology (ESC) guidelines for AF treatment. In addition to antithrombotic therapy and therapy of underlying heart disease, usual care usually consists of an initial attempt to control symptoms by rate control therapy. Rhythm control interventions are recommended when symptoms can not be controlled by optimal rate control therapy in the usual care group.
early standardised rhythm controlOtherPatients in the early therapy group will be treated following the same therapeutic recommendations of the ESC guidelines as the usual care group. In addition, rhythm control therapy will be initiated early with the aim of preventing recurrence and delaying or preventing progression of AF. Early-onset rhythm control therapy can consist of: 1. Optimal antiarrhythmic drug therapy (Dronedarone, Amiodarone, Flecainide, Propafenone), 2. Catheter ablation with the aim of pulmonary vein isolation (PVI), 3. Antiarrhythmic drug therapy and catheter ablation may be supplemented by early cardioversion in patients with persistent AF. All individual treatment decisions will be taken by the treating study physician considering the labelling of the procedures and drugs and patient preferences.
Receives: Other: early standardised rhythm control

What is being measured

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

  1. A composite of cardiovascular death, stroke and hospitalization due to worsening of heart failure or due to acute coronary syndrome.

    The 1st co-primary outcome parameter is defined as the time to the first occurrence of a composite of cardiovascular death, stroke / transient ischemic attack (TIA), and hospitalization due to worsening of heart failure or due to acute coronary syndrome. The second co-primary outcome is nights spent in hospital per year.

    The 2nd co-primary outcome is nights spent in hospital per year.

    Measured: 8 years

Secondary outcomes (1)
  1. Key 2d outcomes: Each of the components of the 1st outcome, time to recurrent AF, cv hospitalizations, all-cause hospitalizations, left ventricular function, QL, cognitive function, cost of therapy.

    The 2d outcome parameters are defined as

    -all-cause death, AF-related death, time to the 1. occurrence of each of the components of the 1st co-primary outcome, time to recurrent AF (paroxysmal, persistent, long-lasting persistent, permanent) ,AF burden,time to 1. therapy change, time to 1. cv hosp., nr of cv hosp., left ventricular function at 24 months, QoL changes at 24 months and at study termination comp. to baseline, health-related cost calculation and cost of outpatient treatment, change of cognitive function at 24 months compared to BL, cardiac rhythm (sinus rhythm vs. AF), time to: -first symptomatic AF recurrence, -first progression of AF (from paroxysmal to persistent or long-lasting persistent or permanent and each of these components).

    The 1st safety outcome:all deaths, the components of the 1st efficacy parameter plus other AEs rel. to the study intervention with special emphasis on proarrhythmia and complications due to interventions.

    Measured: 8 years

Timeline

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

  1. First posted2 Feb 2011 (estimated)
  2. Study start1 Jul 2011
  3. Primary completion6 Mar 2020
  4. Study completion31 May 2020

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
2,789 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01288352
Sponsor's protocol ID
EAST- AFNET 4
Other IDs
2010-021258-20
Acronym
EAST
Status last verified
Jun 2020
First submitted
1 Feb 2011
Last updated
23 Jul 2020
Results posted
No
Data monitoring committee
Yes
Individual data sharing
Yes: We will share all data that support published results of the trial. Additional data that have not been published will be withheld until six months after publication of these results. Data will be made available as required for specific, approved analyses. Data will be provided from locked, cleaned and de-identified study database. Requests will be reviewed by AFNET as per the predefined subanalysis plan.

Publications

  • International Landmark EAST Study Inverstigates Treatment Options for Atrial Fibrillation

  • Ismaili D, Suling A, Borof K, Goette A, Breithardt G, Camm AJ, Crijns H, Eckardt L, Elvan A, Fabritz L, van Gelder I, Gulizia M, Haegeli L, Heidbuchel H, Kautzner J, Lemoine M, Ng GA, Schnabel RB, Szumowski L, Themistoclakis S, Vardas P, Wegscheider K, Willems S, Zapf A, Metzner A, Rillig A, Kirchhof P. Early rhythm control in patients with atrial fibrillation and cancer: a subgroup analysis of the EAST-AFNET 4 trial. Europace. 2026 Oct 1;28(10):euag269. doi: 10.1093/europace/euag269.

    PubMed 42758310
  • Al-Taie C, Obergassel J, Borof K, Ridder J, Rillig A, Metzner A, Goette A, Magnussen C, Sinner MF, Sommerfeld LC, Willems S, Zeller T, Schnabel RB, Schotten U, Zapf A, Kirchhof P, Fabritz L. Interactions of blood biomolecules with early rhythm control in atrial fibrillation patients: exploratory analysis of the EAST-AFNET 4 biomolecule study. Europace. 2026 Jul 3;28(7):euag149. doi: 10.1093/europace/euag149.

    PubMed 42334441
  • Schenker N, Borof K, Goette A, Schmidt-Lauber C, Breithardt G, Camm AJ, Crijns H, Eckardt L, Elvan A, Fabritz L, van Gelder I, Gulizia M, Haegeli L, Heidbuchel H, Kautzner J, Lemoine M, Ng GA, Schnabel RB, Suling A, Szumowski L, Themistoclakis S, Vardas P, Wegscheider K, Willems S, Zapf A, Metzner A, Rillig A, Kirchhof P. Effectiveness and Safety of Early Rhythm Control in Patients With Atrial Fibrillation and Chronic Kidney Disease. J Am Coll Cardiol. 2026 Jul 14;88(2):227-241. doi: 10.1016/j.jacc.2026.03.087. Epub 2026 May 13.

    PubMed 42126365
  • Koldenhof T, Borof K, Van Gelder IC, Tieleman RG, Lemoine MD, Schnabel RB, Wegscheider K, Kirchhof P, Rienstra M; EAST-AFNET 4 Trial Investigators. Heart rate in early rhythm control therapy in patients with atrial fibrillation. Heart. 2026 Feb 9:heartjnl-2025-326878. doi: 10.1136/heartjnl-2025-326878. Online ahead of print.

    PubMed 41663267
  • Metzner A, Willems S, Borof K, Breithardt G, Camm AJ, Crijns HJGM, Eckardt L, Fabritz L, Gessler N, Goette A, Reissmann B, Schnabel RB, Schotten U, Zapf A, Rillig A, Kirchhof P. Diabetes and Obesity and Treatment Effect of Early Rhythm Control vs Usual Care in Patients With Atrial Fibrillation: A Secondary Analysis of the EAST-AFNET 4 Randomized Clinical Trial. JAMA Cardiol. 2025 Sep 1;10(9):932-941. doi: 10.1001/jamacardio.2025.2374.

    PubMed 40737012
  • Rottner L, Lemoine MD, Eckardt L, Borof K, Camm AJ, Goette A, Breithardt G, Metzner A, Schotten U, Zapf A, Heidbuchel H, Willems S, Crijns H, Schnabel RB, Fabritz L, Magnussen C, Rillig A, Kirchhof P. Safety and efficacy of amiodarone and dronedarone for early rhythm control in EAST-AFNET 4. Clin Res Cardiol. 2025 May 19. doi: 10.1007/s00392-025-02637-0. Online ahead of print.

    PubMed 40387892
  • Kirchhof P, Camm AJ, Crijns HJGM, Piccini JP, Torp-Pedersen C, McKindley DS, Wieloch M, Hohnloser SH. Dronedarone provides effective early rhythm control: post-hoc analysis of the ATHENA trial using EAST-AFNET 4 criteria. Europace. 2025 Mar 28;27(4):euaf080. doi: 10.1093/europace/euaf080.

    PubMed 40295782
  • Rillig A, Eckardt L, Borof K, Camm AJ, Crijns HJGM, Goette A, Breithardt G, Lemoine MD, Metzner A, Rottner L, Schotten U, Vettorazzi E, Wegscheider K, Zapf A, Heidbuchel H, Willems S, Fabritz L, Schnabel RB, Magnussen C, Kirchhof P. Safety and efficacy of long-term sodium channel blocker therapy for early rhythm control: the EAST-AFNET 4 trial. Europace. 2024 Jun 3;26(6):euae121. doi: 10.1093/europace/euae121.

    PubMed 38702961
  • Kany S, Al-Taie C, Roselli C, Pirruccello JP, Borof K, Reinbold C, Suling A, Krause L, Reissmann B, Schnabel RB, Zeller T, Zapf A, Wegscheider K, Fabritz L, Ellinor PT, Kirchhof P. Association of genetic risk and outcomes in patients with atrial fibrillation: interactions with early rhythm control in the EAST-AFNET4 trial. Cardiovasc Res. 2023 Aug 7;119(9):1799-1810. doi: 10.1093/cvr/cvad027.

    PubMed 37264683
  • Van Gelder IC, Ekrami NK, Borof K, Fetsch T, Magnussen C, Mulder BA, Schnabel R, Wegscheider K, Rienstra M, Kirchhof P; EAST-AFNET 4 Trial Investigators. Sex Differences in Early Rhythm Control of Atrial Fibrillation in the EAST-AFNET 4 Trial. J Am Coll Cardiol. 2023 Feb 28;81(8):845-847. doi: 10.1016/j.jacc.2022.12.011. No abstract available.

    PubMed 36813380
  • Jensen M, Suling A, Metzner A, Schnabel RB, Borof K, Goette A, Haeusler KG, Zapf A, Wegscheider K, Fabritz L, Diener HC, Thomalla G, Kirchhof P. Early rhythm-control therapy for atrial fibrillation in patients with a history of stroke: a subgroup analysis of the EAST-AFNET 4 trial. Lancet Neurol. 2023 Jan;22(1):45-54. doi: 10.1016/S1474-4422(22)00436-7.

    PubMed 36517170
  • Eckardt L, Sehner S, Suling A, Borof K, Breithardt G, Crijns H, Goette A, Wegscheider K, Zapf A, Camm J, Metzner A, Kirchhof P. Attaining sinus rhythm mediates improved outcome with early rhythm control therapy of atrial fibrillation: the EAST-AFNET 4 trial. Eur Heart J. 2022 Oct 21;43(40):4127-4144. doi: 10.1093/eurheartj/ehac471.

    PubMed 36036648
  • Rillig A, Borof K, Breithardt G, Camm AJ, Crijns HJGM, Goette A, Kuck KH, Metzner A, Vardas P, Vettorazzi E, Wegscheider K, Zapf A, Kirchhof P. Early Rhythm Control in Patients With Atrial Fibrillation and High Comorbidity Burden. Circulation. 2022 Sep 13;146(11):836-847. doi: 10.1161/CIRCULATIONAHA.122.060274. Epub 2022 Aug 15.

    PubMed 35968706
  • Goette A, Borof K, Breithardt G, Camm AJ, Crijns HJGM, Kuck KH, Wegscheider K, Kirchhof P; EAST-AFNET 4 Investigators. Presenting Pattern of Atrial Fibrillation and Outcomes of Early Rhythm Control Therapy. J Am Coll Cardiol. 2022 Jul 26;80(4):283-295. doi: 10.1016/j.jacc.2022.04.058.

    PubMed 35863844

Questions about this trial

What is this clinical trial studying?

A Phase 4 study of Atrial Fibrillation and Stroke, run by Atrial Fibrillation Network at 11 sites in 11 countries.

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 17 inclusion and 14 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: finished, as of the sponsor's last update on 23 Jul 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 11 sites in Belgium, Czechia, Denmark, France, Germany and 6 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

A composite of cardiovascular death, stroke and hospitalization due to worsening of heart failure or due to acute coronary syndrome. (time frame: 8 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01288352, which also lists 19 linked publications.

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 23 Jul 2020.

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