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Paroxysmal Atrial Fibrillation.NCT01336075

Atrial Fibrillation: Ablation or Surgical Treatment II: FAST II

A study testing Percutaneous radiofrequency catheter ablation and Mini invasive thoracoscopic radiofrequency ablation in people with Paroxysmal Atrial Fibrillation., run by Aalborg University Hospital at 3 sites in 2 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The purpose of this study is to compare two invasive treatments of symptomatic paroxysmal atrial fibrillation: Percutaneous radiofrequency catheter ablation and mini invasive thoracoscopic radiofrequency ablation in patients referred for a first time invasive treatment for atrial fibrillation. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Paroxysmal Atrial Fibrillation.
What is being tested?
Percutaneous radiofrequency catheter ablation and Mini invasive thoracoscopic radiofrequency ablation
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
26 participants
Where
3 sitesin 2 countries
Study dates
Apr 2011to Dec 2013
Phase
Interventional
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 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Recurrent symptomatic paroxysmal atrial fibrillation
  • Previously failed one or more antiarrhythmic or beta-blocker medication (treatment > 30 days) or if any contraindications against treatment with these drug.
  • Patient is willing and able to attend the scheduled follow-up visits
  • Signed informed consent

Who cannot join

  • Persistent or permanent atrial fibrillation
  • Previously atrial fibrillation ablation procedure
  • Atrial fibrillation secondary to electrolyte imbalance, thyroid disease, or reversible or non-cardiac cause
  • Severe underlying heart disease (congenital heart disease, significant valvular disease, cardiomyopathy with LVEF < 35 %, angina pectoris/ ischemic heart disease).
  • Severe enlargement of left atrium (> 45mm)
  • Patient with pacemaker
Show all 14Show fewer
  • Failure to obtain informed consent
  • Pregnant or breastfeeding women.
  • Patient unable to undergo TEE or with documented left atrial thrombus
  • Patients with co-morbid conditions who, in the opinion of the investigator, constitute increased risk of general anesthesia or port access, e.g. pleural fibrosis, chronic obstructive pulmonary disease (FEV1 < 1.5 L/s).
  • Known internal carotid artery stenosis (> 80 %).
  • Patients, who are enrolled in another clinical trial
  • Life expectancy less than one year
  • Previously TIA/stroke

Trial locations and contacts

3 sites in 2 countries.

3 sites in 2 countries

Denmark2 sites
  • Dept of Cardiothoracic surgery and Dept of Cardiology, Aalborg Hospital

    Aalborg, 9000

  • Odense Universityhospital

    Odense, 5000

Other trials in Denmark

Netherlands1 site
  • St. Antonius Hospital

    Nieuwegein, 3430

Other trials in Netherlands

About this study

Official title: Atrial Fibrillation: Ablation or Surgical Treatment II: FAST II A Randomized Study Comparing Non-pharmacologic Therapy in Patients With Drug-refractory Atrial Fibrillation Referred for a First Time Invasive Treatment.

The purpose of this study is to compare two invasive treatments of symptomatic paroxysmal atrial fibrillation: Percutaneous radiofrequency catheter ablation and mini invasive thoracoscopic radiofrequency ablation in patients referred for a first time invasive treatment for atrial fibrillation.

The hypothesis is, that mini invasive thoracoscopic radiofrequency ablation as a first time invasive treatment is more effective compared to a percutaneous catheter based technique in patients with symptomatic paroxysmal atrial fibrillation refractory or intolerant to at least one antiarrhythmic drug.

Read the detailed description

Atrial fibrillation is characterized by disorganized, rapid, and irregular contraction of the atria. Its effects on hemodynamic and thromboembolic events result in significant morbidity, mortality, impaired quality of life, hospitalizations, and health-cost.

It is the most common sustained cardiac arrhythmia. Over six million Europeans suffer from this arrhythmia. The prevalence is estimated to at least double in the next 50 years and is probably underestimated due to asymptomatic atrial fibrillation. The prevalence increases with age and affects men more often.

Atrial fibrillation is treated medically with varying results and there are no definitive long term curative treatments. The main goal aims at reducing symptoms and preventing disabling complications. Treatment normally includes antithrombotic, rhythm, and/or rate management, New non-pharmacological interventions have evolved over the last decades in order to prevent paroxysmal atrial fibrillation and/or reduce symptoms. The main focus of non-pharmacological intervention has been on percutaneous radiofrequency catheter ablation and surgical maze ablation. Both approaches aim at minimizing the impact of "triggers" from the pulmonary veins by electrical isolation of the veins.

Studies comparing antiarrhythmic drug and radiofrequency ablation indicate that radiofrequency ablation has a higher efficacy rate, a lower rate of complications, and in selected patients radiofrequency ablation reduced the risk of atrial fibrillation recurrence after one year by 65 % compared with antiarrhythmic drug. In a recently published paper the success rate after a mean of 1.3 radiofrequency ablation procedures per patient varied from 57.7% to 75.4% with higher success rates in patients with paroxysmal atrial fibrillation as compared to persistent/permanent atrial fibrillation.

European Society of Cardiology recommends that radiofrequency ablation is reserved for patients who remain symptomatic despite optimal therapy and failed at least one antiarrhythmic drug.

Dr. James Cox introduced the Cox-maze surgical operation for atrial fibrillation in 1987, later modified to Cox-maze III also known as the "cut and sew" maze. It is highly successful in restoring sinus rhythm, with 90-96 % being free from atrial fibrillation at a mean follow-up of 5.4 years. Due to its complexity and technical difficulty the procedure has not been widely adopted. Mini invasive procedures for pulmonary vein isolation have been developed and can now be performed either through mini thoracotomies or using totally thoracoscopic approach. These procedures also hold the advantage of left atrial appendage excision or exclusion. The thoracoscopic maze ablation has shown promising results in small studies in patients with recurrence of atrial fibrillation after earlier catheter based radiofrequency ablation, after a mean follow-up of 11 months 84 % of the patients remain in sinus rhythm. However long-term results are still unknown. The procedure still needs to be compared head to head with catheter based radiofrequency ablation before it should be offered as a standard treatment of atrial fibrillation.

The rationale for eliminating atrial fibrillation with radiofrequency ablation include a potential improvement in quality of life, decreased stroke risk, decreased heart failure risk and improved survival.

Being tested
Percutaneous radiofrequency catheter ablation, Mini invasive thoracoscopic radiofrequency ablation
Keywords
Percutaneous radiofrequency catheter ablation, Mini invasive thoracoscopic radiofrequency ablation
Medical subject headings
Atrial Fibrillation

What participants receive

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

  • Percutaneous radiofrequency catheter ablationProcedure or surgery

    Also called Radiofrequency ablation, Catheter ablation, Atrial fibrillation ablation

    Percutaneous radiofrequency catheter ablation around the rights and lefts pulmonary veins, with complete circumferential ablation.

  • Mini invasive thoracoscopic radiofrequency ablationProcedure or surgery

    Also called Mini invasive mini maze

    Video-assisted thoracoscopic approach for electrical isolation of the pulmonary veins bilaterally and left atrial appendage excision or exclusion.

Study groups in NCT01336075
Study groupRoleWhat they receive
Mini invasive thoracoscopic radiofrequency ablationActive comparatorVideo-assisted thoracoscopic radiofrequency ablation
Receives: Procedure: Mini invasive thoracoscopic radiofrequency ablation
Percutaneous ablationActive comparatorPercutaneous radiofrequency catheter ablation
Receives: Procedure: Percutaneous radiofrequency catheter ablation

What is being measured

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

  1. Freedom from atrial fibrillation with or without antiarrhythmic drug.

    Determined by seven days Holter monitoring, ECG, and patient interviews. An episode of atrial fibrillation/flutter/tachycardia is defined as more than 30 seconds of atrial fibrillation observed on Holter monitoring/telemetry or ECG

    Measured: 12 month follow-up

Secondary outcomes (4)
  1. Quality of life

    Comparison of quality of life before ablation and at follow-up, by 4 different quality of life questionnaires AFEQT, AF-QoL-18, GAD-7 and PHQ-9.

    Measured: 12 month follow-up

  2. Procedural complications

    Thromboembolic events (TIA,Stroke), Mortality, Tamponade, need for thoracotomy, bleeding, infection, esophageal fistula, embolic events, death , pneumothorax and hemothorax.

    Measured: 12 month follow-up

  3. Health economics (cost-effectiveness analysis)

    Measured: 12 month follow-up

  4. Reduction in atrial fibrillation burden

    Measured: 12 month follow-up

Timeline

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

  1. First posted15 Apr 2011 (estimated)
  2. Study startApr 2011
  3. Primary completionDec 2013
  4. Study completionDec 2013

Why it stopped: Too few participants

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 N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
26 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01336075
Sponsor's protocol ID
FAST II
Status last verified
Jan 2014
First submitted
13 Apr 2011
Last updated
3 Jan 2014
Results posted
No
Data monitoring committee
Yes

Publications

  • Camm AJ, Kirchhof P, Lip GY, Schotten U, Savelieva I, Ernst S, Van Gelder IC, Al-Attar N, Hindricks G, Prendergast B, Heidbuchel H, Alfieri O, Angelini A, Atar D, Colonna P, De Caterina R, De Sutter J, Goette A, Gorenek B, Heldal M, Hohloser SH, Kolh P, Le Heuzey JY, Ponikowski P, Rutten FH; ESC Committee for Practice Guidelines. Guidelines for the management of atrial fibrillation: the Task Force for the Management of Atrial Fibrillation of the European Society of Cardiology (ESC). Europace. 2010 Oct;12(10):1360-420. doi: 10.1093/europace/euq350. No abstract available.

    PubMed 20876603
  • Yilmaz A, Geuzebroek GS, Van Putte BP, Boersma LV, Sonker U, De Bakker JM, Van Boven WJ. Completely thoracoscopic pulmonary vein isolation with ganglionic plexus ablation and left atrial appendage amputation for treatment of atrial fibrillation. Eur J Cardiothorac Surg. 2010 Sep;38(3):356-60. doi: 10.1016/j.ejcts.2010.01.058. Epub 2010 Mar 12.

    PubMed 20227287
  • Nair GM, Nery PB, Diwakaramenon S, Healey JS, Connolly SJ, Morillo CA. A systematic review of randomized trials comparing radiofrequency ablation with antiarrhythmic medications in patients with atrial fibrillation. J Cardiovasc Electrophysiol. 2009 Feb;20(2):138-44. doi: 10.1111/j.1540-8167.2008.01285.x. Epub 2008 Sep 3.

    PubMed 18775040
  • Lafuente-Lafuente C, Mouly S, Longas-Tejero MA, Bergmann JF. Antiarrhythmics for maintaining sinus rhythm after cardioversion of atrial fibrillation. Cochrane Database Syst Rev. 2007 Oct 17;(4):CD005049. doi: 10.1002/14651858.CD005049.pub2.

    PubMed 17943835
  • Schilling RJ. Cardioversion of atrial fibrillation: the use of antiarrhythmic drugs. Heart. 2010 Mar;96(5):333-8. doi: 10.1136/hrt.2008.155812. Epub 2009 Nov 11.

    PubMed 19910286
  • Calkins H, Reynolds MR, Spector P, Sondhi M, Xu Y, Martin A, Williams CJ, Sledge I. Treatment of atrial fibrillation with antiarrhythmic drugs or radiofrequency ablation: two systematic literature reviews and meta-analyses. Circ Arrhythm Electrophysiol. 2009 Aug;2(4):349-61. doi: 10.1161/CIRCEP.108.824789. Epub 2009 Jun 2.

    PubMed 19808490
  • Cappato R, Calkins H, Chen SA, Davies W, Iesaka Y, Kalman J, Kim YH, Klein G, Natale A, Packer D, Skanes A, Ambrogi F, Biganzoli E. Updated worldwide survey on the methods, efficacy, and safety of catheter ablation for human atrial fibrillation. Circ Arrhythm Electrophysiol. 2010 Feb;3(1):32-8. doi: 10.1161/CIRCEP.109.859116. Epub 2009 Dec 7.

    PubMed 19995881
  • Cox JL. Cardiac surgery for arrhythmias. J Cardiovasc Electrophysiol. 2004 Feb;15(2):250-62. doi: 10.1046/j.1540-8167.2004.03656.x.

    PubMed 15028063
  • Gaynor SL, Diodato MD, Prasad SM, Ishii Y, Schuessler RB, Bailey MS, Damiano NR, Bloch JB, Moon MR, Damiano RJ Jr. A prospective, single-center clinical trial of a modified Cox maze procedure with bipolar radiofrequency ablation. J Thorac Cardiovasc Surg. 2004 Oct;128(4):535-42. doi: 10.1016/j.jtcvs.2004.02.044.

    PubMed 15457154
  • Shen J, Bailey M, Damiano RJ Jr. Surgery for Lone Atrial Fibrillation: Present State-of-the-Art. Innovations (Phila). 2009 Oct;4(5):248-255. doi: 10.1097/IMI.0b013e3181bb370f.

    PubMed 20473355
  • Sindby JE, Vadmann H, Lundbye-Christensen S, Riahi S, Hjortshoj S, Boersma LVA, Andreasen JJ. Percutaneous versus thoracoscopic ablation of symptomatic paroxysmal atrial fibrillation: a randomised controlled trial - the FAST II study. J Cardiothorac Surg. 2018 Oct 3;13(1):101. doi: 10.1186/s13019-018-0792-8.

    PubMed 30285795

Questions about this trial

What is this clinical trial studying?

A study testing Percutaneous radiofrequency catheter ablation and Mini invasive thoracoscopic radiofrequency ablation in people with Paroxysmal Atrial Fibrillation., run by Aalborg University Hospital at 3 sites in 2 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 4 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: stopped early, as of the sponsor's last update on 3 Jan 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in Denmark, Netherlands. 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.

Are results available for this study?

The study was stopped early (reason given: Too few participants). Results are not available in the source record.

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?

Freedom from atrial fibrillation with or without antiarrhythmic drug. (time frame: 12 month follow-up). 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 NCT01336075, which also lists 11 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 3 Jan 2014.

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