Interventional Strategies in Treatment of Atrial Fibrillation:

Status Completed

Clinical Trial Summary

Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia, associated with an increased risk of morbidity and mortality1. The management of AF patients is aimed at reducing symptoms and at preventing severe complications associated with AF. In the last years, two new strategies have emerged with different objectives. In the PROTECT AF study2, percutaneous closure of the Left Atrial Appendage (LAA) with a closure device provided an alternative strategy to oral anticoagulation for stroke prophylaxis. The AFFIRM trial3 has shown that drug-based management of AF with a rhythm-control strategy conferred no advantage over a rate-control strategy in cardiovascular mortality and might be associated with an increased noncardiovascular death rate4. Catheter ablation has gained a greater place in the rhythm control strategy, showing superiority in maintaining sinus rhythm in comparison with AAD5. However, in persistent AF, repeat ablation procedures are necessary in up to 70% of patients to achieve sinus rhythm at a long-term follow-up6-7.

This prospective, randomized trial will compare the percutaneous closure of the LAA combined with a rate-control strategy to catheter ablation in the management of patients with persistent AF. Patients who are eligible for catheter ablation as well as LAA closure device implantation and are willing to participate in the study will be randomly assigned to catheter ablation or percutaneous closure of the LAA by a closure device implantation in the relation 1:1. The primary endpoint of the study is a composite endpoint at 12 months of all cause death, thrombo-embolic events, major bleeding (BARC type 3), re-hospitalisation and severe symptoms due to arrhythmias. Secondary endpoints include a composite endpoint of bleeding, a composite endpoint of thrombo-embolic events, cardio-vascular mortality, total duration of hospitalisation, sustained discontinued anticoagulation, quality of life improvement, use of Antiarrhythmic Drugs (AAD), total costs, freedom from arrhythmia and average ventricular frequency in 7-day holter ECG at 12 months.

The objective of the study is to assess the superiority of percutaneous closure of the LAA combined with rate-control to catheter ablation in patients with oligosymptomatic AF.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Atrial Fibrillation

Clinical Trial Details

NCT number	NCT01363895
Study type	Interventional
Source	Deutsches Herzzentrum Muenchen
Contact
Status	Completed
Phase	N/A
Start date	November 2010
Completion date	November 2013

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Interventional Strategies in Treatment of Atrial Fibrillation: Percutaneous Closure of the Left Atrial Appendage Versus Catheter Ablation — ISAR-AF

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms