Antiarrhythmic Therapy Versus Catheter Ablation for Atrial Fibrillation in Hypertrophic Cardiomyopathy

NCT ID: NCT00821353

Last Updated: 2013-02-05

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

90 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-01-31

Study Completion Date

2012-06-30

Brief Summary

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Paroxysmal or chronic atrial fibrillation (AF) develops in about 20- 25% of adult patients with hypertrophic cardiomyopathy (HCM) and represents an important complication in the clinical course of the disease, with adverse long-term consequences on functional status and outcome.

Therefore, aggressive therapeutic strategies are indicated to restore and maintain sinus rhythm (SR) in patients with HCM. Nevertheless, pharmacologic prevention of AF recurrence is challenging because of the limited long-term efficacy and potentially hazardous side effects of available treatment options. Currently radiofrequency catheter ablation (RFCA) of AF is successfully used in clinical practice. However, comparison of the efficacy and safety of these two therapeutic options has not been done up till now in randomized manner in this group of patients.

Thus, the aim of the present study is to compare the efficacy and safety of RFCA vs. antiarrhythmic drug therapy in patients with HCM and AF.

Detailed Description

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Conditions

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Atrial Fibrillation Hypertrophic Cardiomyopathy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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RFCA

Group Type ACTIVE_COMPARATOR

RF catheter ablation

Intervention Type PROCEDURE

RF catheter ablation

Drug

Group Type ACTIVE_COMPARATOR

Antiarrhythmic drugs

Intervention Type DRUG

One of AA drugs (preferably Amiodarone) and cardioversion in cases of chronic AF

Interventions

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RF catheter ablation

RF catheter ablation

Intervention Type PROCEDURE

Antiarrhythmic drugs

One of AA drugs (preferably Amiodarone) and cardioversion in cases of chronic AF

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Patients with hypertrophic cardiomyopathy and paroxysmal or chronic atrial fibrillation

Exclusion Criteria

* Severe hear failure (NYHA IV)
* Left ventricular ejection fraction \<0.30
* Left atrial diameter \>65 mm
* Age \> 70 years
* Contraindication to anticoagulation with warfarin
* Presence of a mechanical prosthetic valve
* Presence of left atrial thrombus on TEE or CT
* Woman currently pregnant
* Renal failure (GFR \< 30 ml/min)
* Hepatic failure
* Untreated hypothyroidism or hyperthyroidism
* LVOT gradient \> 50 mmHg
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Institute of Cardiology, Warsaw, Poland

OTHER

Sponsor Role lead

Responsible Party

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Institute of Cardiology, Warsaw, Poland

Principal Investigators

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Pawel Derejko, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

National Institute of Cardiology, Warsaw, Poland

Lidia Chojnowska, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

National Institute of Cardiology, Warsaw, Poland

Lukasz Szumowski, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

National Institute of Cardiology, Warsaw, Poland

Franciszek Walczak, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

National Institute of Cardiology, Warsaw, Poland

Locations

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Institute of Cardiology

Warsaw, , Poland

Site Status

Countries

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Poland

Other Identifiers

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1.7/IV/08

Identifier Type: -

Identifier Source: secondary_id

N N402 194635

Identifier Type: -

Identifier Source: org_study_id

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