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Published on: February 28, 2012
Dronedarone for atrial fibrillation have we expanded the antiarrhythmic armamentarium?
David Singh1, Eugenio Cingolani, George A Diamond
1Division of Cardiology, Cedars-Sinai Medical Center, and the David Geffen School of Medicine, University of California, Los Angeles, California 90048 , USA.
Insights
Dronedarone effectively reduces cardiovascular hospitalizations in atrial fibrillation patients, as shown in the ATHENA trial. However, its overall impact requires careful consideration of mixed clinical trial results.
Area of Science:
- Cardiology
- Pharmacology
- Clinical Trials
Background:
- Dronedarone is a novel antiarrhythmic drug approved for atrial fibrillation/flutter.
- Its approval stemmed from the ATHENA trial, showing reduced cardiovascular hospitalizations.
Purpose of the Study:
- To review evidence on dronedarone's efficacy and safety.
- To provide clinical recommendations for its use in atrial fibrillation management.
Main Methods:
- Systematic review of clinical trials evaluating dronedarone.
- Analysis of the ATHENA trial data and other relevant studies.
Main Results:
- The ATHENA trial demonstrated a 24% reduction in cardiovascular hospitalization and all-cause mortality.
- Other studies show mixed results regarding dronedarone's impact on cardiovascular endpoints.
Conclusions:
- Dronedarone is effective in select atrial fibrillation patients.
- It is recommended as a second- or third-line treatment option.
Abstract:
Dronedarone is a new antiarrhythmic agent that was recently approved for the prevention of cardiovascular hospitalization driven by atrial fibrillation/flutter. Its approval was based largely on the results of the ATHENA (A Placebo-Controlled, Double-Blind, Parallel Arm Trial to Assess the Efficacy of Dronedarone 400 mg bid for the Prevention of Cardiovascular Hospitalization or Death From Any Cause in Patients With Atrial Fibrillation/Atrial Flutter) trial, which demonstrated a significant 24% reduction in the combined end point of all-cause mortality and cardiovascular hospitalization, primarily driven by the latter. However, several other clinical trials have evaluated the impact of dronedarone on various cardiovascular end points and yielded mixed results. In this article, we summarize the available evidence concerning dronedarone, and offer practical recommendations to health care providers regarding its use in the treatment of atrial fibrillation. We conclude that the available data support the use of dronedarone in select patient populations as a second- or third-line agent.
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