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Gerrit Frommeyer, Dirk Puckhaber, Christian Ellermann, Dirk G Dechering, Simon Kochhäuser, Patrick Leitz, Florian Reinke, Lars Eckardt
BACKGROUND: A post hoc analysis of the PALLAS trial suggested possible interactions of dronedarone and digitalis glycosides. The aim of the present study was to compare the effects dronedarone or amiodarone in combination with digitalis glycosides. METHODS AND RESULTS: Eleven female rabbits underwent chronic oral treatment with amiodarone (50mg/kg/d for 6weeks). Ten rabbits were treated with dronedarone (50mg/kg/d for 6weeks). Ten rabbits were used as controls. Hearts were isolated and Langendorff-perfused...
November 7, 2016: International Journal of Cardiology
Alka Bali, Renu Chadha, Gulshan Bansal
The present work relates to the development and validation of reversed-phase HPLC-UV-photodiode array methods for the estimation of two drugs in blood serum: dronedarone hydrochloride (DDN), a class III antiarrhythmic drug, and duloxetine hydrochloride (DLX), an antidepressant. Chromatographic analysis of DLX was carried out on a Nucleodur C18 column (250 × 4.6 mm, 5 μm) using ammonium acetate buffer (32 mM, pH 5.5) and acetonitrile (40 + 60, v/v; flow rate of 1.0 mL/min; detection wavelength of 290 nm) as the mobile phase...
October 18, 2016: Journal of AOAC International
C Michael White, Elaine Nguyen
OBJECTIVE: To review the limitations of current antiarrhythmic drugs in atrial fibrillation (AF) and discuss the rationale and clinical trials supporting the use of ranolazine in AF. DATA SOURCES: MEDLINE was searched from 1980 to September 2016 using the terms ranolazine, atrial fibrillation, coronary artery bypass grafting, and valve surgery STUDY SELECTION AND DATA EXTRACTION: English-language studies and reviews assessing antiarrhythmic drugs, including ranolazine, were incorporated...
October 6, 2016: Annals of Pharmacotherapy
Igor Diemberger, Giulia Massaro, Maria Letizia Bacchi Reggiani, Stefano Lorenzetti, Mauro Biffi, Matteo Ziacchi, Cristian Martignani, Giuseppe Boriani
Dronedarone was found to have divergent safety profiles in randomized controlled trials (RCT) in term of cardiac death and overall mortality. We decided to evaluate all available evidence on the cardiovascular safety of this drug. A systematic search was made of the MEDLINE and the Cochrane Central Register of Controlled Trials from January 2003 through April 2016 for RCT comparing dronedarone to placebo/active control, to provide the most accurate estimate of the effects of this agent and observational cohort studies (OBS) reporting clinical outcomes in patients treated with dronedarone, according to current guidelines, to obtain a real-life comparator for the findings summarized by RTC analysis...
October 6, 2016: Current Pharmaceutical Design
Carlos Escobar, Martín Arceluz, Rosa Montes de Oca, Ricardo Mori, José Luis López-Sendón, José Luis Merino
No abstract text is available yet for this article.
September 28, 2016: Revista Española de Cardiología
Bernhard M Kaess, Joachim R Ehrlich
No abstract text is available yet for this article.
April 2016: European Heart Journal. Cardiovascular Pharmacotherapy
Armando Lagrutta, Haoyu Zeng, John Imredy, Bharathi Balasubramanian, Spencer Dech, Edward Lis, Jixin Wang, Jin Zhai, Joseph DeGeorge, Frederick Sannajust
Several clinical cases of severe bradyarrhythmias have been reported upon co-administration of the Hepatitis-C NS5B Nucleotide Polymerase Inhibitor (HCV-NI) direct-acting antiviral agent, sofosbuvir (SOF), and the Class-III anti-arrhythmic amiodarone (AMIO). We model the cardiac drug-drug interaction (DDI) between AMIO and SOF, and between AMIO and a closely-related SOF analog, MNI-1 (Merck Nucleotide Inhibitor #1), in functional assays of human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs), to provide mechanistic insights into recently reported clinical cases...
October 1, 2016: Toxicology and Applied Pharmacology
Susanne Löbe, Silke John, Jelena Kornej, Gerhard Hindricks, Andreas Bollmann, Daniela Husser
No abstract text is available yet for this article.
November 1, 2016: International Journal of Cardiology
Janet Lock, Raj K Patel, Carl Brookes, Jignesh P Patel
No abstract text is available yet for this article.
December 2016: Therapeutic Drug Monitoring
Takashi Okitsu, Mizuki Ogasahara, Akimori Wada
We have developed a convergent synthesis of dronedarone, an antiarrhythmic agent. The key steps of the process are the construction of a benzofuran skeleton by iodocyclization and the carbonylative Suzuki-Miyaura cross-coupling for biaryl ketone formation. This synthetic route required only eight steps from 2-amino-4-nitrophenol in 23% overall yield.
2016: Chemical & Pharmaceutical Bulletin
Jacques Rizkallah, Vikas Kuriachan, L Brent Mitchell
BACKGROUND: Dronedarone is a benzofuran derivative resembling amiodarone that was intended to reduce the iodine-associated tissue deposition and organ toxicity seen with the latter. The utility of dronedarone for patients with ventricular arrhythmias has not been thoroughly evaluated. We present our experience with its use to treat refractory ventricular tachycardia storm and review the literature. CASE PRESENTATION: An 85 year-old gentleman with multiple medical comorbidities including ischemic and non-ischemic cardiomyopathy with severe biventricular systolic dysfunction presented with ventricular tachycardia storm...
2016: BMC Research Notes
Carl Hayward, Hitesh C Patel, Ketna Patel, Carlo Di Mario, Alexander R Lyon, Syed Y Ahsan, Edward Rowland
AIMS: An important decision in the management of patients with atrial fibrillation is whether to adopt a rate or rhythm control strategy. Options for the latter include oral membrane-active anti-arrhythmic drugs (AADs) or catheter ablation. Recent prescription trends may have been affected by the introduction of dronedarone and an increasing number of reports suggesting increased mortality in those taking AADs. We describe the trend in oral AAD prescriptions in England in the period 1998-2014...
April 2016: European Heart Journal. Cardiovascular Pharmacotherapy
Mohammad Shenasa, Hamid Assadi, Shahriar Heidary, Hossein Shenasa
Ranolazine is currently approved as an antianginal agent in patients with chronic angina (class IIA). Ranolazine exhibits antiarrhythmic effects that are related to its multichannel blocking effect, predominantly inhibition of late sodium (late INa) current and the rapid potassium rectifier current (IKr), as well as ICa, late ICa, and INa-Ca. It also suppresses the early and delayed after depolarizations. Ranolazine is effective in the suppression of atrial and ventricular arrhythmias (off-label use) without significant proarrhythmic effect...
June 2016: Cardiac Electrophysiology Clinics
Rafik Tadros, Stanley Nattel, Jason G Andrade
Dronedarone is the newest antiarrhythmic drug approved for the maintenance of sinus rhythm in patients with nonpermanent atrial fibrillation (AF). It is a multi-channel blocker with diverse electrophysiologic properties. Dronedarone decreases the incidence of AF recurrence and the ventricular rate during recurrence. Dronedarone decreases rates of cardiovascular hospitalizations in patients with paroxysmal and persistent AF. Dronedarone increases mortality in patients with permanent AF and those with moderate-severe heart failure, and should thus be avoided in these populations...
June 2016: Cardiac Electrophysiology Clinics
Li-Qin Jiang, Shan-Jiang Chen, Jian-Jiang Xu, Zhang Ran, Wang Ying, Sheng-Gang Zhao
BACKGROUND/AIMS: Amiodarone, a thyroid hormone-like molecule, can induce dyslipidemia and thyroid dysfunction. However, the effects of dronedarone on lipid metabolism and of both dronedarone and amiodarone on thyroid function and lipid metabolism remain unknown. METHODS: Fifty male Sprague-Dawley rats were randomly divided into 5 groups (10 in each group): normal control (NC), amiodarone-treated (AMT), dronedarone-treated (DRT), rats treated with amiodarone combined with polyene phosphatidylcholine (AC), and rats treated with dronedarone combined with polyene phosphatidylcholine (DC)...
2016: Cellular Physiology and Biochemistry
Yousef A Bin Jardan, Dion R Brocks
The objectives of the current study were to characterize the pharmacokinetic profile of dronedarone in the rat, and to examine the effect of hyperlipidemia on its pharmacokinetics. Single doses of dronedarone were administered to rats intravenously (4 mg/kg), orally (55 mg/kg) and intraperitoneally (65 mg/kg). To induce hyperlipidemia, some of the rats were administered intraperitoneal doses of poloxamer 407 before giving an oral dose of dronedarone. After intravenous doses of 4 mg/kg dronedarone, plasma clearance and volume of distribution at steady-state were 25...
September 2016: Biopharmaceutics & Drug Disposition
Mate Vamos, Stefan H Hohnloser
This article provides a contemporary review of the current role of amiodarone and dronedarone in patients with atrial fibrillation who need to undergo rhythm control therapy for relief of symptoms. Amiodarone is the most widely prescribed antiarrhythmic drug for this indication. Recent findings show that its use is not associated with increased mortality even in patients with advanced structural heart disease. However, its extracardiac side effect profile may limit its widespread use. Dronedarone appears to be a useful drug in patients with paroxysmal or persistent atrial fibrillation...
October 2016: Trends in Cardiovascular Medicine
Nico Hartmann, Fleur E Mason, Inga Braun, Steffen Pabel, Niels Voigt, Hanna Schotola, Thomas H Fischer, Dobromir Dobrev, Bernhard C Danner, André Renner, Jan Gummert, Luiz Belardinelli, Norbert Frey, Lars S Maier, Gerd Hasenfuss, Samuel Sossalla
INTRODUCTION: Pharmacological rhythm control of atrial fibrillation (AF) in patients with structural heart disease is limited. Ranolazine in combination with low dose dronedarone remarkably reduced AF-burden in the phase II HARMONY trial. We thus aimed to investigate the possible mechanisms underlying these results. METHODS AND RESULTS: Patch clamp experiments revealed that ranolazine (5μM), low-dose dronedarone (0.3μM), and the combination significantly prolonged action potential duration (APD90) in atrial myocytes from patients in sinus rhythm (prolongation by 23...
May 2016: Journal of Molecular and Cellular Cardiology
Aneesh Karkhanis, Hui Yuan Lam, Gopalakrishnan Venkatesan, Siew Kwan Koh, Christina Li Lin Chai, Lei Zhou, Yanjun Hong, Pipin Kojodjojo, Eric Chun Yong Chan
Dronedarone, a multiple ion channel blocker is prescribed for the treatment of paroxysmal and persistent atrial fibrillation. While dronedarone does not precipitate toxicities like its predecessor amiodarone, its clinical use has been associated with idiosyncratic hepatic and cardiac adverse effects and drug-drug interactions (DDIs). As dronedarone is a potent mechanism-based inactivator of CYP3A4 and CYP3A5, a question arose if it exerts a similar inhibitory effect on CYP2J2, a prominent cardiac CYP450 enzyme...
May 1, 2016: Biochemical Pharmacology
Nakkawee Saengklub, Brad Youngblood, Carlos Del Rio, Suwanakiet Sawangkoon, Robert L Hamlin, Anusak Kijtawornrat
Dronedarone is a multichannel blocking antiarrhythmic drug that has been used for management of atrial fibrillation in humans, but the data in veterinary medicine are inadequate. The objective of this study was to determine the short-term effects of oral dronedarone on cardiac inotropy and lusitropy, blood pressure and electrocardiogram (ECG) in healthy dogs. A total of 6 beagle dogs were instrumented with telemetry units and sono-micrometry crystals to obtain left ventricular pressure-volume relationship, mean blood pressure (MBP) and ECG...
July 1, 2016: Journal of Veterinary Medical Science
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