This site became the new on June 19th. Learn more.
Show more Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu
Give us feedback

Empiric Quinidine for Asymptomatic Brugada Syndrome

This study is currently recruiting participants.
See Contacts and Locations
Verified January 2017 by Dr. Sami Viskin, International Registry of Asymptomatic Brugada Syndrome
Information provided by (Responsible Party):
Dr. Sami Viskin, International Registry of Asymptomatic Brugada Syndrome Identifier:
First received: November 8, 2008
Last updated: January 8, 2017
Last verified: January 2017
The purpose of this study is to determine if quinidine therapy (not guided by the results of electrophysiologic studies) will reduce the long-term risk of arrhythmic events in asymptomatic Brugada Syndrome.

Condition Intervention Phase
Arrhythmia Drug: quinidine Drug: no therapy Phase 2 Phase 3

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
Official Title: A Prospective Trial Of Empiric Quinidine Therapy For Asymptomatic Brugada Syndrome.

Resource links provided by NLM:

Further study details as provided by Dr. Sami Viskin, International Registry of Asymptomatic Brugada Syndrome:

Primary Outcome Measures:
  • Combined endpoint of all cause mortality and spontaneous life-threatening arrhythmias. [ Time Frame: Long term (>5 years) ]

Estimated Enrollment: 200
Study Start Date: December 2009
Estimated Primary Completion Date: December 2019 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Quinidine
Patients with type I Brugada electrocardiogram (either spontaneous or following a drug challenge with sodium channel blocker) who never experienced arrhythmia-related symptoms. Patients will receive quinidine therapy at the discretion of the attending physician.
Drug: quinidine
quinidine at highest tolerated dose. Expected doses are hydroquinidine 600 - 900 mg daily.
Other Names:
  • Serecor
  • Quiniduran
Active Comparator: no therapy
Patients with asymptomatic Brugada syndrome who opted to receive no therapy following the recommendation of their attending physician
Drug: quinidine
quinidine at highest tolerated dose. Expected doses are hydroquinidine 600 - 900 mg daily.
Other Names:
  • Serecor
  • Quiniduran
Drug: no therapy
No therapy; this is not a placebo-controlled trial


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Patients with Asymptomatic Brugada syndrome.

    • "Brugada syndrome" is defined as the presence of a Type-I Brugada electrocardiogram [coved ST-segment elevation ≥2 mm (0.2 mV) in V1, V2 or V3] either spontaneously (at rest, in the baseline state or during a febrile episode) or following a standard drug-challenge test (with flecainide, ajmaline, procainamide, or pilsicainide) and recorded either with standard electrode position or with the precordial electrodes placed on the second or third intercostal space. Negative T waves in the precordial leads are not required to define a Type I electrocardiogram.
    • "Asymptomatic patients" will be defined as patients without a history of cardiac arrest, a history of "arrhythmic syncope" or a history of "suspected arrhythmic syncope." Arrhythmic syncope" is a syncope occurring during documented ventricular tachyarrhythmias. "Suspected arrhythmic syncope" is syncope without documented arrhythmias believed to be caused by a tachyarrhythmia based on clinical judgment. In other words, patients with typical vagal syncope will be counted as "asymptomatic" and will be accepted to the registry whereas patients with a clinical history suggesting "syncope other than vagal syncope" will not be accepted to this Registry.
    • Genetic confirmation (identification of a disease-causing mutation) will not be required for establishing the diagnosis of Brugada syndrome but will be recorded when present.
  2. Patients with Questionable Brugada Syndrome who are asymptomatic.

    • Patients with "Questionable Brugada Syndrome" are defined as patients with type II or III electrocardiogram who have an inconclusive result during a drug challenge with a sodium channel blocker. "Asymptomatic" is defined as above.
    • Genetic testing will not be required. However, patients with "Questionable Brugada" based on electrocardiographic criteria will be defined as "Patients with Brugada Syndrome" if a disease-causing mutation is identified.

Exclusion Criteria:

  1. A history of cardiac arrest, "arrhythmic syncope" or "suspected arrhythmic syncope" (as defined above).
  2. Evidence of organic heart disease. The evaluation considered mandatory for excluding heart disease will consist of electrocardiogram, echocardiogram and exercise stress testing. Additional tests will be performed only if clinically indicated.
  3. Evidence of non-cardiac disease likely to affect 5-year survival.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00789165

Contact: Sami Viskin, M.D. 97236973311

United States, Pennsylvania
Lankenau Institute for Medical Research Not yet recruiting
Wynnewood, Pennsylvania, United States, 19096
Contact: Charles Antzelevitch, PhD, FACC, FAHA, FHRS    (315) 725-1390   
Principal Investigator: Charles Antzelevitch, PhD, FACC, FAHA, FHRS         
University Medical Centre Mannheim Recruiting
Mannheim, Germany
Contact: Boris Rudic, MD   
Principal Investigator: Boris Rudic, MD         
Tel Aviv Medical Center Recruiting
Tel Aviv, Israel, 64239
Contact: Sami Viskin, M.D.    972524266859   
Sub-Investigator: Bernard Belhassen, M.D.         
University of Pavia and IRCCS Fondazione Policlinico San Matteo Recruiting
Pavia, Italy
Contact: Lia Crotti, MD PhD   
Sub-Investigator: Lia Crotti, MD PhD         
Principal Investigator: Peter J Schwartz, MD         
National Cardiovascular Center Recruiting
Osaka, Japan
Contact: Wataru Shimizu, M.D.   
Principal Investigator: Wataru Shimizu, M.D.         
Academic Medical Centre Recruiting
Amsterdam, Netherlands
Contact: Arthur AM Wilde, M.D.   
Sub-Investigator: Hanno L. Tan, M.D. PhD         
Principal Investigator: Arthur AM Wilde, MD PhD         
Sponsors and Collaborators
International Registry of Asymptomatic Brugada Syndrome
Principal Investigator: Sami Viskin, M.D. Tel Aviv Medical Center
  More Information

Responsible Party: Dr. Sami Viskin, International RABS director, International Registry of Asymptomatic Brugada Syndrome Identifier: NCT00789165     History of Changes
Other Study ID Numbers: 1297368
No grants at this point
Study First Received: November 8, 2008
Last Updated: January 8, 2017

Keywords provided by Dr. Sami Viskin, International Registry of Asymptomatic Brugada Syndrome:
Brugada syndrome
Asymptomatic Brugada Syndrome

Additional relevant MeSH terms:
Brugada Syndrome
Pathologic Processes
Arrhythmias, Cardiac
Heart Diseases
Cardiovascular Diseases
Genetic Diseases, Inborn
Quinidine gluconate
Adrenergic alpha-Antagonists
Adrenergic Antagonists
Adrenergic Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Physiological Effects of Drugs
Anti-Arrhythmia Agents
Antiprotozoal Agents
Antiparasitic Agents
Anti-Infective Agents
Enzyme Inhibitors
Muscarinic Antagonists
Cholinergic Antagonists
Cholinergic Agents
Voltage-Gated Sodium Channel Blockers
Sodium Channel Blockers
Membrane Transport Modulators
Cytochrome P-450 CYP2D6 Inhibitors
Cytochrome P-450 Enzyme Inhibitors processed this record on September 20, 2017