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Conditions: Ventricular Tachycardia
Interventions: Radiofrequency Catheter Ablation (RFCA); Procedure
Lead sponsor: Texas Cardiac Arrhythmia Research Foundation; Other
Eligibility: 18 Years to 75 Years
Enrollment: 120 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2010 – 2014
U.S. locations: 1
States / cities: Austin, Texas

Conditions: Atrial Flutter, Ventricular Tachycardia
Interventions: Amigo catheter robot; Device
Lead sponsor: Catheter Robotics, Inc.; Industry
Eligibility: 18 Years and older
Enrollment: 181 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2010 – 2011
U.S. locations: 11
States / cities: Newport Beach, California • Redwood City, California • Chicago, Illinois + 8 more

Conditions: Bradycardia, Sinus Node Dysfunction
Interventions: INGEVITY lead; Device
Lead sponsor: Boston Scientific Corporation; Industry
Eligibility: 18 Years and older
Enrollment: 1,060 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2012 – 2019
U.S. locations: 44
States / cities: Gilbert, Arizona • Glendale, Arizona • Tucson, Arizona + 39 more

Conditions: Arrhythmia
Interventions: Not listed
Lead sponsor: University of California, San Francisco; Other
Eligibility: 18 Years and older
Enrollment: 125 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2010 – 2013
U.S. locations: 1
States / cities: San Francisco, California

Conditions: Tachycardia, Ventricular
Interventions: Bispectral index monitoring, Ramsey Sedation Scale; Device · Other
Lead sponsor: Baystate Medical Center; Other
Eligibility: 21 Years to 65 Years
Enrollment: 20 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2007 – 2013
U.S. locations: 1
States / cities: Springfield, Massachusetts

Conditions: Hyperkalemia
Interventions: Sodium Zirconium Cyclosilicate (SZC), SZC Placebo; Drug
Lead sponsor: AstraZeneca; Industry
Eligibility: 18 Years to 130 Years
Enrollment: 2,690 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2021 – 2024
U.S. locations: 57
States / cities: Huntsville, Alabama • Mesa, Arizona • Bakersfield, California + 47 more

Conditions: Ventricular Tachycardia
Interventions: Not listed
Lead sponsor: The Cleveland Clinic; Other
Eligibility: 21 Years and older
Enrollment: 4 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2006 – 2008
U.S. locations: 1
States / cities: Cleveland, Ohio

Conditions: Fatigue, Tachycardia
Interventions: Monster Energy Drink, Coffee; Dietary Supplement
Lead sponsor: University of Texas at Austin; Other
Eligibility: 18 Years to 35 Years
Enrollment: 30 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2014 – 2015
U.S. locations: 1
States / cities: Austin, Texas

Conditions: Tachycardia, Atrioventricular Nodal Reentry
Interventions: Cardiac Invasive Electrophysiological Study; Procedure
Lead sponsor: University of Oklahoma; Other
Eligibility: 16 Years to 80 Years
Enrollment: 46 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2004 – 2021
U.S. locations: 1
States / cities: Oklahoma City, Oklahoma

Conditions: Cardiac Arrest, Sudden Cardiac Death, Ventricular Fibrillation, Tachycardia, Ventricular
Interventions: Epinephrine, Metoprolol; Drug
Lead sponsor: David Haines, MD; Other
Eligibility: 18 Years and older
Enrollment: 7 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2007 – 2012
U.S. locations: 1
States / cities: Royal Oak, Michigan

Conditions: Ventricular Tachycardia, Heart Diseases
Interventions: High power ablation, Standard ablation power; Procedure
Lead sponsor: Federal Research Clinical Center of Federal Medical & Biological Agency, Russia; Government
Eligibility: 18 Years and older
Enrollment: 119 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2020 – 2023
U.S. locations: 1
States / cities: Austin, Texas

Conditions: Ventricular Tachycardia
Interventions: Unpinning Termination therapy; Device
Lead sponsor: Cardialen, Inc.; Industry
Eligibility: 18 Years to 80 Years
Enrollment: 6 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2019 – 2022
U.S. locations: 7
States / cities: Sacramento, California • Des Moines, Iowa • Minneapolis, Minnesota + 3 more

Conditions: Syncope, Heart Block, Conduction Disorder of the Heart
Interventions: pacemaker, implantable loop recorder; Procedure
Lead sponsor: Canadian Institutes of Health Research (CIHR); Government
Eligibility: Not listed
Enrollment: 120 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2011 – 2017
U.S. locations: 1
States / cities: Nashville, Tennessee

Conditions: Postural Orthostatic Tachycardia Syndrome
Interventions: External automated abdominal binder; Device
Lead sponsor: Vanderbilt University; Other
Eligibility: 18 Years to 60 Years
Enrollment: 13 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2012 – 2017
U.S. locations: 1
States / cities: Nashville, Tennessee

Conditions: Ventricular Tachycardia (VT)
Interventions: Sphere-9 Catheter with the Affera Mapping and Ablation System; Device
Lead sponsor: Medtronic Cardiac Ablation Solutions; Industry
Eligibility: 18 Years to 85 Years
Enrollment: 60 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2025 – 2027
U.S. locations: 6
States / cities: Boston, Massachusetts • New York, New York • Cleveland, Ohio + 3 more

Conditions: Defibrillators, Implantable, Myocardial Infarction, Tachycardias, Ventricular
Interventions: ICD; Device
Lead sponsor: Duke University; Other
Eligibility: 18 Years and older
Enrollment: 2,047 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2007 – 2008
U.S. locations: 1
States / cities: Durham, North Carolina

Conditions: Cardiovascular Diseases
Interventions: Energy drink, Placebo drink; Other
Lead sponsor: University of the Pacific; Other
Eligibility: 18 Years to 40 Years
Enrollment: 20 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2019
U.S. locations: 1
States / cities: Stockton, California

Conditions: Alzheimer's Disease
Interventions: Rosi XR, Placebo, Moxifloxacin; Drug · Other
Lead sponsor: GlaxoSmithKline; Industry
Eligibility: 18 Years to 45 Years
Healthy volunteers: Accepts healthy volunteers
Timeline: 2009
U.S. locations: 1
States / cities: Overland Park, Kansas

Conditions: Ventricular Tachycardia
Interventions: Sphere-9 Catheter with the Affera Mapping and Ablation System; Device
Lead sponsor: Medtronic Cardiac Ablation Solutions; Industry
Eligibility: 18 Years to 85 Years
Enrollment: 260 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2026 – 2028
U.S. locations: 5
States / cities: Indianapolis, Indiana • Manhasset, New York • Winston-Salem, North Carolina + 2 more

Conditions: Torsades de Pointes
Interventions: VI-0521; Drug
Lead sponsor: VIVUS LLC; Industry
Eligibility: 19 Years to 50 Years
Enrollment: 112 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2009
U.S. locations: 1
States / cities: Phoenix, Arizona

Conditions: Ventricular Arrhythmia
Interventions: Eleclazine, Placebo to match eleclazine; Drug
Lead sponsor: Gilead Sciences; Industry
Eligibility: 18 Years to 80 Years
Enrollment: 313 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2014 – 2016
U.S. locations: 37
States / cities: Mesa, Arizona • Long Beach, California • Los Angeles, California + 32 more

Conditions: Atrial Fibrillation, Atrial Flutter, Heart Block, Pulmonary Embolism and Thrombosis, Mitral Valve Repair, Sinus Node Dysfunction, Bradycardia, Brady-tachy Syndrome
Interventions: Perclose ProGlide Suture-Mediated Closure System (SMC) - LARGE-BORE PROCEDURES, Figure 8 Suture - LARGE-BORE PROCEDURES; Device · Other
Lead sponsor: Wake Forest University Health Sciences; Other
Eligibility: 18 Years and older
Enrollment: 107 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2021 – 2023
U.S. locations: 1
States / cities: Milwaukee, Wisconsin

Conditions: Sensorineural Hearing Loss, Long QT Syndrome
Interventions: Not listed
Lead sponsor: Pediatrix; Other
Eligibility: 1 Day to 90 Days
Enrollment: 600 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2014 – 2020
U.S. locations: 12
States / cities: Anchorage, Alaska • Phoenix, Arizona • Waterford, Connecticut + 6 more

Conditions: Tachycardia, Ventricular, Cardiac Sudden Death
Interventions: Not listed
Lead sponsor: Vicor Technologies, Inc.; Industry
Eligibility: 18 Years and older
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2006 – 2009
U.S. locations: 19
States / cities: Los Angeles, California • San Ramon, California • Walnut Creek, California + 14 more

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Ablation of Clinical Ventricular Tachycardia Versus Addition of Substrate Ablation on the Long Term Success Rate of VT Ablation

Clinical Study to Evaluate the Catheter Robotics Amigo for Performing Right-Sided Electrophysiology Mapping Studies

Safety and Performance Study of the INGEVITY Lead

The Effect of General Anesthesia on the Risk for Arrhythmia

Bispectral Index Monitoring During Testing in the Electrophysiology Lab

Effect of Sodium Zirconium Cyclosilicate on Arrythmia-related Cardiovascular Outcomes in Participants on Chronic Hemodialysis With Recurrent Hyperkalemia (DIALIZE-Outcomes)

The Use of CT to Identify Damaged Heart Muscle in Patients Undergoing Ventricular Tachycardia Ablation.

Effect of Caffeine on Heart Function

AV Nodal Reentrant Tachycardia Study

Treatment of Ventricular Tachyarrhythmias Refractory To Shock With Beta Blockers: The SHOCK and BLOCK Trial

Application of High Power Radio Frequency Energy in the Ventricular Tachycardia Treatment

Unpinning Termination Therapy for VT (US)

Syncope: Pacing or Recording in the Later Years

High Sodium Diet and External Abdominal Compression in POTS

Safety and Performance Assessment of the Sphere-9™ Catheter and Affera™ Ablation System for the Treatment of Ventricular Tachycardia (Sphere-9 VT EFS)

Risk of Life-threatening Heart Rhythm Disturbances in Siblings

The Effect of Energy Drink on Cardiovascular Variables: A Randomized Controlled Trial

QTc Study of Rosi XR in Healthy Volunteers

Safety and Effectiveness of the Sphere-9™ Catheter and Affera™ Ablation System for the Treatment of Ventricular Tachycardia (Sphere VT)

A Study to Evaluate How VI-0521 Affect Cardiac Repolarization in Healthy Male and Female Volunteers

Evaluating Ventricular Arrhythmia in Subjects With Implantable Cardioverter Defibrillator or Cardiac Resynchronization Therapy-Defibrillator

Suture Closure AFtEr VEIN Access for Cardiac Procedures (SAFE-VEIN) Trial

Determine the Incidence of Long QT Amongst a Large Cohort of Subjects Diagnosed With Unilateral or Bilateral Sensorineural Hearing Loss.

The Ability Of The PD2i Cardiac Analyzer To Predict Risk Of Ventricular Tachyarrhythmic Events