Atrial Fibrillation Clinical Trial
— AFTXOfficial title:
NAVISTAR® THERMOCOOL® Catheter for the Radiofrequency Ablation of Symptomatic Paroxysmal Atrial Fibrillation- Treatment Use Study
Verified date | December 2013 |
Source | Biosense Webster, Inc. |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Food and Drug Administration |
Study type | Interventional |
This trial evaluates the safety and effectiveness of catheter ablation for PAF. The investigational catheter being studied is the NAVISTAR® THERMOCOOL® irrigated-tip catheter. At the time of this study, the NAVISTAR® THERMOCOOL® Catheter was FDA-approved for commercial distribution in the U.S. for treating patients with Type I atrial flutter and drug refractory monomorphic sustained ventricular tachycardia post myocardial infarction. The catheter was approved for use in Europe for endocardial ablation for treating cardiac arrhythmias.
Status | Terminated |
Enrollment | 10 |
Est. completion date | December 2009 |
Est. primary completion date | December 2009 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria: - Patients with symptomatic PAF who have had three (3) AF episodes in the six (6) months prior to enrollment, one of which must be documented. Documentation may include electrocardiogram (ECG), transtelephonic monitor (TTM), Holter monitor (HM), or telemetry strip. - Failure of at least one AAD for PAF [class I or III or AV nodal blocking agents such as beta blockers (BB) and calcium channel blockers (CCB)] as evidenced by recurrent symptomatic PAF, or intolerable side effects due to AAD. - Signed Patient Informed Consent Form. - Age 18 years or older. - Able and willing to comply with all pre-, post- and follow-up testing and requirements. Exclusion Criteria: - Atrial fibrillation secondary to electrolyte imbalance, thyroid disease, or reversible or non- cardiac cause. - Previous ablation for atrial fibrillation. - Patients on amiodarone therapy at any time during the previous six (6) months. - AF episodes that last longer than 30 days and are terminated via cardioversion. - Any valvular cardiac surgical procedure. - CABG procedure within the last 180 days (six months). - Awaiting cardiac transplantation or other cardiac surgery within the next 360 days (12 months). - Documented left atrial thrombus on imaging (e.g. TEE). - History of a documented thromboembolic event within the past one (1) year. - Diagnosed atrial myxoma. - Presence of implanted ICD. - Significant pulmonary disease, (e.g. restrictive pulmonary disease, constrictive or chronic obstructive pulmonary disease) or any other disease or malfunction of the lungs or respiratory system that produces chronic symptoms. - Significant congenital anomaly or medical problem that in the opinion of the investigator would preclude enrollment in this study. - Women who are pregnant (by history of menstrual period or pregnancy test if the history is considered unreliable). - Acute illness or active systemic infection or sepsis. - Unstable angina. - Myocardial infarction within the previous 60 days (two months). - LVEF < 40%. - History of blood clotting or bleeding abnormalities. - Contraindication to anticoagulation (i.e. heparin or warfarin). - Contraindication to CT/MRA procedure. - Life expectancy less than 360 days (12 months). - Enrollment in an investigational study evaluating another device or drug. - Uncontrolled heart failure or NYHA class III or IV heart failure. - Presence of intramural thrombus, tumor or other abnormality that precludes catheter introduction or manipulation. - Presence of a condition that precludes vascular access. |
Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label
Country | Name | City | State |
---|---|---|---|
United States | Cleveland Clinic Foundation | Cleveland | Ohio |
United States | Ohio State University Medical Center | Columbus | Ohio |
United States | Duke University Medical Center | Durham | North Carolina |
United States | University of Rochester Medical Center | Rochester | New York |
Lead Sponsor | Collaborator |
---|---|
Biosense Webster, Inc. |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Percentage of Subjects Who Exhibited no Documented Symptomatic Paroxysmal Atrial Fibrillation (PAF) Episodes From Study Day 91 Through Day 361. | A subject who exhibited no documented symptomatic PAF episodes was one who 1) had 2 or fewer repeat ablations within 90 days of the initial ablation with investigational catheter; 2) had an addition of antiarrhythmic medication which was previously ineffective for atrial fibrillation and did not exceed the previous historical maximum dosage (24 hour total dose); 3) was on atrioventricular nodal blocking agents such as beta blockers and/or calcium channel blockers and might be maintained at the current dose (ie, did not exceed previous historical maximum dosage (24 hour total dose). | From study day 91 through day 361 | No |
Primary | The Percentage of Subjects Who Experienced Incidences of Early Onset (Within 7 Days of Ablation Procedure) Catheter-related Adverse Events. | Catheter-related adverse events include death, myocardial infarction, pulmonary vein stenosis, diaphragmatic paralysis, atrio-esophageal fistula, transient ischemic attack, stroke, cerebrovascular accident, thromboembolism, pericarditis, cardiac tamponade, pericardial effusion, pneumothorax, atrial perforation, vascular access complications, pulmonary edema, hospitalization (initial and prolonged), and heart block. | within 7 days of ablation procedure | Yes |
Secondary | Percentage of Subjects Who Achieved Acute Success | Acute success is defined as the confirmation of entrance block in all targeted pulmonary veins. Acute failure is defined as subjects who have a non-investigational catheter used for ablation of any atrial fibrillation targets or subjects who undergo more than 2 repeat ablation procedures or an ablation procedure beyond day 90. | Day 91 - 361 | Yes |
Secondary | 24-hour Holter Data | 1 year | No | |
Secondary | TTM Data | 1 year | No | |
Secondary | Percentage of Subjects Who Responded to Quality of Life Assessment | SF 36 Symptom Frequency and Severity Checklist | 1 year | No |
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