Hybrid ablation procedure for inappropriate sinus tachycardia
Official title: Hybrid Epicardial and Endocardial Sinus Node Sparing Ablation Therapy for Inappropriate Sinus Tachycardia
Run by AtriCure, Inc. · NCT05280093 · Data updated 2026-05-14
This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.
This study is testing a new procedure to see if it can help younger people with inappropriate sinus tachycardia who haven't found relief from medications.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 75 Years |
| Sex | All |
| Enrollment | 142 (estimated) |
| Sponsor | AtriCure, Inc. Industry-sponsored |
| Locations | 26 sites (Loma Linda, California and 25 other locations) |
| Trial ID | NCT05280093 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults aged 18 to 75 with a confirmed diagnosis of IST who have not responded to or cannot tolerate standard drug therapies.
✕Probably not a fit
Patients with existing cardiac devices, significant heart failure, or other specified cardiac conditions may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial evaluates the safety and effectiveness of a hybrid sinus node sparing ablation procedure for patients suffering from inappropriate sinus tachycardia (IST) who are intolerant or refractory to drug treatments. The study aims to provide a systematic clinical approach to a condition that significantly impacts the quality of life of otherwise healthy younger individuals. Participants will undergo the AtriCure ISOLATOR Synergy Surgical Ablation System intervention to assess its efficacy in alleviating symptoms associated with IST.
Why it matters
Potential benefit: If successful, this procedure could offer a new treatment option for patients with drug-resistant inappropriate sinus tachycardia, improving their quality of life.
How similar studies have gone: While there is limited systematic clinical evidence for IST treatments, similar ablation approaches have shown promise in other tachycardia conditions, suggesting potential for success in this novel application.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Age ≥ 18 years and ≤ 75 years at time of enrollment consent 2. Subject has a diagnosis of IST 3. Documentation of refractoriness (intolerance or failure) of a drug (e.g., rate control drugs such as beta-blockers/calcium channel blockers, ivabradine), and/or AADs 4. Subject is willing and able to provide written informed consent Exclusion Criteria: 1. Subjects on whom cardiac surgery or single lung ventilation cannot be performed 2. Subjects with indication for or existing ICDs/Pacemakers 3. Presence of channelopathies 4. Previous cardio-thoracic surgery 5. Left Ventricular Ejection Fraction (LVEF) \< 50% 6. Body Mass Index (BMI) ≥ 35 7. Presence of supraventricular or ventricular tachycardia 8. Presence of Postural Orthostatic Sinus Tachycardia (POTS) 9. Presence of congenital heart disease 10. History suggestive of secondary cause of tachycardia such as pheochromocytoma, anemia, thyrotoxicosis, chronic fever of unknown origin, COPD, long-term bronchodilators use, severe asthma or carcinoid syndrome 11. Subjects who have had a previous catheter ablation in the right atrium for IST or other disorders 12. Life expectancy \< 24 months 13. Pregnant or planning to become pregnant during trial 14. Subjects with substance abuse 15. Subjects with previous weight loss surgery 16. Subject is unwilling and/or unable to return for scheduled follow-up visits 17. Current participation in another clinical investigation of a medical device or a drug, or recent participation in such a trial that may interfere with trial results 18. Not competent to legally represent him or herself (e.g., requires a guardian or caretaker as a legal representative) and; 19. Presence of other anatomic or comorbid conditions, or other medical, social, or psychological conditions that, in the investigator's opinion, could limit the subject's ability to participate in the clinical investigation or to comply with follow-up requirements, or impact the scientific soundness of the clinical investigation results
Where it's running
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Loma Linda University Health
Loma Linda, California, United States Recruiting -
Sequoia Hospital
Redwood City, California, United States Recruiting -
Stanford University
Redwood City, California, United States Recruiting -
Saint Vincent's Medical Center
Bridgeport, Connecticut, United States Recruiting -
Medstar Washington Hospital Center
Washington, District of Columbia, United States Recruiting -
University of Florida
Gainesville, Florida, United States Recruiting
Show 20 more locations
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Sarasota Memorial Hospital
Sarasota, Florida, United States Recruiting -
St. Joseph's Hospital / Baycare Health System
Tampa, Florida, United States Recruiting -
Memorial Health University Medical Center
Savannah, Georgia, United States Recruiting -
Kansas City Cardiac Arrhythmia Research LLC
Overland Park, Kansas, United States Recruiting -
Mayo Clinic
Rochester, Minnesota, United States Recruiting -
Wake Forest University Health Sciences
Winston-Salem, North Carolina, United States Recruiting -
TriHealth, Inc.
Cincinnati, Ohio, United States Recruiting -
The Christ Hospital
Cincinnati, Ohio, United States Recruiting -
Texas Cardiac Arrhythmia Research Foundation
Austin, Texas, United States Recruiting -
Intermountain Healthcare
Salt Lake City, Utah, United States Recruiting -
Virginia Commonwealth University
Richmond, Virginia, United States Recruiting -
Swedish Medical Center
Seattle, Washington, United States Recruiting -
UZ Brussels
Brussels, Belgium Recruiting -
San Raffaele Hospital
Milan, Italy Recruiting -
Amsterdam University Medical Center
Amsterdam, Netherlands Recruiting -
Maastricht University Medical Center
Maastricht, Netherlands Recruiting -
Central Clinic Hospital
Warsaw, Poland Recruiting -
Northern General Hospital
Sheffield, United Kingdom Recruiting -
Baptist Health
Miami, Florida, United States Withdrawn -
Saint Alphonsus Regional Medical Center
Boise, Idaho, United States Withdrawn
Study contacts
- Principal investigator: Dhanunjaya Lakkireddy, MD — Kansas City Heart Rhythm Institute
- Study coordinator: Joseph Derr
- Email: jderr@atricure.com
- Phone: 1 (866) 349-2342
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Registry for Inappropriate Sinus Tachycardia and Postural Tachycardia Syndrome treatments
This study is collecting information on the safety and effectiveness of AtriCure devices used to treat people with Inappropriate Sinus Tachycardia or Postural Tachycardia Syndrome.
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Preventing atrial fibrillation with surgical ablation and left atrial appendage clipping during heart surgery
This trial tests whether adding surgical ablation and clipping of the left atrial appendage during routine open-heart surgery can prevent postoperative and later atrial fibrillation in older patients at higher stroke risk.
-
Tracking nerve-freezing during limb amputation to learn about post-operative and phantom limb pain
This registry will track how freezing nerves (cryoablation) is used during limb amputations to see if it affects post-operative and phantom limb pain in adults who have or will have an amputation.
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Registry for tracking results of heart ablation procedures
This study is tracking how well AtriCure devices work and their safety for patients who have had heart ablation procedures.
-
Registry tracking outcomes of cryoanalgesia for post-operative pain management
This study is tracking how well a new pain management technique using cryoablation of nerve blocks works for patients after surgery.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.