NCT05280093

Brief Summary

Inappropriate Sinus Tachycardia (IST) is a prevalent and debilitating condition in otherwise healthy younger patients, resulting in significant loss of quality of life, lacking effective treatment options or systematic clinical evidence to support a therapy. The primary objective of this clinical trial is to evaluate the safety and effectiveness of a hybrid sinus node sparing ablation procedure for the treatment of symptomatic drug refractory or drug intolerant IST.

Trial Health

82
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
142

participants targeted

Target at P50-P75 for not_applicable

Timeline
21mo left

Started May 2022

Longer than P75 for not_applicable

Geographic Reach
6 countries

27 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress69%
May 2022Feb 2028

First Submitted

Initial submission to the registry

March 4, 2022

Completed
11 days until next milestone

First Posted

Study publicly available on registry

March 15, 2022

Completed
3 months until next milestone

Study Start

First participant enrolled

May 31, 2022

Completed
4.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2027

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2028

Last Updated

March 2, 2026

Status Verified

February 1, 2026

Enrollment Period

4.7 years

First QC Date

March 4, 2022

Last Update Submit

February 26, 2026

Conditions

Outcome Measures

Primary Outcomes (2)

  • Primary Effectiveness Endpoint

    Freedom from IST at 12-months. Freedom from IST is defined as mean heart rate of ≤ 90bpm or at least a 15% reduction in mean heart rate as compared to baseline, in the absence of new or higher dosage of previously failed medications.

    12-months Post Procedure

  • Primary Safety Endpoint

    Incidence of device or procedure-related major adverse events (MAEs) for subjects undergoing the hybrid sinus node sparing ablation procedure from the index procedure through 30-days post procedure

    30-days Post Procedure

Secondary Outcomes (12)

  • 6-Minute Walk Test

    24-months Post Procedure

  • Borg dyspnea score

    24-months Post Procedure

  • Self-Rating Anxiety Scale

    24-months Post Procedure

  • IST symptom reduction

    24-months Post Procedure

  • QoL - SF-12

    24-months Post Procedure

  • +7 more secondary outcomes

Study Arms (1)

Hybrid sinus node sparing ablation procedure

EXPERIMENTAL

Hybrid sinus node sparing ablation procedure using the ISOLATOR Synergy Surgical Ablation System

Device: AtriCure ISOLATOR Synergy Surgical Ablation System

Interventions

Hybrid sinus node sparing ablation procedure using the ISOLATOR Synergy Surgical Ablation System

Hybrid sinus node sparing ablation procedure

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age ≥ 18 years and ≤ 75 years at time of enrollment consent
  • Subject has a diagnosis of IST
  • 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
  • Subject is willing and able to provide written informed consent

You may not qualify if:

  • Subjects on whom cardiac surgery or single lung ventilation cannot be performed
  • Subjects with indication for or existing ICDs/Pacemakers
  • Presence of channelopathies
  • Previous cardio-thoracic surgery
  • Left Ventricular Ejection Fraction (LVEF) \< 50%
  • Body Mass Index (BMI) ≥ 35
  • Presence of supraventricular or ventricular tachycardia
  • Presence of Postural Orthostatic Sinus Tachycardia (POTS)
  • Presence of congenital heart disease
  • 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
  • Subjects who have had a previous catheter ablation in the right atrium for IST or other disorders
  • Life expectancy \< 24 months
  • Pregnant or planning to become pregnant during trial
  • Subjects with substance abuse
  • Subjects with previous weight loss surgery
  • +4 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (27)

St. Bernard

Jonesboro, Arkansas, 72401, United States

Location

Loma Linda University Health

Loma Linda, California, 92354, United States

Location

Sequoia Hospital

Redwood City, California, 94062, United States

Location

Stanford University

Redwood City, California, 94063, United States

Location

Saint Vincent's Medical Center

Bridgeport, Connecticut, 06606, United States

Location

Medstar Washington Hospital Center

Washington D.C., District of Columbia, 20010, United States

Location

University of Florida

Gainesville, Florida, 32610, United States

Location

Baptist Health

Miami, Florida, 33143, United States

Location

Sarasota Memorial Hospital

Sarasota, Florida, 34239, United States

Location

St. Joseph's Hospital / Baycare Health System

Tampa, Florida, 33607, United States

Location

Memorial Health University Medical Center

Savannah, Georgia, 31404, United States

Location

Saint Alphonsus Regional Medical Center

Boise, Idaho, 83706, United States

Location

Kansas City Cardiac Arrhythmia Research LLC

Overland Park, Kansas, 66211, United States

Location

Mayo Clinic

Rochester, Minnesota, 55905, United States

Location

Wake Forest University Health Sciences

Winston-Salem, North Carolina, 27157, United States

Location

TriHealth, Inc.

Cincinnati, Ohio, 45202, United States

Location

The Christ Hospital

Cincinnati, Ohio, 45219, United States

Location

Texas Cardiac Arrhythmia Research Foundation

Austin, Texas, 78705, United States

Location

Intermountain Healthcare

Salt Lake City, Utah, 84111, United States

Location

Virginia Commonwealth University

Richmond, Virginia, 23219, United States

Location

Swedish Medical Center

Seattle, Washington, 98122, United States

Location

UZ Brussels

Brussels, Belgium

Location

San Raffaele Hospital

Milan, Italy

Location

Amsterdam University Medical Center

Amsterdam, Netherlands

Location

Maastricht University Medical Center

Maastricht, Netherlands

Location

Central Clinic Hospital

Warsaw, Poland

Location

Northern General Hospital

Sheffield, S5 7AU, United Kingdom

Location

Related Publications (15)

  • Olshansky B, Sullivan RM. Inappropriate sinus tachycardia. Europace. 2019 Feb 1;21(2):194-207. doi: 10.1093/europace/euy128.

    PMID: 29931244BACKGROUND
  • Pellegrini CN, Scheinman MM. Epidemiology and definition of inappropriate sinus tachycardia. J Interv Card Electrophysiol. 2016 Jun;46(1):29-32. doi: 10.1007/s10840-015-0039-8. Epub 2015 Aug 27.

    PMID: 26310298BACKGROUND
  • Khiabani AJ, Greenberg JW, Hansalia VH, Schuessler RB, Melby SJ, Damiano RJ Jr. Late Outcomes of Surgical Ablation for Inappropriate Sinus Tachycardia. Ann Thorac Surg. 2019 Oct;108(4):1162-1168. doi: 10.1016/j.athoracsur.2019.03.103. Epub 2019 May 8.

    PMID: 31077661BACKGROUND
  • de Asmundis C, Chierchia GB, Sieira J, Stroker E, Umbrain V, Poelaert J, Brugada P, La Meir M. Sinus Node Sparing Novel Hybrid Approach for Treatment of Inappropriate Sinus Tachycardia/Postural Orthostatic Sinus Tachycardia With New Electrophysiological Finding. Am J Cardiol. 2019 Jul 15;124(2):224-232. doi: 10.1016/j.amjcard.2019.04.019. Epub 2019 Apr 23.

    PMID: 31084999BACKGROUND
  • Sheldon RS, Grubb BP 2nd, Olshansky B, Shen WK, Calkins H, Brignole M, Raj SR, Krahn AD, Morillo CA, Stewart JM, Sutton R, Sandroni P, Friday KJ, Hachul DT, Cohen MI, Lau DH, Mayuga KA, Moak JP, Sandhu RK, Kanjwal K. 2015 heart rhythm society expert consensus statement on the diagnosis and treatment of postural tachycardia syndrome, inappropriate sinus tachycardia, and vasovagal syncope. Heart Rhythm. 2015 Jun;12(6):e41-63. doi: 10.1016/j.hrthm.2015.03.029. Epub 2015 May 14. No abstract available.

    PMID: 25980576BACKGROUND
  • Nwazue VC, Paranjape SY, Black BK, Biaggioni I, Diedrich A, Dupont WD, Robertson D, Raj SR. Postural tachycardia syndrome and inappropriate sinus tachycardia: role of autonomic modulation and sinus node automaticity. J Am Heart Assoc. 2014 Apr 10;3(2):e000700. doi: 10.1161/JAHA.113.000700.

    PMID: 24721800BACKGROUND
  • Masumoto A, Takemoto M, Mito T, Tanaka A, Kawano Y, Kumeda H, Kang H, Matsuo A, Hida S, Okazaki T, Tayama KI, Yoshitake K, Kosuga K. Inappropriate Sinus Tachycardia Diagnosed and Treated as Depression Successfully Treated by Radiofrequency Catheter Ablation. Intern Med. 2017;56(5):523-526. doi: 10.2169/internalmedicine.56.7579. Epub 2017 Mar 1.

    PMID: 28250298BACKGROUND
  • Yasin OZ, Vaidya VR, Chacko SR, Asirvatham SJ. Inappropriate Sinus Tachycardia: Current Challenges and Future Directions. J Innov Card Rhythm Manag. 2018 Jul 15;9(7):3239-3243. doi: 10.19102/icrm.2018.090706. eCollection 2018 Jul. No abstract available.

    PMID: 32479576BACKGROUND
  • Cappato R, Castelvecchio S, Ricci C, Bianco E, Vitali-Serdoz L, Gnecchi-Ruscone T, Pittalis M, De Ambroggi L, Baruscotti M, Gaeta M, Furlanello F, Di Francesco D, Lupo PP. Clinical efficacy of ivabradine in patients with inappropriate sinus tachycardia: a prospective, randomized, placebo-controlled, double-blind, crossover evaluation. J Am Coll Cardiol. 2012 Oct 9;60(15):1323-9. doi: 10.1016/j.jacc.2012.06.031. Epub 2012 Sep 12.

    PMID: 22981555BACKGROUND
  • Kreisel D, Bailey M, Lindsay BD, Damiano RJ Jr. A minimally invasive surgical treatment for inappropriate sinus tachycardia. J Thorac Cardiovasc Surg. 2005 Aug;130(2):598-9. doi: 10.1016/j.jtcvs.2004.12.026. No abstract available.

    PMID: 16077449BACKGROUND
  • de Asmundis C, Chierchia GB, Lakkireddy D, Romeya A, Okum E, Gandhi G, Sieira J, Vloka M, Jones SD, Shah H, Winner M, Patel D, Whalen SP, Beaty EH, Kincaid EH, Lee A, Brodt C, Taylor BJ, Colombowala I, Romano M, Morady F, Stroker E, Overeinder I, Bala G, Van Meeteren J, Krauthammer Y, Koerber S, Shults C, Thomaides A, Badhwar N, Gopinathannair R, Shah A, Tummala R, Bello D, Hoff S, Almorad A, Frazier K, Brugada P, La Meir M. Sinus node sparing novel hybrid approach for treatment of inappropriate sinus tachycardia/postural sinus tachycardia: multicenter experience. J Interv Card Electrophysiol. 2022 Apr;63(3):531-544. doi: 10.1007/s10840-021-01044-5. Epub 2021 Aug 23.

    PMID: 34424446BACKGROUND
  • C. De Asmundis et al, "Thoracoscopic Ablation of Inappropriate Sinus Tachycardia and Postural Orthostatic Tachycardia Syndrome." Hands-On-Ablation, The Expert's Approach, Third Edition.

    BACKGROUND
  • Lakkireddy D, Garg J, DeAsmundis C, LaMeier M, Romeya A, Vanmeetren J, Park P, Tummala R, Koerber S, Vasamreddy C, Shah A, Shivamurthy P, Frazier K, Awasthi Y, Chierchia GB, Atkins D, Bommana S, Di Biase L, Al-Ahmad A, Natale A, Gopinathannair R. Sinus Node Sparing Hybrid Thoracoscopic Ablation Outcomes in Patients with Inappropriate Sinus Tachycardia (SUSRUTA-IST) Registry. Heart Rhythm. 2022 Jan;19(1):30-38. doi: 10.1016/j.hrthm.2021.07.010. Epub 2021 Jul 30.

    PMID: 34339847BACKGROUND
  • Calkins H, Hindricks G, Cappato R, Kim YH, Saad EB, Aguinaga L, Akar JG, Badhwar V, Brugada J, Camm J, Chen PS, Chen SA, Chung MK, Nielsen JC, Curtis AB, Davies DW, Day JD, d'Avila A, de Groot NMSN, Di Biase L, Duytschaever M, Edgerton JR, Ellenbogen KA, Ellinor PT, Ernst S, Fenelon G, Gerstenfeld EP, Haines DE, Haissaguerre M, Helm RH, Hylek E, Jackman WM, Jalife J, Kalman JM, Kautzner J, Kottkamp H, Kuck KH, Kumagai K, Lee R, Lewalter T, Lindsay BD, Macle L, Mansour M, Marchlinski FE, Michaud GF, Nakagawa H, Natale A, Nattel S, Okumura K, Packer D, Pokushalov E, Reynolds MR, Sanders P, Scanavacca M, Schilling R, Tondo C, Tsao HM, Verma A, Wilber DJ, Yamane T. 2017 HRS/EHRA/ECAS/APHRS/SOLAECE expert consensus statement on catheter and surgical ablation of atrial fibrillation. Heart Rhythm. 2017 Oct;14(10):e275-e444. doi: 10.1016/j.hrthm.2017.05.012. Epub 2017 May 12. No abstract available.

    PMID: 28506916BACKGROUND
  • Broglio KR, Connor JT, Berry SM. Not too big, not too small: a goldilocks approach to sample size selection. J Biopharm Stat. 2014;24(3):685-705. doi: 10.1080/10543406.2014.888569.

    PMID: 24697532BACKGROUND

Study Officials

  • Dhanunjaya Lakkireddy, MD

    Kansas City Heart Rhythm Institute

    PRINCIPAL INVESTIGATOR
  • Mark La Meir, MD

    Universitair Ziekenhuis Brussel

    PRINCIPAL INVESTIGATOR
  • Carlo de Asmundis, MD

    Universitair Ziekenhuis Brussel

    PRINCIPAL INVESTIGATOR
  • Thomas Beaver, MD

    University of Florida

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 4, 2022

First Posted

March 15, 2022

Study Start

May 31, 2022

Primary Completion (Estimated)

February 1, 2027

Study Completion (Estimated)

February 1, 2028

Last Updated

March 2, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

Locations