HRS2020Science: AtriCure Announces Results from CONVERGE IDE Clinical Trial

Results presented virtually via Heart Rhythm 365 Platform; study met primary effectiveness endpoint of superiority in favor of the hybrid Convergent procedure

AtriCure, Inc., a leading innovator in treatments for atrial fibrillation (Afib) and left atrial appendage (LAA) management, announced the results from the CONVERGE IDE clinical trial. This first-of-its-kind trial, designed to demonstrate superiority, showed an 18% difference in favor of the hybrid Convergent procedure as compared to endocardial catheter ablation alone. The results of the trial were presented as part of the late-breaking clinical trials at the Heart Rhythm Society’s (HRS) Annual Scientific Session and were broadcasted virtually via the Heart Rhythm 365 digital platform.



“The CONVERGE study is a monumental step forward in the market focused on the most difficult to treat Afib patients, those with persistent or long-standing persistent forms of the disease,” said Michael Carrel, President and Chief Executive Officer at AtriCure. “This patient population represents many millions of patients and more than two-thirds of all diagnosed Afib patients. The study results presented at HRS mark a major milestone for the CONVERGE study and we look forward to working with the FDA moving forward.”


The CONVERGE IDE trial’s primary effectiveness endpoint is freedom from Afib, atrial tachycardia (AT), and atrial flutter (AFL), absent class I and III anti-arrhythmic drugs (AADs) except for a previously failed or demonstrated intolerance to class I or III AADs, with no increase in dosage following the 3-month blanking period through the 12-months post procedure follow-up visit. The primary safety endpoint is the incidence of protocol-defined major adverse events (MAEs) for subjects undergoing the Convergent procedure from the time of the intervention through 30-days post intervention. There were no deaths, cardiac perforations or atrio-esophageal fistulas reported in the trial. Dr. DeLurgio presented the MAE rate of 7.8% in treatment arm, which was lower than the protocol pre-specified performance goal of 12%. There were also no long-lasting safety events observed in the trial. More detail can be found in Table 1 below.


The trial enrolled 153 patients at 27 locations (25 in the United States and 2 in the United Kingdom). Patients were randomized at a rate of 2:1 and received either the hybrid Convergent procedure or an endocardial catheter ablation alone. Dr. David DeLurgio, MD, of Emory St. Joseph’s Hospital in Atlanta, Georgia, was the trial’s national principal investigator.


“This is one of the most highly anticipated trials in the Afib space in many years because of the potential to effectively treat patients who are difficult to treat. I’m very pleased about the results of the trial, which showed an 18% difference between the Convergent arm and the control arm in evaluable patients at 12 months,” said Dr. DeLurgio. “Additionally, the measure of Afib burden reduction of greater than 90% was remarkable and much better than expected. The data presented showed a greater than 23% advantage for the Convergent arm over the control arm. Based on these findings, epicardial and endocardial ablation using the hybrid Convergent procedure could prove to be a preferred therapy for patients with advanced forms of Afib.”


Afib affects over 33 million people worldwide and approximately 70% have persistent and longstanding persistent Afib.1 Afib increases the risk of stroke and is linked with increased risk of mortality.


“Most importantly, in keeping with the AtriCure mission, we look forward to working interactively with the FDA towards the approval of the therapy, which will facilitate targeted training and a more informed physician-patient discussion,” said Mr. Carrel.



Table 1: Effectiveness endpoints
Note: FDA is currently reviewing the results of the CONVERGE IDE Trial


ablation arm

ablation arm

(Convergent –


Freedom from AFib/AFL/AT from 3-month blanking period through the 12-months*
without imputation of missing data as failure
n%, (95% Confidence Interval)

67.7% (67/99)

50.0% (25/50)
(36.1%- 63.9%)

in favor of


Freedom from AFib/AFL/AT from 3-month blanking period through the 12-months*
with imputation of missing data as failure
n%, (95% Confidence Interval)

65.7% (67/102)
(56.5%- 74.9%)

49.0% (25/51)
(35.3% – 62.7%)

in favor of


>90% burden reduction at 12 months*
n%, (95% Confidence Interval)

80% (60/75)
(70.9% – 89.1%)

56.8% (25/44)
(42.2% – 71.5%)

in favor of


Freedom from AF through 12 months *
n%, (95% Confidence Interval)

71% (72/102)
(61.7% – 79.4%)

51% (26/51)
(37.3% – 64.7%)

in favor of


*Without new/ increased dosage of previously failed class I/III AADs
AADs: anti-arrhythmic drugs; AF: atrial fibrillation; AFL: atrial flutter; AT: atrial tachycardia



The EPi-Sense device and hybrid procedure are investigational and not approved in the U.S. for the treatment of Afib. The data analyses presented have not been reviewed by FDA.


Virtual Broadcast from Heart Rhythm 365 and Conference Call to Discuss Trial Results


The results were broadcast on the Heart Rhythm 365 digital platform. AtriCure will host a virtual meeting at HRS at 1:00 p.m. Eastern U.S. time to discuss the results from the trial. A live audio and slide presentation webcast of the meeting may be accessed by visiting the Investors page of AtriCure’s corporate website at The live audio-only feed of the call may be access through an operator by calling 844-884-9951 for domestic callers and 661-378-9661 for international callers using conference ID number 1978277. A replay of the presentation will be available on the website following the meeting.


About the CONVERGE IDE Trial


The CONVERGE IDE trial is a landmark prospective, superiority, randomized controlled pivotal trial to evaluate the overall success of the hybrid Convergent ablation to endocardial catheter ablation for patients with persistent or long-standing persistent Afib. The procedure combines a minimally invasive, closed chest epicardial ablation performed by a surgeon with endocardial catheter ablation performed by an electrophysiologist.


About AtriCure, Inc.


AtriCure, Inc. provides innovative technologies for the treatment of Afib and related conditions. Afib affects more than 33 million people worldwide. Electrophysiologists and cardiothoracic surgeons around the globe use AtriCure technologies for the treatment of Afib and reduction of Afib related complications. AtriCure’s Isolator® Synergy™ Ablation System is the first and only medical device to receive FDA approval for the treatment of persistent Afib. AtriCure’s AtriClip Left Atrial Appendage (LAA) Exclusion System products are the most widely sold LAA management devices worldwide. For more information, visit


1 Berisso, et al. Epidemiology of atrial fibrillation: European perspective. Clin Epidemiol. 2014;6:213-220.