Using a cardiac monitor to manage atrial fibrillation after catheter ablation

Insertable Cardiac Monitor-Guided Early Intervention to Reduce Atrial Fibrillation Burden Following Catheter Ablation (ICM REDUCE-AF)

Not applicable Interventional University of Rochester · NCT04922281

This study is testing if using a special heart monitor can help people with atrial fibrillation manage their condition better after a procedure to fix it.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment120 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity of Rochester Academic / other
Locations1 site (Rochester, New York)
Trial IDNCT04922281 on ClinicalTrials.gov

What this trial studies

This study investigates the effectiveness of an insertable cardiac monitor (ICM) in managing atrial fibrillation (AF) following catheter ablation. A total of 120 participants will be randomized into two groups: one receiving conventional AF management and the other guided by the Abbott ICM. The ICM allows for early detection of AF recurrence through remote monitoring and patient-triggered transmissions. Participants will be followed for 15 months, including a 3-month blanking period post-ablation, to assess the burden of AF. The study aims to provide insights into improving AF management strategies.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and older with a history of paroxysmal or persistent atrial fibrillation scheduled for catheter ablation.

Not a fit: Patients who do not have a history of atrial fibrillation or those who are not undergoing catheter ablation may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly reduce the burden of atrial fibrillation in patients post-ablation.

How similar studies have performed: Previous studies have shown promise in using remote monitoring for AF management, suggesting potential success for this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion criteria

* History of paroxysmal atrial fibrillation (per 2019 HRS guidelines definition: an episode of AF that terminates spontaneously or with intervention in less than seven days), according to current guideline indications for paroxysmal AF CA (Class I/II); or patients with history of persistent atrial fibrillation (per 2019 HRS guidelines definition: sustained AF episode lasting more than 7 days, but less than 3 years), according to current guideline indications for persistent AF CA (Class I/IIIa) any time in the past.
* 18 years of age or older at time of consent
* CA to be performed for AF as standard of care within 2 calendar months after consent and prior to randomization date
* One of the following:

  * Abbott ICM device indicated for monitoring symptoms after CA as standard of care and inserted within 2 calendar months after consent and prior to randomization date
  * Patients with an existing CIED (ICD/CRTD/PPM/ICM) are allowed if there is an atrial lead to track AF.
  * Patient without an existing CIED preferring to use a noninvasive LT-ECG monitor.

Exclusion criteria

* Inability or unwilling to undergo CA (e.g., presence of intra-cardiac thrombus, contraindication to anticoagulation or other contraindication to CA)
* Inability to tolerate any AAD therapy
* Permanent atrial fibrillation lasting more than 3 years prior to date of consent
* NYHA class IV congestive heart failure
* Life expectancy \<1 year after consent date for any medical condition
* Pregnancy or nursing
* Unwillingness to comply with all post-procedural follow-up requirements and to sign informed consent
* Participation in other interventional research studies (observational registries are allowed).

Where this trial is running

Rochester, New York

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Atrial FibrillationCardiovascular DiseasesHeart DiseasesArrhythmias, CardiacPathologic ProcessesICM, Confirm Rx™ , AF Ablation, Atrial Arrhythmia
Last reviewed 2026-06-10 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.