Long Term Evaluation and Management of Atrial Fibrillation in Pacemaker Patients

August 28, 2019 updated by: Yonsei University

Long Term Evaluation and Management of Atrial Fibrillation in Pacemaker Patients (AF-pacemaker Tx Study)

This study is prospective randomized study which was performed in multicenter (General Hospital) in Korea. Inclusion criteria is patients who developed atrial fibrillation/flutter/tachycardia after pacemaker implantation among AF-pacemaker study (ClinicalTrials.gov Identifier: NCT03303872). The purpose is to investigate the recurrence rate of AF/AFL/AT in both groups after randomization for 60 months (5 years) in patients post pacemaker implantation and assess long term clinical results.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
135

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Korea, Republic of
      • Seoul, Korea, Republic of, 03722
        • Division of Cardiology, Yonsei University Health System, Yonsei University College of Medicine
        • Contact:
          • Boyoung Joung, MD, Ph.D
          • Phone Number: 82-2-2228-8460
          • Email: cby6908@yuhs.ac

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

19 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients who developed atrial fibrillation/flutter/tachycardia after pacemaker implantation among AF-pacemaker study (ClinicalTrials.gov Identifier: NCT03303872).
  • Age: 18-80 years
  • Patients eligible for the indications for permanent pacemaker implantation in accordance with 2016 revised Korean indication guideline on cardiac pacemaker implantation
  • Estimated percentage of atrial pacing >40% under sinus rhythm (LR≥60bpm, close hysteresis and rest rate)
  • Estimated percentage of ventricular pacing >40% under sinus rhythm (LR≥40bpm, DDD pacing, close hysteresis and rest rate)
  • Patients who are willing to sign the informed consent.
  • Patients who are willing to receive the implantation and post-operative follow-up.

Exclusion Criteria:

  • Persistent or permanent AF
  • Severe hepatic and renal insufficiency (AST or ALT ≥ three times of normal upper limit; SCr > 3.5 mg/dl or Ccr < 30ml/min)
  • Thyroid gland dysfunction
  • Pregnancy
  • Malignant tumor
  • Severe organic heart disease (such as moderate to severe mitral regurgitation, severe valvular regurgitation and stenosis, dilated cardiomyopathy, hypertrophic cardiomyopathy, severe heart valve disease)
  • Life expectancy < 12 months
  • Patients unable or unwilling to cooperate in the study procedures.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: ablation
Patients in this group are treated with radio-frequency catheter ablation.
Drug: midazolam with fentanyl
Radio-frequency catheter ablation is performed in the post-absorptive state after sedation with midazolam and fentanyl. Multipolar catheters were positioned in the coronary sinus, His, and the right atrium. The three-dimensional LA geometry was reconstructed using a CARTO or NavX electroanatomical mapping system. Circumferential pulmonary vein isolation was performed in all patients using a irrigated-tip catheter. A circular mapping catheter was used to confirm the isolation of the pulmonary veins. Successful ablation was defined by the elimination of all the pulmonary vein potentials along the antrum or inside the veins. If the AF was not terminated after elimination of all the pulmonary vein potentials, linear ablation and complex fragmented atrial electrogram ablation were performed.
No Intervention: non-ablation
Patients in this group are treated with rate control medications (e.g., beta blocker, calcium channel blocker, and digitalis) and anti-arrhythmic drugs. They also can be treated with DC cardio-version.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Recurrence rate of AF/AFL/AT in both groups
Time Frame: 1 year after randomization
recurrence of AF/AFL/AT evaluated using device interrogation
1 year after randomization
Recurrence rate of AF/AFL/AT in both groups
Time Frame: 6-month follow up to 5 years
recurrence of AF/AFL/AT evaluated using device interrogation
6-month follow up to 5 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Left ventricular ejection fraction
Time Frame: 1 year after randomization
cardiac function evaluated using echocardiography
1 year after randomization
Left atrial diameter
Time Frame: 1 year after randomization
cardiac function evaluated using echocardiography
1 year after randomization
Stroke
Time Frame: at least 1 year after randomization
ischemic and hemorrhagic stroke
at least 1 year after randomization
Stroke
Time Frame: 6-month follow up to 5 years
ischemic and hemorrhagic stroke
6-month follow up to 5 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Yonsei University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 1, 2019

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2028

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 1, 2028

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 27, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 9, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 17, 2018

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 29, 2019

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 28, 2019

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2019

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 4-2017-1028

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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