ClinicalTrials.gg
CompletedNCT03260244Updated Nov 8, 2024Results posted

EnSite Precision Observational Study

An observational study in Cardiac Arrhythmia, sponsored by Abbott Medical Devices. Completed at 7 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-11-08.

Sponsored by Abbott Medical Devices (part of Abbott) · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
1,065
Ages
18 Years and older
Sex
All
01

Study summary

This document is a clinical investigation plan (CIP) for the EnSite Precision Observational Study.

This clinical study is intended to quantify and characterize the usage of the EnSite Precision™ Cardiac Mapping System (Software version 2.0.1 or higher) in a real-world environment. This study will be conducted in patients who are indicated for a cardiac electrophysiological (EP) mapping and radio frequency ablation procedure using a three-dimensional system.

Read the detailed description

The EnSite Precision™ Cardiac Mapping System is a newly developed system that introduces features such as Delayed Enhancement Magnetic Resonance Imaging (DE-MRI) image integration, lesion marking automaticity, automatic mapping, and workflow flexibility to aid in the success of complex ablation procedures. Utilization of this system in the treatment of complex ablation procedures and its impact on patient outcomes is not well characterized. This clinical study is designed to collect a broad range of usage scenarios, therefore this clinical study has limited patient selection criteria and data collection is focused on EnSite Precision™ Cardiac Mapping System usage and patient outcomes.

The data collected from the procedure (performed per Instructions For Use (IFU) and per standard practice of the physician) as well as the 12 month follow up period enables the Sponsor to review the system's standard practice usage. This information will be added to the current knowledge and understanding of treatment options for patients with arrhythmias, which can assist the Sponsor to provide future recommendations for best practices to improve patient outcomes.

02

Conditions studied

  • Cardiac Arrhythmia

Keywords

  • atrial fibrillation
  • atrial flutter
  • supraventricular tachycardia
  • ventricular tachycardia
  • premature ventricular contractions
  • cardiac mapping system
03

In context

Arrhythmias, Cardiac

1,051 studies on the registry are indexed under Arrhythmias, Cardiac; 236 are open to participants now.

This study's enrollment of 1,065 is above the median of 200 across 467 observational studies indexed under Arrhythmias, Cardiac.

Browse Arrhythmias, Cardiac studies →

Lead sponsor

Abbott Medical Devices is the lead sponsor of 539 studies on the registry; 33 are open to participants now.

Of its 53 completed or terminated interventional studies of FDA-regulated products, 44 (83%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

The intended population for this clinical study is patients over the age of 18 years who are eligible for a cardiac electrophysiology mapping and radiofrequency ablation procedure using the EnSite Precision™ Cardiac Mapping System.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Indicated for a cardiac electrophysiology mapping and radiofrequency ablation procedure using a 3-dimensional mapping system per Instructions for Use
  • Over 18 years of age
  • Able to provide for study participation and willing and able to comply with the protocol described evaluations and follow up schedule

Exclusion criteria

Exclusion Criteria:

  • Patients who are only presenting with:

    • Atrioventricular Nodal Reentrant Tachycardia (AVNRT)
    • Atrioventricular Reentrant Tachycardia (AVRT)
  • Planned cryoablation procedure
  • Implanted with a neurostimulator
  • to anticoagulation
  • Known presence of cardiac thrombus
  • Recent (\<3 months) myocardial infarction or unstable angina or coronary artery by-pass
  • Currently enrolled in a clinical study/investigation evaluating another device or drug that would confound the results of this study
  • Pregnant or nursing
  • Individuals whose willingness to volunteer in a study, in the judgement of investigator or public authorities, could be unduly influenced by lack of or loss of the autonomy due to immaturity, or mental disability, or adverse personal circumstances, or hierarchical influence
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
1,065 participants (actual)
Patient registry
No

Interventions

  • Procedurecardiac mapping and radiofrequency ablation procedure

    It is a minimally invasive procedure which can be performed using either general or conscious sedation. During catheter ablation, catheters (narrow, flexible tubes) are inserted into a blood vessel, often through a site in the groin (upper thigh) or neck, and guided through the vein until they reach the heart. Small electrodes on the tip of the catheters stimulate and record the heart's activity. This test, called an electrophysiology study (EPS), allows the doctor to pinpoint the exact location of the short circuit. Another word for pinpointing the exact location of the short circuit is 'mapping', for which precision is a key requirement to maximize a successful outcome. Once the location is confirmed, the short circuit is either destroyed (to reopen the electrical pathway) or blocked (to prevent it from sending faulty signals to the rest of the heart).

06

What researchers measure

Primary outcomes

  1. Rate of Acute Success Based on Pre-defined Procedural Endpoints

    The number and proportion of subjects with acute success will be summarized. Acute success was defined as the physician's goal or intention for the procedure.

    Time frame: during procedure

  2. Freedom From Arrhythmia Recurrence

    This analysis will be performed using the Kaplan-Meier (KM) analyses. The start date is the date of the index procedure. For subjects who do not experience an event, their follow up duration will be defined from the start date to the date of death, withdrawal, or last follow-up, whichever occurred later.

    Time frame: From date of procedure until the date of first documented arrhythmia recurrence or date of study completion or withdrawal for any cause, whichever came first, assessed up to 12 months

07

Results

Posted Nov 8, 2024

Participant flow

Participant flow — Overall Study
MilestoneAll Subjects
Started1065
Treated925
1-month follow up898
6-month follow up765
12-month follow up722
Completed779
Not completed286
Withdrew: Death19
Withdrew: Lost to follow-up60
Withdrew: Withdrawal by subject48
Withdrew: Procedure not performed21
Withdrew: Enrollment criteria not met31
Withdrew: Procedure not performed per protocol12
Withdrew: Subject noncompliance6
Withdrew: No inducible arrhythmia2
Withdrew: Procedure not performed by trained physician on study2
Withdrew: Screen failure2
Withdrew: Treated off label69
Withdrew: No radiofrequency ablation14

Outcome measures

PrimaryRate of Acute Success Based on Pre-defined Procedural Endpoints

The number and proportion of subjects with acute success will be summarized. Acute success was defined as the physician's goal or intention for the procedure.

Time frame:
during procedure
Reported as:
Count of participants · Participants
Rate of Acute Success Based on Pre-defined Procedural Endpoints
ParticipantsAll Subjects
Rate of Acute Success Based on Pre-defined Procedural Endpoints901
PrimaryFreedom From Arrhythmia Recurrence

This analysis will be performed using the Kaplan-Meier (KM) analyses. The start date is the date of the index procedure. For subjects who do not experience an event, their follow up duration will be defined from the start date to the date of death, withdrawal, or last follow-up, whichever occurred later.

Time frame:
From date of procedure until the date of first documented arrhythmia recurrence or date of study completion or withdrawal for any cause, whichever came first, assessed up to 12 months
Reported as:
Count of participants · Participants
Freedom From Arrhythmia Recurrence
ParticipantsAll Subjects
Freedom From Arrhythmia Recurrence471

Adverse events

Collected over No adverse event data were collected during the procedure. No adverse event data were collected during the 12 month follow-up.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
All Subjects20/1,065 (1.9%)——

Baseline characteristics

Age, Continuous
Age, Continuous(years)All Subjects
Mean64.3 ± 11.6
Sex: Female, Male
Sex: Female, Male(Participants)All Subjects
Female279
Male646
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)All Subjects
Region of Enrollment
Region of Enrollment(Participants)All Subjects
United States751
Canada174
08

Study locations

7 sites
  • Baptist Medical Center Princeton
    Birmingham, Alabama 35211, United States
  • Cardiology Associates of North East Arkansas
    Jonesboro, Arkansas 72401, United States
  • Arkansas Cardiology
    Little Rock, Arkansas 72205, United States
  • Bethesda Memorial Hospital
    Boynton Beach, Florida 33435, United States
  • Barnes-Jewish Hospital
    Saint Louis, Missouri 63110, United States
  • Bryan LGH Medical Center East
    Lincoln, Nebraska 68506, United States
  • Aurora Medical Group
    Milwaukee, Wisconsin 53215, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 8, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03260244
Responsible party
Sponsor
First posted
Aug 24, 2017
Start date
Sep 12, 2017
Primary completion
Jan 17, 2020
Completion
Mar 31, 2020
Results posted
Nov 8, 2024
Last update
Nov 8, 2024

Study contacts

Kristin Ruffner, PhD
study director · Abbott

Oversight

Data monitoring committee
No
FDA-regulated drug
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Nov 2024. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion