Clinical and Healthcare Economic OutcoMes From ReAl-worlD Use in Europe of an AI Software During AF Ablation (COMRADE-AI)

January 14, 2026 updated by: Volta Medical
The goal of this Observational Prospective Multi-center Study is to observe the acute and long-term safety and performance outcomes after spatiotemporal dispersion-based AF/AT ablation utilizing the Volta Medical AI software in "real-life" clinical practice, without any imposed clinical workflow. Moreover, this study will allow to collect medico-economic data related to the tailored ablation strategy guided by the Volta Medical AI software.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not 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.

Detailed Description

All patients enrolled are treated for atrial fibrillation/tachycardia via a catheter ablation procedure using Volta Medical AI software during the mapping phase to identify areas of interest specific to the patient. The ablation approach is free and chosen by the operator according to standard practice. Intraoperative and postoperative follow-up will be performed as in routine clinical practice during AF ablation procedures: hospitalization for ablation procedure and standard postoperative quarterly visits (at 3 months, at 6 months and/or 9 months as per the study investigator's Standard Of Care) then annual visits up to 24 months post-ablation. Adverse Events, recurrences of atrial arrhythmia and AF related symptoms (EHRA score) are collected from the patient's enrollment until the patient's study termination. A quality-of-life questionnaire related to general health (EQ-5D-3L) is collected during the preoperative visit and at least during annual follow-up visits. The patient's study-termination corresponds to the last annual visit at 24 months post-ablation index.

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.
Observational

Enrollment (Actual)

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.
186

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • France
      • Marseille, France, 13008
        • Hôpital Saint-Joseph
      • Massy, France, 91300
        • Hôpital Privé Jacques Cartier
      • Nice, France, 06105
        • Polyclinique Saint George
      • Saint-Denis, France, 93207
        • Centre Cardiologique du Nord
      • Strasbourg, France, 67000
        • Clinique Rhéna
      • Toulouse, France, 31000
        • Clinique Pasteur
  • Germany
      • München, Germany, 80636
        • German Heart Center Munich

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

All adult patient candidate eligible for catheter ablation to treat paroxysmal or persistent atrial fibrillation, atrial tachycardia, de novo or after one or several previous ablation procedures, and for which the investigator considers using VX1 or Volta AF-Xplorer or Volta AF-Xplorer II.

Description

Inclusion Criteria:

  1. Patient aged 18 years or older.
  2. Patient candidate for catheter ablation to treat paroxysmal or persistent atrial fibrillation, atrial tachycardia, de novo or after one or several previous ablation procedures, and for which the investigator considers using VX1 or Volta AF-Xplorer or Volta AF-Xplorer II.
  3. Patient able and willing to provide written informed consent to participate in the study.
  4. Only for France: Patient affiliated to the French social security system.

Exclusion Criteria:

  1. Contraindication to AF/AT catheter ablation.
  2. Patient who is or could potentially be pregnant.
  3. Person deprived of liberty or under guardianship.
  4. Person unable to undergo a medical monitoring for geographical, social or psychological reasons.
  5. Patient's refusal to participate in the study.
  6. Enrollment in an investigational study evaluating another device, biologic, or drug.

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

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
Time Frame
Freedom from clinically significant AF or atrial arrhythmia recurrence, after one or multiple ablation procedures, with or without antiarrhythmic drugs, stratified by type of clinical workflow.
Time Frame: [24 months]
[24 months]
VX1/Volta AF-Xplorer/Volta AF-Xplorer II-related Incident rate during ablation procedure.
Time Frame: [24months]
[24months]
VX1/Volta AF-Xplorer/Volta AF-Xplorer II-related Adverse Event rate.
Time Frame: [24months]
[24months]

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
Time Frame
Progression of Quality-Of-Life score ("EQ-5D-3L") during the study (at inclusion, at quarterly visits, at 12 months and at 24 months).
Time Frame: Preoperative; [24months]
Preoperative; [24months]
Progression of the AF related symptom score ("EHRA") during the study (at inclusion, at quarterly visits, at 12 months and at 24 months).
Time Frame: Preoperative; [24months]
Preoperative; [24months]
Hospitalization rate during the post-ablation follow-up period.
Time Frame: [24months]
[24months]
Serious Adverse Event rate during the post-ablation follow-up period.
Time Frame: [24months]
[24months]
Average number of ablation procedures per patient up to 24 months follow-up.
Time Frame: [24months]
[24months]
Average number of cardioversions per patient up to 24 months follow-up
Time Frame: [24months]
[24months]
Progression of patient proportion under antiarrhythmic drugs and/or anticoagulant treatments during the study.
Time Frame: [24months]
[24months]
Health economics analysis including QALY metric.
Time Frame: [24months]
[24months]

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.
Volta Medical

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Fortrea

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Julien SEITZ, MD, Hôpital Saint Joseph Marseille

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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 (Actual)

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 27, 2023

Primary Completion (Estimated)

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.
April 27, 2027

Study Completion (Estimated)

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.
April 27, 2027

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).
October 9, 2023

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.
October 9, 2023

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.
October 13, 2023

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.
January 15, 2026

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.
January 14, 2026

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.
January 1, 2026

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.
  • CLIPL-01-004

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

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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