SMART China, A Multi-center Clinical Registry Study

January 31, 2025 updated by: Biosense Webster, Inc.

The Effectiveness and Safety in the Treatment of Circumferential Pulmonary Vein Isolation (CPVI) for Symptomatic Paroxysmal Atrial Fibrillation With THERMOCOOL® SMARTTOUCH™ Catheter in China, A Multi-center Clinical Registry Study

This is a prospective effectiveness and safety assessment of the study device during radiofrequency (RF) ablation treatment of patients with drug refractory symptomatic atrial fibrillation.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

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

The purpose of this study is to assess the effectiveness and safety of the THERMOCOOL® SMARTTOUCH™ catheter in the treatment of drug refractory symptomatic paroxysmal atrial fibrillation (PAF) undergoing CPVI.

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 (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.
200

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.
  • Phase 4

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

  • China
    • Beijing
      • Chaoyang, Beijing, China, 100020
        • Beijing Chao-Yang Hospital
      • Xicheng, Beijing, China, 100037
        • Fu Wai Hospital CAMS&PUMC
    • Hubei
      • Wuchang, Hubei, China, 430060
        • Renmin Hospital of Wuhan University
      • Wuhan, Hubei, China, 430022
        • Wu Han Asia Heart Hospital
    • Jiangsu
      • Nanjing, Jiangsu, China, 210029
        • Jiangsu Province Hospital
      • Xuzhou, Jiangsu, China, 221009
        • Xuzhou Central Hospital
    • Jiangxi
      • Nanchang, Jiangxi, China, 330006
        • The Second Affiliated Hospital to Nanchang University
    • Liaoning
      • Dalian, Liaoning, China, 116011
        • The First Affiliated Hospital of Dalian Medical University
      • Shenyang, Liaoning, China, 110015
        • The General Hospital Of Shenyang Military Region
    • Shandong
      • Jinan, Shandong, China, 250012
        • Qi Lu Hospital of Shandong University
    • Tianjin
      • Heping, Tianjin, China, 300052
        • General Hospital Affiliated to Tianjin Medical University
    • Zhejiang
      • Hangzhou, Zhejiang, China, 310003
        • The First Affiliated Hospital, Zhejiang University

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Age 18 years or older
  2. Failure of at least one antiarrhythmic drug (AAD) for AF (class I or III, or AV nodal blocking agents such as beta blockers and calcium channel blockers) as evidenced by recurrent symptomatic AF, or intolerance to the AAD
  3. Patients with paroxysmal AF eligible for catheter ablation
  4. Patients with symptomatic PAF who have had at least one documented AF episode in the twelve (12) months prior to enrollment. Documentation may include but is not limited to electrocardiogram (ECG), Holter monitor (HM) or transtelephonic monitor (TTM)
  5. Able and willing to comply with all pre-, post- and follow-up testing and requirements
  6. Be able to sign IRB/EC-approved informed consent form

Exclusion Criteria:

  1. AF secondary to electrolyte imbalance, thyroid disease, or reversible or non-cardiac cause
  2. Previous surgical or catheter ablation for AF
  3. Any PCI, cardiac surgery, or valvular cardiac surgical or percutaneous procedure (e.g., ventriculotomy, atriotomy, and valve repart or replacement and presence of a prosthetic valve) within the past 2 months.
  4. Any carotid stenting or endarterectomy.
  5. Coronary artery bypass graft (CABG) procedure within the last 180 days (6 months)
  6. AF episodes lasting longer than 7 days or terminated via cardioversion
  7. Documented left atrial thrombus on imaging
  8. Uncontrolled heart Failure or New York Heart Association (NYHA) class III or IV
  9. Myocardial Infarction within the previous 60 days (2 months)
  10. Documented thromboembolic event (including TIA) within the past 12 months
  11. Rheumatic heart disease
  12. Awaiting cardiac transplantation or other cardiac surgery within the next 365 days (12 months)
  13. Significant pulmonary disease, (e.g., restrictive pulmonary disease, constrictive or chronic obstructive pulmonary disease) or any other disease or malfunction of the lungs or respiratory system that produces chronic symptoms.
  14. Significant congenital anomaly or medical problem that in the opinion of the investigator would preclude enrollment in this study
  15. Active illness or active systemic infection or sepsis
  16. Diagnosed atrial myxoma
  17. Unstable angina within the past 60 days (2 months)
  18. History of blood clotting or bleeding abnormalities
  19. Life expectancy less than 365 days (12 months)
  20. Hypertrophic obstructive cardiomyopathy
  21. Presence of implanted ICD
  22. Contraindication to anticoagulation
  23. Contraindication to isoproterenol
  24. Presence of intramural thrombus, tumor or other abnormality that precludes catheter introduction or manipulation
  25. Women who are pregnant and/or breast feeding
  26. Presence of a condition that precludes vascular access.
  27. Patients presenting contraindications for study catheter(s), as indicated in the respective Instructions For Use
  28. 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

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group 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.
Experimental: Treatment group
THERMOCOOL® SMARTTOUCH™
Device: THERMOCOOL® SMARTTOUCH™
Pulmonary vein isolation by RF ablation treatment with the THERMOCOOL® SMARTTOUCH™ contact force sensing catheters (study device)
Other Names:
  • Pulmonary vein isolation

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
Percentage of Patients With Freedom From Documented Symptomatic Atrial Fibrillation (AF), Atrial Tachycardia (AT), or Atrial Flutter (AFL) Episodes
Time Frame: 12 Months
The primary effectiveness endpoint for this study is freedom from documented symptomatic atrial fibrillation (AF), atrial tachycardia (AT), or atrial flutter (AFL) episodes through 12-month follow-up after the index ablation procedure (includes a three-month blanking period).
12 Months

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
Percentage of Patients Where Acute Success Was Achieved
Time Frame: 0.5 hours
Confirmation of entrance block in all pulmonary veins (PVs) with an isoproterenol intravenous challenge 0.5h post procedure. Exit Block is optional for this study.
0.5 hours
Average Contact Force Per Pulmonary Vein Ablation Procedure
Time Frame: 1 day during procedure
Contact force (CF) is the force (g) between the device tip and endocardial wall. Two subjects didn't have CF data
1 day during procedure
Percent of Subjects With Pulmonary Vein Reconnection for the Index Procedure
Time Frame: 1 day during procedure
Percentage of subjects with PV reconnection after the first ablation
1 day during procedure
Procedure Time, Ablation Time and Fluoroscopy Time
Time Frame: 1 day during procedure
Procedure Time, Ablation Time and Fluoroscopy Time in minutes
1 day during procedure

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.
Biosense Webster, Inc.

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: Congxin Huang, Renmin Hospital of Wuhan University

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.

Helpful Links

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.
July 1, 2015

Primary Completion (Actual)

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 30, 2017

Study Completion (Actual)

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 30, 2017

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).
June 25, 2015

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.
June 26, 2015

First Posted (Estimated)

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.
June 30, 2015

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.
March 25, 2025

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 31, 2025

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, 2025

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.
  • BW-201501

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

Yes

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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