NCT06828939

Brief Summary

This is a prospective, single-arm First-in-Human study to demonstrate the safety and effectiveness of the CardioFocus OptiShot Pulsed Field Ablation System for catheter ablation of atrial fibrillation (AF). Patients with symptomatic paroxysmal (short-duration) AF who have not had a previous catheter ablation for AF will be considered for the study. Patients will be followed for one year after the initial ablation procedure.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
75

participants targeted

Target at P50-P75 for not_applicable

Timeline
1mo left

Started Dec 2024

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress96%
Dec 2024May 2026

Study Start

First participant enrolled

December 12, 2024

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

February 4, 2025

Completed
13 days until next milestone

First Posted

Study publicly available on registry

February 17, 2025

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2026

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2026

Expected
Last Updated

October 7, 2025

Status Verified

October 1, 2025

Enrollment Period

1.3 years

First QC Date

February 4, 2025

Last Update Submit

October 2, 2025

Conditions

Keywords

ablationpulsed field ablation

Outcome Measures

Primary Outcomes (2)

  • Primary Effectiveness Endpoint - Acute Procedure Success

    Pulmonary vein isolation at the end of the index procedure

    During procedure

  • Primary Safety Endpoint - Rate of Primary Serious Adverse Events

    The rate of participants with at least 1 of the following Primary Serious Adverse Events occurring within 7 days unless otherwise specified: * AE fistula (assessed at \>=60 days) * Cardiac perforation, tamponade, or pericardial effusion * Complete heart block * Death * Major vascular access complications/bleeding requiring surgical intervention or blood transfusion * MI * Pericarditis * PNI resulting in persistent diaphragmatic paralysis (assessed at \<=60 days) * PV stenosis (assessed at \<=60 days) * Stroke/CVA * Thromboembolism * TIA * Vagal nerve injury/gastroparesis

    7 days (unless otherwise specified)

Secondary Outcomes (2)

  • Secondary Effectiveness Endpoint - Chronic Durability

    90 days

  • Secondary Effectiveness Endpoint - 12-Month Freedom from Atrial Arrhythmia

    12 months

Study Arms (1)

Treatment Arm

EXPERIMENTAL

The treatment arm will undergo catheter ablation for symptomatic paroxysmal atrial fibrillation with the OptiShot Pulsed Field Ablation (PFA) Balloon System

Device: pulsed field ablation

Interventions

Pulsed field ablation using a ultra-compliant endoscopic PFA balloon.

Treatment Arm

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Recurrent symptomatic PAF with at least one documented episode
  • Failure or intolerance of at least one AAD
  • Age 18-75 years
  • Patient is indicated for an ablation procedure according to society guidelines or study site practice
  • Patient is willing and able to give informed consent/participate in baseline and follow-up assessments for the duration of the study

You may not qualify if:

  • overall good health as established by multiple criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Na Homolce Hospital

Prague, Czech Republic, Czechia

RECRUITING

MeSH Terms

Conditions

Atrial Fibrillation

Condition Hierarchy (Ancestors)

Arrhythmias, CardiacHeart DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Central Study Contacts

Vikramaditya Mediratta, MS

CONTACT

Lisa Hausmann, MPH

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: OptiShot PFA Balloon System
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 4, 2025

First Posted

February 17, 2025

Study Start

December 12, 2024

Primary Completion

March 31, 2026

Study Completion (Estimated)

May 31, 2026

Last Updated

October 7, 2025

Record last verified: 2025-10

Data Sharing

IPD Sharing
Will not share

Locations