NCT07450755

Brief Summary

A multicenter, prospective registry of concomitant Farapulse (Boston scientific) based PVI and Watchman Flx device (Boston scientific) based LAAC procedures was planned in order to assess the acute and mid-time safety, efficacy and efficiency of this approach (COCONUT II study). If available the transseptal puncture will be performed by the VersaCross System (Boston scientific). If already available LAAC procedure will be performed utilizing the Watchman Flx pro device (Boston scientific) or the Watchman Flx device (Boston scientific). For procedure planning, assessment of the LAA size and selection of the Watchman Flx device a preprocedural cardiac computed tomography in combination with the TruePLan Software is recommended.

Trial Health

65
Monitor

Trial Health Score

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

Enrollment
150

participants targeted

Target at P75+ for not_applicable

Timeline
20mo left

Started Mar 2026

Typical duration for not_applicable

Status
not yet recruiting

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress10%
Mar 2026Dec 2027

First Submitted

Initial submission to the registry

February 17, 2026

Completed
12 days until next milestone

Study Start

First participant enrolled

March 1, 2026

Completed
4 days until next milestone

First Posted

Study publicly available on registry

March 5, 2026

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2026

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2027

Last Updated

March 12, 2026

Status Verified

March 1, 2026

Enrollment Period

10 months

First QC Date

February 17, 2026

Last Update Submit

March 11, 2026

Conditions

Keywords

Catheter ablationPulsed field ablationLAAClosure

Outcome Measures

Primary Outcomes (3)

  • • Primary safety endpoint: Major complications, (SAE) within 30 days

    30 days

  • • Primary efficacy endpoint: Acute success of PVI and LAA closure

    30 days

  • • Primary efficiency endpoint: Duration of hospital stay (nights) within 30 days

    30 days

Study Arms (1)

Concomitant PVI plus LAAC

EXPERIMENTAL
Procedure: Interventional LAA ClosureProcedure: Pulmonary vein isolation

Interventions

LAA Closure to prevent stroke and bleeding

Concomitant PVI plus LAAC

Pulmonary vein isolation for atrial firbrillation treatment

Concomitant PVI plus LAAC

Eligibility Criteria

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

You may qualify if:

  • Age ≥ 18 years
  • Willing to participate
  • Atrial fibrillation and indication for PVI (ESC guideline 2024)
  • Indication for OAC therapy (CHA2DS2VA score \>/=2)

You may not qualify if:

  • Contraindications for PVI and / or LAA closure
  • Pregnancy
  • Previous catheter ablation for AF

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Atrial FibrillationHemorrhageStroke

Condition Hierarchy (Ancestors)

Arrhythmias, CardiacHeart DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and SymptomsCerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular Diseases

Central Study Contacts

Christian-Hendrik Heeger, MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: Retrospective study
Sponsor Type
INDUSTRY
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof. Dr.

Study Record Dates

First Submitted

February 17, 2026

First Posted

March 5, 2026

Study Start

March 1, 2026

Primary Completion (Estimated)

December 31, 2026

Study Completion (Estimated)

December 31, 2027

Last Updated

March 12, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will not share