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OpenTrials
Completed

NCT Number: NCT04196335

I Can sEe Left Atrial Appendage (ICELAA) Clinical Study

The primary objective of this study is to assess the efficacy and safety of using intra-procedural intracardiac echocardiography (ICE) for WATCHMAN FLX Device implants in subjects with non-valvular atrial fibrillation to reduce the risk of stroke.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Aarhus Universitetshospital, Skejby, Denmark

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Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • The subject is of legal age to participate in the study per the laws of their respective geography;
  • The subject has documented paroxysmal, persistent, permanent or long-term/longstanding persistent non-valvular atrial fibrillation (i.e., the subject does not have mitral stenosis or a mechanical heart valve);the subject has not been diagnosed with rheumatic mitral valvular heart disease);
  • The subject is deemed by the treating physician to be suitable for the protocol defined pharmacologic regimens;
  • The subject has a calculated CHA2DS2-VASc score of 2 or greater;
  • The subject is able to undergo ICE examinations;The subject is able to undergo ICE(which will be used during the index procedure) and TEE (which will be performed at 45 days and may also be performed at baseline);
  • The subject is able to understand and willing to provide written informed consent to participate in the trial;
  • The subject is able and willing to return for required follow-up visits and examinations.

Exclusion criteria

  • Subjects who are currently enrolled in another investigational study or registry that would directly interfere with the current study, except when the subject is participating in a mandatory governmental registry, or a purely observational registry with no associated treatments. Each instance must be brought to the attention of the sponsor to determine eligibility, regardless of type of co-enrollment being proposed;
  • The subject requires long-term anticoagulation therapy for reasons other than AF-related stroke risk reduction, for example due to an underlying hypercoaguable state (i.e., even if the device is implanted, the subjects would not be eligible to discontinue OAC due to other medical conditions requiring chronic warfarin therapy);
  • The subject has a history of atrial septal repair or has an ASD/PFO device;
  • The subject has an implanted mechanical valve prosthesis in any position;
  • The subject currently or has had any documented history of, New York Heart Association Class IV Congestive Heart Failure;
  • The subject is of childbearing potential and is or plans to become pregnant during the time of the study (method of assessment upon study physician's discretion).

Treatment and study plan

intra-procedural intracardiac echocardiography

Device

use of intra-procedural intracardiac echocardiography during Watchman FLX devices

Other names: Watchman FLX Device

Primary outcomes

  1. Rate of Device Leak

    Time frame: 45 days

    Rate of significant leak (>5 mm) as assessed by TEE at 45 days' post-implant.

Sponsors and collaborators

Lead sponsor

Boston Scientific Corporation

Industry

Registry information

Acronym: ICELAA

Important dates

Study start
2020
Primary completion
2021
Study completion
2021
First posted
Dec 12, 2019
Registry last updated
Jun 18, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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