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NCT Number: NCT07532369

Occlutech AFR Fontan Study

The goal of this observational clinical study look at the safety and effectiveness of the Occlutech Atrial Flow Regulator in the treatment of patients with failing Fontan circulation. This study will consist of a case series of congenital patients with Fontan failure who have been treated with an Occlutech AFR under the FDA's Expanded Access process.

The scope of this study is to gain clinical experience on the Occlutech AFR in Fontan failure patients. Cases in this study will be evaluated to evaluate the safety and effectiveness of the device.

The objective of this study is to evaluate the Occlutech AFR with respect to device safety and shunt patency at 1 year. Shunt patency defined by persistent right to left shunt assessed by echocardiography at 1-year post-procedure.

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Key information

Sex eligibility

All sexes

Study type

Observational

Primary location

University of Alabama, Birmingham, Alabama, United States

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About this study

The Occlutech AFR Fontan Study is a single arm, observational, multicenter clinical investigation of the Occlutech Atrial Flow Regulator investigational device.

This is a retrospective, non-interventional, observational study that utilizes existing clinical data previously collected during standard patient care. No new procedures or treatments will be administered as part of this study.

This study will comprise a case series of congenital patients with Fontan failure who have been treated with an Occlutech AFR. The scope of this study is to gain clinical experience on the Occlutech AFR in Fontan failure patients. Cases in this study will be assessed to evaluate the safety and effectiveness of the device in a real-life scenario.

Sites will be selected in the U.S. that had previously attempted expanded access cases with the Occlutech AFR for Fontan failure. Data will be collected retrospectively up to a site-specific cut-off date, which will be either the date of IRB submission or IRB approval, per site IRB policy. The requirement for informed consent and HIPAA authorization will be determined by each IRB in accordance with applicable policies; waivers may be obtained where permissible. It is anticipated that 7 sites will be initiated for the study, and data from approximately 25 patients will be included.

Data will be descriptively compared to those available in the literature describing interventions on Fontan to modulate fenestration size.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • The patient has been treated with an AFR device (attempted or successful) for failing Fontan through the Expanded Access Program of the Food and Drug Administration (FDA).
  • The candidate/candidate's legal guardian has been informed of the nature of the study, agrees to its provisions and has provided written informed consent unless the site's IRB provided a waiver of consent.

Exclusion criteria

  • If a subject does not meet the eligibility criteria, they will be considered a Screen Failure and cannot be included

Treatment and study plan

Occlutech Atrial Flow Regulator Retrospective Data Collection

Device

None, retrospective data collection only

Primary outcomes

  1. Primary Effectiveness Endpoint

    Time frame: 1 year

    Shunt patency defined by persistent right to left shunt assessed by echocardiography at 1-year post-procedure.

Other outcomes

  1. Primary Safety Assessment

    Time frame: 30 days

    The primary safety assessment is serious device or procedure related adverse events (SADEs), including peri-procedural SAEs assessed through 30 days post-procedure.

Study contacts

Contact information is provided by the study sponsor or research team.

Diana Ekholm

CONTACT

[email protected]

1-805-338-3543

Ramona Ruble

CONTACT

[email protected]

1-612-644-9990

Sponsors and collaborators

Lead sponsor

Occlutech International AB

Industry

Registry information

Official study title

Clinical Experience With the Occlutech Atrial Flow Regulator (Occlutech AFR) in a Failing Fontan Population

Important dates

Study start
2026
Primary completion
2026
Study completion
2026
First posted
Apr 15, 2026
Registry last updated
Apr 15, 2026

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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