Follow-up Study to Monitor the Efficacy and Safety of the Occlutech® mVSD Cases

NCT ID: NCT05329350

Last Updated: 2026-02-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

50 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-03-03

Study Completion Date

2029-10-01

Brief Summary

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The Occlutech® mVSD is indicated for percutaneous occlusion of hemodynamically or clinically significant muscular ventricular septal defects.

The objectives of the study are:

* To confirm the efficacy of Occlutech mVSD in patients requiring transcatheter occlusion (closure) of muscular ventricular septal defects.
* To confirm the safety of Occlutech mVSD in patients requiring transcatheter occlusion (closure) of muscular ventricular septal defects.

Detailed Description

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This is a multicenter, prospective, and retrospective, international, post-market clinical follow-up Study to monitor the efficacy and safety of the Occlutech mVSD in patients with muscular ventricular septal defects.

Safety and efficacy of implanted devices are assessed by echocardiography, vital signs, laboratory tests, and ECGs on Day 1 (within 48 hours post-procedure), follow-up 1 (between Day 30 and Day 60), follow-up 2 at 6 months (from Day 61 until 6 months), follow-up 3 at 1 year (from 6 months until 1 year), and follow-up 4 at 3 years (from 1 year until 3 years).

* Patients will be screened to determine eligibility for the registry based on inclusion/exclusion criteria, through their medical history, demographics, vital signs, clinical laboratory tests, performance of a 12 lead electrocardiogram (ECG) and echocardiography data.
* Participants are treated according to the instructions-for-use (IFU) of the device and according to clinical routine.
* Procedures are performed at sites having appropriate laboratory support and adequately trained imaging personnel. The procedure is performed by physicians with experience in a wide range of interventional cardiology and structural heart disease, including transcatheter patent ductus arteriosus, atrial septal defect, and ventricular septal defect (VSD) closures.

Recruitment will be open until 50 Patients have been enrolled. The primary safety endpoint is defined as the incidence of Serious Adverse Device Effects (SADEs) including procedure-related death, procedure-related stroke, ischemic stroke, systemic embolism, severe hemolysis, complete heart block requiring pacemaker implantation or device explanation, new onset of severe tricuspid regurgitation (TR), new the onset of severe aortic regurgitation (AR), severe right-left ventricular outflow obstruction (RVOTO-LVOTO), device embolization, cardiac tamponade, infective endocarditis, or vascular complications requiring open heart surgery up to 1 year after the mVSD closure procedure.

The primary efficacy endpoints will include data obtained 1 year after the mVSD closure procedure for successful implantation of the device with a proper closure of the mVSD (defined as the reduction in muscular ventricular septal shunt to trivial or no shunt at all, as assessed by echocardiography pre- vs post-implantation).

Conditions

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Muscular Ventricular Septal Defect

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

PROSPECTIVE

Study Groups

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muscular ventricular septal defects

patients with muscular ventricular septal defects

Occlutech muscular ventricular septal defect (mVSD) Occluder

Intervention Type DEVICE

Percutaneous, transcatheter (catheter-based) non-surgical closure of a muscular ventricular septal defect (mVSD) using the Occlutech mVSD Occluder. The device is a self-expandable nitinol wire-mesh occluder with two retention discs connected by a flexible waist and incorporates polyester/PET patches to support defect occlusion and tissue ingrowth. Implantation is performed by experienced operators in a specialized cath lab according to the IFU and local routine; device sizing/selection is guided by imaging (e.g., transthoracic echocardiography, angiography, fluoroscopy). The system is deployed using compatible Occlutech delivery accessories (e.g., Occlutech Pistol Pusher and Occlutech Delivery Set \[ODS v1 or ODS III\], as applicable).

Interventions

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Occlutech muscular ventricular septal defect (mVSD) Occluder

Percutaneous, transcatheter (catheter-based) non-surgical closure of a muscular ventricular septal defect (mVSD) using the Occlutech mVSD Occluder. The device is a self-expandable nitinol wire-mesh occluder with two retention discs connected by a flexible waist and incorporates polyester/PET patches to support defect occlusion and tissue ingrowth. Implantation is performed by experienced operators in a specialized cath lab according to the IFU and local routine; device sizing/selection is guided by imaging (e.g., transthoracic echocardiography, angiography, fluoroscopy). The system is deployed using compatible Occlutech delivery accessories (e.g., Occlutech Pistol Pusher and Occlutech Delivery Set \[ODS v1 or ODS III\], as applicable).

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* A participant will be eligible for study participation if he/she meets the indication and area of application as laid down in the IFU. The Occlutech mVSD is indicated for percutaneous occlusion of hemodynamically or clinically significant muscular ventricular septal defects.
* Any age
* Male or female.
* Patients understand the nature of the study and provide their informed consent to participation.
* Patients willing and able to attend the follow-up visits and procedures foreseen by study CIP.

Contraindication

* Hemodynamically relevant VSD shunt
* Congestive heart insufficiency
* Recurrent respiratory infections
* Failure to thrive.
* Significant left ventricle (LV) enlargement
* Significant left atrium (LA) enlargement
* Other clinical indication

Exclusion Criteria

The device is contraindicated for participants known to have any of the following:

⦁Active bacterial infections

* Active infection at the time of implantation
* Allergy to antiplatelet or anticoagulant therapy
* Allergy to nickel and/or titanium and/or nickel/titanium-based materials
* Any type of serious infection 1 month before the procedure
* The aortic rim of less than 2 mm
* Demonstrated intracardiac thrombi on echocardiography
* Malignancy where life expectancy is less than 3 years
* mVSD diameter \> 20 mm
* Perimembranous VSD

Post-MI VSD

* Recent myocardial infarction or a surgical bypass operation in the last 30 days
* Sepsis (local or generalized)
* Septal thickness \> 7 mm in the area of the Occluder placement
Minimum Eligible Age

3 Months

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Occlutech International AB

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Children's Health Ireland

Dublin, , Ireland

Site Status NOT_YET_RECRUITING

İzmir Şehir Hastanesi

Izmir, Bayraklı, Turkey (Türkiye)

Site Status NOT_YET_RECRUITING

Eskişehir Osmangazi Üniversite Hastanesi

Eskişehir, Odunpazarı, Turkey (Türkiye)

Site Status NOT_YET_RECRUITING

Dicle Üniversitesi Tıp Fakültesi Hastanesi

Diyarbakır, Sur, Turkey (Türkiye)

Site Status NOT_YET_RECRUITING

Gaziantep Unıversıty Hospital

Gaziantep, Şehitkamil, Turkey (Türkiye)

Site Status RECRUITING

Countries

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Ireland Turkey (Türkiye)

Central Contacts

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Ahmed Della

Role: CONTACT

+49 151 14139961

Facility Contacts

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Damien Kenny, MD

Role: primary

00353 85 757 85 56

Claire Josephine Karungi Betz, SC

Role: backup

Nazmi Narin, MD

Role: primary

+90 533 770 64 94

Kumru Bademci, SC

Role: backup

+90 539 895 96 25

Birsen Uçar, MD

Role: primary

+90 506 397 85 85

Çiçek Kır, SC

Role: backup

+90 531 6974619

Alper Akın, MD

Role: primary

+90 542 256 06 01

Merve Demirtaş, SC

Role: backup

+90 549 6101287

Osman Başpınar, MD

Role: primary

+90 532 345 54 77

Other Identifiers

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Occ2016_07

Identifier Type: -

Identifier Source: org_study_id

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