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

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age3-80
SponsorOcclutech International AB

About this trial

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.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

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.

Disqualifiers

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

Trial population

Male and female patients of any age with a hemodynamically or clinically significant muscular ventricular septal defect (mVSD) who are candidates for non-surgical closure with the Occlutech mVSD Occluder in routine clinical practice (predominantly pediatric patients). Eligibility is confirmed based on protocol-defined inclusion/exclusion criteria and baseline clinical assessment, including medical history, demographics, vital signs, ECG and echocardiography; laboratory tests may be performed according to local standard of care.

Trial design

Design model

Case-only

Time perspective

Prospective

Treatments tested in this trial

  • Occlutech muscular ventricular septal defect (mVSD) Occluder

    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).

Treatment groups

50 Participants
are divided into 1 treatment group
Group A: muscular ventricular septal defects1 intervention

Trial outcomes

Primary outcomes

1

Percentage of Participants With at Least One Serious Adverse Device Effect (SADE) Within 12 Months After Occlutech mVSD Implantation

Serious Adverse Device Effects (SADEs) include procedure-related death, stroke, systemic embolism, severe hemolysis, complete heart block requiring pacemaker implantation or device explantation, severe tricuspid regurgitation (TR), severe aortic regurgitation (AR), right ventricular outflow tract obstruction (RVOTO), left ventricular outflow tract obstruction (LVOTO), device embolization, cardiac tamponade, infective endocarditis, or vascular complications requiring open-heart surgery.

Time frame
Up to 12 months post-procedure
2

Percentage of Participants With Successful Device Implantation and Trivial or No Residual Ventricular Septal Shunt at 12 Months

Successful implantation of the Occlutech mVSD Occluder with effective closure defined as reduction of the muscular ventricular septal shunt to trivial or no residual shunt, as assessed by echocardiography.

Time frame
12 months post-procedure

Secondary outcomes

1

Percentage of Participants With at Least One Serious Adverse Device Effect (SADE) Between 1 and 3 Years After Occlutech mVSD Implantation

Incidence of Serious Adverse Device Effects (SADEs) occurring more than 1 year and up to 3 years after the procedure, including procedure-related death, stroke, systemic embolism, severe hemolysis, complete heart block requiring pacemaker implantation or device explantation, severe TR, severe AR, RVOTO, LVOTO, device embolization, cardiac tamponade, infective endocarditis, or vascular complications requiring open-heart surgery.

Time frame
1 year to 3 years post-procedure
2

Percentage of Participants With Minor Complications, Including Transient Hemolysis and Non-Surgical Vascular Complications, Up to 3 Years

Minor complications include transient hemolysis, vascular complications not requiring surgery, and other clinically relevant minor complications as assessed by the investigator.

Time frame
Up to 3 years post-procedure

Other outcomes

Sponsors and contacts

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