An observational study in Patent Ductus Arteriosus, sponsored by Occlutech International AB. Recruiting at 15 sites in 9 countries. Per ClinicalTrials.gov, last updated 2026-08-12.
Sponsored by Occlutech International AB · Observational
This retrospective and prospective, multicenter, international post marketing follow up study evaluates the safety and efficacy of the Occlutech® PDA Occluder, delivered using the Occlutech Occlusions Pusher (OOP), in subjects with patent ductus arteriosus (PDA) defects. Safety and efficacy assessments include vital signs, electrocardiograms, and echocardiographic evaluations performed at baseline/implantation (including assessments within 36 hours post procedure), as well as at follow up visits occurring between Day 30 and Day 90, 6 months to 1 year, 1 to 2 years, and 2 to 3 years after implantation.
The Occlutech® PDA Occluder is an occlusion system designed for the percutaneous, catheter based, non surgical closure of Patent Ductus Arteriosus (PDA), and is delivered using the Occlutech Occlusions Pusher (OOP) and Occlutech Delivery Set (ODS), which are recommended as compatible delivery systems. This post marketing clinical follow up study aims to evaluate the safety and efficacy of the Occlutech® PDA Occluder in subjects with PDA. The study is designed as a retrospective and prospective, multicenter, international investigation in which safety and efficacy will be assessed through vital signs, electrocardiography, and echocardiography at baseline/implantation (including assessments performed within 36 hours post procedure), followed by evaluations at Day 30 to Day 90, 6 months to 1 year, 1 to 2 years, and 2 to 3 years after implantation. A total of 217 evaluable subjects is required to estimate a proportion of ≤10% (or ≥90%) with a precision of 4% at an alpha level of 5%, corresponding to a two sided 95% confidence interval width of ≤8%. To account for an anticipated maximum drop out rate of 15%, a total of 255 subjects will be enrolled. Approximately 90% of enrolled participants are expected to be children aged 0-10 years. The primary objective of this study is to assess the safety of the Occlutech® PDA Occluder in subjects requiring transcatheter PDA closure, while the secondary objective is to evaluate the device's efficacy in achieving successful occlusion of the PDA
146 studies on the registry are indexed under Ductus Arteriosus, Patent; 21 are open to participants now.
This study's planned enrollment of 255 is above the median of 81 across 56 observational studies indexed under Ductus Arteriosus, Patent.
Browse Ductus Arteriosus, Patent studies →Occlutech International AB is the lead sponsor of 17 studies on the registry; 7 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Full Analysis Set (safety): All patients intended to be treated with PDA Full Analysis Set (efficacy): All patients with implanted PDA
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
as laid down in the IFU:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Non-surgical occlusion of Patent Ductus Arteriosus (PDA).
Safety primary endpoint
The primary safety endpoint is defined as the incidence of any Serious Adverse Device Effects (SADEs) including procedure-related death, procedure-related stroke, systemic embolism, severe hemolysis, device embolization, cardiac tamponade, infective endocarditis, or vascular complications requiring surgery up to 1-year post-implantation.
Time frame: 1 year
Efficacy primary endpoint
The primary efficacy endpoint is defined as successful implantation of the Occlutech® PDA Occluder with a complete closure of the PDA (defined as \>90% PDA closure represented by no or small residual flow) as assessed by echocardiography post-implantation) within 2-year post- implantation follow-up.
Time frame: 2 years
Safety secondary endpoint
Secondary safety endpoints will assess all minor complications such as transient hemolysis, vascular complications not requiring surgery, or all minor complications which are deemed relevant at the discretion of each investigator. Additionally, an assessment of all Serious Adverse Events (SAE) will be included in the analyses.
Time frame: 3 years
Efficacy secondary endpoint
Secondary efficacy assessments refer to the variation in the data from baseline to 3 years after the procedure in parameters such as, but not limited to, aortic blood pressure, pulse rate, LVFS, pulmonary artery pressure, and ECG records.
Time frame: 3 years
Started Dec 2021 (actual). Primary completion is estimated for Oct 2029, 94 months after the start.
Of 22 observational studies under Ductus Arteriosus, Patent, half reached primary completion within 48 months of starting (the median), counting those still running; a quarter within 26 and three quarters within 65. This study's planned 94 months is above that.
How these figures are worked out, and which studies are left out of them.
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Occlutech International AB