Medical Treatment With or Without Transcatheter Patent Foramen Ovale Closure

NCT ID: NCT05907694

Last Updated: 2023-12-22

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

ACTIVE_NOT_RECRUITING

Clinical Phase

NA

Total Enrollment

714 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-12-01

Study Completion Date

2036-10-01

Brief Summary

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Patent foramen ovale PFO closure has been shown to reduce the risk of stroke in patients with recurrent stroke. However, the majority of existing clinical studies in this field excluded patients over the age of 60 years. Data in older patients is limited and since the population ages and stroke remains a major cause of death and morbidity, randomized clinical trials are needed to better assess the benefit of PFO closure in this elderly population. Therefore, this study proposal sought to determine the efficacy of PFO closure for the prevention of recurrent stroke in older patients with PFO and cryptogenic stroke.

Detailed Description

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Background and importance Consistent with studies performed in younger patient cohorts, older patients suffering a cryptogenic stroke exhibit a much higher prevalence of patent foramen ovale (PFO) compared to their stroke of known origin counterparts. Several studies have provided promising preliminary data regarding PFO closure in older patients with cryptogenic stroke, with very low stroke recurrence rates at mid- to long-term follow-up. Several randomized trials have shown the beneficial effects of PFO closure vs. medical treatment in patients younger than 60 years with cryptogenic stroke and PFO. Current observational data suggest similar or even more marked effects on stroke recurrence prevention of PFO closure in older patients and would support the design of a randomized trial to provide definite evidence in this field. Therefore, the objective of the present study is to evaluate the efficacy of transcatheter PFO closure for preventing recurrent ischemic stroke (nonlacunar) events in patients \>60 years diagnosed with a cryptogenic stroke and PFO.

Conditions

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Patent Foramen Ovale Cryptogenic Stroke Older Patients Medical Treatment Recurrent Stroke

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Randomized controlled trial comparing transcatheter PFO closure + medical treatment vs. medical treatment alone.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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transcatheter PFO closure + optimal medical treatment

Patients will undergoes transcatheter PFO closure (+ optimal medical treatment). Patients will receive antithrombotic agents (single antiplatelet treatment ), and modifiable vascular risk factors (dyslipidemia, hypertension, diabetes) according to stroke prevention guidelines. The type of antithrombotic therapy will be left to the discretion of the physician responsible for the patient.

Group Type EXPERIMENTAL

Transcatheter PFO closure

Intervention Type PROCEDURE

Transcatheter PFO closure procedure will be performed according to the standards and experience of each participating center. Any approved PFO occluder device will be allowed in the study.

Patients will also receive antithrombotic agents (single antiplatelet treatment ), and modifiable vascular risk factors (dyslipidemia, hypertension, diabetes) according to stroke prevention guidelines. The type of antithrombotic therapy will be left to the discretion of the physician responsible for the patient.

Optimal medical treatment

Intervention Type DRUG

Patients will receive antithrombotic agents (single antiplatelet treatment ), and modifiable vascular risk factors (dyslipidemia, hypertension, diabetes) according to stroke prevention guidelines. The type of antithrombotic therapy will be left to the discretion of the physician responsible for the patient.

Optimal medical treatment

Patients will receive antithrombotic agents (single antiplatelet treatment ), and modifiable vascular risk factors (dyslipidemia, hypertension, diabetes) according to stroke prevention guidelines. The type of antithrombotic therapy will be left to the discretion of the physician responsible for the patient.

Group Type EXPERIMENTAL

Optimal medical treatment

Intervention Type DRUG

Patients will receive antithrombotic agents (single antiplatelet treatment ), and modifiable vascular risk factors (dyslipidemia, hypertension, diabetes) according to stroke prevention guidelines. The type of antithrombotic therapy will be left to the discretion of the physician responsible for the patient.

Interventions

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Transcatheter PFO closure

Transcatheter PFO closure procedure will be performed according to the standards and experience of each participating center. Any approved PFO occluder device will be allowed in the study.

Patients will also receive antithrombotic agents (single antiplatelet treatment ), and modifiable vascular risk factors (dyslipidemia, hypertension, diabetes) according to stroke prevention guidelines. The type of antithrombotic therapy will be left to the discretion of the physician responsible for the patient.

Intervention Type PROCEDURE

Optimal medical treatment

Patients will receive antithrombotic agents (single antiplatelet treatment ), and modifiable vascular risk factors (dyslipidemia, hypertension, diabetes) according to stroke prevention guidelines. The type of antithrombotic therapy will be left to the discretion of the physician responsible for the patient.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Cryptogenic stroke
* Age \>60 years
* Right-to-left shunt as evaluated by echocardiography (TEE).

Exclusion Criteria

-≤60 year-old

* Lacunar (small vessel) stroke.
* Permanent or paroxysmal atrial fibrillation/flutter (clinically apparent or detected by continuous ECG monitoring).
* Need for chronic anticoagulation therapy.
* Any contraindication for antiplatelet therapy (aspirin, clopidogrel, ticagrelor).
* Presence of extracranial or intracranial atherosclerosis causing ≥50% luminal --stenosis in arteries supplying the area of ischemia.
* Presence of complex atheroma plaques at the ascending aorta-aortic arch (≥4-mm-thick, ulcerated or containing mobile thrombi) as evaluated by TEE.
* Presence of intracardiac thrombus as evaluated by TEE.
* Uncontrolled hypertension (systemic pressure values \>160/90 mmHg despite optimal medical treatment).
* History of myocardial infarction or coronary intervention. (percutaneous coronary intervention, coronary artery bypass graft).
* History of prior valve surgery or transcatheter valve repair.
* Presence of deep venous thrombosis at the time of index stroke as evaluated by Doppler ultrasonography.
* Left ventricular ejection fraction \<50% as evaluated by TTE.
* Significant (moderate or severe) valvular disease as evaluated by echocardiography.
* History of congestive heart failure.
* Severe chronic kidney dysfunction defined an estimated glomerular filtration rate \<30 ml/min/m2 or need for dialysis.
* Isolated ASD or ASD associated with PFO but with a hemodynamically significant left-to-right shunt requiring closure.
* Other specific cause of stroke identified (eg, arteritis, dissection, migraine/vasospasm, and drug abuse).
* Prior surgical or endovascular treatments of PFO or ASD.
* Rheumatic heart disease.
* Left atrial enlargement defined as a left atrial diameter \>41 mm in men and ≥39 mm in women.
* Presence of high burden of premature atrial contractions (\>500 per 24 hrs) as evaluated by continuous ECG monitoring.
* Follow-up impossible or expected poor compliance.
* Active cancer.
* Presence of an inferior vena cava filter.
* Severe pulmonary artery hypertension (systolic pulmonary pressure \>60 mmHg).
* Functional dependency as measured by a modified Rankin Scale score \>3 (unable to attend to own bodily needs without assistance and unable to walk unassisted).
* Any medical condition determining a life expectancy \<2 years.
* Participation in another randomized study.
* Failure to provide signed informed consent.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Josep Rodes-Cabau

OTHER

Sponsor Role lead

Responsible Party

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Josep Rodes-Cabau

Principal Investigator

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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IUCPQ Rodes-Cabau, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Fondation IUCPQ

Locations

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IUCPQ-UL

Québec, Quebec, Canada

Site Status

Countries

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Canada

References

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Other Identifiers

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STOP

Identifier Type: -

Identifier Source: org_study_id