The Effect of Device Closure of Patent Foramen Ovale in Elderly Patients

Status Terminated

Clinical Trial Summary

The primary objective is to evaluate if patent foramen ovale (PFO) closure and antiplatelet medical management can reduce the risk of recurrent stroke or transient ischemic attack (TIA) when compared to antiplatelet medical management alone in elderly patients above 50 years of age with a PFO and a history of cryptogenic stroke or TIA.

Clinical Trial Description

Prior to birth the fetal heart has a connection between the two atrias of the heart. After labour this connection often closes. About 10-15 % these connections remains open. This phenomenon is called patent foramen ovale or PFO, and is in most cases unsymptomatic.

The prevalence of PFO in patients with crytogenic (without known causes) stroke is much higher (about 40%)than the general population (about 10%). This has led to the theory that the presence of PFO can lead to stroke, by the passage of emboli from the peripheral venous circulation through the PFO to the brain by right-to-left shunting of the blood.

There are no existing data from prospective randomized studies focusing on the effect of device closure PFO in patients with cryptogenic stroke. Some observational retrospective studies have shown a beneficial effect in the reduction of recurrent stoke in patients younger that 50 years with cryptogenic stroke when PFO has been closed with a percutaneous device closure(PCD). Some studies have reported an 0% to 3.4% annual recurrence rate of stroke or TIA in patients treated with PDC. The recurrence rate of stroke or TIA in patients with crytogenic stroke or TIA in ordinary antithrombotic treatment is about 5-15 %.

The primary objective of this study is to assess whether percutaneous device closure of patent foramen ovale is superior to conventional antithrombotic treatment in preventing stroke recurrence in elderly patients above 50 years of age. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01018355
Study type	Interventional
Source	Hillerod Hospital, Denmark
Contact
Status	Terminated
Phase	N/A
Start date	October 2009
Completion date	June 2015

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

The Effect of Device Closure of Patent Foramen Ovale in Elderly Patients With Crytogenic Stoke/TCI — CryptoCard

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms