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Clinical Studies

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PFO closure has been extensively studied

There are several randomized controlled trials studying PFO closure devices, including the RESPECT trial for the Amplatzer PFO Occluder. These trials were designed and conducted to compare PFO closure to medical management to see if there was a greater benefit to patients to have their PFO closed to prevent another stroke.

Read on to learn more.

The RESPECT trial¹

Device Used: Amplatzer™ PFO Occluder

Number of patients: 980

Timeframe: Median 5.9 years follow-up

Key result: Lower rate of stroke recurrence with the Amplatzer PFO Occluder plus medication* than medication alone.

*Antithrombotic medication (antiplatelets or anticoagulants).

Read an overview of the study Read the published study

Amplatzer™ PFO Occluder and Amplatzer™ Talisman™ PFO Occluder post approval study (PFO PAS)

Abbott continues to collect data on our PFO closure devices. In fact, enrollment for a large study is currently underway. Talk to your doctor to find out if you are eligible to participate.

Devices Used: Amplatzer™ PFO Occluder and Amplatzer™ Talisman™ PFO Occluder

Number of patients needed: 1,214

Long-term follow up: 5 years after receiving the device.

Read more about this study
  1. Saver JL, Carroll JD, Thaler DE, et al. Long-term outcomes of patent foramen ovale closure or medical therapy after stroke. N Engl J Med. 2017;377:1022-32.
MAT-2002553 v4.0 | Item approved for U.S. use only.

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If you or a loved one have a PFO and have experienced a stroke, we have resources you may find helpful.

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