New study tests best way to prevent second stroke in seniors with a hole in the heart

NCT ID NCT07479147

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks at two ways to prevent another stroke in older adults who have a hole in the heart (PFO) and had a stroke from an unknown cause. One option is a procedure to close the hole, plus lifelong blood thinners. The other is taking blood thinners alone. Researchers will track which group has fewer repeat strokes or mini-strokes over several years. The study includes both new patients and data from past years.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
PFO closure device (Amplatzer occluder) and/or blood thinners (DOAC or antiplatelet)
What this could lead to
If successful, this could show that PFO closure is a safe and effective option for preventing another stroke in older adults, potentially changing treatment guidelines.
What could go wrong
This is an observational study, not a randomized trial, so results may be less definitive. The study is still recruiting and won't finish until 2031. Risks include bleeding from blood thinners or complications from the closure procedure.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • National Taiwan University Hospital

    RECRUITING

    Taipei, 100, Taiwan

  • Taichung Veterans General Hospital

    RECRUITING

    Taichung, 40705, Taiwan

  • Taipei Veterans General Hospital

    RECRUITING

    Taipei, 100, Taiwan

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