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Freezing out AFib: new device tested in Real-World study

NCT ID NCT05282823

Completed Disease control Sponsor: Boston Scientific Corporation Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at how safe and effective a freezing treatment (cryoablation) is for people with a type of irregular heartbeat called paroxysmal atrial fibrillation (AFib). The treatment uses a device called POLARx to freeze heart tissue and stop the faulty signals causing AFib. 295 patients took part, and researchers tracked any side effects and whether the heartbeat stayed normal for up to a year.

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Conditions

The condition(s) this trial relates to.

atrial fibrillation paroxysmal atrial fibrillation

As listed by the trial registrant

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

PAROXYSMAL ATRIAL FIBRILLATION

Contacts and locations

Locations

  • Chiba University Hospital

    Chiba, Chiba, 260-8677, Japan

  • Hamamatsu University Hospital

    Hamamatsu, Shizuoka, 431-3192, Japan

  • Hirosaki University Hospital

    Hirosaki-shi, Aomori, 036-8563, Japan

  • Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital

    Nagoya, Aichi-ken, 466-8650, Japan

  • Kobe City Medical Center General Hospital

    Kobe, Japan

  • Kobe University Hospital

    Kobe, Japan

  • Kokura Memorial Hospital

    Kitakyushu-shi, Fukuoka, 802-8555, Japan

  • Konkuk University Medical Center

    Seoul, 05030, South Korea

  • Kyoto University Hospital

    Kyoto, Kyoto, 606-8507, Japan

  • Medical Hospital, Tokyo Medical and Dental University

    Bunkyo-ku, Tokyo, 113-8519, Japan

  • Miyazaki Medical Association Hospital

    Miyazaki, Miyazaki, 880-2102, Japan

  • National Cerebral and Cardiovascular Center Hospital

    Suita-shi, Osaka, 564-8565, Japan

  • National Hospital Organization Disaster Medical Center

    Tachikawa-shi, Tokyo, 190-0014, Japan

  • Saitama Red Cross Hospital

    Saitama, Saitama, 330-8553, Japan

  • Sakakibara Heart Institute

    Fuchu-shi, Tokyo, 183-0003, Japan

  • Samsung Medical Center

    Seoul, 06351, South Korea

  • Shonan Kamakura General Hospital

    Kamakura-shi, Kanagawa, 247-0072, Japan

  • Yokohama City Minato Red Cross Hospital

    Yokohama, Kanagawa, 231-8682, Japan

  • Yokosuka Kyosai Hospital

    Yokosuka-shi, Kanagawa, 238-8558, Japan

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