New stomach drug could shield heart patients from bleeding

NCT ID NCT04416581

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

Summary

This study compares two stomach-acid-lowering drugs—tegoprazan and rabeprazole—in about 3,300 heart disease patients who take blood thinners and are at high risk for stomach bleeding. The goal is to see if tegoprazan works as well as rabeprazole at preventing serious gut problems like bleeding or ulcers over 12 months. Participants will be randomly assigned to take one of the two drugs daily.

What this could mean

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

Active substance

Tegoprazan

What this could lead to

If successful, this could offer a new option to protect the stomach and gut from bleeding in people with heart disease who must take blood thinners.

What could go wrong

This is a non-inferiority trial, meaning it only aims to show tegoprazan is not worse than the standard drug. It may not prove it is better, and results may not apply to all patients.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

acute coronary syndrome atrial fibrillation cerebrovascular disorder coronary artery disorder Gastrointestinal Hemorrhage heart valve disorder myocardial infarction peptic ulcer disease peripheral arterial disease

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Ajou University Hospital

    RECRUITING

    Suwon, South Korea

    Contact

    Contact

  • Asan Medical Center

    RECRUITING

    Seoul, South Korea

    Contact Email: •••••@•••••

    Contact

  • Bucheon Sejong Hospital

    RECRUITING

    Bucheon-si, South Korea

    Contact

    Contact

  • Bundang CHA Hospital

    RECRUITING

    Seongnam, South Korea

    Contact

    Contact

  • Chonnam National University Hospital

    RECRUITING

    Gwangju, South Korea

    Contact

    Contact

  • Chung-Ang University Hospital

    RECRUITING

    Seoul, South Korea

    Contact

    Contact

  • Chungbuk National University Hospital

    RECRUITING

    Cheonju, South Korea

    Contact

    Contact

  • Chungnam National University Hospital

    RECRUITING

    Daejeon, South Korea

    Contact

    Contact

  • Chungnam National University Sejong Hospital

    RECRUITING

    Sejong, South Korea

    Contact

    Contact

  • Dankook University Hospital

    WITHDRAWN

    Cheonan, South Korea

  • Dong-A Medical Center

    RECRUITING

    Pusan, South Korea

    Contact

    Contact

  • Ewha Womans University Medical Center

    WITHDRAWN

    Seoul, South Korea

  • Gangneung Asan Hospital

    RECRUITING

    Gangneung, South Korea

    Contact

    Contact

  • Gangwon National Univ. Hospital

    NOT_YET_RECRUITING

    Chuncheon, South Korea

    Contact

    Contact

  • Gyeongsang National University Changwon Hospital

    WITHDRAWN

    Changwon, South Korea

  • Hallym University Chuncheon Sacred Heart Hospital

    NOT_YET_RECRUITING

    Chuncheon, South Korea

    Contact

    Contact

  • Hallym University Dongtan Sacred Heart Hospital

    RECRUITING

    Hwaseong-si, South Korea

    Contact

    Contact

  • Hallym University Kangnam Sacred Heart Hospital

    RECRUITING

    Seoul, South Korea

    Contact

    Contact

  • Hallym University Sacred Heart Hospital

    RECRUITING

    Anyang, South Korea

    Contact

    Contact

  • Hanyang University Guri Hospital

    RECRUITING

    Guri-si, South Korea

    Contact

    Contact

  • Hanyang University Seoul Hospital

    RECRUITING

    Seoul, South Korea

    Contact

    Contact

  • Inje University Ilsan Paik Hospital

    RECRUITING

    Ilsan, South Korea

    Contact

    Contact

  • Inje University Pusan Paik Hospital

    RECRUITING

    Pusan, South Korea

    Contact

    Contact

  • Jeonbuk National University Hospital

    WITHDRAWN

    Jeonju, South Korea

  • Kangbuk Samsung Hospital

    RECRUITING

    Seoul, South Korea

    Contact

    Contact

  • Keimyung University Dongsan Medical Center

    RECRUITING

    Daegu, South Korea

    Contact

    Contact

  • Korea University Anam Hospital

    RECRUITING

    Seoul, South Korea

    Contact

    Contact

  • Korea University Guro Hospital

    RECRUITING

    Seoul, South Korea

    Contact

    Contact

  • Kosin University Gospel Hospital

    RECRUITING

    Busan, South Korea

    Contact

    Contact

  • Kwangju Christian Hospital

    WITHDRAWN

    Kwangju, South Korea

  • Kyung Hee University Hospital at Gangdong

    RECRUITING

    Seoul, South Korea

    Contact

    Contact

  • Kyung Hee University Medical Center

    RECRUITING

    Seoul, South Korea

    Contact

    Contact

  • Pusan National University Hospital

    RECRUITING

    Pusan, South Korea

    Contact

    Contact

  • Pusan National University Yangsan Hospital

    RECRUITING

    Yangsan, South Korea

    Contact

    Contact

  • SNU Boramae Medical Center

    RECRUITING

    Seoul, South Korea

    Contact

    Contact

  • Seoul National University Hospital

    RECRUITING

    Seoul, South Korea

    Contact

    Contact

  • Seoul university Bundang hospital

    RECRUITING

    Seongnam-si, South Korea

    Contact

    Contact

  • Severance Hospital

    RECRUITING

    Seoul, South Korea

    Contact

    Contact

  • Sungkyunkwan University Samsung Changwon Hospital

    WITHDRAWN

    Changwon, South Korea

  • The Catholic Univ. of Korea Eunpyeong St. Mary's hospital

    RECRUITING

    Seoul, South Korea

    Contact

    Contact

  • The Catholic Univ. of Korea Seoul St. Mary's hospital

    RECRUITING

    Seoul, South Korea

    Contact

    Contact

  • The Catholic University of Korea, ST. Vincent's Hospital

    RECRUITING

    Suwon, South Korea

    Contact

    Contact

  • Ulsan University Hospital

    RECRUITING

    Ulsan, South Korea

    Contact

    Contact

  • Yeungnam University Medical Center

    WITHDRAWN

    Daegu, South Korea

  • Yonsei University Yongin Severance Hospital

    RECRUITING

    Yongin-si, South Korea

    Contact

    Contact