Triple therapy aims to outsmart stomach cancer

NCT ID NCT05144854

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

Summary

This Phase 3 trial tests whether adding two immunotherapy drugs (nivolumab and ipilimumab) to standard chemotherapy helps people with advanced HER2-negative stomach or gastroesophageal junction cancer live longer. About 626 participants who have not had prior chemotherapy will receive either the combo or chemo alone. The study is active but no longer recruiting.

What this could mean

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

Active substance

Nivolumab (Opdivo) and ipilimumab (Yervoy) combined with chemotherapy (oxaliplatin, capecitabine, or S-1)

What this could lead to

If successful, this combination could become a new standard first-line treatment for advanced gastric cancer, potentially extending survival.

What could go wrong

This is an early-stage Phase 3 trial; results may not show a significant benefit over chemo alone. Immune-related side effects from nivolumab and ipilimumab can be severe.

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.

gastric cancer gastric neoplasm gastroesophageal junction adenocarcinoma

As listed by the trial registrant

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

Contacts and locations

Locations

  • Ajou University Hospital

    Suwon, Gyeonggi-do, South Korea

  • Asan Medical Center

    Seoul, South Korea

  • CHA Bundang Medical Center, CHA University

    Seongnam-si, Gyeonggi-do, South Korea

  • Cancer Institute Hospital of JFCR

    Koto-ku, Tokyo, Japan

  • Chang Gung Memorial Hospital, Keelung

    Keelung, Taiwan

  • Chang Gung Memorial Hospital,Linkou

    Taoyuan County, Taiwan

  • Chi Mei Hospital, Liouying

    Tainan, Taiwan

  • China Medical University Hospital

    Taichung, Taiwan

  • Chonnam National University Hwasun Hospital

    Hwasun-gun, Jeollanam-do, South Korea

  • Chung-Ang University Hospital

    Seoul, South Korea

  • Chungbuk National University Hospital

    Cheongju-si, North Chungcheong, South Korea

  • Chungnam National University Hospital

    Daejeon, South Korea

  • Dong-A University Hospital

    Busan, South Korea

  • Far Eastern Memorial Hospital

    New Taipei City, Taiwan

  • Gachon University Gil Medical Center

    Incheon, South Korea

  • Gangnam Severance Hospital, Yonsei University Health System

    Seoul, South Korea

  • Hallym University Sacred Heart Hospital

    Anyang-si, Gyeonggi-do, South Korea

  • IMSUT Hospital, The Institute of Medical Science, The University of Tokyo

    Minato-ku, Tokyo, Japan

  • Inje University Haeundae Paik Hospital

    Busan, South Korea

  • Jeonbuk national university hospital

    Jeonju, Jeollabuk-do, South Korea

  • Kanagawa Cancer Center

    Yokohama, Kanagawa, Japan

  • Kangbuk Samsung Hospital

    Seoul, South Korea

  • Kaohsiung Chang Gung Memorial Hospital

    Kaohsiung City, Taiwan

  • Kaohsiung Medical University Chung-Ho Memorial Hospital

    Kaohsiung City, Taiwan

  • Keimyung University Dongsan Hospital

    Daegu, South Korea

  • Keio University Hospital

    Shinjyuku-ku, Tokyo, Japan

  • Konyang University Hospital

    Daejeon, South Korea

  • Koo Foundation Sun Yat-Sen Cancer Center

    Taipei, Taiwan

  • Korea University Guro Hospital

    Seoul, South Korea

  • Kosin University Gospel Hospital

    Busan, Gangwon-do, South Korea

  • Kyungpook National University Chilgok Hospital

    Daegu, Gyeongsangbuk-do, South Korea

  • National Cancer Center

    Goyang-si, Gyeonggi-do, South Korea

  • National Cancer Center Hospital

    Chuo-ku, Tokyo, Japan

  • National Cancer Center Hospital East

    Kashiwa-shi, Chiba, Japan

  • National Cheng Kung University Hospital

    Tainan, Taiwan

  • National Taiwan University Hospital

    Taipei, Taiwan

  • Osaka University Hospital

    Suita-shi, Osaka, Japan

  • Osaki Citizen Hospital

    Osaki-shi, Miyagi, Japan

  • Pusan National University Hospital

    Busan, South Korea

  • Pusan National University Yangsan Hospital

    Yangsan, Gyeongsangnam-do, South Korea

  • Saitama Cancer Center

    Ina-machi, Kitaadati-gun, Saitama, Japan

  • Saitama Medical University International Medical Center

    Hidaka-shi, Saitama, Japan

  • Samsung Medical Center

    Seoul, South Korea

  • Seoul National University Bundang Hospital

    Seongnam-si, Gyeonggi-do, South Korea

  • Seoul National University Hospital

    Seoul, South Korea

  • Severance Hospital, Yonsei University Health System

    Seoul, South Korea

  • Shizuoka Cancer Center

    Nagaizumi-Cho, Sunto-Gun, Shizuoka, Japan

  • Taichung Veterans General Hospital

    Taichung, Taiwan

  • Taipei Medical University - Shuang Ho Hospital, Ministry of Health and Welfare

    New Taipei City, Taiwan

  • Taipei Medical University Hospital

    Taipei, Taiwan

  • Taipei Municipal Wanfang Hospital Managed by Taipei Medical University

    Taipei, Taiwan

  • Taipei Veterans General Hospital

    Taipei, Taiwan

  • The Catholic University of Korea, Seoul St. Mary's Hospital

    Seoul, South Korea

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

    Suwon, Gyeonggi-do, South Korea

  • Tri-Service General Hospital

    Taipei, Taiwan

  • Ulsan University Hospital

    Ulsan, South Korea

  • University of Tokyo Hospital

    Bunkyo-ku, Tokyo, Japan