New antibody combo takes on Hard-to-Treat stomach cancers

NCT ID NCT06116136

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

Summary

This study tests a new antibody drug, S095029, combined with the immunotherapy pembrolizumab in people with advanced stomach or gastro-esophageal junction cancer that has a specific genetic feature (MSI-H/dMMR). The trial aims to see if the combination is safe and can shrink tumors. About 48 participants will receive the drugs every three weeks.

What this could mean

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

Active substance

S095029 (an antibody that blocks NKG2A) combined with pembrolizumab (an immunotherapy)

What this could lead to

If successful, this combination could offer a new treatment option for people with a specific type of advanced stomach or esophageal cancer that has not responded well to prior therapy.

What could go wrong

This is an early-phase trial with only 48 participants, so results may not apply broadly. The combination may cause side effects or fail to shrink tumors in many 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.

gastric adenocarcinoma 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

  • A.O.U. Pisana-Ospedale Santa Chiara

    Pisa, 56126, Italy

  • A.O.U. Seconda Università Degli Studi Di Napoli

    Campania, 80131, Italy

  • Beijing Cancer Hospital

    Beijing, Beijing Municipality, 100142, China

  • Bekes Megyei Kozponti Korhaz

    Gyula, 05700, Hungary

  • Bugat Pal Hospital

    Gyöngyös, 3200, Hungary

  • Cancer Institute Hospital of Jfcr

    Koto-Ku, Tokyo, 1358550, Japan

  • Centre Georges Francois Leclerc

    Dijon, 21079, France

  • Cepon - Centro de Pesquisas Oncologicas

    Florianópolis, 88034-000, Brazil

  • Chru Lille - Hopital Claude Huriez

    Lille, 59037, France

  • Chu de Liege

    Liège, 4000, Belgium

  • Fondazione IRCCS Istituto Nazionale dei Tumor

    Milan, 20133, Italy

  • Fudan University Shanghai Cancer Center

    Shanghai, Shanghai Municipality, 201321, China

  • Harbin Medical University Cancer Hospital

    Harbin, Heilongjiang, 150081, China

  • Henan Cancer Hospital

    Zhengzhou, Henan, 450003, China

  • Hospital Albert Einstein

    São Paulo, 05652- 900, Brazil

  • Hospital Universitario Gregorio Marañón

    Madrid, 28007, Spain

  • Hospital Universitario Marqués de Valdecilla

    Santander, 39008, Spain

  • Hospital Universitario de Valencia

    Valencia, 46010, Spain

  • Icesp - Instituto Do Câncer Do Estado de São Paulo

    São Paulo, 01246-000, Brazil

  • Inst. de Cancer de L'ouest

    Saint-Herblain, 44805, France

  • Institut Bergonié

    Bordeaux, 33076, France

  • Institut Curie

    Saint-Cloud, 92064, France

  • Institut de Cancerologie de Lorraine

    Vandœuvre-lès-Nancy, 54519, France

  • Instituto Brasileiro de Controle Do Câncer

    São Paulo, 04014-002, Brazil

  • Investigative Clinical Research of Indiana, Llc

    Noblesville, Indiana, 46062, United States

  • Landeskrankenhaus (SALK)

    Salzburg, 5020, Austria

  • Liaoning Cancer Hospital

    Shenyang, Liaoning, 110042, China

  • MD Anderson Cancer Center

    Houston, Texas, 77030, United States

  • Med Universitat Wien-Allgemeines Krankenhaus Der Stadt Wien (AKH)

    Vienna, State of Vienna, 01090, Austria

  • Mount Sinai Hospital

    Toronto, M5G 1X5, Canada

  • National Cancer Center Hospital

    Chou-ku, 104-0045, Japan

  • Ocala Oncology Center Pl

    Ocala, Florida, 34474, United States

  • Odense Universitetshospital

    Odense, 5000, Denmark

  • Ordensklinikum Linz

    Linz, Upper Austria, 04010, Austria

  • Orszagos Onkologiai Intezet

    Budapest, 01122, Hungary

  • Osaka International Cancer Institute

    Osaka, 5418567, Japan

  • Pan American Center For Oncology Trials, Llc

    Rio Piedras, 00935, Puerto Rico

  • Policlinico G.B. Rossi A.O.U.I. Di Verona

    Verona, 37134, Italy

  • Policlinico Universitario Agostino Gemelli

    Rome, 00168, Italy

  • Rigshospitalet

    Copenhagen, 2100, Denmark

  • Semmelweis Egyetem

    Budapest, 01083, Hungary

  • Shandong Cancer Hospital Institute

    Jinan, Shandong, 250117, China

  • Sir Run Run Shaw Hospital Zhejiang University School of Medicine Qingchun Branch

    Hangzhou, Zhengjiang Province, 310000, China

  • Supera Oncologia

    Santa Catarina, 89812-211, Brazil

  • The Queen Elizabeth Hospital

    Woodville South, 5011, Australia

  • The Royal Marsden in Chelsea

    London, SW3 6JJ, United Kingdom

  • The Royal Marsden in Sutton

    Sutton, Surrey, SM2 5PT, United Kingdom

  • UZ Leuven Campus Gasthuisberg

    Leuven, 3000, Belgium

  • University Hospital Vall D'Hebron Institute of Oncology (VHIO)

    Barcelona, 08035, Spain