Gut bacteria pill could boost stomach cancer treatment

NCT ID NCT06253611

First seen Jun 24, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This phase 2 trial tests whether adding a daily pill containing a specific gut bacterium (EXL01) to standard immunotherapy (nivolumab) and chemotherapy (FOLFOX) can shrink tumors better than the drugs alone in people with advanced gastric cancer. About 120 participants will be randomly assigned to receive either the combination or the standard regimen. The main goal is to see how many patients have their tumors shrink significantly after 4 months.

What this could mean

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

Active substance

EXL01 (a live bacterial product taken as a pill)

What this could lead to

If it works, this could point toward a way to boost the effectiveness of standard immunotherapy and chemotherapy for advanced gastric cancer.

What could go wrong

This is a small, early-phase trial (120 people) testing a novel approach. The gut bacteria intervention may not improve outcomes and could cause unexpected side effects.

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 carcinoma gastric neoplasm

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

  • CENTRE HOSPITALIER REGIONAL UNIVERSITAIRE DE NANCY Site Brabois

    NOT_YET_RECRUITING

    Vandœuvre-lès-Nancy, France

    Contact

  • Centre Antoine Lacassagne

    RECRUITING

    Nice, France

    Contact

  • Centre Francois Baclesse

    NOT_YET_RECRUITING

    Caen, France

    Contact

  • Centre Georges Francois Leclerc

    RECRUITING

    Dijon, France

    Contact

  • Centre Hospitalier Cochin

    NOT_YET_RECRUITING

    Paris, France

    Contact

  • Centre Hospitalier Henri Mondor

    NOT_YET_RECRUITING

    Créteil, France

    Contact

  • Centre Hospitalier Saint-Malo

    NOT_YET_RECRUITING

    St-Malo, France

    Contact

  • Centre Hospitalier Universitaire Clermont Ferrand - Site Estaing

    NOT_YET_RECRUITING

    Clermont-Ferrand, France

    Contact

  • Centre Hospitalier Universitaire Grenoble Alpes - Site Nord - Hopital Michallon

    NOT_YET_RECRUITING

    La Tronche, France

    Contact

  • Centre Hospitalier Universitaire Jean Minjoz

    RECRUITING

    Besançon, France

    Contact

  • Centre Hospitalier Universitaire Morvan

    NOT_YET_RECRUITING

    Brest, France

    Contact

  • Centre Hospitalier Universitaire Nantes - Hopital Hotel Dieu

    NOT_YET_RECRUITING

    Nantes, France

    Contact

  • Centre Hospitalier Universitaire Reims Hopital Robert Debre

    RECRUITING

    Reims, France

    Contact

  • Centre Hospitalier Universitaire Tours - Hopital Trousseau

    NOT_YET_RECRUITING

    Tours, France

    Contact

  • Centre Hospitalier Universitaire de Lille

    RECRUITING

    Lille, France

    Contact

  • Centre Hospitalier Universitaire de Montpellier

    NOT_YET_RECRUITING

    Montpellier, France

    Contact

  • Centre Hospitalier Universitaire de Poitiers - Hopital de La Miletrie

    RECRUITING

    Poitiers, France

    Contact

  • Centre Hospitalier Universitaire de Rennes

    NOT_YET_RECRUITING

    Rennes, France

    Contact

  • Centre Hospitalier de Cholet

    RECRUITING

    Cholet, France

    Contact

  • Clinique Sainte Catherine

    RECRUITING

    Avignon, France

    Contact

  • Groupe Hospitalier Diaconesses Croix Saint-Simon

    NOT_YET_RECRUITING

    Paris, France

    Contact

  • Hopital D'Instruction Des Armées Bégin

    NOT_YET_RECRUITING

    Saint-Mandé, France

    Contact

  • Hopital Europeen Georges Pompidou

    NOT_YET_RECRUITING

    Paris, France

    Contact

  • Hopital La Timone

    NOT_YET_RECRUITING

    Marseille, France

    Contact

  • Hopital Leon Berard

    RECRUITING

    Lyon, France

    Contact

  • Hopital Paul Brousse

    RECRUITING

    Villejuif, France

    Contact

  • Hopital Prive Jean Mermoz

    NOT_YET_RECRUITING

    Lyon, France

    Contact

  • Hopital Saint Antoine

    RECRUITING

    Paris, France

    Contact

  • Hopital Saint-Louis

    NOT_YET_RECRUITING

    Paris, France

    Contact

  • Institut Bergonie

    NOT_YET_RECRUITING

    Bordeaux, France

    Contact

  • Institut Curie

    NOT_YET_RECRUITING

    Paris, France

    Contact

  • Institut Gustave Roussy

    NOT_YET_RECRUITING

    Paris, France

    Contact

  • Institut Jean Godinot

    NOT_YET_RECRUITING

    Reims, France

    Contact

  • Institut Mutualiste Montsouris

    NOT_YET_RECRUITING

    Paris, France

    Contact

  • Institut de Cancerologie Strasbourg Europe

    NOT_YET_RECRUITING

    Strasbourg, France

    Contact

  • Institut de Cancerologie de L'Ouest Paul Papin

    NOT_YET_RECRUITING

    Angers, France

    Contact

  • Medipole Hopital Mutualiste Lyon-Villeurbanne

    NOT_YET_RECRUITING

    Villeurbanne, France

    Contact