Assessing Durvalumab and FLOT Chemotherapy in Resectable Gastric and Gastroesophageal Junction Cancer

NCT ID: NCT04592913

Last Updated: 2025-12-24

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE3

Total Enrollment

957 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-11-17

Study Completion Date

2027-09-27

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

This is a Global Study of Neoadjuvant-Adjuvant Durvalumab or Placebo and FLOT Chemotherapy Followed by Adjuvant Durvalumab or Placebo in Patients with Resectable Gastric and Gastroesophageal Cancer (GC/GEJC) (MATTERHORN).

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

This study investigates treatment of durvalumab or placebo therapy combined with FLOT chemotherapy (flurouroacil + leucovorin + oxaliplatin + docetaxel) given before surgery (neoadjuvant) and durvalumab or placebo therapy combined with FLOT chemotherapy after surgery (adjuvant), will work and be safe for the treatment of resectable (removable by surgery) gastric or gastroesophageal cancer, and also to better understand the studied disease and associated health problems.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Gastrointestinal Neoplasms Esophagogastric Junction

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Randomized, Double-blind, Placebo-controlled study
Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Arm B

placebo product and FLOT chemotherapy

Group Type PLACEBO_COMPARATOR

FLOT chemotherapy

Intervention Type DRUG

A combination treatment made up of flurouroacil + leucovorin + oxaliplatin + docetaxel

Arm A

Durvalumab and FLOT chemotherapy

Group Type EXPERIMENTAL

Durvalumab

Intervention Type DRUG

Human monoclonal antibody

FLOT chemotherapy

Intervention Type DRUG

A combination treatment made up of flurouroacil + leucovorin + oxaliplatin + docetaxel

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Durvalumab

Human monoclonal antibody

Intervention Type DRUG

FLOT chemotherapy

A combination treatment made up of flurouroacil + leucovorin + oxaliplatin + docetaxel

Intervention Type DRUG

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Patients with histologically documented gastric or gastroesophageal junction adenocarcinoma with resectable disease (Stage II or higher per AJCC 8th edition).
* Patients must undergo radical surgery.
* No prior anti-cancer therapy for the current malignancy.
* World Health Organization (WHO)/ECOG performance status of 0 or 1 at enrollment.
* Adequate organ and marrow function.
* Availability of tumor sample prior to study entry.
* Must have a life expectancy of at least 24 weeks.

Exclusion Criteria

* Patients with peritoneal dissemination or distant metastasis.
* Patients with adenosquamous cell carcinoma, squamous cell carcinoma, or GI stromal tumor.
* Current or prior use of immunosuppressive medication within 14 days before the first dose of durvalumab.
* Contra-indication to any of the study drugs.
* History of allogeneic organ transplantation.
Minimum Eligible Age

18 Years

Maximum Eligible Age

200 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

AstraZeneca

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Research Site

Duarte, California, United States

Site Status

Research Site

Los Angeles, California, United States

Site Status

Research Site

Los Angeles, California, United States

Site Status

Research Site

Sylmar, California, United States

Site Status

Research Site

St. Petersburg, Florida, United States

Site Status

Research Site

Tallahassee, Florida, United States

Site Status

Research Site

West Palm Beach, Florida, United States

Site Status

Research Site

Fort Wayne, Indiana, United States

Site Status

Research Site

Louisville, Kentucky, United States

Site Status

Research Site

Boston, Massachusetts, United States

Site Status

Research Site

New York, New York, United States

Site Status

Research Site

Rochester, New York, United States

Site Status

Research Site

Nashville, Tennessee, United States

Site Status

Research Site

Dallas, Texas, United States

Site Status

Research Site

Lancaster, Texas, United States

Site Status

Research Site

Seattle, Washington, United States

Site Status

Research Site

Buenos Aires, , Argentina

Site Status

Research Site

Ciudad Autonoma Buenos Aires, , Argentina

Site Status

Research Site

Ciudad de Buenos Aires, , Argentina

Site Status

Research Site

Ciudad de Buenos Aires, , Argentina

Site Status

Research Site

Rosario, , Argentina

Site Status

Research Site

Rosario, , Argentina

Site Status

Research Site

Charleroi, , Belgium

Site Status

Research Site

Edegem, , Belgium

Site Status

Research Site

Leuven, , Belgium

Site Status

Research Site

Liège, , Belgium

Site Status

Research Site

Roeselare, , Belgium

Site Status

Research Site

Barretos, , Brazil

Site Status

Research Site

Natal, , Brazil

Site Status

Research Site

Porto Alegre, , Brazil

Site Status

Research Site

Porto Alegre, , Brazil

Site Status

Research Site

Rio de Janeiro, , Brazil

Site Status

Research Site

São José do Rio Preto, , Brazil

Site Status

Research Site

São Paulo, , Brazil

Site Status

Research Site

Edmonton, Alberta, Canada

Site Status

Research Site

North York, Ontario, Canada

Site Status

Research Site

Oshawa, Ontario, Canada

Site Status

Research Site

Toronto, Ontario, Canada

Site Status

Research Site

Montreal, Quebec, Canada

Site Status

Research Site

Montreal, , Canada

Site Status

Research Site

La Serena, , Chile

Site Status

Research Site

Santiago, , Chile

Site Status

Research Site

Santiago, , Chile

Site Status

Research Site

Talca, , Chile

Site Status

Research Site

Temuco, , Chile

Site Status

Research Site

Temuco, , Chile

Site Status

Research Site

Aalborg, , Denmark

Site Status

Research Site

København Ø, , Denmark

Site Status

Research Site

Odense, , Denmark

Site Status

Research Site

Avignon, , France

Site Status

Research Site

Besançon, , France

Site Status

Research Site

Brest, , France

Site Status

Research Site

Dijon, , France

Site Status

Research Site

Lyon, , France

Site Status

Research Site

Montpellier, , France

Site Status

Research Site

Nantes, , France

Site Status

Research Site

Nice, , France

Site Status

Research Site

Paris, , France

Site Status

Research Site

Paris, , France

Site Status

Research Site

Paris, , France

Site Status

Research Site

Rennes, , France

Site Status

Research Site

Berlin, , Germany

Site Status

Research Site

Dresden, , Germany

Site Status

Research Site

Frankfurt, , Germany

Site Status

Research Site

Hamburg, , Germany

Site Status

Research Site

Hamburg, , Germany

Site Status

Research Site

Heidelberg, , Germany

Site Status

Research Site

Heilbronn, , Germany

Site Status

Research Site

Jena, , Germany

Site Status

Research Site

Mainz Am Rhein, , Germany

Site Status

Research Site

München, , Germany

Site Status

Research Site

Schweinfurt, , Germany

Site Status

Research Site

Tübingen, , Germany

Site Status

Research Site

Budapest, , Hungary

Site Status

Research Site

Győr, , Hungary

Site Status

Research Site

Kecskemét, , Hungary

Site Status

Research Site

Szekszárd, , Hungary

Site Status

Research Site

Szolnok, , Hungary

Site Status

Research Site

Chūōku, , Japan

Site Status

Research Site

Hidaka-shi, , Japan

Site Status

Research Site

Hirakata-shi, , Japan

Site Status

Research Site

Hiroshima, , Japan

Site Status

Research Site

Kashiwa, , Japan

Site Status

Research Site

Kitaadachi-gun, , Japan

Site Status

Research Site

Kochi, , Japan

Site Status

Research Site

Kurume-shi, , Japan

Site Status

Research Site

Nagoya, , Japan

Site Status

Research Site

Niigata, , Japan

Site Status

Research Site

Ogaki-shi, , Japan

Site Status

Research Site

Osaka, , Japan

Site Status

Research Site

Osaka, , Japan

Site Status

Research Site

Suita-shi, , Japan

Site Status

Research Site

Sunto-gun, , Japan

Site Status

Research Site

Tokyo, , Japan

Site Status

Research Site

Toyoake-shi, , Japan

Site Status

Research Site

Wakayama, , Japan

Site Status

Research Site

Yokohama, , Japan

Site Status

Research Site

Amsterdam, , Netherlands

Site Status

Research Site

Eindhoven, , Netherlands

Site Status

Research Site

Rotterdam, , Netherlands

Site Status

Research Site

Bellavista, , Peru

Site Status

Research Site

Lima, , Peru

Site Status

Research Site

Lima, , Peru

Site Status

Research Site

Lima, , Peru

Site Status

Research Site

San Isidro, , Peru

Site Status

Research Site

Bialystok, , Poland

Site Status

Research Site

Gdansk, , Poland

Site Status

Research Site

Krakow, , Poland

Site Status

Research Site

Lodz, , Poland

Site Status

Research Site

Poznan, , Poland

Site Status

Research Site

Poznan, , Poland

Site Status

Research Site

Warsaw, , Poland

Site Status

Research Site

Warsaw, , Poland

Site Status

Research Site

Kaluga, , Russia

Site Status

Research Site

Moscow, , Russia

Site Status

Research Site

Moscow, , Russia

Site Status

Research Site

Moscow, , Russia

Site Status

Research Site

Novosibirsk, , Russia

Site Status

Research Site

Obninsk, , Russia

Site Status

Research Site

Saint Petersburg, , Russia

Site Status

Research Site

Hwasun-gun, , South Korea

Site Status

Research Site

Seongnam-si, , South Korea

Site Status

Research Site

Seoul, , South Korea

Site Status

Research Site

Seoul, , South Korea

Site Status

Research Site

Seoul, , South Korea

Site Status

Research Site

Seoul, , South Korea

Site Status

Research Site

Barcelona, , Spain

Site Status

Research Site

Barcelona, , Spain

Site Status

Research Site

Barcelona, , Spain

Site Status

Research Site

Madrid, , Spain

Site Status

Research Site

Madrid, , Spain

Site Status

Research Site

Málaga, , Spain

Site Status

Research Site

Ourense, , Spain

Site Status

Research Site

Santander, , Spain

Site Status

Research Site

Seville, , Spain

Site Status

Research Site

Valencia, , Spain

Site Status

Research Site

Kaohsiung City, , Taiwan

Site Status

Research Site

Taichung, , Taiwan

Site Status

Research Site

Tainan, , Taiwan

Site Status

Research Site

Taipei, , Taiwan

Site Status

Research Site

Taipei, , Taiwan

Site Status

Research Site

Taoyuan, , Taiwan

Site Status

Research Site

Adana, , Turkey (Türkiye)

Site Status

Research Site

Ankara, , Turkey (Türkiye)

Site Status

Research Site

Erzurum, , Turkey (Türkiye)

Site Status

Research Site

Istanbul, , Turkey (Türkiye)

Site Status

Research Site

Istanbul, , Turkey (Türkiye)

Site Status

Research Site

Samsun, , Turkey (Türkiye)

Site Status

Research Site

Cambridge, , United Kingdom

Site Status

Research Site

Dundee, , United Kingdom

Site Status

Research Site

Glasgow, , United Kingdom

Site Status

Research Site

Leicester, , United Kingdom

Site Status

Research Site

London, , United Kingdom

Site Status

Research Site

Manchester, , United Kingdom

Site Status

Research Site

Oxford, , United Kingdom

Site Status

Research Site

Surrey, , United Kingdom

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States Argentina Belgium Brazil Canada Chile Denmark France Germany Hungary Japan Netherlands Peru Poland Russia South Korea Spain Taiwan Turkey (Türkiye) United Kingdom

References

Explore related publications, articles, or registry entries linked to this study.

Janjigian YY, Al-Batran SE, Wainberg ZA, Muro K, Molena D, Van Cutsem E, Hyung WJ, Wyrwicz L, Oh DY, Omori T, Moehler M, Garrido M, Oliveira SCS, Liberman M, Oliden VC, Smyth EC, Stein A, Bilici M, Alvarenga ML, Kozlov V, Rivera F, Kawazoe A, Serrano O, Heilbron E, Negro A, Kurland JF, Tabernero J; MATTERHORN Investigators. Perioperative Durvalumab in Gastric and Gastroesophageal Junction Cancer. N Engl J Med. 2025 Jul 17;393(3):217-230. doi: 10.1056/NEJMoa2503701. Epub 2025 Jun 1.

Reference Type DERIVED
PMID: 40454643 (View on PubMed)

Chang X, Ge X, Zhang Y, Xue X. The current management and biomarkers of immunotherapy in advanced gastric cancer. Medicine (Baltimore). 2022 May 27;101(21):e29304. doi: 10.1097/MD.0000000000029304.

Reference Type DERIVED
PMID: 35623069 (View on PubMed)

Janjigian YY, Van Cutsem E, Muro K, Wainberg Z, Al-Batran SE, Hyung WJ, Molena D, Marcovitz M, Ruscica D, Robbins SH, Negro A, Tabernero J. MATTERHORN: phase III study of durvalumab plus FLOT chemotherapy in resectable gastric/gastroesophageal junction cancer. Future Oncol. 2022 Jun;18(20):2465-2473. doi: 10.2217/fon-2022-0093. Epub 2022 May 10.

Reference Type DERIVED
PMID: 35535555 (View on PubMed)

Cowzer D, Janjigian YY. Top advances in esophageal/gastroesophageal junction cancers in 2021. Cancer. 2022 May 15;128(10):1894-1899. doi: 10.1002/cncr.34140. Epub 2022 Feb 18. No abstract available.

Reference Type DERIVED
PMID: 35179774 (View on PubMed)

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

2019-001555-40

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

D910GC00001

Identifier Type: -

Identifier Source: org_study_id