Gastric CancerPhase 2BIGNCT06253611
First-line EXL01 With Nivolumab and FOLFOX for PD-L1 CPS ≥5 Metastatic Gastric Cancer
A Phase 2 study testing Nivolumab, FOLFOX regimen and EXL01 in people with Gastric Cancer, run by GERCOR - Multidisciplinary Oncology Cooperative Group at 37 sites in France.
Trial summary
This is a randomized non-comparative, multicenter phase II study in patients with PD-L1 PD-L1 combined positive score (CPS) ≥5 advanced gastric cancer to evaluate the efficacy and safety of nivolumab and FOLFOX in combination with EXL01 as first-line treatment. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Gastric Cancer
- What is being tested?
- Nivolumab, FOLFOX regimen and EXL01
- Type of treatment
- Pill or oral medicine, Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 120 participants
- Where
- 37 sitesFrance
- Study dates
- 16 Apr 2024to Apr 2029
- Phase
- Phase 2
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients must have dated and signed an approved written informed consent form. This must be obtained before the performance of any protocol-related procedures that are not part of normal patient care.
- Patients must be willing and able to comply with scheduled visits, treatment schedule, laboratory tests and other requirements of the study,
- Target Population
- Inoperable, advanced, or metastatic gastric cancer or gastroesophageal junction or distal esophageal carcinoma and histologically confirmed predominant adenocarcinoma,
- Expression of PD-L1 with a combined positive score (PD-L1 CPS) ≥5, Note: information must be available at the time of inclusion, the examination will be performed locally in the center and secondarily confirmed centrally,
- No prior systemic cancer treatment given as primary therapy for advanced nonresectable or metastatic disease, Note: if patient received neoadjuvant/adjuvant therapy, this therapy should be completed at least 6 months prior to the diagnosis of metastatic or recurrent disease is made. Palliative radiotherapy is allowed and must be completed 2 weeks prior to randomization,
Show all 31Show fewer
- At least one measurable lesion as assessed by computed tomography (CT)-scan or magnetic resonance imaging (MRI) according to Response Evaluation Criteria in Solid Tumors (RECIST) v 1.1 and feasibility of repeated radiological assessments; radiographic tumor assessment should be performed within 28 days prior to randomization,
- Eastern Cooperative Oncology Group performance status (ECOG PS) of 0 or 1,
- Adequate hematologic and end-organ function, defined by the following laboratory test results, obtained within 14 days prior to randomization of study treatment:
- White blood cell ≥ 2000/μL;
- Neutrophils ≥ 2000/μL;
- Platelets ≥ 100.000/μL;
- Hemoglobin ≥ 9.0 g/dL;
- Serum albumin ≥ 30 g/L;
- Serum creatinine level ≤ 150 μM and calculated creatinine clearance (Cockcroft-Gault) > 50 mL/minute,
- Total bilirubin ≤ 1.5 x upper normal limit (ULN);
- Alanine aminotransferase (ALT) ≤ 3.0 x ULN (or ≤ 5.0 x ULN if liver metastases are present);
- Aspartame aminotransferase (AST) ≤ 3.0 x ULN (or ≤ 5.0 x ULN if liver metastases are present);
- Potassium ≥ 1.0 x lower limit of normal (LLN),
- Magnesium ≥ 1.0 x LLN,
- Calcium ≥ 1.0 x LLN,
- Baseline-corrected QT interval ≤ 450 msec for males and ≤ 470 msec for females,
- Availability of a representative tumor tissue specimen for exploratory translational research; tumor tissue samples, either formalin- fixed paraffin-embedded (FFPE) tissue block or unstained tumor tissue sections (minimum of 20 positively charged slides) from primary or metastatic site must be submitted to the central laboratory,
- Registration in a national health care system (PUMa-Protection Universelle Maladie included.
- Age and reproductive status
- Age ≥ 18 years,
- Women must not be pregnant, breastfeeding, or expecting to conceive during the study,
- Reproductive status:
- Women of childbearing potential (WOCBP) must have a negative serum pregnancy test within 72 hours prior to the start of study drug,
- WOCBP must agree to use an adequate method of contraception or birth control for the duration of study treatment and 5 months (nivolumab), 9 months (oxaliplatin), 6 months (5-FU) or at least 1 month (EXL01) of the patient's last dose of the study drug,
- Males who are fertile and sexually active with WOCBP must agree to follow instructions for method(s) of contraception for the duration of study treatment and 6 months (nivolumab, oxaliplatin, or 5-FU) or at least 1 month (EXL01) after the last dose of study treatment. In addition, males must be willing to refrain from sperm donation during this time,
Who cannot join
- Target Disease Exceptions
- Known HER-2 positive status or unknown HER-2 status before inclusion,
- Active brain metastases or known history of leptomeningeal carcinomatosis,
- Ascites, which cannot be controlled with appropriate interventions,
- Exclusion criteria related to medical history and concurrent disease
- Prior malignancy active within the previous 3 years except for locally curable cancers that have been apparently cured, such as basal or squamous cell skin cancer, superficial bladder cancer, or carcinoma in situ of the prostate, cervix, or breast,
Show all 47Show fewer
- Active, known, or suspected autoimmune disease; type I diabetes mellitus, hypothyroidism only requiring hormone replacement, skin disorders (such as vitiligo, psoriasis, or alopecia) not requiring systemic treatment, or conditions not expected to recur in the absence of an external trigger are permitted,
- Interstitial lung disease that is symptomatic or may interfere with the detection or management of suspected treatment-related pulmonary toxicity,
- Prior treatment with an anti-PD(L)1, anti-LAG-3, or anti-CTLA-4 antibody, or any other antibody or drug specifically targeting T-cell co- stimulation or immune checkpoint pathways, including prior therapy with anti-tumor vaccines or other immuno-stimulatory antitumor agents,
- Condition requiring systemic treatment with either corticosteroids (>10 mg daily prednisone equivalent) or other immunosuppressive medications within 14 days (2 weeks) of randomization. Inhaled or topical steroids, and adrenal replacement steroid doses >10 mg daily prednisone equivalent, are permitted prior to randomization in the absence of active autoimmune disease,
- Persistence of toxicity (The National Cancer Institute Common Terminology Criteria for Adverse Event [NCI CTCAE] v 5.0) grade >1 related to prior anticancer treatments,
- Major surgery within 28 days (4 weeks) prior to first dose of study treatment, Note: Participants who had surgery >4 weeks prior to screening must have recovered adequately from any toxicity and/or complications from the surgery or trauma prior to starting study intervention.
- Concomitant unplanned antitumor therapy (e.g., chemotherapy, molecular targeted therapy, radiotherapy, immunotherapy),
- GI obstruction, poor oral intake, or difficulty in taking oral medication or difficulties in swallowing; nasogastric tubes are not permitted,
- Known GI malabsorption,
- Is currently participating in or has participated in a study with an investigational compound within 28 days prior to the first dose of study treatment, Note: Participants who have entered the follow-up phase of an investigational study may participate so long as it has been at least 3 months since the last dose of the previous investigational agent,
- Prior allogeneic bone marrow transplantation or prior solid organ transplantation,
- Fecal microbiota transplant within 3 months prior to screening, Note: Patients must have recovered adequately from the toxicity and/or complications from the treatment prior to starting study intervention.
- Current probiotics administration, or planned probiotics administration during treatment course is not allowed, Note: The following therapies should be avoided during the study; however, they are not prohibited if, in the assessment of the
- Investigator, they are required for clinical management:
- Nonsteroidal anti-inflammatories,
- Antacids,
- Proton-pump inhibitors.
- Excessive alcohol intake: moderate consumption, defined as no more than 1 drink per day for women and no more than 2 drinks per day for men, is permitted,
- Known allergy and/or hypersensitivity to any component or excipients of study treatments (nivolumab, EXL01), any other live pro- biotherapeutic product, and/or to soybean or soy-containing products,
- Known history or newly diagnosed GI parasitic infection within 3 months prior to screening, Note: Patients must have recovered adequately from the toxicity and/or complications from the treatment prior to starting study intervention,
- Active inflammatory intestinal disease (Crohn disease, Hemorrhagic recto-colitis, coeliac disease) or any serious chronic intestinal disease with uncontrolled diarrhea, or other inflammatory disease requiring anti-inflammatory medications (according to exclusion criteria n°8),
- Active or chronic hepatitis B virus (HBV), hepatitis C virus (HCV) and/or human immunodeficiency virus infection (HIV 1/2 antibodies).
- Participants are eligible if they:
- Have controlled HCV load defined as undetectable hepatitis C RNA by polymerase chain reaction either spontaneously or in response to a successful prior course of anti-hepatitis C therapy,
- Have received HBV vaccination with only anti-HBs positivity and no clinical signs of hepatitis,
- Are HBV surface antigen (HBsAg)- and anti- Hepatitis B core antibody (HBc)+ (i.e., those who have cleared HBV after infection),
- Are HBsAg+ with chronic HBV infection (lasting 6 months or longer) and meet conditions below:
- HBV DNA viral load <100 IU/mL,
- Have normal transaminase values, or, if liver metastases are present, abnormal transaminases, with a result of AST/ALT <3 × ULN, which are not attributable to HBV infection,
- Start or maintain antiviral treatment if clinically indicated as per the investigator,
- Any (attenuated) live vaccine use within 28 days (4 weeks) prior to randomization, while in the study; live vaccines include, but are not limited to, the following: yellow fever, varicella, shingles, measles, mumps, rubella, tuberculosis, rotavirus, influenza,
- Ongoing or concomitant use of the antiviral drug sorivudine or its chemically related analogs, such as brivudine,
- Dihydropyrimidine dehydrogenase deficiency (DPD; uracilemia dosage >16 ng/ml), Uracilemia dosing results must be available before inclusion,
- Any condition that, in the opinion of the investigator, would interfere with evaluation of the investigational product or interpretation of the patient's safety or study results,
- Known peripheral sensory neuropathy with functional impairment according exclusion criteria n°9) prior to first treatment, according to the Summary of product characteristics (SmPC) of oxaliplatin,
- Known potentially serious infection, according to the SmPC of 5-FU
- Has clinically significant active heart disease or myocardial infarction within 6 months given the cardiotoxicity of 5-FU, according to the SmPC of 5-FU,
- Known history of hypersensitivity to 5-FU, oxaliplatin, or leucovorin, or to any of their excipients, according to the SmPCs of these products.
- Exclusion criteria related to geographical, social, and legal issues
- Impossibility of submitting to the medical follow-up of the study for geographical, social, or psychiatric illness,
- Patient under a legal protection regime (guardianship, curatorship, judicial safeguard) or administrative decision or incapable of giving his/her consent.
Trial locations and contacts
37 sites in 1 country. Contact the study team or a site near you to ask about taking part.
37 sites in 1 country
France37 sites, 37 recruiting
- Not yet recruiting
Institut de Cancerologie de L'Ouest Paul Papin
Angers
Sandrine HIRET, MD
- Recruiting
Clinique Sainte Catherine
Avignon
Clemence TOULLEC, MD
- Recruiting
Centre Hospitalier Universitaire Jean Minjoz
Besançon
Angelique VIENOT, MD
- Not yet recruiting
Institut Bergonie
Bordeaux
Simon PERNOT, MD
- Not yet recruiting
Centre Hospitalier Universitaire Morvan
Brest
Estelle Dhamelincourt, MD
- Not yet recruiting
Centre Francois Baclesse
Caen
Aurélie PARZY, MD
- Recruiting
Centre Hospitalier de Cholet
Cholet
Thonas CENTRE HOSPITALIER DE CHOLET, MD
- Not yet recruiting
Centre Hospitalier Universitaire Clermont Ferrand - Site Estaing
Clermont-Ferrand
Marine JARY, MD
- Not yet recruiting
Centre Hospitalier Henri Mondor
Créteil
Charlotte Fenioux, MD
- Recruiting
Centre Georges Francois Leclerc
Dijon
Francois GHIRINGHELLI, MD
- Not yet recruiting
Centre Hospitalier Universitaire Grenoble Alpes - Site Nord - Hopital Michallon
La Tronche
Gaël ROTH, MD
- Recruiting
Centre Hospitalier Universitaire de Lille
Lille
Anthony TURPIN, MD
- Recruiting
Hopital Leon Berard
Lyon
Clelia COUTZAC, MD
- Not yet recruiting
Hopital Prive Jean Mermoz
Lyon
Pascal ARTRU, MD
- Not yet recruiting
Hopital La Timone
Marseille
Laëtitia DAHAN, MD
- Not yet recruiting
Centre Hospitalier Universitaire de Montpellier
Montpellier
Eric ASSENAT, MD
- Not yet recruiting
Centre Hospitalier Universitaire Nantes - Hopital Hotel Dieu
Nantes
Tamara MATYSIAK-BUDNIK, MD
- Recruiting
Centre Antoine Lacassagne
Nice
Ludovic Evesque, MD
- Not yet recruiting
Centre Hospitalier Cochin
Paris
Anna PELLAT, MD
- Not yet recruiting
Groupe Hospitalier Diaconesses Croix Saint-Simon
Paris
Olivier DUBREUIL, MD
- Not yet recruiting
Hopital Europeen Georges Pompidou
Paris
Aziz Zaanan, MD
- Recruiting
Hopital Saint Antoine
Paris
Romain COHEN, MD
- Not yet recruiting
Hopital Saint-Louis
Paris
Thomas APARICIO, MD
- Not yet recruiting
Institut Curie
Paris
Cindy NEUZILLET, MD
- Not yet recruiting
Institut Gustave Roussy
Paris
Cristina SMOLENSCHI, MD
- Not yet recruiting
Institut Mutualiste Montsouris
Paris
Emilie SOULARUE, MD
- Recruiting
Centre Hospitalier Universitaire de Poitiers - Hopital de La Miletrie
Poitiers
David TOUGERON, MD
- Recruiting
Centre Hospitalier Universitaire Reims Hopital Robert Debre
Reims
Olivier BOUCHE, MD
- Not yet recruiting
Institut Jean Godinot
Reims
Damien BOTSEN, MD
- Not yet recruiting
Centre Hospitalier Universitaire de Rennes
Rennes
Astrid LIEVRE, MD
- Not yet recruiting
Hopital D'Instruction Des Armées Bégin
Saint-Mandé
Julie LAVOLE, MD
- Not yet recruiting
Centre Hospitalier Saint-Malo
St-Malo
Romain DESGRIPPES, MD
- Not yet recruiting
Institut de Cancerologie Strasbourg Europe
Strasbourg
Meher BEN ABDELGHANI, MD
- Not yet recruiting
Centre Hospitalier Universitaire Tours - Hopital Trousseau
Tours
Elise DOUARD TOURNET, MD
- Not yet recruiting
CENTRE HOSPITALIER REGIONAL UNIVERSITAIRE DE NANCY Site Brabois
Vandœuvre-lès-Nancy
Marie MULLER, MD
- Recruiting
Hopital Paul Brousse
Villejuif
Pascal Hammel, MD
- Not yet recruiting
Medipole Hopital Mutualiste Lyon-Villeurbanne
Villeurbanne
Mathieu SARABI, MD
About this study
Official title: Gut Microbiome Intervention With EXL01 in Combination With Nivolumab and FOLFOX as First-line Treatment for Patients With PD-L1 CPS ≥5 Metastatic Gastric Cancer: A Randomized GERCOR Phase II Study (BIG)
This is a randomized non-comparative, multicenter phase II study in patients with PD-L1 PD-L1 combined positive score (CPS) ≥5 advanced gastric cancer to evaluate the efficacy and safety of nivolumab and FOLFOX in combination with EXL01 as first-line treatment.
After signing the informed consent form, and upon confirmation of the patient's eligibility, patients will be randomized in a 2:1 ratio to either the nivolumab and FOLFOX plus EXL01 arm (experimental) or the nivolumab and FOLFOX arm (control). In both arms, treatment will be given until PD, unacceptable toxicity or for a maximum of 24 months (52 cycles).
Read the detailed description
The primary objective of the study is to assess the objective response rate (ORR) at 4 months (based on Response Evaluation Criteria in Solid Tumor [RECIST] criteria v1.1) of patients with PD-L1 CPS ≥ 5 advanced gastric cancer treated by EXL01 plus nivolumab and FOLFOX as first-line treatment.
With a randomization ratio of 2:1 it will be necessary to randomize 40 patients in the control arm, 80 patients in the experimental arm and so a total of 120 evaluable patients in the study. Randomization will be stratified by PD-L1 expression level, center, and prior gastrectomy.
In the experimental arm, the primary analysis will be on modified intent-to-treat (mITT) population. Confirmative analysis will be conducted firstly in the ITT population and secondly, in the Per Protocol (PP). Analyses of safety will be conducted in safety population.
The Kaplan-Meier method will be used to estimate time to event endpoints and described using the median and event-free rates over time with CI.
- Conditions
- Gastric Cancer
- Being tested
- Nivolumab, FOLFOX regimen, EXL01
- Medical subject headings
- Stomach Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
NivolumabDrug
Also called Opdivo
Nivolumab 240 mg IV; every 2 weeks
FOLFOX regimenDrug
Also called Leucovorin, fluorouracil, and oxaliplatin
Oxaliplatin 85 mg/m², leucovorin 400 mg/m², bolus of 5-FU 400 mg/m², continuous 5-FU 2400/m² in 46 hours; every 2 weeks
EXL01Biological
Orally 1 capsule/day, starting on day 1 of each FOLFOX/nivolumab treatment.
| Study group | Role | What they receive |
|---|---|---|
| Nivolumab Combined With FOLFOX and EXL01 | Experimental | Nivolumab 240 mg IV q2w and FOLFOX q2w plus EXL01 orally once daily Receives: Drug: Nivolumab; Drug: FOLFOX regimen; Biological: EXL01 |
| Nivolumab and FOLFOX | Active comparator | Nivolumab 240 mg IV q2w and FOLFOX q2w Receives: Drug: Nivolumab; Drug: FOLFOX regimen |
What is being measured
The primary outcome is the main question the study is designed to answer.
Objective response rate (ORR) at 4 months
ORR measured at 4 months post randomization in patients with PD-L1 CPS ≥5 advanced gastric cancer treated by first-line EXL01 plus nivolumab and FOLFOX. ORR at 4 months is defined as the number of patients with a CR or PR evaluated by RECIST v 1.1 criteria divided by the number of patients evaluable.
Measured: At 4 months
Secondary outcomes (7)
Overall survival (OS)
OS with nivolumab plus FOLFOX with or without EXL01. OS is defined as the time between the date of randomization and the date of death from any cause.
Measured: Maximum 3 years after randomization
Progression-free survival (PFS)
PFS per RECIST v 1.1 and iRECIST of nivolumab plus FOLFOX with or without EXL01.
PFS is defined as the time from randomization to the date of the first documented PD determined by the Investigator assessment by RECIST 1.1 or death due to any cause, whichever occurs first.
Measured: Maximum 3 years after randomization
Assessment of safety profile
Safety of nivolumab plus FOLFOX with or without EXL01. Safety will be measured by the incidence of Adverse Events (AEs), Serious AEs (SAEs), deaths, laboratory abnormalities, and specific immune-related AEs (hepatitis, colitis, myositis, endocrinopathies).
Measured: Maximum 3 years after randomization
Duration of response (DoR)
DoR with FOLFOX plus nivolumab with or without EXL01. DoR is defined as the time between the date of first documented response (complete response [CR] or partial response [PR]) to the date of the first disease progression, per RECIST 1.1 or death due to any cause, whichever occurs first. For patients who neither progress nor die, the duration of objective response will be censored at the same time they were censored for the primary definition of PFS.
Measured: Maximum 3 years after randomization
Objective response rate (ORR)
ORR per RECIST v 1.1 criteria nivolumab plus FOLFOX with or without EXL01. ORR is defined as the number of patients with the best overall response (BOR) of CR or PR divided by the number of measurable patients with target lesion at baseline. BOR is defined as the best response designation, recorded between the date of randomization and the date of objectively documented progression (per RECIST 1.1) or the date of subsequent anti-cancer therapy, whichever occurs first.
Measured: Maximum 3 years after randomization
2-year and 3-year OS
2-year and 3-year OS rate of nivolumab plus FOLFOX with or without EXL01
Measured: At 2 years and 3 years
1-year and 2-year PFS
1-year and 2-year PFS rates per RECIST v 1.1 and iRECIST (immune RECIST) criteria with nivolumab plus FOLFOX with or without EXL01
Measured: At 1 year and at 2 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted12 Feb 2024
- Study start16 Apr 2024
- Primary completionSep 2027 (estimated)
- Study completionApr 2029 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Gastric CancerStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 120 participants (estimated)
Sponsor and investigators
- Lead sponsor
- GERCOR - Multidisciplinary Oncology Cooperative Group
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Romain Cohen, MD, Principal investigator, Saint-Antoine Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06253611
- Sponsor's protocol ID
- BIG G-122 PRODIGE 94
- Acronym
- BIG
- Status last verified
- Sep 2025
- First submitted
- 31 Jan 2024
- Last updated
- 22 Sep 2025
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 22 Sep 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Gut Microbiome Intervention With EXL01 in Combination With Nivolumab and FOLFOX as First-line Treatment for Patients With PD-L1 CPS ≥5 Metastatic Gastric Cancer: A Randomized GERCOR Phase II Study (BIG)
- ClinicalTrials.gov ID
- NCT06253611
- Acronym / sponsor ID
- BIG / BIG G-122 PRODIGE 94
- Conditions
- Gastric Cancer
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 120 participants (estimated)
- Lead sponsor
- GERCOR - Multidisciplinary Oncology Cooperative GroupUniversity, hospital or other
- Study start
- 16 Apr 2024 (actual)
- Primary completion
- Sep 2027 (estimated)
- Study completion
- Apr 2029 (estimated)
- First posted
- 12 Feb 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This is a randomized non-comparative, multicenter phase II study in patients with PD-L1 PD-L1 combined positive score (CPS) ≥5 advanced gastric cancer to evaluate the efficacy and safety of nivolumab and FOLFOX in combination with EXL01 as first-line treatment.
After signing the informed consent form, and upon confirmation of the patient's eligibility, patients will be randomized in a 2:1 ratio to either the nivolumab and FOLFOX plus EXL01 arm (experimental) or the nivolumab and FOLFOX arm (control). In both arms, treatment will be given until PD, unacceptable toxicity or for a maximum of 24 months (52 cycles).
Detailed description
The primary objective of the study is to assess the objective response rate (ORR) at 4 months (based on Response Evaluation Criteria in Solid Tumor [RECIST] criteria v1.1) of patients with PD-L1 CPS ≥ 5 advanced gastric cancer treated by EXL01 plus nivolumab and FOLFOX as first-line treatment.
With a randomization ratio of 2:1 it will be necessary to randomize 40 patients in the control arm, 80 patients in the experimental arm and so a total of 120 evaluable patients in the study. Randomization will be stratified by PD-L1 expression level, center, and prior gastrectomy.
In the experimental arm, the primary analysis will be on modified intent-to-treat (mITT) population. Confirmative analysis will be conducted firstly in the ITT population and secondly, in the Per Protocol (PP). Analyses of safety will be conducted in safety population.
The Kaplan-Meier method will be used to estimate time to event endpoints and described using the median and event-free rates over time with CI.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Nivolumab Combined With FOLFOX and EXL01 | Experimental | Drug: Nivolumab, Drug: FOLFOX regimen, Biological: EXL01Nivolumab 240 mg IV q2w and FOLFOX q2w plus EXL01 orally once daily |
| Nivolumab and FOLFOX | Active comparator | Drug: Nivolumab, Drug: FOLFOX regimenNivolumab 240 mg IV q2w and FOLFOX q2w |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (31 listed)
- Patients must have dated and signed an approved written informed consent form. This must be obtained before the performance of any protocol-related procedures that are not part of normal patient care.
- Patients must be willing and able to comply with scheduled visits, treatment schedule, laboratory tests and other requirements of the study,
- Target Population
- Inoperable, advanced, or metastatic gastric cancer or gastroesophageal junction or distal esophageal carcinoma and histologically confirmed predominant adenocarcinoma,
- Expression of PD-L1 with a combined positive score (PD-L1 CPS) ≥5, Note: information must be available at the time of inclusion, the examination will be performed locally in the center and secondarily confirmed centrally,
Key exclusion criteria (47 listed)
- Target Disease Exceptions
- Known HER-2 positive status or unknown HER-2 status before inclusion,
- Active brain metastases or known history of leptomeningeal carcinomatosis,
- Ascites, which cannot be controlled with appropriate interventions,
- Exclusion criteria related to medical history and concurrent disease
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| NivolumabAlso: OpdivoNivolumab 240 mg IV; every 2 weeks | Drug | Nivolumab Combined With FOLFOX and EXL01, Nivolumab and FOLFOX |
| FOLFOX regimenAlso: Leucovorin, fluorouracil, and oxaliplatinOxaliplatin 85 mg/m², leucovorin 400 mg/m², bolus of 5-FU 400 mg/m², continuous 5-FU 2400/m² in 46 hours; every 2 weeks | Drug | Nivolumab Combined With FOLFOX and EXL01, Nivolumab and FOLFOX |
| EXL01Orally 1 capsule/day, starting on day 1 of each FOLFOX/nivolumab treatment. | Biological | Nivolumab Combined With FOLFOX and EXL01 |
Primary outcome
Objective response rate (ORR) at 4 months
Time frame: At 4 months
ORR measured at 4 months post randomization in patients with PD-L1 CPS ≥5 advanced gastric cancer treated by first-line EXL01 plus nivolumab and FOLFOX. ORR at 4 months is defined as the number of patients with a CR or PR evaluated by RECIST v 1.1 criteria divided by the number of patients evaluable.
7 secondary outcomes
Overall survival (OS)
Time frame: Maximum 3 years after randomization
Progression-free survival (PFS)
Time frame: Maximum 3 years after randomization
Assessment of safety profile
Time frame: Maximum 3 years after randomization
Duration of response (DoR)
Time frame: Maximum 3 years after randomization
Objective response rate (ORR)
Time frame: Maximum 3 years after randomization
2-year and 3-year OS
Time frame: At 2 years and 3 years
1-year and 2-year PFS
Time frame: At 1 year and at 2 years
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 22 Sep 2025.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Romain Cohen, MD principal investigator
Saint-Antoine Hospital
37 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Nivolumab, FOLFOX regimen and EXL01 in people with Gastric Cancer, run by GERCOR - Multidisciplinary Oncology Cooperative Group at 37 sites in France.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 31 inclusion and 47 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 22 Sep 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 37 sites in France. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Marie-Line GARCIA LARNICOL, MD (+33 (01) 40 29 85 04, marie-line.garcia-larnicol@gercor.com.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Objective response rate (ORR) at 4 months (time frame: At 4 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Sep 2025.