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RecruitingNCT05702229Updated May 14, 2026

Novel Combinations in Participants With Locally Advanced Unresectable or Metastatic Gastric or Gastroesophageal Junction Adenocarcinoma

A Phase 2 interventional study of Rilvegostomig and Volrustomig in Gastric Cancer, sponsored by AstraZeneca. Recruiting at 44 sites in 7 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-05-14.

Sponsored by AstraZeneca · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Started Jan 2023; still recruiting 3 years 8 months later.
Phase
Phase 2
Study type
Interventional
Enrollment
163
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study summary

This is a Phase II, open-label, multi-drug, multi-centre study designed to assess the efficacy, safety, tolerability, pharmacokinetics, and immunogenicity of novel combination therapies in participants with locally advanced unresectable or metastatic gastric or GEJ adenocarcinoma.

Read the detailed description

Approximately 360 participants will be assigned across 4 substudies, with approximately 60 evaluable participants of the confirmed recommend dose by SRC for study intervention in each corresponding substudy/cohort.

02

Conditions studied

  • Gastric Cancer

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Keywords

  • Locally advanced
  • Metatstatic
  • Gastric adenocarcinoma
  • GEJ adenocarcinoma
  • GEMINI-Gastric
03

In context

Stomach Neoplasms

2,851 studies on the registry are indexed under Stomach Neoplasms; 864 are open to participants now.

This study's planned enrollment of 163 is above the median of 67 across 2,096 interventional studies indexed under Stomach Neoplasms.

Browse Stomach Neoplasms studies →

Lead sponsor

AstraZeneca is the lead sponsor of 3,429 studies on the registry; 270 are open to participants now.

Of its 357 completed or terminated interventional studies of FDA-regulated products, 173 (48%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • 18 years or older at the time of signing the ICF.
  • Body weight > 35 kg.
  • Previously untreated for unresectable or metastatic gastric or gastroesophageal junction adenocarcinoma.
  • Has measurable target disease assessed by the Investigator based on RECIST 1.1.
  • ECOG PS zero or one.
  • Life expectancy of at least 12 weeks.
  • Adequate organ and bone marrow function.
  • Has central lab confirmed Claudin18.2 status at screening from archival tumour collected within past 24 months or from a fresh biopsy when Substudy 3, Substudy 4 i s open for recruitment.

Exclusion criteria

Exclusion Criteria:

  • Participants with HER2-positive (3+ by IHC, or 2+ by IHC and positive by in situhybridisation) or indeterminate gastric or GEJ carcinoma.
  • Untreated or progressive CNS metastatic disease, any leptomeningeal disease, or cord compression.
  • Participants with ascites which cannot be controlled with appropriate interventions.
  • Active infectious diseases, including tuberculosis, HIV infection, or hepatitis B/C.
  • Uncontrolled intercurrent illness.
  • Active or prior documented autoimmune or inflammatory disorders requiring systemic treatment with steroids or other immunosuppressive treatment.
  • History of another primary malignancy.
  • Previous treatment with an immune-oncology agent.
  • Previous treatment with any modalities of Claudin18.2 target therapy or MMAE exposure (when Substudy 3, Substudy 4 is open for recruitment).
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
163 participants (estimated)

Study arms

  • Experimental
    Substudy 1

    Volrustomig plus XELOX (oxaliplatin and capecitabine) or FOLFOX (oxaliplatin and 5-FU/CF)

    Drug: Volrustomig · Drug: FOLFOX · Drug: XELOX

  • Experimental
    Substudy 2

    Rilvegostomig plus XELOX (oxaliplatin and capecitabine) or FOLFOX (oxaliplatin and 5-FU/CF)

    Drug: Rilvegostomig · Drug: FOLFOX · Drug: XELOX

  • Experimental
    Substudy 3

    AZD0901 plus volrustomig and 5-fluorouracil or capecitabine

    Drug: Volrustomig · Drug: AZD0901 · Drug: 5-Fluorouracil · Drug: Capecitabine

  • Experimental
    Substudy 4, Cohort 4a1

    Sonesitatug vedotin (AZD0901) plus rilvegostomig and 5-fluorouracil or capecitabine

    Drug: Rilvegostomig · Drug: AZD0901 · Drug: 5-Fluorouracil · Drug: Capecitabine

  • Experimental
    Substudy 4, Cohort 4a2

    Sonesitatug vedotin (AZD0901) plus rilvegostomig and 5-fluorouracil

    Drug: Rilvegostomig · Drug: AZD0901 · Drug: 5-Fluorouracil

  • Experimental
    Substudy 4, Cohort 4b

    Sonesitatug vedotin (AZD0901) plus capecitabine

    Drug: AZD0901 · Drug: Capecitabine

Interventions

  • DrugRilvegostomig

    an anti PD-1 and anti-TIGIT bispecific antibody; IV infusion

  • DrugVolrustomig

    an anti PD-1 and anti CTLA-4 bispecific antibody; IV infusion

  • DrugFOLFOX

    5-fluorouracil oxaliplatin, leucovorin (levoleucovorin when locally preferred and available)

  • DrugXELOX

    capecitabine and oxaliplatin

  • DrugAZD0901

    an anti Claudin18.2 ADC; IV infusion

  • Drug5-Fluorouracil

    5-FU, IV infusion

  • DrugCapecitabine

    Oral take

06

What researchers measure

Primary outcomes

  1. ORR (per RECIST 1.1 as assessed by Investigator)

    the proportion of participants who have a confirmed complete response or confirmed partial response, as determined by the Investigator at local site per RECIST 1.1.

    Time frame: Through substudy completion, an average of 2 years

  2. PFS6 (per RECIST 1.1 as assessed by Investigator)

    the proportion of participants alive and progression-free at 6 months.

    Time frame: Through substudy completion, an average of 2 years

Secondary outcomes

  1. PFS per RECIST 1.1 as assessed by the Investigator

    the time from the start of study intervention until progression per RECIST 1.1 as assessed by the Investigator at the local site or death due to any cause in the absence of progression.

    Time frame: Through substudy completion, an average of 2 years

  2. OS

    the time from the start of study intervention until the date of death due to any cause.

    Time frame: Through substudy completion, an average of 2 years

  3. other safety related endpoints

    Incidence of AEs, AESIs, and SAEs.

    Time frame: Through substudy completion, an average of 2 years

  4. DoR per RECIST 1.1 based on Investigator assessment.

    the time from the date of first documented confirmed response until date of documented progression per RECIST 1.1 by the Investigator at local site or death due to any cause in the absence of disease progression.

    Time frame: Through substudy completion, an average of 2 years

07

Study locations

35 of 44 sites recruiting
  • Research Site
    Los Angeles, California 90017, United States
    Recruiting
  • Research Site
    Los Angeles, California 90095, United States
    Withdrawn
  • Research Site
    Baton Rouge, Louisiana 70817, United States
    Recruiting
  • Research Site
    Grand Rapids, Michigan 49503, United States
    Recruiting
  • Research Site
    New Hyde Park, New York 11042, United States
    Withdrawn
  • Research Site
    New York, New York 10028, United States
    Withdrawn
  • Research Site
    New York, New York 10065, United States
    Recruiting
  • Research Site
    New York, New York 11210, United States
    Withdrawn
  • Research Site
    Shirley, New York 11967, United States
    Withdrawn
  • Research Site
    The Bronx, New York 10469, United States
    Withdrawn
  • Research Site
    Pittsburgh, Pennsylvania 15212, United States
    Withdrawn
  • Research Site
    Beijing, 100142, China
    Recruiting
  • Research Site
    Hangzhou, 310003, China
    Recruiting
  • Research Site
    Hangzhou, 310020, China
    Recruiting
  • Research Site
    Harbin, 150081, China
    Recruiting
  • Research Site
    Hefei, 230031, China
    Recruiting
  • Research Site
    Kunming, 650118, China
    Completed
  • Research Site
    Wuhan, 430079, China
    Recruiting
  • Research Site
    Yinchuan, 750004, China
    Recruiting
  • Research Site
    Zhengzhou, 450052, China
    Recruiting
  • Research Site
    Chūōku, 104-0045, Japan
    Recruiting
  • Research Site
    Kashiwa, 227-8577, Japan
    Recruiting
  • Research Site
    Sunto-gun, 411-8777, Japan
    Recruiting
  • Research Site
    Seoul, 03080, South Korea
    Recruiting
  • Research Site
    Seoul, 03722, South Korea
    Recruiting
  • Research Site
    Seoul, 05505, South Korea
    Recruiting
  • Research Site
    Seoul, 06351, South Korea
    Recruiting
  • Research Site
    Barcelona, 08035, Spain
    Recruiting
  • Research Site
    Elche(Alicante), 03202, Spain
    Recruiting
  • Research Site
    L'Hospitalet de Llobregat, 08908, Spain
    Recruiting
  • Research Site
    Madrid, 28007, Spain
    Recruiting
  • Research Site
    Madrid, 28040, Spain
    Recruiting
  • Research Site
    Santander, 39008, Spain
    Recruiting
  • Research Site
    Hsinchu, 300, Taiwan
    Recruiting
  • Research Site
    Kaohsiung City, 80756, Taiwan
    Recruiting
  • Research Site
    Taichung, 404, Taiwan
    Recruiting
  • Research Site
    Tainan, 70403, Taiwan
    Recruiting
  • Research Site
    Taipei, 10002, Taiwan
    Recruiting
  • Research Site
    Taipei, 11259, Taiwan
    Recruiting
  • Research Site
    Taoyuan, 333, Taiwan
    Recruiting
  • Research Site
    Edinburgh, EH4 2XU, United Kingdom
    Withdrawn
  • Research Site
    Leeds, LS9 7TF, United Kingdom
    Recruiting
  • Research Site
    London, EC1M 6BQ, United Kingdom
    Recruiting
  • Research Site
    Oxford, OX3 7LE, United Kingdom
    Recruiting
08

References and documents

Individual participant data

Plan to share: Yes — Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal. All request will be evaluated as per the AZ disclosure commitment: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure. Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 14, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05702229
Lead sponsor
AstraZeneca
Responsible party
Sponsor
First posted
Jan 27, 2023
Start date
Jan 16, 2023
Primary completion
Nov 30, 2027 (estimated)
Completion
May 31, 2029 (estimated)
Last update
May 14, 2026

Study contacts

AstraZeneca Clinical Study Information Center
Contact
information.center@astrazeneca.com
1-877-240-9479

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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