NCT05329766

Brief Summary

The purpose of this study is to evaluate the safety and preliminary clinical activity of treatment combinations with and without chemotherapy in participants with locally advanced unresectable or metastatic gastric, GEJ, and esophageal adenocarcinoma. Chemotherapy will consist of FOLFOX (oxaliplatin, leucovorin, fluorouracil).

Trial Health

82
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
332

participants targeted

Target at P75+ for phase_2

Timeline
13mo left

Started Jun 2022

Longer than P75 for phase_2

Geographic Reach
6 countries

42 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress79%
Jun 2022Jun 2027

First Submitted

Initial submission to the registry

April 8, 2022

Completed
7 days until next milestone

First Posted

Study publicly available on registry

April 15, 2022

Completed
2 months until next milestone

Study Start

First participant enrolled

June 10, 2022

Completed
4.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2027

Expected
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2027

Last Updated

April 29, 2026

Status Verified

April 1, 2026

Enrollment Period

4.6 years

First QC Date

April 8, 2022

Last Update Submit

April 28, 2026

Conditions

Keywords

DomvanalimabQuemliclustatZimberelimabEsophageal adenocarcinomaGastric adenocarcinomaGastric cancerGastroesophageal junction cancerAnti-PD-1 antibodyAnti-CD73anti-TIGIT antibody

Outcome Measures

Primary Outcomes (2)

  • Number of Participants with Adverse Events (AEs)

    Up to 18 months

  • Objective Response Rate (ORR) as measured by Response Evaluation Criteria in Solid Tumors (RECIST) v1.1

    Up to 18 months

Secondary Outcomes (10)

  • Objective Response Rate (ORR) as measured by PD-L1 Expression Level

    Up to 18 months

  • Overall survival (OS)

    From date of first dose until the date of death due to any cause (approximately 18 months)

  • Progression-free survival (PFS) as determined by the Investigator according to RECIST v1.1

    Up to 18 months

  • Disease Control (complete response, partial response, or stable disease) for greater than equal to 12 weeks

    Up to 18 months

  • Duration of response (DOR) as determined by the Investigator according to RECIST v1.1

    Up to 18 months

  • +5 more secondary outcomes

Study Arms (7)

A1: First Line - Treatment Naïve Participants

EXPERIMENTAL

Domvanalimab and zimberelimab once every 4 weeks (Q4W) in addition to FOLFOX chemotherapy by intravenous (IV) infusion once every 2 weeks (Q2W)

Drug: DomvanalimabDrug: ZimberelimabDrug: FluorouracilDrug: LeucovorinDrug: Oxaliplatin

A2: First Line - Treatment Naïve Participants

EXPERIMENTAL

Zimberelimab Q4W in addition to chemotherapy with FOLFOX administered by IV infusion Q2W

Drug: ZimberelimabDrug: FluorouracilDrug: LeucovorinDrug: Oxaliplatin

A3 First Line - Treatment Naïve Participants

EXPERIMENTAL

Non-randomized A3 safety run-in cohort: Domvanalimab and zimberelimab co-administered Q4W via IV infusion over 60 minutes in addition to FOLFOX chemotherapy via IV infusion Q2W. After completion of A3 safety run-in cohort, participants are randomized to the A3 arm. Domvanalimab and zimberelimab co-administered Q4W via IV infusion over 30 minutes, in addition to FOLFOX chemotherapy via IV infusion Q2W

Drug: DomvanalimabDrug: ZimberelimabDrug: FluorouracilDrug: LeucovorinDrug: Oxaliplatin

A4 First Line - Treatment Naïve Participants

EXPERIMENTAL

Zimberelimab administered Q4W via IV infusion over 30 minutes, in addition to FOLFOX chemotherapy via IV infusion Q2W

Drug: ZimberelimabDrug: FluorouracilDrug: LeucovorinDrug: Oxaliplatin

B1: Second Line or greater Checkpoint Inhibitor Naïve Participants

EXPERIMENTAL

Domvanalimab and zimberelimab administered once every three weeks (Q3W) by IV infusion

Drug: DomvanalimabDrug: Zimberelimab

B2: Second Line or greater Checkpoint Inhibitor Naïve Participants

EXPERIMENTAL

Quemliclustat Q2W and zimberelimab Q4W administered by IV infusion

Drug: QuemliclustatDrug: Zimberelimab

Cohort C1: Second Line or greater - Checkpoint Inhibitor Experienced Participants

EXPERIMENTAL

Domvanalimab and zimberelimab Q3W administered by IV infusion

Drug: DomvanalimabDrug: Zimberelimab

Interventions

Administered as specified in the treatment arm

A1: First Line - Treatment Naïve ParticipantsA3 First Line - Treatment Naïve ParticipantsB1: Second Line or greater Checkpoint Inhibitor Naïve ParticipantsCohort C1: Second Line or greater - Checkpoint Inhibitor Experienced Participants

Administered as specified in the treatment arm

B2: Second Line or greater Checkpoint Inhibitor Naïve Participants

Administered as specified in the treatment arm

A1: First Line - Treatment Naïve ParticipantsA2: First Line - Treatment Naïve ParticipantsA3 First Line - Treatment Naïve ParticipantsA4 First Line - Treatment Naïve ParticipantsB1: Second Line or greater Checkpoint Inhibitor Naïve ParticipantsB2: Second Line or greater Checkpoint Inhibitor Naïve ParticipantsCohort C1: Second Line or greater - Checkpoint Inhibitor Experienced Participants

Administered as specified in the treatment arm

A1: First Line - Treatment Naïve ParticipantsA2: First Line - Treatment Naïve ParticipantsA3 First Line - Treatment Naïve ParticipantsA4 First Line - Treatment Naïve Participants

Administered as specified in the treatment arm

A1: First Line - Treatment Naïve ParticipantsA2: First Line - Treatment Naïve ParticipantsA3 First Line - Treatment Naïve ParticipantsA4 First Line - Treatment Naïve Participants

Administered as specified in the treatment arm

A1: First Line - Treatment Naïve ParticipantsA2: First Line - Treatment Naïve ParticipantsA3 First Line - Treatment Naïve ParticipantsA4 First Line - Treatment Naïve Participants

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Participants with histologically confirmed diagnosis of locally advanced unresectable or metastatic gastric, GEJ, or esophageal adenocarcinoma with life expectancy ≥3 months as assessed by the Investigator
  • Eastern cooperative oncology group (ECOG) Performance Score of 0-1
  • At least one measurable target lesion per RECIST v1.1.
  • Adequate organ and marrow function
  • Able to provide an archival tumor sample that is representative of the cancer under investigation and suitable for central PD-L1 testing

You may not qualify if:

  • Participants with underlying medical conditions that, in the Investigator's or Sponsor's opinion, will make the administration of investigational products hazardous
  • Only for Cohort A: Known Human Epidermal Growth Factor Receptor 2 (HER-2) positive tumor
  • Known untreated, symptomatic, or actively progressing central nervous system (brain) metastases. Participants with leptomeningeal metastases are excluded from enrollment.
  • Discontinued use of prior immune checkpoint therapy due to immune related adverse events; received prior treatment with an anti-TIGIT monoclonal antibody.
  • History of trauma or major surgery within 28 days prior to enrollment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (42)

Research Site

Phoenix, Arizona, 85054, United States

Location

Research Site

Los Angeles, California, 90033, United States

Location

Research Site

Santa Monica, California, 90024, United States

Location

Research Site

Derby, Connecticut, 06418, United States

Location

Research Site

Fort Myers, Florida, 33901, United States

Location

Research Site

Jacksonville, Florida, 32224, United States

Location

Research Site

St. Petersburg, Florida, 33705, United States

Location

Research Site

Boston, Massachusetts, 02109, United States

Location

Research Site

New York, New York, 10021-0005, United States

Location

Research Site

New York, New York, 10032, United States

Location

Research Site

Durham, North Carolina, 27710, United States

Location

Research Site

Columbus, Ohio, 43219, United States

Location

Research Site

Oklahoma City, Oklahoma, 73104, United States

Location

Research Site

Nashville, Tennessee, 37203, United States

Location

Research Site

Nashville, Tennessee, 37232, United States

Location

Research Site

Fairfax, Virginia, 22031, United States

Location

Research Site

Toronto, Canada

Location

Research Site

Las Condes, Chile

Location

Research Site

Recoleta, Chile

Location

Research Site

Santiago, Chile

Location

Research Site

Talca, Chile

Location

Research Site

Bordeaux, France

Location

Research Site

Brest, France

Location

Research Site

Caen, France

Location

Research Site

Lille, France

Location

Research Site

Lyon, France

Location

Research Site

Marseille, France

Location

Research Site

Montpellier, France

Location

Research Site

Plérin, France

Location

Research Site

Poitiers, France

Location

Research Site

Rouen, France

Location

Research Site

Toulouse, France

Location

Research Site

Villejuif, France

Location

Research Site

Belgrade, Serbia

Location

Research Site

Kamenitz, Serbia

Location

Research Site

Kragujevac, Serbia

Location

Research Site

Busan, South Korea

Location

Research Site

Daegu, South Korea

Location

Research Site

Hwasun, South Korea

Location

Research Site

Seongnam-si, South Korea

Location

Research Site

Seoul, South Korea

Location

Research Site

Suwon, South Korea

Location

Related Publications (1)

  • Janjigian YY, Oh DY, Pelster M, Wainberg ZA, Prusty S, Nelson S, DuPage A, Thompson A, Koralek DO, Sison EAR, Rha SY. Domvanalimab and zimberelimab in advanced gastric, gastroesophageal junction or esophageal cancer: a phase 2 trial. Nat Med. 2025 Dec;31(12):4274-4280. doi: 10.1038/s41591-025-04022-w. Epub 2025 Oct 18.

Related Links

MeSH Terms

Conditions

Adenocarcinoma Of EsophagusStomach Neoplasms

Interventions

quemliclustatzimberelimabFluorouracilLeucovorinOxaliplatin

Condition Hierarchy (Ancestors)

Gastrointestinal NeoplasmsDigestive System NeoplasmsNeoplasms by SiteNeoplasmsDigestive System DiseasesGastrointestinal DiseasesStomach Diseases

Intervention Hierarchy (Ancestors)

UracilPyrimidinonesPyrimidinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsFormyltetrahydrofolatesTetrahydrofolatesFolic AcidPterinsPteridinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingCoenzymesEnzymes and CoenzymesCoordination ComplexesOrganic Chemicals

Study Officials

  • Medical Director

    Arcus Biosciences, Inc.

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 8, 2022

First Posted

April 15, 2022

Study Start

June 10, 2022

Primary Completion (Estimated)

January 1, 2027

Study Completion (Estimated)

June 1, 2027

Last Updated

April 29, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will share

Arcus will provide access to individual de-identified participant data and related study documents (e.g., protocol, Statistical Analysis Plan \[SAP\], Clinical Study Report \[CSR\]) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. For more information, please visit our website.

Shared Documents
STUDY PROTOCOL, SAP, CSR
More information

Locations