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Zimberelimab and Domvanalimab in Combination With Chemotherapy Versus Pembrolizumab With Chemotherapy in Patients With Untreated Metastatic Non-Small Cell Lung Cancer

A Randomized, Open-Label, Phase 3 Study to Evaluate Zimberelimab and Domvanalimab in Combination With Chemotherapy Versus Pembrolizumab With Chemotherapy for the First-Line Treatment of Patients With Metastatic Non-Small Cell Lung Cancer With No Epidermal Growth Factor Receptor or Anaplastic Lymphoma Kinase Genomic Tumor Aberrations

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05502237
Acronym
STAR-121
Enrollment
1021
Registered
2022-08-16
Start date
2022-10-12
Completion date
2029-01-01
Last updated
2026-01-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Non-small Cell Lung Cancer

Brief summary

The primary objective of this study is to compare the effect of zimberelimab (ZIM) and domvanalimab (DOM) in combination with chemotherapy relative to pembrolizumab (PEMBRO) in combination with chemotherapy on overall survival (OS) in patients with untreated metastatic non-small cell lung cancer with no actionable genomic alteration.

Interventions

DRUGNab-paclitaxel

Administered intravenously

DRUGPemetrexed

Administered intravenously

DRUGZimberelimab

Administered intravenously

DRUGDomvanalimab

Administered intravenously

DRUGPembrolizumab

Administered intravenously

DRUGCarboplatin

Administered intravenously

DRUGCisplatin

Administered intravenously

DRUGPaclitaxel

Administered intravenously

Sponsors

Gilead Sciences
Lead SponsorINDUSTRY
Arcus Biosciences, Inc.
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: * Life expectancy ≥ 3 months. * Pathologically documented NSCLC that meets both of the criteria below: * Have documented evidence of Stage IV NSCLC disease at the time of enrollment (based on American Joint Committee on Cancer (AJCC), Eighth Edition). * Have documented negative test results for epidermal growth factor receptor (EGFR) and anaplastic lymphoma kinase (ALK) mutations. * Have no actionable genomic alterations such as ROS proto-oncogene 1 (ROS1), neurotrophic tyrosine receptor kinase (NTRK), proto-oncogene B-raf (BRAF), RET mutations, or other driver oncogenes with approved frontline therapies. * Have not received prior systemic treatment for metastatic NSCLC. * Measurable disease per RECIST v1.1 criteria by investigator assessment. * Eastern Cooperative Oncology Group performance status (ECOG PS) score of 0 or 1. * Have adequate organ functions. Key

Exclusion criteria

* Have mixed small-cell lung cancer (SCLC) and NSCLC histology. * Positive serum pregnancy test or individuals who are breastfeeding or have plans to breastfeed during the study period. * Received prior treatment with any anti-PD-1, anti-PD-L1, or any other antibody targeting an immune checkpoint. * Known hypersensitivity to the study drug, its metabolites, or formulation excipient. * Have an active second malignancy or have had an active second malignancy within 3 years prior to enrollment. * Have an active autoimmune disease that required systemic treatment in past 2 years (i.e., with use of disease-modifying agents, corticosteroids, or immunosuppressive drugs). * Are receiving chronic systemic steroids. * Have significant third-space fluid retention. * Have untreated central nervous system (CNS) metastases and/or carcinomatous meningitis. * Active chronic inflammatory bowel disease (ulcerative colitis, Crohn's disease) or gastrointestinal perforation within 6 months of enrollment. * Has a history of (noninfectious) pneumonitis/interstitial lung disease that required steroids or has current pneumonitis/interstitial lung disease. * Has had an allogenic tissue/solid organ transplant. * Have received a live-virus vaccination within 30 days of planned treatment start. Seasonal flu and COVID-19 vaccines that do not contain live virus are permitted. * Have known active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection. Note: Other protocol defined Inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Overall Survival (OS) in Participants With Positive Programmed Cell Death-Ligand 1 (PD-L1) Expression (≥1%Tumor Cells) and in all Randomized Participants.Up to 68 monthsOS is defined as the time from the date of randomization to the date of death from any cause.

Secondary

MeasureTime frameDescription
Progression-free Survival (PFS) as Assessed by Blinded Independent Central Review (BICR) per Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1Upt to 50 monthsPFS is defined as the time from the date of randomization until disease progression (PD) or death from any cause, whichever comes first.
Objective Response Rate (ORR) as Assessed by BICR per RECIST Version 1.1Up to 50 MonthsORR is defined as the proportion of participants who have achieved a complete response (CR) or partial response (PR) that is confirmed at least 4 weeks later.
Duration of Response (DOR) as Assessed by BICR per RECIST Version 1.1Up to 50 MonthsDOR is defined as the time from the first response (CR or PR), to the first documented PD or death from any cause, whichever comes first.
Percentage of Participants Experiencing Treatment-emergent Adverse Events (TEAEs)First dose date up to 50 months plus 30 days
Percentage of Participants Experiencing Clinical Laboratory AbnormalitiesFirst dose date up to 50 months plus 30 days
Time to First Symptom Deterioration in Non-small Cell Lung Cancer Symptom Assessment Questionnaire (NSCLC-SAQ) Total ScoreBaseline, Up to 50 MonthsThe NSCLC-SAQ is a patient reported outcome measure with seven items assessing five symptom concepts of NSCLC: cough, pain, dyspnea, fatigue, and appetite. Each item is rated using a five-point verbal rating scale from "No \<symptom\> At All" to "Very severe \<symptom\>" or from "Never to Always," corresponding to a score of 0 to 4. The sum of all 5 domain scores will be computed, if any scores are missing, a total score will not be computed. The total score ranges between 0 and 20 with higher scores indicating more severe symptoms.

Countries

Argentina, Austria, Belgium, Brazil, Canada, Chile, China, France, Germany, Hong Kong, Israel, Italy, Japan, Mexico, Netherlands, Portugal, Singapore, South Korea, Spain, Taiwan, Turkey (Türkiye), United Kingdom, United States

Contacts

STUDY_DIRECTORGilead Study Director

Gilead Sciences

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026