NCT07221149 · Bristol-Myers Squibb
A Study to Evaluate the Safety and Efficacy of Pumitamig in Combination With Chemotherapy Versus Nivolumab in Combination With Chemotherapy in Participants With Previously Untreated Advanced or Metastatic Gastric, Gastroesophageal Junction, or Esophageal Adenocarcinoma (ROSETTA Gastric-204)
What this study is about
The purpose of this study is to evaluate the safety and effectiveness of Pumitamig in combination with chemotherapy versus Nivolumab in combination with chemotherapy in participants with previously untreated advanced or metastatic gastric, gastroesophageal junction, or esophageal adenocarcinoma
View original scientific description
The purpose of this study is to evaluate the safety and efficacy of Pumitamig in combination with chemotherapy versus Nivolumab in combination with chemotherapy in participants with previously untreated advanced or metastatic gastric, gastroesophageal junction, or esophageal adenocarcinoma
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Participants must be previously untreated with systemic treatment for advanced/metastatic disease, histologically or cytologically confirmed advanced or metastatic gastric cancer (GC), gastroesophageal junction adenocarcinoma (GEJC) or distal esophageal adenocarcinoma (EAC). GEJ involvement can be confirmed via biopsy, endoscopy, or imaging.
- Participants must have a documented programmed cell death-(ligand)1 (PD-L1) ≥ 1 or \< 1 status for Phase 2, and document PD-L1 ≥ 1 status for the Phase 3 part of the study.
- Participants must have documented human epidermal growth factor receptor 2 (HER2)-negative cancer, as determined according to local guidelines.
- Participants must have measurable disease as defined by RECIST v1.1.
Exclusion criteria
- Participants must not have untreated known central nervous system (CNS) metastases.
- Participants must not have significant cardiovascular disease, such as myocardial infarction, unstable angina, arterial thrombosis, cerebrovascular accident within 6 months prior to randomization, uncontrolled hypertension (≥ 160 systolic, ≥ 100 diastolic mm Hg) despite optimal medical management, or congenital long QT syndrome.
- Participants must not have evidence of major coagulation disorders (eg, hemophilia).
- Participants must not have a history of deep vein thrombosis, pulmonary embolism, or any other significant thromboembolism within 3 months prior to randomization, unless the participant has been fully treated (eg, inferior vena cava filter placed) and/or adequately anticoagulated on a stable dose.
- Participants must not have a history of abdominal fistula or gastrointestinal (GI) perforation within 6 months of randomization.
- Participants must not have had major surgery, open biopsy, or significant traumatic injury within 28 days prior to randomization, or anticipation of the need for major surgery during the course of study intervention.
- Other protocol-defined Inclusion/Exclusion criteria apply.
Where
- Phoenix, Arizona
- Los Angeles, California
- Orange, California
- San Francisco, California
- Fort Myers, Florida
- Jacksonville, Florida
- St. Petersburg, Florida
- Tampa, Florida
- Atlanta, Georgia
- Chicago, Illinois
- Iowa City, Iowa
- Rochester, Minnesota
And 21 more locations — see the full list below.
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jun 26, 2026 · Source of record for eligibility and locations