New cocktail of drugs aims to fight advanced stomach cancer
NCT ID NCT07315750
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This phase 3 trial is testing whether a combination of three drugs (disitamab vedotin, trastuzumab, and tislelizumab) works better than standard chemotherapy plus trastuzumab with or without pembrolizumab for people with advanced HER2-high stomach or gastroesophageal junction cancer. The study will enroll 555 participants who have not had prior treatment for advanced disease. The main goal is to see if the new combo delays cancer progression or improves survival.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Disitamab vedotin, trastuzumab, tislelizumab, CAPOX chemotherapy, pembrolizumab
- What this could lead to
- If this works, it could offer a more effective first-line treatment option for people with advanced HER2-high stomach cancer, potentially extending life without progression.
- What could go wrong
- This is an early-stage phase 3 trial with 555 participants, so results are not yet known. The new combination may not be better than standard therapy and could have more side effects.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 555 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jan 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2030
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 75 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Voluntarily consent to participate in the study and sign the informed consent form * Expected survival period \>12 weeks * ECOG Performance Status 0 or 1 * Histologically confirmed unresectable locally advanced or metastatic --gastric/gastroesophageal junction adenocarcinoma * No prior systemic therapy for locally advanced or metastatic gastric cancer; or disease progression or recurrence occurring ≥6 months after completion of neoadjuvant/adjuvant therapy * HER2-high expression * At least one assessable lesion according to RECIST v1.1 criteria * Adequate organ function * Female subjects of childbearing potential must have a negative blood pregnancy test within 7 days prior to the first treatment, and agree not to breastfeed or donate ova from the signing of the informed consent form until 6 months after the last treatment. Male subjects must agree not to donate sperm from the signing of the informed consent form until 6 months after the last treatment. * Able to understand the study requirements and willing to comply with the study and follow-up procedures Exclusion Criteria: * Presence of central nervous system (CNS) metastasis and/or carcinomatous meningitis * Peripheral neuropathy \> Grade 1 * Tumor lesions with a tendency to bleed * Severe gastrointestinal dysfunction that may affect drug intake, transport, or absorption * Bone metastases with a risk of paraplegia * Past or current interstitial lung disease, or severely impaired lung function * Other malignancies within 5 years prior to randomization, except for those expected to be cured with treatment * Pregnant or breastfeeding women
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Beijing Cancer Hospital
RECRUITINGBeijing, BJ-Beijing, 100021, China
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