New combo therapy aims to keep stomach cancer from coming back after surgery
NCT ID NCT06761846
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether adding the immunotherapy drug sintilimab to standard chemotherapy after surgery can help prevent stage III stomach or gastroesophageal junction cancer from returning. About 70 adults who have had their tumor removed will receive the combination treatment for up to 16 cycles. Researchers will track how long participants remain cancer-free and monitor 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 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 70 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2025
- Expected to finish
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Dec 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
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 years and older
- 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Age ≥18. 2. Patients with histopathological confirmed gastric/GEJ adenocarcinoma. 3. The pTNM is confirmed between IIIA-IIIC and the PD-L1 CPS\>=1. 4. Patients treated with D2 surgery. 5. ECOG is 0 or 1. 6. Patients who could tolerate chemotherapy combined with immunotherapy. 7. Patients who are not pregnant and have no willing to get pregnant within 6 months after the treatment is over. 8. Patients who are willing to offer their postoperative tumor tissue and their peripheral blood samples. 9. Patients who are volunteer to sign the ICF. Exclusion Criteria: 1. Patients who had received neoadjuvent treatments before surgery. 2. Patients who have discovered tumor relapse or metastasis before adjuvent treatment. 3. Patients who have other malignant tumors. 4. Patients who could not swallow the tablets and capsules. 5. Other conditions which the researchers think are not suitable for participate the study.
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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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Cancer Hodpital, Chinese Academy of Medical Sciences and Peking Union Medical College
RECRUITINGBeijing, Beijing Municipality, 100021, China
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- One small incision vs several: robotic stomach cancer surgery put to the test
- Can PET scans reveal which stomach cancers will respond to immunotherapy?
- Can a direct hit to tumors make immunotherapy work better?
- Can a vaccine stop GI cancers from returning?
- Blood test aims to catch Cancer's return earlier
- Blood test guides immunotherapy for hidden cancer cells