Phase
Condition
Gastric Cancer
Stomach Cancer
Digestive System Neoplasms
Treatment
Ramucirumab
SOX/XELOX
Sintilimab
Clinical Study ID
Ages > 18 All Genders
Study Summary
Eligibility Criteria
Inclusion
Inclusion Criteria:
Voluntary participation in the clinical study; full understanding and informedconsent to this study by signing the Informed Consent Form (ICF); willingness tofollow and ability to complete all trial procedures.
Patients with histologically or cytologically confirmed, unresectable, or who refusesurgical resection of locally advanced, recurrent, or metastatic gastric andgastroesophageal junction (GEJ) adenocarcinoma (including signet-ring cellcarcinoma, mucinous adenocarcinoma, hepatoid adenocarcinoma, etc.). (Note: Forpatients who relapse after neoadjuvant/adjuvant therapy, the time from the end ofneoadjuvant/adjuvant therapy to disease relapse must be more than 6 months.)
Patients, except those with recurrent disease after neoadjuvant/adjuvant therapy,must not have previously received systemic treatment.
Participants must be histologically confirmed as having HER2-negative gastriccancer, GEJ cancer, or esophageal adenocarcinoma.
There must be at least one measurable lesion in the liver assessed by computedtomography (CT) scan or magnetic resonance imaging (MRI) according to the ResponseEvaluation Criteria in Solid Tumors (RECIST 1.1) that can undergo repeatradiological evaluation; the radiological tumor assessment should be performedwithin 28 days prior to randomization.
The Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) score of 0-2within 7 days prior to the first dose of medication.
Availability of representative tumor tissue specimens, blood samples, and fecalsamples for exploratory research.
Main organ functions must be normal, meeting the following criteria:
Liver Function Alanine Aminotransferase (ALT) ≤5.0 × ULN Aspartate Aminotransferase (AST) ≤5.0 × ULN
Exclusion
Exclusion Criteria:
History of other active malignancies within the past 5 years or currently havingother active malignancies. Treated localized tumors, such as basal cell carcinoma ofthe skin, squamous cell carcinoma of the skin, superficial bladder cancer, prostatecarcinoma in situ, cervical carcinoma in situ, and breast carcinoma in situ, areeligible for inclusion.
Underwent surgery within 4 weeks prior to the start of the study treatment.
Known history of severe allergy to any monoclonal antibodies or excipients.
Previous use of PD-1 inhibitors, LAG-3 inhibitors, CTLA-4 inhibitors, or any otherantibodies or drug treatments targeting T-cell co-stimulation or immune checkpointpathways, including previous receipt of anti-tumor vaccines or otherimmunostimulatory anti-tumor therapies.
Previous exposure to VEGF (vascular endothelial growth factor) or VEGFR inhibitorsor any anti-angiogenesis medications.