|
18 years to 80 years |
|
|
|
|
Eastern Cooperative Oncology Group (ECOG) performance status of 0-1 |
|
|
|
|
Primary gastric cancer or gastroesophageal junction cancer that is pathologically diagnosed as adenocarcinoma |
|
|
|
|
Patients who have underwent radical resection with D2 lymphadenectomy and histologically proven to be stage IIIC gastric cancer according to the 8th edition of the UICC/AJCC TNM staging system for gastric cancer[29] |
|
|
|
|
Patients who have received no prior chemotherapy or radiotherapy or immunotherapy for gastric cancer or gastroesophageal junction cancer |
|
|
|
|
No peritoneal metastasis by laparoscopy and no tumor cells in peritoneal fluid on cytologic analysis |
|
|
|
|
Adequate organ function for chemotherapy as follows |
|
|
|
|
absolute neutrophil count of 1.5109/L |
|
|
|
|
platelet count of 100109/L |
|
|
|
|
hemoglobin 90g/L |
|
|
|
|
bilirubin of <1.5upper limit of normal [ULN] |
|
|
|
|
alanine aminotransferase and aspartate aminotransferase of <2.5ULN |
|
|
|
|
serum creatinine of 1.5ULN |
|
|
|
|
creatinine clearance of >50 mL/min |
|
|
|
|
TSH 1ULN (if abnormal, T3 and T4 levels should be inspected at the same time, if T3 and T4 levels are normal, they can be included in the group) |
|
|
|
|
APTT 1.5ULN and INR 1.5ULN |
|
|
|
|
myocardial enzymogram 1ULN |
|
|
|
|
Written (signed) informed consent |
|
|
|
|
Good compliance with the study procedures, including examination and treatment |
|
|
|
|
Surgeons should have experience doing this type of surgery (>50 procedures per year) |
|
|
|
|
Patients have recovered from the operation and have no unresolved postoperative complications (such as postoperative infection, anastomotic leakage, gastrointestinal bleeding, pancreatic leakage) during baseline evaluation |
|
|
|
|
Start first treatment between 4 weeks and 12 weeks after surgery and there is no potential disease recurrence at the baseline evaluation |
|
|
|
|
The serum or urine HCG test of the female patients of non-surgical sterilization must be negative within 72 hours before the study group for the female patients of non-surgical sterilization or childbearing age |
|
|
|
|
During the study treatment period and within 3 months after the end of the study treatment period, a medically recognized contraceptive measure (such as IUD, contraceptive pill or condom) should be used for the enrolled patients |
|
|
|
|
Distant metastatic disease evaluated by Chest-abdomen-pelvis CT, bone scan and head MR when with central nervous system symptoms or PET-CT
|
|
|
|
|
R1 or R2 surgical margins
|
|
|
|
|
Hospital stays exceeding 60 days
|
|
|
|
|
Patients with history of prior or concurrent malignant tumors. However, subjects who have been disease-free for 5 years, or subjects with a history of completely resected non-melanoma skin cancer or successfully treated in situ carcinoma, are eligible
|
|
|
|
|
Patients who received study drug treatment within 4 weeks before enrollment (participate in other clinical trials)
|
|
|
|
|
Patients with serious complications such as
|
|
|
|
|
Uncontrolled cardiovascular disease, angina and arrhythmia
|
|
|
|
|
Myocardial infarction in past six months
|
|
|
|
|
Uncontrolled diabetes mellitus
|
|
|
|
|
History of receiving anti-PD-1, anti-PD-L1, anti-PD-L2 or any other T cell co-simulation or checkpoint inhibitor therapy (eg. CTLA-4, OX-40, CD137)
|
|
|
|
|
Received any anti-cancer for this disease, including chemotherapy or radiotherapy or immunotherapy or Chinese traditional herb therapy
|
|
|
|
|
Refuse to provide blood/tissue sample
|
|
|
|
|
Female patients who are pregnant or lactating, or planning to become pregnant or lactating
|
|
|
|
|
Active autoimmune disease or history of refractory autoimmune disease; Subjects with hypothyroidism requiring only hormone replacement therapy and skin diseases without systemic treatment (such as vitiligo, psoriasis or alopecia) can be selected
|
|
|
|
|
Steroid or other systemic immunosuppressive therapy was used 14 days before admission, excluding local or physiological doses of systemic glucocorticoids (eg. no more than 10mg/day of prednisone or other glucocorticoids of equivalent dose) by nasal spray, inhalation or other routes, or hormones used to prevent allergy of contrast agents
|
|
|
|
|
Uncontrollable pleural effusion, pericardial effusion or ascites
|
|
|
|
|
History of allogeneic organ transplantation and allogeneic hematopoietic stem cell transplantation
|
|
|
|
|
Patients with history of hypersensitivity to any drugs in this study
|
|
|
|
|
It may affect the absorption of S-1 in patients with upper gastrointestinal obstruction /bleeding, abnormal digestive function or malabsorption syndrome
|
|
|
|
|
Have not fully recovered from toxicity or complications caused by any intervention before starting treatment
|
|
|
|
|
HIV antibody positive, active hepatitis B or C (hepatitis B: HBsAg positive and HBV DNA 10 copies/ml; hepatitis C: HCV antibody and HCV-RNA positive, requiring antiviral treatment at the same time)
|
|
|
|
|
Receive live attenuated vaccine within 4 weeks before the first dose of study treatment or during the study period
|
|
|
|
|
Severe or uncontrolled systemic disease
|
|
|
|
|
severe cardiovascular diseases such as symptomatic coronary heart disease, congestive heart failure level II, uncontrolled arrhythmia and myocardial infarction within 12 months before admission
|
|
|
|
|
active infection which requires systemic treatment
|
|
|
|
|
active tuberculosis
|
|
|
|
|
central nervous system (CNS) disorder or peripheral nervous system disorder or psychiatric disease
|
|
|
|
|
history of primary immunodeficiency
|
|
|
|
|
complicated with severe uncontrolled concurrent infection or other serious uncontrolled concomitant diseases, moderate or severe renal injury
|
|
|
|
|
Other factors that may affect the safety or test compliance of the subjects according to the judgment of the researchers
|
|
|
|