A Real-world Study of Camrelizumab Alone or in Combination With Apatinib/Chemotherapy for Advanced Gastric Cancer

Inclusion Criteria:

1. Age ≥18 years old, both male and female;
2. patients with advanced gastric cancer diagnosed by pathology or histology and progressed or recurred after 6 months of adjuvant therapy can also be considered for enrollment;
3. Have at least one measurable lesion on imaging (RECIST 1.1 criteria), the spiral CT or MR target lesion should be ≥10 mm and lymph node ≥15 mm;
4. The investigator determines that the patient is amenable to treatment with karelizumab or apatinib;
5. Voluntary enrollment; good compliance and willingness to cooperate with follow-up.

Exclusion Criteria:

1. Pregnant or lactating women;
2. Previous use of other immunotherapy drugs (e.g. PD-1 monoclonal antibody, PD-L1 monoclonal antibody, CTLA4 monoclonal antibody, etc.);
3. Prior use of other anti-angiogenic therapeutic agents (e.g., apatinib, etc.);
4. Patients who, in the judgment of the investigator, are not suitable for inclusion.