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Brief Title: Tumor Microenvironment in Gastric Cancer Patients Treated With Combined Immunotherapy and Chemotherapy
Official Title: Using Single-cell Sequencing to Explore Tumor Microenvironment in Gastric Cancer Patients Treated With Combined Immunotherapy and Chemotherapy
Study ID: NCT06202781
Brief Summary: The goal of this study is to analyze the tumor microenvironment (TME) in gastric cancer patients treated with combined immunotherapy and chemotherapy. The main questions it aims to answer are: * Provide profiles of TME between pre-treatment and post-treatment to gain insights into the mechanisms of immunotherapy combined with chemotherapy in advanced gastric cancer * Investigate the crucial factors affecting treatment efficacy by comparing gastric cancer patients with varying treatment responses
Detailed Description:
Minimum Age: 18 Years
Eligible Ages: ADULT, OLDER_ADULT
Sex: ALL
Healthy Volunteers: No
Chinese PLA General Hospital, Beijing, Beijing, China