Clinical Study of Taurine Combined With Sintilimab and Chemotherapy for Treatment of Advanced Gastric Cancer

A Prospective, Randomized Controlled Clinical Study of The Efficacy and Safety of Taurine Combined With Sintilimab and Chemotherapy Versus Sintilimab Combined With Chemotherapy for Treatment of Advanced Gastric Cancer

This project aims to evaluate the efficacy and safety of oral taurine supplementation combined with PD-1 inhibitor (sintilimab) and chemotherapy in inducing systemic CD8+ T cell responses and achieving improved gastric cancer patient outcomes than with sintilimab and chemotherapy alone.

Inclusion Criteria:

1. Age 18 or older, no gender limitation;
2. Pathologically confirmed gastric cancer or adenocarcinoma of the gastroesophageal junction, local lesions cannot be radically resected or metastatic gastric cancer;
3. Expected survival of ≥ 3 months;
4. Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1;
5. At least one measurable lesion outside the stomach (RECIST 1.1);
6. Patients informed about the purpose and course of the study and provided a written consent to participate.

Exclusion Criteria:

1. Use of taurine agent within 1 month prior to randomization on this study;
2. Patients received prior systemic therapy for gastric cancer;
3. Patients with operable gastric cancer;
4. Patients with positive HER-2 and willing to receive herceptin treatment;
5. Patients with gastrointestinal obstruction or active bleeding in the gastrointestinal tract, as well as perforation and dysphagia;
6. Patients with active autoimmune disease that has required systemic treatment in past 2 years;
7. Patients diagnosed as immunodeficiency or receiving systemic steroid therapy or any other form of immunosuppressive therapy;
8. Patients with severe heart, lung, liver, kidney, endocrine, hematopoietic system or psychiatric diseases were considered not suitable for the study group;
9. Patients with other medical conditions that interfere with the trial and are deemed unsuitable for inclusion in the trial by the investigator;
10. Other conditions that the investigator thinks are not suitable to participate in this clinical trial.