CapeOX (capecitabine and oxaliplatin) combined with sintilimab and bevacizumab biosimilar (IBI305) for first-line treatment of advanced gastric or oesophagogastric junction adenocarcinoma: study protocol for a single-arm, phase Ib/II trial.

ABSTRACT:

Background

A combination of chemotherapy and immune checkpoint inhibitor therapy has been demonstrated to be effective as a first-line treatment of gastric or gastro-oesophageal junction (G/GEJ) cancer. The conventional treatment strategy for patients with advanced/metastatic human epidermal growth factor receptor 2-negative G/GEJ cancer is recommended. However, the response rate and enhancements in survival are still significantly insufficient. The present study will investigate the efficacy and safety of incorporating a bevacizumab biosimilar IBI305 into chemotherapy and immunotherapy as a first-line treatment for advanced or metastatic G/GEJ cancer.

Methods and analysis

This single-arm, open-label, prospective phase Ib/II clinical study will involve 57 participants. In ph

SUBMITTER: Dai R 

PROVIDER: S-EPMC12815163 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature