Gastric/Gastroesophageal Junction Adenocarcinoma

The purpose of this study is to assess the safety, tolerability, and recommended dose(s) of BMS-986340 as monotherapy and in combination with nivolumab, docetaxel, or Pumitamig in participants with advanced solid tumors. This study is a first-in-human (FIH) study of BMS-986340 in participants with advanced solid tumors.

A Phase II study to evaluate the safety, tolerability, pharmacokinetics, and efficacy of IBI343 in combination therapy for patients with advanced malignant solid tumors.To evaluate the efficacy and safety of IBI343 in combination therapy for patients with advanced malignant solid tumors.Enrollment of subjects with advanced gastric/gastroesophageal junction adenocarcinoma positive for CLDN18.2, and subjects with pancreatic ductal adenocarcinoma positive for CLDN18.2.

HER2 overexpression is observed in approximately 20% of gastric cancers and gastroesophageal junction (GEJ) cancers, making it a validated target for anti-tumor therapy . In advanced-stage systemic therapy, trastuzumab combined with chemotherapy has demonstrated clinical benefits for HER2-positive gastric and GEJ cancers . However, the combination of trastuzumab and pertuzumab plus chemotherapy did not significantly improve overall survival (OS) compared to trastuzumab monotherapy in HER2-expressed gastric/GEJ cancers . In neoadjuvant therapy for early-stage or locally advanced gastric cancer, there is currently no standardized perioperative regimen for HER2-positive gastric or GEJ cancers, and effective treatment remains challenging . Zanidatamab, a humanized bispecific IgG1-like antibody targeting HER2's ECD4 and ECD2 epitopes, exhibits unique enhanced functionality . Phase II studies (NCT03929666) showed that zanidatamab combined with chemotherapy as first-line therapy for HER2-positive advanced gastroesophageal adenocarcinoma (GEA) demonstrated superior survival benefits and durable responses compared to standard therapy (trastuzumab plus chemotherapy) . A Phase III study (HERIZON-GEA-01, NCT05152147) is now underway to further validate its efficacy when combined with chemotherapy ± tislelizumab versus trastuzumab-based chemotherapy . For previously untreated stage II/III locally advanced gastroesophageal junction adenocarcinoma (cT1-2N+M0, cT3-4aNanyM0) with confirmed HER2 high expression (HER2 3+/2+ FISH+), neoadjuvant zanidatamab combined with chemotherapy (FLOT/SOX/CAPOX) is being explored to evaluate safety and efficacy, potentially offering a new treatment option for HER2-positive GEJ cancers in perioperative settings .

This study is a multicenter, open-label, phase II clinical trial evaluating the combination of SSGJ-706 with standard therapy for advanced gastrointestinal tumors. Its objective is to assess the safety, tolerability, and antitumor activity of SSGJ-706 in combination with standard treatment.

A single-arm, Phase II clinical study protocol of Apatolimab Tovolimab in combination with regorafenib and chemotherapy as first-line treatment for locally advanced or metastatic gastric/gastroesophageal junction adenocarcinoma

Given that a significant proportion of locally advanced gastric cancer patients still die from tumor recurrence after surgery, with long-term therapeutic outcomes stagnating and difficult to further improve, especially for patients with poor tumor regression grade (TRG) after surgery, this study aims to explore a new model of adjuvant therapy by conducting research on the use of Fruquintinib in combination with standard chemotherapy for postoperative treatment of HER2-negative gastric cancer patients with poor TRG, in order to bring greater survival benefits to patients.

This study is to evaluate the efficacy of neoadjuvant long-term treatment with tislelizumab in combination with SOX in the treatment of locally advanced gastric/gastroesophageal junction adenocarcinoma.

To evaluate the initial efficacy and safety of paclitaxel for injection (albumin-bound) in combination with apatinib mesylate and adebrelimab in the treatment of locally advanced or metastatic gastric/gastroesophageal junction adenocarcinoma following the progression of previous immunotherapy.