Comparing SHR-A1904 to standard treatments for advanced gastric cancer

An Open, Randomized,Positive Control, Multicenter Phase III Clinical Study of SHR A1904 for Injection Compared With Investigator's Choice of Therapy in Claudin18.2 Positive Patients With Second-line Advanced or Metastatic Gastric or Gastroesophageal Junction Adenocarcinoma

PHASE3 · Shanghai Hengrui Pharmaceutical Co., Ltd. · NCT06649292

This study is testing a new treatment called SHR-A1904 to see if it helps people with advanced stomach cancer live longer compared to standard therapies they might usually receive.

Quick facts

PhasePHASE3
Study typeInterventional
Enrollment524 (estimated)
Ages18 Years to 75 Years
SexAll
SponsorShanghai Hengrui Pharmaceutical Co., Ltd. (industry)
Drugs / interventionschemotherapy, immunotherapy
Locations1 site (Guangzhou, Guangdong)
Trial IDNCT06649292 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the effectiveness of SHR-A1904 compared to investigator's choice of therapy in patients with second-line advanced or metastatic gastric or gastroesophageal junction adenocarcinoma that express CLDN18.2. The study aims to determine overall survival rates among participants receiving SHR-A1904 versus those receiving standard treatments like Paclitaxel, Docetaxel, or Irinotecan. Eligible patients are those aged 18 to 75 with measurable disease and adequate organ function, who have not received certain prior therapies recently.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 75 with CLDN18.2-positive advanced gastric or gastroesophageal junction adenocarcinoma.

Not a fit: Patients with HER2-positive tumors or those who have received recent anti-tumor therapies may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option that improves survival for patients with advanced gastric cancer.

How similar studies have performed: Other studies have shown promising results with targeted therapies in similar patient populations, suggesting potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age 18 to 75 years old (including boundary values)
2. Volunteer to participate in this clinical study and sign informed consent;
3. ECOG score 0-1;
4. Expected survival ≥3 months;
5. Gastric or Gastroesophageal Junction Adenocarcinoma;
6. positive CLDN18.2 expression in tumor tissue;
7. There is at least one measurable or evaluable lesion that meets the RECIST 1.1 criteria;
8. Adequate bone marrow and organ function.

Exclusion Criteria:

1. Received anti-tumor therapies such as chemotherapy, radiotherapy, biological therapy, targeted therapy, or immunotherapy within 4 weeks before the first dose of the study
2. HER2 posotive (IHC 3+ or IHC 2+/ISH +);
3. Toxicities caused by previous anticancer therapy were not recovered to CTCAE 5.0 Grade≤1;
4. Individuals with Leptomeningeal metastasis or Active brain metastases;
5. Individuals with a history of GI perforation or fistula, unstable GI bleeding;
6. Individuals with a history of severe cardiovascular and cerebrovascular diseases;
7. The researcher determined that there are other situations that are not suitable for participation.

Where this trial is running

Guangzhou, Guangdong

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Second-line Advanced or Metastatic Gastric or Gastroesophageal Junction Adenocarcinoma

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.