Treatment for advanced esophageal cancer using camrelizumab and S-1

A Single-arm, Phase II Study of Camrelizumab Combined With S-1 Maintenance After First-Line Induction Chemotherapy in Patients With HER2 Negative Advanced Gastric Cancer

Phase 2 Interventional Peking Union Medical College Hospital · NCT05170542

This study tests if combining camrelizumab with S-1 can help people with advanced gastric cancer feel better after their initial chemotherapy.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment42 (estimated)
Ages18 Years to 75 Years
SexAll
SponsorPeking Union Medical College Hospital Academic / other
Drugs / interventionscamrelizumab, chemotherapy, immunotherapy
Locations1 site (Beijing, Beijing)
Trial IDNCT05170542 on ClinicalTrials.gov

What this trial studies

This study investigates the efficacy and safety of combining camrelizumab with S-1 maintenance therapy following first-line induction chemotherapy for patients with locally advanced or metastatic gastric cancer. Participants who do not show disease progression after 4-6 weeks of initial chemotherapy will receive the combination treatment. The study aims to evaluate how well this approach works in improving patient outcomes.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 75 with unresectable locally advanced or metastatic adenocarcinoma of the stomach or gastro-esophageal junction.

Not a fit: Patients currently receiving other anticancer treatments or those with HER2+ tumors may not benefit from this study.

Why it matters

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

How similar studies have performed: Other studies have shown promise with similar immunotherapy approaches, suggesting potential for success in this trial.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Male or female subjects aged from 18 to 75 years old;
2. Subjects with histologically confirmed unresectable locally advanced or metastatic adenocarcinoma of the stomach or gastro-esophageal junction (GEJ);
3. Eastern Cooperative Oncology Group Performance Status (ECOG PS) of 0 to 1 at trial entry;
4. Disease must be measurable by Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1);
5. Estimated life expectancy of more than 3 months;
6. Adequate haematological, hepatic and renal functions defined by the protocol;
7. Negative blood pregnancy test at Screening for women of childbearing potential; Highly effective contraception for both male and female subjects if the risk of conception exists;

Exclusion Criteria:

1. Concurrent anticancer treatment such as chemotherapy, radiotherapy, targeted or immunotherapy;
2. Tumor shown to be human epidermal growth factor 2 plus (HER2+);
3. Previous malignant disease (other than gastric cancer) within the last 5 years with the exception of basal or squamous cell carcinoma of the skin or carcinoma in situ (bladder, cervical, colorectal, breast);
4. Severe infection (e.g. need for intravenous antibiotics, antifungal or antiviral drugs) occurred within 4 weeks before the first administration, or fever (\>38.5%) of unknown reason occurred during the screening period/before the first administration;
5. Any active autoimmune disease or history of autoimmune disease (such as interstitial pneumonia, uveitis, enteritis, hepatitis, hypophysitis, vasculitis, myocarditis, nephritis, hyperthyroidism, hypothyroidism (can be included after hormone replacement therapy)); The subjects with childhood asthma who had been completely relieved and did not need any intervention or vitiligo in adulthood could be included, but the subjects who needed bronchodilator for medical intervention could not be included;
6. Patients with congenital or acquired immune deficiency, such as human immunodeficiency virus (HIV) infection, active hepatitis B (HBV DNA ≥ 500 IU / ml), hepatitis C (HCV antibody positive and HCV-RNA higher than the detection limit of the analytical method), or co infection of hepatitis B and hepatitis C;
7. Used immunosuppressive drugs within 14 days before the first dose of study drug, excluding nasal and inhaled corticosteroids or physiological doses of systemic corticosteroids;
8. Accination with live or live/attenuated viruses within 28 days of the first dose of camrelizumab and while on trial is prohibited except for administration of inactivated vaccines;
9. History of uncontrolled intercurrent illness including hypertension, active infection, diabetes or cardiac diseases or symptoms;
10. Prior organ transplantation, including allogeneic stem-cell transplantation; Other protocol-defined inclusion/exclusion criteria could apply.

Where this trial is running

Beijing, Beijing

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.
Conditions Efficacy and Safty of Camrelizumab Plus S-1 Maintenance After First-line Induction Chemotherapy for GC
Last reviewed 2026-06-13 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.