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A Phase II, Single-Arm, Exploratory Study Protocol of Palliative Radiotherapy Combined with Immune Checkpoint Inhibitors in Previously Treated Patients with Advanced Gastric Cancer

A Phase II, Single-Arm, Exploratory Study Protocol of Palliative Radiotherapy Combined with Immune Checkpoint Inhibitors in Previously Treated Patients with Advanced Gastric Cancer

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500102619
Enrollment
Unknown
Registered
2025-05-16
Start date
2025-05-26
Completion date
Unknown
Last updated
2025-05-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

gastric cancer

Interventions

Immunotherapy combined with radiotherapy:1.Immune checkpoint inhibitor therapy, administered every 3 weeks, with dosing based on the recommended dosage in the instructions for use. The medications use

Sponsors

Jinan central hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1.Histologically or cytologically confirmed Stage IV or recurrent gastric cancer or gastroesophageal junction adenocarcinoma, with failure of at least one line of platinum-containing chemotherapy. 2. Planned to receive palliative radiotherapy to the metastatic or primary site, with a required total radiation dose of EQD2 >= 30 Gy. 3. Known results of Her2 and programmed death ligand 1 (PD-L1) expression levels. 4. Age between 18 and 80 years. 5. Estimated survival of >= 3 months, and an ECOG performance status score of 0 or 1. 6. Presence of measurable disease as defined by the investigator according to RECIST v1.1. 7. Organ function levels must meet the following requirements without transfusion, use of any hematopoietic growth factors, and/or platelet-increasing medications within 14 days prior to screening, and must meet the following criteria: (1) Hematologic function: Absolute neutrophil count (ANC) >= 1.5 × 10^9/L, platelet count >= 100 × 10^9/L, hemoglobin>= 90 g/L; (2)Liver function: Total bilirubin (TBIL) = 50 mL/min (according to the Cockcroft and Gault formula); (4) Coagulation function: International normalized ratio (INR)<=1.5, and activated partial thromboplastin time (APTT) <= 1.5 × ULN. 8. Signed informed consent form.

Exclusion criteria

Exclusion criteria: 1. Previous exposure to immunotherapy with Grade 3 or higher immune-related adverse events (irAEs), and deemed by the physician as unsuitable for further immunotherapy, or presence of contraindications to immunotherapy. 2. Participants with known active central nervous system metastases and/or carcinomatous meningitis. 3. Received radiotherapy or systemic anti-tumor treatment within 14 days prior to the first dose of study treatment. 4. Presence of active infections, as well as ulcerated or unhealed wounds. 5. Patients with large amounts of pleural or peritoneal effusion, or symptomatic pleural or peritoneal effusion, or poorly controlled pleural or peritoneal effusion. 6. Positive for human immunodeficiency virus antibody (HIVAb), active hepatitis B virus infection (HBsAg positive with HBV-DNA > 10^3 copies/ml), or hepatitis C virus infection. 7. Uncontrolled severe cardiovascular and cerebrovascular diseases.

Design outcomes

Primary

MeasureTime frame
Overall Survival;

Secondary

MeasureTime frame
Progression-Free Survival;Objective Response Rate;

Countries

China

Contacts

Public ContactMeili Sun

Jinan central hospital

smli1980@163.com+86 189 5311 6532

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026