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Not yet recruiting NCT07643623

Neoadjuvant and Adjuvant Therapy Studies of Sintilimab Combined With Chemotherapy With or Without Ipilimumab N01 in Resectable Gastric/Gastroesophageal Junction Adenocarcinoma

Phase II / Phase III Interventional Resectable Gastric/Gastroesophageal Junction Adenocarcinoma

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: tegafur, Gimeracil and Oteracil Potassium Capsules, Sintilimab Placebo, Sintilimab, Ipilimumab N01.
Who it may be relevant to
Registry conditions: Resectable Gastric/Gastroesophageal Junction Adenocarcinoma. Basic parameters: from 18 years · All.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
China
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Official title

A Randomized, Double-Blind, Phase II/III Clinical Study of the Efficacy and Safety of Sintilimab Combined With Chemotherapy With or Without Ipilimumab N01 in Perioperative Treatment of Resectable Gastric/Gastroesophageal Junction Adenocarcinoma

Overview

This is a Randomized, Double-Blind, Phase II/III Clinical Study of the Efficacy and Safety of Sintilimab Combined with Chemotherapy With or Without Ipilimumab N01 in Perioperative Treatment of Resectable Gastric/Gastroesophageal Junction Adenocarcinoma.

Interventions

  • Drug tegafur, Gimeracil and Oteracil Potassium Capsules
    40mg/m2, D1-14 BID PO Q3W
  • Drug Sintilimab Placebo
    200 mg, D1 IV Q3W
  • Drug Sintilimab
    200mg D1 IV Q3W
  • Drug Ipilimumab N01
    1mg/kg, D1 IV Q6W
  • Drug Oxaliplatin for injection
    130 mg/m2 D1 IV Q3W
  • Drug Ipilimumab N01 Placebo
    1mg/kg, D1 IV Q6W

Primary outcome measures

  • Major Pathological Response (MPR) rate in Resectable Gastric/Gastroesophageal Junction Adenocarcinoma [Time frame: Up to approximately 6 weeks following the beginning of Post-operative Assessment baseline(up to Study 2 years )]
  • Event-Free Survival (EFS) [Time frame: Up to approximately 5 years]
Secondary outcome measures (6)
  • pathological Complete Response (pCR) rate [Time frame: Up to approximately 6 weeks following the beginning of Post-operative Assessment baseline(up to Study 2 years )]
  • Clinical Down-staging Rate [Time frame: Up to approximately 6 weeks following the beginning of Post-operative Assessment baseline(up to Study 2 years )]
  • R0 resection rate [Time frame: Up to approximately 6 weeks following the beginning of Post-operative Assessment baseline(up to Study 2 years )]
  • Overall survival (OS) [Time frame: Up to approximately 5 years]
  • numbers of subjects with adverse events [Time frame: Up to approximately 5 years]
  • numbers of subjects with serious adverse events [Time frame: Up to approximately 5 years]

Eligibility criteria

Inclusion criteria

  • Signed written Informed Consent Form (ICF) and ability to comply with protocol-specified visits and related procedures.
  • Age ≥ 18 years.
  • Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1.
  • Expected survival ≥ 6 months.
  • Histologically confirmed adenocarcinoma of the stomach or gastroesophageal junction (GEJ). For GEJ cancer, only Siewert type III and Siewert type II participants not requiring combined thoracotomy are eligible.
  • Clinical stage T3-4Nany or TanyN+M0 (stage II-IVa) gastric/GEJ adenocarcinoma confirmed by endoscopic ultrasound or contrast-enhanced CT/MRI within 4 weeks before the first dose, per the American Joint Committee on Cancer (AJCC) 8th edition gastric cancer TNM staging system.
  • Within 4 weeks before the first dose, evaluated by a responsible surgeon based on medical history and confirmed to meet study requirements for radical R0 resection.

Exclusion criteria

  • Histologically or cytologically confirmed other pathologic types (e.g., squamous cell carcinoma, sarcoma, undifferentiated carcinoma) or combined gastrointestinal stromal tumor (GIST) before randomization.
  • Suspicious metastatic lesions or locally advanced unresectable disease, regardless of stage.
  • History of gastrointestinal perforation or fistula within 6 months before randomization. May be enrolled if perforation/fistula has been surgically treated (repaired/resected) and disease recovery/remission is confirmed by the investigator.
  • Active diverticulitis, intra-abdominal abscess, or gastrointestinal obstruction.
  • Inability to swallow, malabsorption syndrome, or uncontrolled nausea/vomiting/diarrhea, or other severe gastrointestinal diseases affecting drug intake/absorption.
  • Any life-threatening bleeding event within 3 months before randomization, or grade 3/4 gastrointestinal/variceal bleeding requiring endoscopic/surgical intervention.
  • Active uncontrolled bleeding or known bleeding diathesis.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Allocation
Randomized
Model
Parallel assignment
Masking
Single blind
Primary purpose
Treatment

Study locations

China · 1 center
  • Sun Yat-sen University Cancer Center — Guangzhou

Identifiers

NCT: NCT07643623 · CIBI310M301

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗