Non-surgical Management After NIT for dMMR/MSI-H GC
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
- This is an observational study: the protocol does not assign a study treatment.
- Who it may be relevant to
- Registry conditions: Non-surgical Management;dMMR/MSI-H Gastric Cancer;Neoadjuvant Immunotherapy. 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
- Center list to be confirmed — check the primary protocol.
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Non-surgical Management After Neoadjuvant Immunotherapy for Locally Advanced dMMR/MSI-H Gastric Cancer: WWWGC Phase II Study
Overview
Gastric cancer is one of the most common cancers worldwide and has a poor prognosis Immunotherapy significantly improves the prognosis of gastric cancer. In resectable gastric/gastroesophageal junction adenocarcinoma (GAC/GEJA) C, mismatch repair deficiency (dMMR)/microsatellite instability (MSI-H) can improve survival, and immunotherapy can avoid chemotherapy or surgery. The dMMR/MSI-H status is the strongest predictive biomarker for the benefit of immunotherapy with anti-programmed death receptor 1 and its ligands (PD-1/PD-L1) in advanced solid tumors, especially metastatic gastric/gastroesophageal junction adenocarcinoma. The INFINITY study provides Durvalumab combined with Tremelimumab as a treatment option with significant benefits for preoperative treatment of dMMR/MSI GAC/GEJAC, as well as the feasibility of non-surgical treatment strategies for such gastric cancer patients At present, there are no studies related to Asian gastric cancer patients, which are worthy of further verification and exploration in Asian gastric cancer cohorts.
Primary outcome measures
- Recurrence-free survival (RFS) [Time frame: One year, three years, or five years after the end of immunotherapy]
- Overall survival (OS) [Time frame: One year, three years, or five years after the end of immunotherapy]
Eligibility criteria
Inclusion criteria
Patients over 18 years old with advanced dMMR/MSI-H gastric cancer; Neoadjuvant therapy is needed (immunotherapy, chemotherapy + immunotherapy); The patient voluntarily and agreed to join the clinical research.
Exclusion criteria
Gastric cancer combined with invasion and metastasis; Gastric cancer combined with other malignant tumors; Gastric cancer combined with dysfunction of other organs; Unwilling to participate in clinical research.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Study design
- Observational model
- Cohort
Study locations
Center list to be confirmed — check the primary protocol.
Identifiers
NCT: NCT07646574 · ChiCTR2600120174