Early Gastric Cancer in China: Real-World Outcomes by Treatment Type

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a retrospective observational study using a large prospective clinical database to describe clinicopathological features, treatment patterns, and long-term outcomes of early gastric cancer in China. It will compare overall survival and disease-free survival across treatment modalities and identify factors that influence prognosis. Data will be drawn from patients treated at Beijing Friendship Hospital who meet predefined eligibility criteria and have signed informed consent. The study will exclude patients with incomplete data, indeterminate preoperative classification, or loss to follow-up. Findings may help refine real-world treatment decisions for early gastric cancer.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* patients aged between 18 and 90 years;
* preoperative endoscopic biopsy-confirmed gastric adenocarcinoma;
* clinical stage early gastric (cT1NxM0) cancer according to the AJCC 8th edition TNM staging system;
* patients who have signed a broad informed consent.
* Received primary treatment (including endoscopic resection, laparoscopic surgery, open surgery, or combined laparoscopic-endoscopic approach) at Beijing Friendship Hospital.

Exclusion Criteria:

* pregnant or breastfeeding women;
* Preoperative or intraoperative diagnosis remained indeterminate due to insufficient pathological or imaging evidence, such that the patient could not be clearly classified as early gastric cancer prior to treatment;
* Critical clinical data were severely incomplete or missing；
* Completely lost to follow-up with no available information to confirm survival status.

Where it's running

• Beijing Friendship Hospital, Capital Medical University
  Beijing, China Recruiting

Study contacts

• Study coordinator: Zhi Zheng, Attending surgon
• Email: zhengzhi@ccmu.edu.cn
• Phone: +86-13811132175

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.