Laparoscopic total gastrectomy for gastric cancer

Multicenter Randomized Controlled Trial for Application of Laparoscopic Total Gastrectomy With Lymph Node Dissection for Gastric Cancer (KLASS-06)

Not applicable Interventional Yonsei University · NCT03385018

This study is testing if a less invasive surgical method for removing the stomach can be safer and more effective for people with advanced gastric cancer compared to traditional open surgery.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment772 (estimated)
Ages20 Years to 80 Years
SexAll
SponsorYonsei University Academic / other
Locations1 site (Seoul)
Trial IDNCT03385018 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to compare the efficacy and safety of laparoscopic total gastrectomy with D2 lymph node dissection against traditional open surgery for patients with proximal advanced gastric cancer. The study will involve a multicenter randomized approach to assess technical outcomes and oncologic safety. By focusing on patients who can undergo curative resection, the trial seeks to provide robust data on the laparoscopic method's effectiveness in this challenging surgical context.

Who should consider this trial

Good fit: Ideal candidates are adults aged 20 to 80 with resectable gastric adenocarcinoma and a performance status of ECOG 0 or 1.

Not a fit: Patients with distant metastasis or those whose tumors cannot be curatively resected will not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could lead to less invasive surgical options for patients with gastric cancer, potentially improving recovery times and outcomes.

How similar studies have performed: While laparoscopic techniques have shown promise in other studies, this specific comparison with open surgery for proximal gastric cancer is novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients who are over 20 and below 80 years old
* Patients who have performance status of ECOG 0 or 1
* Patients with American Society of Anesthesiology score of class I to III
* Patients who are diagnosed with gastric adenocarcinoma not involving Z-line by endoscopy with biopsy
* Patients with tumors which can be curatively resected by total gastrectomy with lymph node dissection based on preoperative study
* Patients who have primary gastric carcinoma invaded into over muscle propria, and not into adjacent organ in preoperative studies (cT2 \~ cT4a)
* Patients who have no metastasis to lymph nodes or limited metastasis to perigastric lymph node metastasis in preoperative studies (cN0 \~ cN2)
* Patients who agree with participating in the clinical study with informed consents
* Patients who can be followed for at least 3 years after study enrollment

Exclusion Criteria:

* Patients who have possibility of distant metastasis in preoperative studies
* Patients who have history of gastric resection with any cause
* Patients who have complications (bleeding or obstruction) of gastric cancer
* Patients who are treated by chemo(radio)therapy or endoscopic submucosal dissection for gastric cancer
* Patients who are diagnosed and treated with other malignancies within 5 years
* Vulnerable patients
* Patients who participating or participated in other clinical trial within 6 months

Where this trial is running

Seoul

Study contacts

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 Gastric Cancer
Last reviewed 2026-06-15 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.