Efficacy of Laparoscopic Subtotal Gastrectomy With D2 Lymph Node Dissection for Locally Advanced Gastric Cancer
KLASS-02-RCT
Prospective Multicenter Randomized Controlled Clinical Trial for Comparison Between Laparoscopic and Open Subtotal Gastrectomy With D2 Lymph Node Dissection for Locally Advanced Gastric Cancer
1 other identifier
interventional
1,050
1 country
13
Brief Summary
- It was confirmed that the laparoscopic surgery decreases the postoperative pain and reduces the recovery periods in the various surgical fields such as cholecystectomy and colectomy etc. Also, there are clinical evidences that the laparoscopic surgery is applicable to malignant tumor according to the development of surgical techniques and medical instruments.
- In case of early stage of gastric cancer, as the diverse clinical evidences, the gastrectomy has been commonly applied, however, the opening surgery is still applied for advanced gastric cancer due to lack of clinical evidence.
- In Korea, approximately 38% of patients who undergo surgery for gastric cancer are diagnosed by T2-T3 (AJCC 6th edition) (www.i-kgca.or.kr, National gastric cancer registration business in 2009). There are various clinical evidences to apply laparoscopic surgery to the patients, however, most of them are retrospective or cohort study results.
- For the clinical application of surgical treatment regarding locally advanced gastric cancer using laparoscopic surgical technique, it requires the confirmation of definite execution for laparoscopic gastrectomy and D2 lymph node dissection and the safety of surgery and oncological usefulness should be verified.
- In order for this, it is only possible to confirm through the comparison of short-term surgical results (complications, mortalities, operative time and duration of hospitalization etc) and long-term results (survival rates and recurrence rates etc) between laparoscopic surgery and opening surgery based on the multicenter large-sized randomized prospective study with current standard treatment.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable gastric-cancer
Started Nov 2011
Longer than P75 for not_applicable gastric-cancer
13 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 11, 2011
CompletedFirst Posted
Study publicly available on registry
October 21, 2011
CompletedStudy Start
First participant enrolled
November 21, 2011
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 2, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
June 2, 2018
CompletedNovember 29, 2018
November 1, 2018
6.5 years
October 11, 2011
November 27, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
3 year relapse free survival
In terms of locally advanced gastric cancer, to examine the non-inferiority of disease free sur-vival rate in laparoscopic subtotal gastrectomy with D2 lymph node dissection at postoperative 3 years compared with open subtotal gastrectomy with D2 lymph node dissection
36 months
Secondary Outcomes (6)
Early postoperative complication
3 weeks
Postoperative mortality
90 days
Late postoperative complication
36 months
Postoperative recovery index
4 weeks
Postoperative quality of life
preoperative, 3 weeks, 12 months
- +1 more secondary outcomes
Study Arms (2)
Laparoscopic gastrectomy
EXPERIMENTALLaparoscopic subtotal gastrectomy and D2 lymph node dissection are performed for locally advanced gastric cancer.
Open gastrectomy
ACTIVE COMPARATOROpen subtotal gastrectomy and D2 lymph node dissection are performed for locally advanced gastric cancer.
Interventions
* After laparoscopic observation, the possibility of surgery can be considered by examining inside of abdomen. * The surgeon undergoes laparoscopic subtotal gastrectomy and D2 lymph node dissection * After lymph node dissection, it is possible to undergo gastrectomy on appropriate part and reconstruction under small incision or laparoscopic view. * As the reconstruction, one of the techniques like Billroth I, Billroth II and Roux en Y and so on is applied and there is no limitation on use of appliance.
* After laparotomy, the possibility of surgery can be considered by examining inside of abdomen. * The surgeon undergoes open subtotal gastrectomy and D2 lymph node dissection * After lymph node dissection, one of the techniques likes Billroth I, Billroth II and Roux en Y and so on is applied and there is no limitation on use of appliance.
Eligibility Criteria
You may qualify if:
- The patient from over 20 years to under 80 years
- The patient with the capability for ECOG (Eastern Cooperative Oncology Group performance status) is ranged between 0 and 1
- The patient included between ASA score (American society of anesthesiology) class I and III
- The patient who is diagnosed as gastric adenocarcinoma under preoperative endoscopic biopsy
- The patient who is diagnosed as locally advanced gastric cancer with the suspicious infiltration of over muscular layer without infiltration on adjacent organs, and without or with lymph node metastasis limited to perigastric or around stomach left gastric artery at the preoperative examination.
- The patient who is suitable for subtotal resection in the preoperative examination
- The patient who is fully explained about purpose of trial and contents prior to the participation into this study and signed on the informed consent approved by Institutional Review Board according to own opinion
You may not qualify if:
- The patient who shows distant metastasis under preoperative examination
- The patient with medical history for gastrectomy in the past
- The patient with complication (complete obstruction and perforation) by gastric cancer
- The patient who undergoes anticancer or radiologic therapy prior to the operation or who undergoes endoscopic submucous dissection for currently diagnosed gastric cancer
- The patient who undergoes surgery or anti-cancer radiologic therapy for primary cancer within 5 years
- Vulnerable patients (lack of capacity for decision making, pregnant women (or under planning))
- The patient who has participated into another clinical trial within recent 6 months or who is participating into another trial
- The patient with double cancer of activity and synchronization
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (13)
Department of Surgery , SOON CHUN HYANG UNIVESITY HOSPITAL
Bucheon-si, South Korea
Keimyung University Dongsan Medical Center
Daegu, 700-712, South Korea
Copyright National Cancer Center
Goyang-si, South Korea
Chonnam National University Hwasun Hospital
Hwasun, 519-809, South Korea
Incheon St, Mary's Hostpial, The Catholic University of Korea
Incheon, 403-720, South Korea
Dong-A University Hospital
Pusan, 602-715, South Korea
Department of Surgery, Seoul National University BUNDANG Hospital
Seongnam, South Korea
Department of Surgery, Seoul National University Hospital
Seoul, 110-799, South Korea
Yonsei University Severance Hospital
Seoul, 120-752, South Korea
Yeoeuido St. Mary's Hospital, The Catholic University of Korea
Seoul, 150-713, South Korea
Department of surgery, GANGNAM SEVERANCE HOSPITAL
Seoul, South Korea
EWHA Womans university medical center
Seoul, South Korea
Ajou University Hospital
Suwon, 443-749, South Korea
Related Publications (6)
Kitano S, Iso Y, Moriyama M, Sugimachi K. Laparoscopy-assisted Billroth I gastrectomy. Surg Laparosc Endosc. 1994 Apr;4(2):146-8.
PMID: 8180768BACKGROUNDKim W, Song KY, Lee HJ, Han SU, Hyung WJ, Cho GS. The impact of comorbidity on surgical outcomes in laparoscopy-assisted distal gastrectomy: a retrospective analysis of multicenter results. Ann Surg. 2008 Nov;248(5):793-9. doi: 10.1097/SLA.0b013e3181887516.
PMID: 18948806BACKGROUNDKim HH, Hyung WJ, Cho GS, Kim MC, Han SU, Kim W, Ryu SW, Lee HJ, Song KY. Morbidity and mortality of laparoscopic gastrectomy versus open gastrectomy for gastric cancer: an interim report--a phase III multicenter, prospective, randomized Trial (KLASS Trial). Ann Surg. 2010 Mar;251(3):417-20. doi: 10.1097/SLA.0b013e3181cc8f6b.
PMID: 20160637BACKGROUNDSakuramoto S, Sasako M, Yamaguchi T, Kinoshita T, Fujii M, Nashimoto A, Furukawa H, Nakajima T, Ohashi Y, Imamura H, Higashino M, Yamamura Y, Kurita A, Arai K; ACTS-GC Group. Adjuvant chemotherapy for gastric cancer with S-1, an oral fluoropyrimidine. N Engl J Med. 2007 Nov 1;357(18):1810-20. doi: 10.1056/NEJMoa072252.
PMID: 17978289BACKGROUNDSon SY, Hur H, Hyung WJ, Park YK, Lee HJ, An JY, Kim W, Kim HI, Kim HH, Ryu SW, Kim MC, Kong SH, Cho GS, Kim JJ, Park DJ, Ryu KW, Kim YW, Kim JW, Lee JH, Yang HK, Han SU; Korean Laparoendoscopic Gastrointestinal Surgery Study (KLASS) Group. Laparoscopic vs Open Distal Gastrectomy for Locally Advanced Gastric Cancer: 5-Year Outcomes of the KLASS-02 Randomized Clinical Trial. JAMA Surg. 2022 Oct 1;157(10):879-886. doi: 10.1001/jamasurg.2022.2749.
PMID: 35857305DERIVEDHyung WJ, Yang HK, Park YK, Lee HJ, An JY, Kim W, Kim HI, Kim HH, Ryu SW, Hur H, Kim MC, Kong SH, Cho GS, Kim JJ, Park DJ, Ryu KW, Kim YW, Kim JW, Lee JH, Han SU; Korean Laparoendoscopic Gastrointestinal Surgery Study Group. Long-Term Outcomes of Laparoscopic Distal Gastrectomy for Locally Advanced Gastric Cancer: The KLASS-02-RCT Randomized Clinical Trial. J Clin Oncol. 2020 Oct 1;38(28):3304-3313. doi: 10.1200/JCO.20.01210. Epub 2020 Aug 20.
PMID: 32816629DERIVED
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
San-Uk Han, M.D., Ph.D.
Department of Surgery, Ajou University School of Medicine
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor, Department of Surgery, Ajou University School of Medicine
Study Record Dates
First Submitted
October 11, 2011
First Posted
October 21, 2011
Study Start
November 21, 2011
Primary Completion
June 2, 2018
Study Completion
June 2, 2018
Last Updated
November 29, 2018
Record last verified: 2018-11