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Safety of OGT-assisted Overlap Esophagojejunostomy Versus Traditional Overlap Method (OGT)

Primary Purpose

Gastric Cancer

Status
Recruiting
Phase
Not Applicable
Locations
China
Study Type
Interventional
Intervention
OGT group
Overlap group
Sponsored by
Nanfang Hospital, Southern Medical University
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Gastric Cancer focused on measuring Gastric/gastroesophageal junction (G/GEJ) tumors, Laparoscopy total gastrectomy, Overlap esophagojejunostomy, OGT

Eligibility Criteria

18 Years - 80 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

Aged 18-80 years; Primary lesion is pathologically diagnosed as gastric adenocarcinoma; Expected to live more than 1 year; Tumor located located in gastroesophageal junction (GEJ) involve esophagus no more than 2cm, or in the upper, upper to middle, or entire stomach, and intend to perform laparoscopic total gastrectomy with D2 lymphadenectomy No history of upper abdominal surgery (except for laparoscopic cholecystectomy); Preoperative performance status (ECOG, Eastern Cooperative Oncology Group) of 0 or 1; Preoperative ASA (American Society of Anesthesiologists) scoring: I-III; Sufficient organ functions; Written informed consent.

Exclusion Criteria:

Women during pregnancy or breast-feeding; Body temperature ≥ 38 °C before surgery or infectious disease with a systemic therapy indicated; Severe mental disease; Confirmed stage IV (AJCC 8th) during surgery Severe respiratory disease; Severe hepatic and renal dysfunction; Unstable angina pectoris or history of myocardial infarction within 6 months; History of cerebral infarction or cerebral hemorrhage within 6 months; Gastric cancer complications (bleeding, perforation, obstruction) that requiring emergency surgery.

Sites / Locations

  • Xinhua ChenRecruiting

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Active Comparator

Arm Label

Arm A

Arm B

Arm Description

In OGT group,After the enterotomy was made, the nasogastric tube was pulled out 3 cm from the oesophagal lumen to connect with the OGT. Next, the anvil fork sleeved with OGT insert into the oesophageal mucosa canal by movement of the connection of fork -OGT -gastric tube. Then, the anaesthesiologist continued to pull back the nasogastric tube for 10 cm to ensure that the stapler would not clamp the nasogastric tube. After that, the surgeon began to fire the stapler to perform side-to-side esophagojejunostomy.

In overlap group, the oesophagojejunostomy was performed as reported by Inaba et al. After firing the stapler, two openings were converted into a single entry hole to create an end-to-side oesophagojejunostomy, and the entry hole was closed with full-thickness running suture using barbed sutures intracorporeally.

Outcomes

Primary Outcome Measures

Early operative morbidity
Including wound complications (infection, effusion, dehiscence,poor healing), intra-abdominal active bleeding,digestive tract active bleeding, anastomotic leakage, anastomotic stenosis, intestinal fistula, pancreatic fistula, chylous fistula, intra-abdominal abscess formation, gastroparesis, intestinal paralysis, intestinal obstruction, cholecystitis, pancreatitis, pneumonia, pleural effusion, pulmonary embolism, cardiocerebrovascular complications, deep venous thrombosis, urinary tract complications, catheter-related complications, condition of pain,etc.;

Secondary Outcome Measures

Time of oesophagojejunostomy
Time of esophagojejunostomy was defined as the time from making the entry hole for the anastomosis on the esophageal stump to the time the common entry hole was closed and reinforced using barbed threads
The success rate of inserting anvil fork into oesophagal lumen at first attempt
Inserting anvil fork into esophageal lumen at first attempt: when inserting the anvil fork into the esophageal hole, the anvil fork can be correctly placed in a satisfactory position and at a satisfactory angle into the esophageal mucosa canal to be fired for esophagojejunostomy by inserting it only once.
The number of attempts to insert anvil fork into oesophagus
The number of times required to try to insert the anvil fork in a satisfactory position and at a satisfactory angle into the esophageal mucosa canal to be fired for esophagojejunostomy.

Full Information

First Posted
July 1, 2022
Last Updated
November 2, 2022
Sponsor
Nanfang Hospital, Southern Medical University
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1. Study Identification

Unique Protocol Identification Number
NCT05450835
Brief Title
Safety of OGT-assisted Overlap Esophagojejunostomy Versus Traditional Overlap Method
Acronym
OGT
Official Title
Safety of OGT-assisted Overlap Esophagojejunostomy Versus Traditional Overlap Method During Laparoscopic Total Gastrectomy: Protocol of CLASS15-01 Multicenter Randomized Controlled Trial
Study Type
Interventional

2. Study Status

Record Verification Date
November 2022
Overall Recruitment Status
Recruiting
Study Start Date
September 1, 2022 (Actual)
Primary Completion Date
August 30, 2025 (Anticipated)
Study Completion Date
February 28, 2026 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Nanfang Hospital, Southern Medical University

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
Abstract Background Our previous studies have shown OGT method significantly simplified overlap esophagojejunostomy with good short-term outcomes, and provided new perspectives for optimizing esophagojejunostomy. However, the safety and efficiency of OGT method still need evidence of randomized controlled trial. Methods: This CLASS15-01 trial is a prospective, multicenter, randomized, controlled, open, and non-inferiority trial. Three hundred and twelve patients who met the inclusion criteria and did not accord with the exclusion criteria will be randomly divided into OGT group(n=156) and traditional group(n=156). The primary purpose of this study is to evaluate the early operative morbidity and mortality of OGT method compared with traditional method for Siewert III/II esophagogastric junction cancer and gastric cancer. The second purpose is to evaluate the success rate of inserting anvil fork into esophageal lumen at first attempt, attempts of inserting anvil fork into esophagus, time of esophagojejunostomy,recovery course and compare the postoperative hospital stay of the patients enrolled in this study. Discussion: This CLASS15-01 trial is the first prospective randomized two-arm controlled study to determine the safety and efficiency of OGT method compared with traditional overlap method. Through this trial, we hope to show that experienced surgeons can safely perform OGT-assisted overlap esophagojejunostomy for Siewert III/II esophagogastric junction cancer and gastric cancer.
Detailed Description
Methods Objectives This CLASS15-01 trial is a prospective, multicenter trial for OGT-assisted overlap esophagojejunostomy and traditional overlap method during totally laparoscopic total gastrectomy for Siewert III/II esophagogastric junction cancer and gastric cancer. The primary purpose of this study is to evaluate the early operative morbidity and mortality and determine the safety of OGT method compared with traditional overlap method for Siewert III/II esophagogastric junction cancer and gastric cancer. The second purpose is to evaluate the success rate of inserting anvil fork into esophageal lumen at first attempt, attempts of inserting anvil fork into esophagus, time of esophagojejunostomy,recovery course and compare the postoperative hospital stay of the patients enrolled in this study. Study design This CLASS15-01 trial is a prospective, multicenter, randomized, controlled, open, and non-inferiority trial comparing the safety of OGT method during TLTG for Siewert III /II esophagogastric junction cancer and gastric cancer compared with traditional overlap method . Participating surgeons To participate in this CLASS15 trial, the responsible surgeons should meet the following qualifications: first, completing at least 50 cases of TLTG with D2 lymphadenectomy;second, passing the blind review of surgery video. Briefly, the applicants should provide the videos of TLTG with traditional overlap and OGT method in recent 3 months (three cases each) to the CLASS Research Council.CLASS Research Council will select two videos of traditional overlap and OGT method separately, and randomly appoint three experts to peer review blindly. When three experts unanimously approved it, the applicant will be permitted to participate in this study as a researcher. Sample size calculation This is a non-inferiority verification study on clinical safety, with the early operative morbidity and mortality rate as the main index for safety evaluation. According to the previous reports, the morbidity and mortality rate for TLTG with traditional overlap is about 29%. Setting α=0.025, β = 0.2, and the noninferiority margin δ = 5%, the sample size required for each group is 148 cases. Considering that the dropout rate for this clinical study is about 5%, the sample size is determined as 156 cases in each group. Inclusion criteria Aged 18-80 years; Primary lesion is pathologically diagnosed as gastric adenocarcinoma; Expected to live more than 1 year; Tumor located located in gastroesophageal junction (GEJ) involve esophagus no more than 2cm, or in the upper, upper to middle, or entire stomach, and intend to perform laparoscopic total gastrectomy with D2 lymphadenectomy No history of upper abdominal surgery (except for laparoscopic cholecystectomy); Preoperative performance status (ECOG, Eastern Cooperative Oncology Group) of 0 or 1; Preoperative ASA (American Society of Anesthesiologists) scoring: I-III; Sufficient organ functions; Written informed consent. Exclusion criteria Women during pregnancy or breast-feeding; Body temperature ≥ 38 °C before surgery or infectious disease with a systemic therapy indicated; Severe mental disease; Confirmed stage IV (AJCC 8th) during surgery Severe respiratory disease; Severe hepatic and renal dysfunction; Unstable angina pectoris or history of myocardial infarction within 6 months; History of cerebral infarction or cerebral hemorrhage within 6 months; Gastric cancer complications (bleeding, perforation, obstruction) that requiring emergency surgery. Randomized grouping In this study, the central dynamic, stratified randomization method is adopted, and the factors including age, TNM stage, tumor location, neoadjuvant, BMI, and investigators, are considered. After each case is enrolled, the research center will arrange the research assistant to send the information of included cases (age,TNM stage, tumor location, neoadjuvant, and BMI) to the data center. After analyzing the case information by the center randomization department, the case grouping will be determined. Quality control To ensure the rationality of the ESJ procedure, a series of photographs of ESJ (traditional and OGT) are taken for assessment. All photographs will be saved and submitted to CLASS data center within 1 week after the operation. The CLASS Research Committee will monitor and review regularly to ensure the quality of operation. Outcome measurements Primary endpoint The primary endpoint of the CLASS15 trial is noninferiority in the early operative morbidity and mortality, which are defined as the event observed within 30 days following surgery. The postoperative complications are defined and graded according to the grading system of Clavien-Dindo Classification. To measure this endpoint, the criteria are suggested in details as follows: Intraoperative complications Surgery-related complications: intraoperative hemorrhage (≥400 ml) and injury; Pneumoperitoneum-related complications: hypercapnia, mediastinal emphysema, subcutaneous emphysema, aeroembolism, and respiratory and circulatory instability caused by pneumoperitonum; Anesthesia-related complication. Early postoperative complications Surgery-related complications: wound complications (infection, effusion, dehiscence,poor healing), intra-abdominal active bleeding,digestive tract active bleeding, anastomotic leakage, anastomotic stenosis, intestinal fistula, pancreatic fistula, chylous fistula, intra-abdominal abscess formation, gastroparesis, intestinal paralysis, intestinal obstruction, cholecystitis, pancreatitis, etc. System-related complications: pneumonia, pleural effusion, pulmonary embolism, cardiocerebrovascular complications, deep venous thrombosis, urinary tract complications,catheter-related complications, condition of pain,etc.; Secondary endpoint The secondary endpoint of this study is the time of oesophagojejunostomy, the success rate of inserting anvil fork into oesophagal lumen at first attempt, the number of attempts to insert anvil fork into oesophagus and postoperative recovery course, which is assessed by time to first ambulation, flatus, liquid diet, soft diet, etc. In addition, the length of postoperative hospital stay will be recorded. Follow-up The patients in both groups will be followed up 6 months after operation. A physical examination, a complete blood count, blood biochemical examination (albumin, prealbumin, total bilirubin, direct bilirubin, AST, ALT, creatinine, blood urea nitrogen, and blood glucose), and serum tumor markers (AFP, CEA, CA19-9, CA12-5, and CA72-4) analyses will be performed. In addition, imageological examination (total abdominal and pelvic enhanced CT, chest X-ray, upper gastrointestinal tract iodine imaging, gastroscopy, ultrasonography, whole body bone scan, PET-CT, etc.) will also be performed if needed. All the results will be recorded and evaluated by the specialist. Statistical analysis Statistical analysis will be performed with SPSS 25.0 (SPSS Inc., Chicago, IL, USA). Continuous variables with normal distribution are expressed as the mean ± standard deviation, and continuous variables with a skewed distribution are expressed as the median (interquartile range [IQR]) and were compared across groups using. Continuous variables were compared across groups using the independent t-test or Mann-Whitney U test if the data were highly skewed. Categorical variables are expressed as the number and percentage and were compared with the chi-square test or Fisher's exact test(if a variable's exact theory frequency was less than 1). P < 0.05 was considered statistically significant.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Gastric Cancer
Keywords
Gastric/gastroesophageal junction (G/GEJ) tumors, Laparoscopy total gastrectomy, Overlap esophagojejunostomy, OGT

7. Study Design

Primary Purpose
Treatment
Study Phase
Not Applicable
Interventional Study Model
Parallel Assignment
Model Description
In OGT group,the oesophagojejunostomy was performed with OGT-assisted overlap method. In overlap group, the oesophagojejunostomy was performed as reported by Inaba et al.
Masking
None (Open Label)
Allocation
Randomized
Enrollment
312 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
Arm A
Arm Type
Experimental
Arm Description
In OGT group,After the enterotomy was made, the nasogastric tube was pulled out 3 cm from the oesophagal lumen to connect with the OGT. Next, the anvil fork sleeved with OGT insert into the oesophageal mucosa canal by movement of the connection of fork -OGT -gastric tube. Then, the anaesthesiologist continued to pull back the nasogastric tube for 10 cm to ensure that the stapler would not clamp the nasogastric tube. After that, the surgeon began to fire the stapler to perform side-to-side esophagojejunostomy.
Arm Title
Arm B
Arm Type
Active Comparator
Arm Description
In overlap group, the oesophagojejunostomy was performed as reported by Inaba et al. After firing the stapler, two openings were converted into a single entry hole to create an end-to-side oesophagojejunostomy, and the entry hole was closed with full-thickness running suture using barbed sutures intracorporeally.
Intervention Type
Procedure
Intervention Name(s)
OGT group
Intervention Description
In OGT group,the nasogastric tube was pulled out 3 cm from the oesophagal lumen to connect with the OGT. Meanwhile, the OGT was sleeved on anvil fork extracorporeally and the linear stapler was put into abdomen through trocar on the right side and then cartridge fork was inserted through jejunum opening towards the oral side of the lumen. Next, the anvil fork sleeved with OGT insert into the oesophageal mucosa canal by movement of the connection of fork -OGT -gastric tube.
Intervention Type
Procedure
Intervention Name(s)
Overlap group
Intervention Description
In overlap group, the oesophagojejunostomy was performed as reported by Inaba et al.
Primary Outcome Measure Information:
Title
Early operative morbidity
Description
Including wound complications (infection, effusion, dehiscence,poor healing), intra-abdominal active bleeding,digestive tract active bleeding, anastomotic leakage, anastomotic stenosis, intestinal fistula, pancreatic fistula, chylous fistula, intra-abdominal abscess formation, gastroparesis, intestinal paralysis, intestinal obstruction, cholecystitis, pancreatitis, pneumonia, pleural effusion, pulmonary embolism, cardiocerebrovascular complications, deep venous thrombosis, urinary tract complications, catheter-related complications, condition of pain,etc.;
Time Frame
Within 30 days following surgery
Secondary Outcome Measure Information:
Title
Time of oesophagojejunostomy
Description
Time of esophagojejunostomy was defined as the time from making the entry hole for the anastomosis on the esophageal stump to the time the common entry hole was closed and reinforced using barbed threads
Time Frame
Surgery
Title
The success rate of inserting anvil fork into oesophagal lumen at first attempt
Description
Inserting anvil fork into esophageal lumen at first attempt: when inserting the anvil fork into the esophageal hole, the anvil fork can be correctly placed in a satisfactory position and at a satisfactory angle into the esophageal mucosa canal to be fired for esophagojejunostomy by inserting it only once.
Time Frame
Surgery
Title
The number of attempts to insert anvil fork into oesophagus
Description
The number of times required to try to insert the anvil fork in a satisfactory position and at a satisfactory angle into the esophageal mucosa canal to be fired for esophagojejunostomy.
Time Frame
Surgery

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
80 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Aged 18-80 years; Primary lesion is pathologically diagnosed as gastric adenocarcinoma; Expected to live more than 1 year; Tumor located located in gastroesophageal junction (GEJ) involve esophagus no more than 2cm, or in the upper, upper to middle, or entire stomach, and intend to perform laparoscopic total gastrectomy with D2 lymphadenectomy No history of upper abdominal surgery (except for laparoscopic cholecystectomy); Preoperative performance status (ECOG, Eastern Cooperative Oncology Group) of 0 or 1; Preoperative ASA (American Society of Anesthesiologists) scoring: I-III; Sufficient organ functions; Written informed consent. Exclusion Criteria: Women during pregnancy or breast-feeding; Body temperature ≥ 38 °C before surgery or infectious disease with a systemic therapy indicated; Severe mental disease; Confirmed stage IV (AJCC 8th) during surgery Severe respiratory disease; Severe hepatic and renal dysfunction; Unstable angina pectoris or history of myocardial infarction within 6 months; History of cerebral infarction or cerebral hemorrhage within 6 months; Gastric cancer complications (bleeding, perforation, obstruction) that requiring emergency surgery.
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
xinhua chen, Ph.D
Phone
+8615626452302
Email
xinhuachen03@163.com
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Jiang Yu, Prof.
Organizational Affiliation
Nanfang Hospital, Southern Medical University
Official's Role
Principal Investigator
Facility Information:
Facility Name
Xinhua Chen
City
Guangzhou
State/Province
Guangdong
ZIP/Postal Code
510515
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
xinhua chen, Prof.
Phone
+8615626452302
Email
15626452302@163.com

12. IPD Sharing Statement

Plan to Share IPD
Yes
IPD Sharing Plan Description
The IPD will be available for the investigation.
IPD Sharing Time Frame
August, 2022-August, 2025
IPD Sharing Access Criteria
All the accession for research will be admitted.

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Safety of OGT-assisted Overlap Esophagojejunostomy Versus Traditional Overlap Method

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