Viewing Study NCT07482566


Ignite Creation Date: 2026-03-26 @ 3:15 PM
Ignite Modification Date: 2026-03-30 @ 2:57 AM
Study NCT ID: NCT07482566
Status: RECRUITING
Last Update Posted: 2026-03-20
First Post: 2026-03-15
Is NOT Gene Therapy: True
Has Adverse Events: False

Brief Title: Proximal Versus Total Gastrectomy for Locally Advanced Siewert Type II-III Gastroesophageal Junction Cancer
Sponsor: Nurettin Şahin
Organization:

Study Overview

Official Title: A Multicenter Prospective Randomized Double-Blind Clinical Trial Comparing Proximal Gastrectomy and Total Gastrectomy in Patients With Locally Advanced Siewert Type II-III Gastroesophageal Junction Cancer
Status: RECRUITING
Status Verified Date: 2026-03
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: SIEWERT-RCT
Brief Summary: This multicenter prospective randomized clinical trial aims to compare the safety and oncological effectiveness of proximal gastrectomy and total gastrectomy in patients with locally advanced Siewert type II-III gastroesophageal junction cancer. Eligible patients will be randomly assigned to undergo either proximal gastrectomy or total gastrectomy using open, laparoscopic, or robotic surgical approaches according to clinical suitability. The primary outcome of the study is 3-year disease-free survival. Secondary outcomes include postoperative mortality, postoperative complications, and the number of metastatic lymph nodes retrieved. Patients will be followed for up to five years after surgery to evaluate long-term oncological outcomes.
Detailed Description: Gastroesophageal junction cancers represent a challenging oncological entity, particularly in patients with locally advanced Siewert type II-III tumors. Total gastrectomy has traditionally been considered the standard surgical treatment; however, proximal gastrectomy has gained increasing interest in recent years due to potential advantages in postoperative functional outcomes and reduced surgical morbidity. Nevertheless, concerns remain regarding the adequacy of oncological clearance and lymph node dissection with proximal gastrectomy.

This multicenter prospective randomized clinical trial is designed to evaluate the safety, feasibility, and oncological outcomes of proximal gastrectomy compared with total gastrectomy in patients with locally advanced Siewert type II-III gastroesophageal junction cancer. Patients diagnosed through endoscopic and histopathological evaluation and deemed operable after multidisciplinary tumor board discussion will be included. Following informed consent, participants will be randomized in a parallel design to undergo either proximal gastrectomy or total gastrectomy with D2 lymph node dissection (D2 lymphadenectomy). Surgical procedures may be performed via open, laparoscopic, or robotic approaches based on surgeon preference and patient suitability.

Baseline demographic characteristics, perioperative variables, pathological findings, postoperative morbidity and mortality, and long-term oncological outcomes will be prospectively recorded. The primary endpoint is 3-year disease-free survival (DFS), while secondary endpoints include postoperative complications, mortality, and the number of metastatic lymph nodes. Patients will be followed at predefined intervals for up to five years after surgery. The results of this study are expected to provide high-level evidence to guide surgical decision-making in the management of locally advanced gastroesophageal junction cancers.

Study Oversight

Has Oversight DMC: False
Is a FDA Regulated Drug?: False
Is a FDA Regulated Device?: False
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: