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Length of the Proximal Resection Margin for Siewert-II/Siewert-III Tumors

7. december 2017 opdateret af: Jian-Kun Hu, West China Hospital

The Relationship Between the Length of the Proximal Resection Margin and Long-term Survival for Adenocarcinomas of the Esophagogastric Junction (Siewert-II/Siewert-III)- Randomized Controlled Trial

The incidence of adenocarcinomas of the esophagogastric junction (AEJ) has increased rapidly during the past decades. By the Siewert classification, the AEJ is the tumor center located 5 cm above the anatomic cardia and 5 cm below it, which is divided into three individual subtypes. Complete tumor resection is the primary therapy strategies for tumors of the AEJ. The Japan Clinical Oncology Group 9502 (JCOG 9502) found that transabdominal or transhiatal approach gastrectomy has better survival outcomes compared with left thoracoabdominal approach surgery for Siewert II/III tumors. Transabdominal approach gastrectomy is recommended as the standard treatment strategy for Siewert II/III tumors by the guidelines of the Japanese Gastric Cancer Association (JGCA). However, the length of the proximal resection margin for Siewert-II/III tumors by transabdominal/transhiatal gastrectomy is still controversies. Previous study found that longer than 2cm proximal resection margin had better survival outcome than less than 2cm proximal resection margin for Siewert-II/III tumors. On the other sides, due to more advanced tumor stage of patients in China when compared with Japan and Korea. It is necessary to conduct a randomized control study to analyze the length of resection margin in advanced adenocarcinomas of esophagogastric junction.

Therefore, this study was aimed to include those Siewert II/III tumor patients in Gastrointestinal Surgery Department, West China Hospital, Sichuan University to analyze the relationship between the length of proximal resection margin and survival outcomes.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Standard Operating Procedure (SOP)

  1. Preoperative evaluation Patients satisfied with inclusion/exclusion criteria will be informed to join in the clinical study and signature the inform consent.
  2. Randomization: Intraoperative evaluation found that transabdominal or transhiatal R0, D2 lymphadenectomy, total gastrectomy can be performed, the case will entrance into the Randomization period. Random numbers are computer-generated, with the third party applications.
  3. Surgical procedures: The surgical treatments is adopted the total gastrectomy according to the Japanese Gastric Cancer treatments guidelines, 2010, Version 3. Patients in the Group A with 3cm length proximal resection margin and patients in the Group B with 5cm length proximal resection margin. Intraoperative frozen section will routinely performed to secure the tumor free resection margin. If the positive resection margin is found by the intraoperative frozen section, supplementary resection was depend on the characteristics of each patients. Whether these patients with supplementary resection, the length of supplementary resection and the times of the supplementary resection are all needed to record. The two study will take the similar surgical procedures except for the length of the resection margin.
  4. Postoperative recovery: Postoperative recovery period need to collect those relevant parameters of all the patients. All the relevant parameters had definitely definition in the Case Report Form of this study which included the preoperative, intraoperative and postoperative clinicopathologic characteristics.
  5. Follow-up: The follow-up of this study divide into two parts, the postoperative complications and survival outcomes. The postoperative complications is graded by the Clavien-Dindo classification. The survival outcomes included recurrence type, relapse free survival (months) and the overall survival (months).

Undersøgelsestype

Interventionel

Tilmelding (Forventet)

320

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

  • Kina
    • Sichuan
      • Chengdu, Sichuan, Kina, 610041
        • Rekruttering
        • West China Hospital
        • Ledende efterforsker:
          • Jian-Kun Hu, M.D.Ph.D.
        • Kontakt:
        • Kontakt:
        • Underforsker:
          • Wei-Han Zhang, M.D.
        • Underforsker:
          • Xin-Zu Chen, M.D.

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 75 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  1. Preoperative endoscopy and biopsy confirmed upper third gastric adenocarcinoma (Siewert-II/Siewert-III), and predictively feasible of radical total gastrectomy;
  2. Predictively resectable diseases, advanced gastric cancer, of preoperative staging JGCA 14th Edition cT2N0M0-T4aN3bM0, Ib-IIIc stage;
  3. Age：≤75 years, or ≥18 years;
  4. Without serious disease and malignance disease;
  5. WHO performance score ≤2, ASA score ≤3;
  6. No limit to sexual and race;
  7. Informed consent required.

Exclusion Criteria:

  1. Patients with other severe complications cannot tolerate surgery: such as severe heart and lung diseases, heart function below clinical stage 2, uncontrollable hypertension, pulmonary infection, moderate to severe COPD, chronic bronchitis, severe diabetes and / or renal insufficiency, severe hepatitis and / or function below the rank of CHILD B grade, and severe malnutrition, etc;
  2. Patients treated with neoadjuvant chemotherapy or radiation therapy which might affect the efficacy observation;
  3. Severity mental diseases;
  4. Primary lesion cannot be resected in the pattern of transabdominal proximal gastrectomy, but for total gastrectomy, Whipple's procedure, or combined organ resection or with a transthoracic approach surgery;
  5. After signature the Clinical trial agreement, patients and their agent will quit the trial.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Group A
Group A: Patients in the Group A will underwent D2 total gastrectomy and with 3±0.5 cm lengthen proximal resection margin. Intraoperative frozen section will routinely performed to secure the tumor free resection margin.
Procedure: gastrectomy
Transabdominal (include transhiatal) D2 gastrectomy according JGCA gastric cancer treatment guidelines (2010, ver.3) and with 3±0.5 cm lengthen proximal resection margin.
Procedure: gastrectomy
Transabdominal (include transhiatal) D2 gastrectomy according JGCA gastric cancer treatment guidelines (2010, ver.3) and with 5±0.5 cm lengthen proximal resection margin.
Eksperimentel: Group B
Patients in the Group B will underwent D2 total gastrectomy and with 5±0.5 cm lengthen proximal resection margin. Intraoperative frozen section will routinely performed to secure the tumor free resection margin.
Procedure: gastrectomy
Transabdominal (include transhiatal) D2 gastrectomy according JGCA gastric cancer treatment guidelines (2010, ver.3) and with 3±0.5 cm lengthen proximal resection margin.
Procedure: gastrectomy
Transabdominal (include transhiatal) D2 gastrectomy according JGCA gastric cancer treatment guidelines (2010, ver.3) and with 5±0.5 cm lengthen proximal resection margin.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
3-års sygdomsfri overlevelse
Tidsramme: 3 år
3 år

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
3 års samlet overlevelse
Tidsramme: 3 år
3 år
Recurrence type
Tidsramme: 3 years
3 years
The positive rate of proximal resection margin
Tidsramme: Intraoperative
Examined by the intraoperative frozen section
Intraoperative

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

West China Hospital

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

1. januar 2015

Primær færdiggørelse (Forventet)

1. december 2020

Studieafslutning (Forventet)

1. december 2023

Datoer for studieregistrering

Først indsendt

7. december 2014

Først indsendt, der opfyldte QC-kriterier

9. december 2014

Først opslået (Skøn)

10. december 2014

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

11. december 2017

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

7. december 2017

Sidst verificeret

1. december 2017

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • WCH-GC-02

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