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Comparison of Sentinel Lymph Node Applications in Endometrial Cancer Cases Performed With Vaginal Natural Orifice Transluminal Endoscopic Surgery (V-NOTES) and Conventional Laparoscopy (V-COSMOS)

18. maj 2026 opdateret af: Ghanim Khatib, Cukurova University

Comparison of Sentinel Lymph Node Applications in Endometrial Cancer Cases Performed With V-NOTES and Conventional Laparoscopy: A Multicenter Prospective Observational Study

Endometrial cancer is a common cancer in women, and surgery is usually the first step in treatment. During surgery, doctors often check nearby lymph nodes to see if the cancer has spread. A newer method called sentinel lymph node (SLN) mapping allows doctors to examine only the first few lymph nodes most likely to contain cancer. This can reduce the need for removing many lymph nodes and may lower the risk of complications.

Minimally invasive surgery is commonly performed using small abdominal incisions (laparoscopy). A newer technique, called vaginal natural orifice transluminal endoscopic surgery (vNOTES), allows the surgery to be performed through the vagina without any cuts on the abdomen. This approach may lead to less pain, quicker recovery, and no visible scars.

This study will compare these two surgical methods-laparoscopy and vNOTES-in patients with early-stage endometrial cancer. Researchers will look at how safe and effective each method is, how patients recover after surgery, and how well the sentinel lymph node procedure works with each technique. The study will also examine how quickly surgeons become experienced with the newer vNOTES method.

The goal of this research is to determine whether vNOTES can be a safe and effective alternative to standard laparoscopic surgery, while offering potential benefits for patients.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Detaljeret beskrivelse

Endometrial cancer is one of the most common malignancies of the female genital tract, and surgical staging constitutes the cornerstone of its management. In recent years, sentinel lymph node (SLN) mapping has been increasingly used as an alternative to systematic pelvic and paraaortic lymphadenectomy. The SLN approach reduces unnecessary extensive lymph node dissections, thereby decreasing surgical morbidity while enabling reliable assessment of lymphatic spread.

With the advancement of minimally invasive surgery, conventional laparoscopy has become widely used in the surgical management of endometrial cancer. In recent years, however, transvaginal natural orifice transluminal endoscopic surgery (vNOTES) has been increasingly adopted in gynecologic surgery due to its potential advantages, including the absence of abdominal incisions, reduced postoperative pain, faster recovery, and improved cosmetic outcomes. Nevertheless, prospective data comparing the vNOTES approach with conventional laparoscopy-particularly in terms of SLN mapping success and surgical outcomes-remain limited.

The aim of this study is to comparatively evaluate the feasibility, efficacy, safety, perioperative outcomes, and impact on survival of retroperitoneal sentinel lymph node biopsy (SLNB) performed using two different minimally invasive surgical approaches-standard conventional laparoscopy and vNOTES-in patients diagnosed with endometrial cancer that is clinically and radiologically presumed to be confined to the uterus. Another objective is to assess the learning curve of surgeons for the relatively new vNOTES technique in relation to the number of cases performed.

The primary hypothesis of the study is that SLNB performed via the vNOTES approach is a safe, effective, and feasible minimally invasive surgical alternative compared to conventional laparoscopy.

Undersøgelsestype

Observationel

Tilmelding (Anslået)

160

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Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Histologically confirmed endometrial cancer on preoperative endometrial biopsy

Beskrivelse

Inclusion Criteria:

  • Age ≥18 years
  • Histologically confirmed endometrial cancer on preoperative endometrial biopsy
  • Disease confirmed to be confined to the uterus based on clinical evaluation and imaging
  • No evidence of lymphatic or distant metastasis on positron emission tomography/computed tomography(PET/CT) or magnetic resonance imaging (MRI)
  • Surgical staging with sentinel lymph node biopsy recommended by a multidisciplinary tumor board
  • Surgical treatment performed using either conventional laparoscopy or the vNOTES approach

Exclusion Criteria:

  • Presence of extrauterine disease
  • Detection of distant metastasis
  • Surgery performed via an open (laparotomy) approach
  • Incomplete medical records
  • History of prior pelvic radiotherapy

Studieplan

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Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Evaluation of Sentinel Lymph Node Detection Rates in Endometrial Cancer Cases Performed with V-NOTES and Conventional Laparoscopy
Tidsramme: Baseline (pre-procedure), perioperative/periprocedural period
Baseline (pre-procedure), perioperative/periprocedural period

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
The Relationship Between Case Volume and the Learning Curve of Surgeons for Sentinel Lymph Node Procedures in Endometrial Cancer Cases Performed with V-NOTES and Conventional Laparoscopy
Tidsramme: Baseline (pre-procedure), perioperative/periprocedural period
Baseline (pre-procedure), perioperative/periprocedural period
The Impact of Sentinel Lymph Node Applications on Progression-Free Survival in Endometrial Cancer Cases Performed with V-NOTES and Conventional Laparoscopy
Tidsramme: up to 5 years
The impact of sentinel lymph node applications on progression-free survival in endometrial cancer cases performed with V-NOTES and conventional laparoscopy will be evaluated over a follow-up period of 5 years. Progression-free survival is defined as the time from surgery to the first documented disease recurrence, progression, or death from any cause.
up to 5 years
The Impact of Sentinel Lymph Node Applications on Overall Survival in Endometrial Cancer Cases Performed with V-NOTES and Conventional Laparoscopy
Tidsramme: Up to 10 years
The impact of sentinel lymph node applications on overall survival in endometrial cancer cases performed with V-NOTES and conventional laparoscopy will be evaluated over a follow-up period of 10 years. Overall survival is defined as the time from surgery to death from any cause.
Up to 10 years
Evaluation of Surgical Complications in Endometrial Cancer Cases Performed with V-NOTES and Conventional Laparoscopy
Tidsramme: Baseline (pre-procedure), perioperative/periprocedural period
Baseline (pre-procedure), perioperative/periprocedural period

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Sponsor

Cukurova University

Publikationer og nyttige links

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Generelle publikationer

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 (Anslået)

19. maj 2026

Primær færdiggørelse (Anslået)

30. april 2028

Studieafslutning (Anslået)

30. april 2036

Datoer for studieregistrering

Først indsendt

22. april 2026

Først indsendt, der opfyldte QC-kriterier

6. maj 2026

Først opslået (Faktiske)

13. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

20. maj 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

18. maj 2026

Sidst verificeret

1. maj 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 164/61

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IPD-deling Understøttende informationstype

  • STUDY_PROTOCOL

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