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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 mai 2026 mis à jour par: 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.

Aperçu de l'étude

Statut

Pas encore de recrutement

Description détaillée

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.

Type d'étude

Observationnel

Inscription (Estimé)

160

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

Lieux d'étude

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

  • Adulte
  • Adulte plus âgé

Accepte les volontaires sains

Non

Méthode d'échantillonnage

Échantillon non probabiliste

Population étudiée

Histologically confirmed endometrial cancer on preoperative endometrial biopsy

La description

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

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

Que mesure l'étude ?

Principaux critères de jugement

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

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
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
Délai: 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
Délai: 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
Délai: 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
Délai: Baseline (pre-procedure), perioperative/periprocedural period
Baseline (pre-procedure), perioperative/periprocedural period

Collaborateurs et enquêteurs

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Publications et liens utiles

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Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Estimé)

19 mai 2026

Achèvement primaire (Estimé)

30 avril 2028

Achèvement de l'étude (Estimé)

30 avril 2036

Dates d'inscription aux études

Première soumission

22 avril 2026

Première soumission répondant aux critères de contrôle qualité

6 mai 2026

Première publication (Réel)

13 mai 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

20 mai 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

18 mai 2026

Dernière vérification

1 mai 2026

Plus d'information

Termes liés à cette étude

Plan pour les données individuelles des participants (IPD)

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OUI

Type d'informations de prise en charge du partage d'IPD

  • PROTOCOLE D'ÉTUDE

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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