Safety and Efficacy of Using a Novel Full Visual Access Platform System in Transvaginal Hysterectomy

February 10, 2025 updated by: Jing Liang, China-Japan Friendship Hospital

The Establishment and Clinical Study of the Whole Visual VNOTES Approach Platform

The modified vNOTES hysterectomy was accomplished and validated for efficacy and safety using a multi-access vaginal confinement instrument with a fully visualised vaginal access platform.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

A multi-center prospective randomized controlled trial was conducted to evaluate the efficacy and safety of the vNOTES technique in patients with uterine fibroids who were scheduled for total hysterectomy. The patients were randomly assigned to the vNOTES group (experimental group) and the traditional vNOTES group (control group). The access platform was established using a visualization method or the traditional laparoscopic method, and the surgical operation was completed. The time required to establish the platform, the amount of bleeding, the total surgical time, the anesthesia indicators, complications, and follow-up indicators were recorded, and the effectiveness and safety of the technique were evaluated.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
94

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • China
    • Beijing
      • Beijing, Beijing, China, 086010
        • Recruiting
        • China-Japan Friendship Hospital
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Female patients ≤ 60years old
  2. Patients requiring total hysterectomy (with or without bilateral adjuncts or salpingectomy) due to uterine fibroids
  3. BMI ranges from 18.5 to 27.9kg/m2;
  4. Informed consent signed by the subject himself or his legal representative.

Exclusion Criteria:

  1. Pregnant and lactating women;
  2. asexual life history, vaginal malformations or adhesions, postmenopausal vaginal atrophy and stenosis;
  3. Preoperative examination for malignant possibility
  4. Uterine volume ≥20 weeks, history of pelvic inflammatory disease, severe endometriosis, degree III or IV uterine prolapse; Previous surgical history of intestinal obstruction, recurrent pelvic inflammatory disease, pelvic tuberculosis, and pelvic abdominal tumor; Gynecological examination of the uterine and rectal fossa is completely closed;
  5. Patients known to have severe hepatic or renal dysfunction;
  6. Patients with known blood disorders, coagulation disorders, active bleeding at any site, or bleeding propensity;
  7. complicated with serious diseases of central nervous system, cardiovascular system, liver and kidney, digestive tract, respiratory system, endocrine and metabolism (thyroid disease, Cushing's syndrome, hyperprolactinemia), skeletal and muscular system and mental disorders;
  8. patients with acute infection;
  9. Known to have participated in any other clinical trial or taken hormone therapy within 3 months;
  10. who cannot sign the informed consent;
  11. For those with known or suspected poor compliance who could not complete the trial.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Full visibility vnotes group
A suitable size of multi-channel vaginal sealing instrument was inserted from the vagina, pneumoperitoneum formed air pressure, and the vaginal dome was dilated and fully exposed. The dome was opened under laparoscopy, and an approach platform was established to complete the total hysterectomy.
Device: Vnotes surgery using fully visualised surgical instruments
Vnotes surgery using fully visualised surgical instruments
Experimental: Traditional vnotes group
The vaginal fornix and part of cervical ligaments were incised by vaginal operation, and an approach platform was established to complete hysterectomy.
Device: Vnotes surgery using traditional surgical instruments
Vnotes surgery using traditional surgical instruments

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Success rate of access platform establishment
Time Frame: End of surgery
Success is defined as opening the vaginal vault and entering the abdominal cavity to create stable abdominal pressure
End of surgery

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Tightness of equipment
Time Frame: End of surgery
Throughout the operation, whether the device can remain airtight
End of surgery
Stability of equipment
Time Frame: End of surgery
Throughout the operation, whether the equipment is tilted or slipped
End of surgery
Controllability of equipment
Time Frame: End of surgery
Throughout the operation, whether the equipment can be smoothly inserted, extended, conformed, and advanced
End of surgery
Time of establishment of the access platform
Time Frame: End of surgery
The time from the start of the procedure to the establishment of vaginal access
End of surgery
Total time of surgery
Time Frame: End of surgery
The time from the beginning of the procedure to its complete completion
End of surgery
Total surgical bleeding volume
Time Frame: End of surgery
Total blood loss from the beginning to the end of the procedure
End of surgery
The amount of bleeding during the process of establishing the platform
Time Frame: End of surgery
The amount of bleeding from the beginning of surgery until the establishment of vaginal access
End of surgery
Surgical complications
Time Frame: 6 months after surgery
Whether there was fever, infection and organ damage after operation
6 months after surgery
Pain VAS score
Time Frame: 6 months after surgery
Pain scores during postoperative hospital stay and follow-up（The Visual Analogue Scale (VAS) is a widely used method for pain assessment. 0 represents "no pain" and 10 represents "most severe pain".）
6 months after surgery
The Patients' life quality postoperative
Time Frame: 6 months after surgery
The Patients' life quality postoperative be measured by Questionnaire.
6 months after surgery
Length of hospital stay
Time Frame: 6 months after surgery
The time from admission to discharge
6 months after surgery
Heart rate during surgery
Time Frame: End of surgery
The magnitude of the change in the surgical center rate
End of surgery
blood pressure during surgery
Time Frame: End of surgery
The magnitude of the change in blood pressure during surgery
End of surgery

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
China-Japan Friendship Hospital

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Jing Liang, MD, China-Japan Friendship Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 1, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 31, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 1, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 10, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 24, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 26, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 25, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 10, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2024

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • NTCS-vnotesLH

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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