LithoVue Single Use Disposable Ureteroscope

May 16, 2022 updated by: Ben Chew, MD, University of British Columbia

Prospective Trial of a Reusable Digital Flexible Ureteroscope vs a Single-Use Flexible Ureteroscope in the Treatment of Urolithiasis: An EDGE Consortium Clinical Trial

Most flexible ureteroscopes that are used to treat kidney stones have been reusable. Recently, advances in technology have resulted in single-use (disposable) ureteroscopes to become available. The investigators are interested in determining if the performance of the two types of scopes are equivalent. This will help guide institutions in the future to purchase the best scopes for their patients.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not 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

Ureteroscopy is commonly used in the treatment of kidney stones. Flexible ureteroscopes are costly to purchase and repair. Issues with flexible ureteroscopes include loss of deflection and visual performance (fiberoptic pixels) with use and the high repair costs. Reprocessing and sterilization of reusable ureteroscopes also requires staff who are specially trained and dedicated in this area. Inadequate sterilization could also lead to transmissible infections between patients. A single-use flexible digital ureteroscope has recently become commercially available (LithoVue, Boston Scientific, Marlborough, MA). Pre-clinical testing show the accessibility to the ureter and all areas of the kidney to be equivalent to current flexible ureteroscopes. However, clinical data comparing this single-use ureteroscope to a current state of the art reusable ureteroscope is lacking. Establishing at least equivalence in performance between the new single use ureteroscope and a reusable digital ureteroscope will help surgeons and operating room managers/administrators help determine how to most efficiently equip their operating rooms with endoscopic equipment.

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 (Anticipated)

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.
40

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 Locations

  • Canada
    • British Columbia
      • Vancouver, British Columbia, Canada, V5Z 1M9
        • University of British Columbia
  • United States
    • Ohio
      • Columbus, Ohio, United States, 43212
        • Eye and Ear Institute - Department of Urology

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

19 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • patients scheduled for ureteroscopy and laser lithotripsy for individual renal stones ranging in size from 5 mm to 20 mm in all intrarenal locations (If there are multiple stones present, the total stone burden in cross section should not exceed 20 mm)
  • 19 years or older and able to provide informed consent

Exclusion Criteria:

  • patients < 18 years
  • pregnant
  • patients with known nephrocalcinosis .
  • any other reason that in the opinion of the investigator would make the participant unsuitable for enrollment in the study.

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: None (Open Label)

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.
Active Comparator: Reusable Ureteroscope
Standard ureteroscope.
Device: Reusable Ureteroscope
Comparative device.
Experimental: single-use flexible digital ureteroscope (LithoVue)
Disposable ureteroscope being tested.
Device: single-use flexible digital ureteroscope
Device being tested.
Other Names:
  • LithoVue

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
Stone-free status
Time Frame: 6-10 weeks
Overall kidney stone burden that remains post ureteroscopy (if any)
6-10 weeks

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
Case completion with one scope
Time Frame: Day of procedure
Was the operation able to be completed with a single scope (did the scope break and/or did another one have to be used)
Day of procedure
Scope optics (visual quality of the image provided by the scope)
Time Frame: Day of procedure
At the start and end of each procedure the surgeon will take a video clip of the intrarenal collecting system - these clips will then be evaluated and scored by blinded urologists.They will use a 5 point Likert scale that will evaluate the quality of the image in multiple categories from poor (1) to excellent (5) in multiple categories. Categories include: Focus/Sharpness, Exposure, Color Accuracy, and Overall Image Quality.
Day of procedure
Maintenance and Repair
Time Frame: Through study completion, an average of 8 months
number of cases until repair (reusable scope),
Through study completion, an average of 8 months
Secondary procedures and/or unanticipated clinical events
Time Frame: 4-6 weeks post operatively
Includes adjuvant procedures and unscheduled hospital visits
4-6 weeks post operatively

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.
University of British Columbia

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Boston Scientific Corporation

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: Ben H Chew, MD, University of British Columbia, Associate Professor

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 (Actual)

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.
December 1, 2017

Primary Completion (Anticipated)

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 30, 2023

Study Completion (Anticipated)

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.
December 30, 2023

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).
January 8, 2018

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.
January 25, 2018

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.
February 1, 2018

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.
May 17, 2022

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.
May 16, 2022

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.
May 1, 2022

More Information

Terms related to this study

Keywords

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.
  • H16-02436

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

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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