NCT03419091

Brief Summary

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.

Trial Health

47
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Dec 2017

Longer than P75 for not_applicable

Geographic Reach
2 countries

2 active sites

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2017

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

January 8, 2018

Completed
24 days until next milestone

First Posted

Study publicly available on registry

February 1, 2018

Completed
5.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 30, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2023

Completed
Last Updated

May 17, 2022

Status Verified

May 1, 2022

Enrollment Period

6.1 years

First QC Date

January 8, 2018

Last Update Submit

May 16, 2022

Conditions

Keywords

ureteroscopylithovuenephrolithiasissingle use ureteroscope

Outcome Measures

Primary Outcomes (1)

  • Stone-free status

    Overall kidney stone burden that remains post ureteroscopy (if any)

    6-10 weeks

Secondary Outcomes (4)

  • Case completion with one scope

    Day of procedure

  • Scope optics (visual quality of the image provided by the scope)

    Day of procedure

  • Maintenance and Repair

    Through study completion, an average of 8 months

  • Secondary procedures and/or unanticipated clinical events

    4-6 weeks post operatively

Study Arms (2)

Reusable Ureteroscope

ACTIVE COMPARATOR

Standard ureteroscope.

Device: Reusable Ureteroscope

single-use flexible digital ureteroscope (LithoVue)

EXPERIMENTAL

Disposable ureteroscope being tested.

Device: single-use flexible digital ureteroscope

Interventions

Device being tested.

Also known as: LithoVue
single-use flexible digital ureteroscope (LithoVue)

Comparative device.

Reusable Ureteroscope

Eligibility Criteria

Age19 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • 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)
  • years or older and able to provide informed consent

You may not qualify if:

  • 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.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Eye and Ear Institute - Department of Urology

Columbus, Ohio, 43212, United States

Location

University of British Columbia

Vancouver, British Columbia, V5Z 1M9, Canada

Location

MeSH Terms

Conditions

Kidney CalculiNephrolithiasis

Condition Hierarchy (Ancestors)

Kidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesUrolithiasisUrinary CalculiMale Urogenital DiseasesCalculiPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Study Officials

  • Ben H Chew, MD

    University of British Columbia, Associate Professor

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: This will be a prospective, randomized clinical trial. Patients will be randomized 1:1 in randomization blocks of 4 to undergo the procedure with either the LithoVue single use flexible ureteroscope or the digital reusable flexible ureteroscope. Ureteroscopy will be performed using a standardized technique.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor of Urology

Study Record Dates

First Submitted

January 8, 2018

First Posted

February 1, 2018

Study Start

December 1, 2017

Primary Completion

December 30, 2023

Study Completion

December 30, 2023

Last Updated

May 17, 2022

Record last verified: 2022-05

Locations