NCT03207659

Brief Summary

The investigator aims to perform a prospective and randomized controlled trial comparing the safety and efficacy of active basket extraction of fragments and stone dusting during the RIRS.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
136

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Aug 2017

Geographic Reach
1 country

1 active site

Status
unknown

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 24, 2017

Completed
11 days until next milestone

First Posted

Study publicly available on registry

July 5, 2017

Completed
27 days until next milestone

Study Start

First participant enrolled

August 1, 2017

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2018

Completed
Last Updated

August 7, 2018

Status Verified

August 1, 2018

Enrollment Period

1.3 years

First QC Date

June 24, 2017

Last Update Submit

August 5, 2018

Conditions

Keywords

RIRSRenal stonesEfficacySafety

Outcome Measures

Primary Outcomes (1)

  • Stone free rate (SFR)

    To assess for stone-free rate using K.U.B. (kidney-ureter-bladder) plain radiograph and renal ultrasound. If there is a discrepancy in follow up imaging between the presence of residual stones or fragments between the KUB and renal ultrasound, the KUB will be considered the reference standard for small fragments less than 4mm unless the stone composition is uric acid. If fragments 5 mm or larger exist or uric acid it will be up to the discretion of the surgeon to order a CT to better delineate the presence of residual stones and their impact on the clinical management of that patient.

    4-6 weeks after surgery

Secondary Outcomes (2)

  • Operating time

    intraoperatively

  • Complication rates

    intraoperatively or 48h postoperatively

Study Arms (2)

Dusting

EXPERIMENTAL

small stones will be left to pass spontaneously.

Procedure: Dusting in RIRS

Basketing

EXPERIMENTAL

stones will be actively extracted.

Procedure: Basketing in RIRS

Interventions

Treament of renal stones by fragmentation of stone under direct vision through a flexible ureteroscope and then actively extracting them using a basket

Basketing

Treament of renal stones by dusting the stone under direct vision through a scope and then leaving them to pass spontaneously

Dusting

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients must be a suitable operative candidate for RIRS
  • Age ≥18 years
  • Normal renal function
  • ASA score Ⅰ and Ⅱ
  • Single renal stone ≤20mm or multiple stones the conglomerate diameter (additive maximal diameter of all stones on axial imaging of computed tomography) up to 20 mm

You may not qualify if:

  • Pregnant subjects
  • Uncorrected coagulopathy and active urinary tract infection (UTI)
  • prior ipsilateral endourological procedure history, such as RIRS, PCNL, URS and URL
  • Patients who underwent transplant or urinary diversion.
  • Congenital abnormalities.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Urology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University

Guangzhou, Guangdong, 510230, China

RECRUITING

MeSH Terms

Conditions

UrolithiasisNephrolithiasis

Interventions

Dust

Condition Hierarchy (Ancestors)

Urologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesKidney Diseases

Intervention Hierarchy (Ancestors)

Particulate MatterComplex Mixtures

Study Officials

  • Guohua Zeng, PH.D & MD

    The First Affiliated Hospital of Guangzhou Medical University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Guohua Zeng, Ph.D and M.D.

CONTACT

Chao Cai, PH.D & MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Vice president

Study Record Dates

First Submitted

June 24, 2017

First Posted

July 5, 2017

Study Start

August 1, 2017

Primary Completion

December 1, 2018

Study Completion

December 1, 2018

Last Updated

August 7, 2018

Record last verified: 2018-08

Data Sharing

IPD Sharing
Will not share

Locations