NCT03924362

Brief Summary

The purpose of this study is to determine the effective regimen for definitive surgical therapy of bilateral kidney stones. It is unknown whether patients who undergo simultaneous bilateral percutaneous nephrolithotomy (PCNL) experience improved post-operative outcomes compared to patients who have staged unilateral procedures.

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
92

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Sep 2019

Longer than P75 for not_applicable

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 26, 2019

Completed
28 days until next milestone

First Posted

Study publicly available on registry

April 23, 2019

Completed
5 months until next milestone

Study Start

First participant enrolled

September 30, 2019

Completed
4.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2023

Completed
Last Updated

May 17, 2022

Status Verified

May 1, 2022

Enrollment Period

4.3 years

First QC Date

March 26, 2019

Last Update Submit

May 16, 2022

Conditions

Outcome Measures

Primary Outcomes (2)

  • Stone Free Rates Measured using Chi-Square analysis.

    Rate of clearance of kidney stones following the procedure.

    3 months.

  • Number of Participants with Repeat procedures

    Number of Participants requiring repeat surgical procedures for residual stones following initial treatment.

    3 months.

Secondary Outcomes (3)

  • Length of hospital stay

    3 months.

  • Number of Participants with Complications

    3 months.

  • Patient Quality of Life

    3 months.

Study Arms (2)

Simultaneous Bilateral PCNL

ACTIVE COMPARATOR

Patients undergo simultaneous bilateral PCNL.

Procedure: PCNL

Unilateral PCNL

ACTIVE COMPARATOR

Patients undergoing unilateral staged PCNL.

Procedure: PCNL

Interventions

PCNLPROCEDURE

Percutaneous Nephrolithotomy is a means of treating large kidney stone burdens.

Simultaneous Bilateral PCNLUnilateral PCNL

Eligibility Criteria

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

You may qualify if:

  • Age \>18 years
  • Any patient with bilateral stone burden eligible and appropriate for PCNL procedure
  • Medically fit for definitive surgical management of stone.

You may not qualify if:

  • Patients with any of the following characteristics will not be eligible for the present study:
  • Those with medical comorbidities preventing them from safely undergoing definitive surgical therapy.
  • Patients who are unable to provide informed consent.
  • Patients who are planned for alternative procedures (ureteroscopy, extracorporeal shock wave lithotripsy)
  • Anyone who is unable to give their informed consent
  • Anyone under the age of 19
  • Anyone who, in the opinion of the PI, is unfit or unsuitable to participate in the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of British Columbia

Vancouver, British Columbia, V5Z1M9, Canada

RECRUITING

Related Publications (6)

  • Assimos D, Krambeck A, Miller NL, Monga M, Murad MH, Nelson CP, Pace KT, Pais VM Jr, Pearle MS, Preminger GM, Razvi H, Shah O, Matlaga BR. Surgical Management of Stones: American Urological Association/Endourological Society Guideline, PART II. J Urol. 2016 Oct;196(4):1161-9. doi: 10.1016/j.juro.2016.05.091. Epub 2016 May 27.

    PMID: 27238615BACKGROUND
  • Jones P, Dhliwayo B, Rai BP, Mokete M, Amitharaj R, Aboumarzouk OM, Somani BK. Safety, Feasibility, and Efficacy of Bilateral Synchronous Percutaneous Nephrolithotomy for Bilateral Stone Disease: Evidence from a Systematic Review. J Endourol. 2017 Apr;31(4):334-340. doi: 10.1089/end.2016.0851. Epub 2017 Mar 22.

    PMID: 28326800BACKGROUND
  • Kang SK, Cho KS, Kang DH, Jung HD, Kwon JK, Lee JY. Systematic review and meta-analysis to compare success rates of retrograde intrarenal surgery versus percutaneous nephrolithotomy for renal stones >2 cm: An update. Medicine (Baltimore). 2017 Dec;96(49):e9119. doi: 10.1097/MD.0000000000009119.

    PMID: 29245347BACKGROUND
  • Penniston KL, Antonelli JA, Viprakasit DP, Averch TD, Sivalingam S, Sur RL, Pais VM Jr, Chew BH, Bird VG, Nakada SY. Validation and Reliability of the Wisconsin Stone Quality of Life Questionnaire. J Urol. 2017 May;197(5):1280-1288. doi: 10.1016/j.juro.2016.11.097. Epub 2016 Nov 23.

    PMID: 27889419BACKGROUND
  • Silverstein AD, Terranova SA, Auge BK, Weizer AZ, Delvecchio FC, Pietrow PK, Munver R, Albala DM, Preminger GM. Bilateral renal calculi: assessment of staged v synchronous percutaneous nephrolithotomy. J Endourol. 2004 Mar;18(2):145-51. doi: 10.1089/089277904322959770.

    PMID: 15072621BACKGROUND
  • Wang CJ, Chang CH, Huang SW. Simultaneous bilateral tubeless percutaneous nephrolithotomy of staghorn stones: a prospective randomized controlled study. Urol Res. 2011 Aug;39(4):289-94. doi: 10.1007/s00240-010-0342-x. Epub 2010 Dec 16.

    PMID: 21161650BACKGROUND

Study Officials

  • Ben Chew, MD

    University of British Columbia, Associate Professor

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Patients will be managed either with simultaneous bilateral procedures or staged unilateral procedures based on surgeon's routine practice pattern. Additional surgical interventional will be dependent on initial patient stone-free outcomes.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

March 26, 2019

First Posted

April 23, 2019

Study Start

September 30, 2019

Primary Completion

December 31, 2023

Study Completion

December 31, 2023

Last Updated

May 17, 2022

Record last verified: 2022-05

Data Sharing

IPD Sharing
Will not share

The University of British Columbia is the main site of the study, therefore all data will be transferred from the subsites to the University of British Columbia, and no transfer of data to the subsites. Any data transfer will be de-identified.

Locations