NCT05329883

Brief Summary

The MINUS-trial is a multicentric prospective observational study in which consecutive patients, 18 years of age and older who receive a ureteral stent during any endoscopic procedure will be approached to participate. Their stent will be removed in outpatient office or by string extraction at home with or without antibiotic prophylaxis (depending on the standard of care of the participating center). A urine sample will be taken before stent removal and patients will be asked to complete a questionnaire to assess symptoms of urinary tract infection (UTI) after stent removal. If the patient experiences symptoms of UTI (urgency, frequency, dysuria or haematuria) that exceed the usually experienced post-cystoscopy symptoms, they have to provide a urine sample. The purpose of this study is to provide multi-institutional, multinational, observational data on the incidence of UTI after stent removal with or without antibiotic prophylaxis in the outpatient setting in patients with a sterile urine culture prior to the intervention of stent placement and no demonstrated infection during the stent has been in situ. The primary outcome is the presence of a febrile or non-febrile urinary tract infection after stent removal. Secondary objectives are to identify risk factors for post-stent removal UTI and identify differences in UTI incidence between cystoscopic stent removal in the outpatient setting versus string-removal by the patient in the home environment.

Trial Health

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Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
1,000

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Nov 2021

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

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

Study Start

First participant enrolled

November 25, 2021

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

March 25, 2022

Completed
21 days until next milestone

First Posted

Study publicly available on registry

April 15, 2022

Completed
3.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

January 15, 2025

Status Verified

January 1, 2025

Enrollment Period

4.1 years

First QC Date

March 25, 2022

Last Update Submit

January 13, 2025

Conditions

Keywords

Urinary Tract InfectionUreteral stent removalDouble-J stentUreterorenoscopyPercutaneous NephrolithotomyEndourology

Outcome Measures

Primary Outcomes (1)

  • number of participants demonstrating a post-stent removal urinary tract infection

    For this outcome measure, a urinary tract infection is defined as a urine sample demonstrating an identified uropathogen with at least 10.000 colony forming units in a patient demonstrating symptoms of a urinary tract infection after removal of a ureteral stent. Asymptomatic bacteriuria will not be considered a positive outcome.

    30 days after removal

Interventions

Outpatient ureteral stent removal without antibiotic prophylaxis

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Consecutive patients, 18 years of age and older who receive a ureteral stent during any endoscopic procedure will be approached to participate in the study

You may qualify if:

  • Patient aged 18 years or above
  • Stent placed during endoscopic procedure
  • A negative urine culture (UC) pre-operatively with a single dose of antibiotic prophylaxis peri-operatively
  • Stent removal is planned in outpatient setting of by the patient by using a string.
  • Able and willing to provide consent

You may not qualify if:

  • Permanent indwelling catheter (transurethral catheter, suprapubic catheter, nephrostomy tubes)
  • Pregnant patients
  • Patient performing clean intermittent (self-)catheterization
  • Recent history (\<3 months) of demonstrated UTI

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Hospital Ghent

Ghent, Eastern-Flanders, 9000, Belgium

RECRUITING

MeSH Terms

Conditions

Urinary Tract Infections

Condition Hierarchy (Ancestors)

InfectionsUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital Diseases

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
6 Weeks
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 25, 2022

First Posted

April 15, 2022

Study Start

November 25, 2021

Primary Completion

December 31, 2025

Study Completion

December 31, 2025

Last Updated

January 15, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will not share

Locations