UROtainer for Bladder Catheter Maintenance, Infection Prevention and Quality of Life (UROBIQ)

Study of Uro-Tainer® Polihexanide and Uro-Tainer® With Citric Acid on Catheter Blockage, Infection Prevention, Cost-effectiveness and Quality of Life (UROBIQ): a Prospective Randomized Single-blinded Clinical Study

The purpose of the current study is to investigate whether catheter flushing with Uro-Tainer® with citric acid and Uro-Tainer® Polihexanide can: Reduce catheter changes due to incrustation and blockage.

In addition, a list of secondary aims inclusive of cost-effectiveness analysis in collaboration with the Centre for Innovative Medical Technology (CIMT) at OUH.

Study Overview

• Status: Enrolling by invitation
• Conditions: Catheter Blockage
• Intervention / Treatment: Device: UroTainer®; Device: Saline

Detailed Description

The purpose of the current study is to investigate whether catheter flushing with Uro-Tainer® with citric acid and Uro-Tainer® Polihexanide can: Reduce catheter changes due to incrustation and blockage.

In addition, a list of secondary aims inclusive of cost-effectiveness analysis in collaboration with the Centre for Innovative Medical Technology (CIMT) at OUH.

There is a need for a randomised study to justify if Uro-Tainer® flushing will have an advantage over the cheaper and normally used Saline flushing.

Standard therapies vary depending on the blockage type and severity. Saline Solution can be used daily for a shorter period and 1-2 times a week for long-term catheter maintenance.

Study:

• Uro-Tainer® Polihexanide two weekly rinses compared to two weekly rinses with saline for 3 months.
• Uro-Tainer® with citric acid: Two weekly rinses compared to two weekly rinses with saline for 3 months.

Clinical benefits:

• Less catheter blockage -> less need for catheter replacement outside the regular schedule -> Fewer infections and better QoL
• It is expected that cost-effectiveness analysis will show a better economic outcome for the society
• No unknown adverse effects are expected
• The risk of participation in this study is very small compared to the expected effect of fewer catheter replacements, fewer infections and better QoL which justifies the selection of clinical endpoints.

• Study Type: Interventional
• Enrollment (Estimated): 70
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Denmark
  • Odense, Denmark, 5000
    • Odense University Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

Citizen not previously flushed

• A permanent catheter (suprapubic and urethral)
• Male and female > 18 years of age
• Acute or previous catheter stop because of blocking or incrustations.
• The pilot project does not include clogging due to incrustations
• Voluntary consent to participate in the study, following a full explanation of the nature and purpose of the study, by signing the informed consent form approved by the Ethics Committee (EC) before all evaluations.

Citizen previously flushed with NaCl or UroTainer®

• A permanent catheter (suprapubic and urethral)
• Male and female > 18 years of age
• Willingness to take a rinse break for a minimum of 4 weeks. In the event of 2 catheter stops during the flushing break, assessed on the basis of an urgent need for catheter flushing with NaCl or catheter change, the citizen can be included.
• The pilot project does not include clogging due to incrustations
• If there is no catheter stop during the rinsing break, the citizen will continue without rinsing until a possible catheter stop.
• Voluntary consent to participate in the study, following a full explanation of the nature and purpose of the study, by signing the informed consent form approved by the Ethics Committee (EC) before all evaluations.

Exclusion Criteria:

• Urothelial cancer
• Bladder and kidney stones requiring treatment
• Age < 18 years of age
• Pregnant and / or breastfeeding women
• Not able to understand Danish
• Dementia, where relatives can / will not give consent
• Simultaneous participation in another interventional clinical trial (drugs or medical devices studies)

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Uro-Tainer® catheter flushing; Uro-Tainer® catheter flushing two times weekly for 3 months.	Device: UroTainer®; Clinical effect of preventive treatment - catheter flushing with UroTainer®
Placebo Comparator: Saline catheter flushing; Saline solution catheter flushing two times weekly for 3 months.	Device: Saline; Clinical effect of preventive treatment - catheter flushing with saline solution

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of catheter changes during the treatment and follow-up period.	Number of catheter changes	1 year

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Urine culture	Urine culture performed if UTI is suspected	1 year
Odour	Odour nuisance is to be assessed on a 5-point scale. A high score is a worse outcome.; No odour; Discreet odour nuisance after catheter care; Odour that is noticed once in a while. Noticed by the participant and relatives; Odour that is present all the time around the participant; Solid odour that is felt in all rooms. "It hangs" on the participant	1 year
Quality of life by SF-36	SF-36 (Health Survey Short Form 36) The SF-36 consists of 36 items - that are grouped into 8 subscales or domains: Physical functioning (10 items); Role limitations due to physical health (4 items); Role limitations due to emotional problems (4 items); Energy/fatigue; Emotional well-being; Social functioning (2 items); Pain (2 items); General health. Aggregate scores for each domain range from 0 to 100, compiled as a percentage - where the higher the score, the more favourable the health state.	1 year
Quality of life by ICIQ-LTCqol	Living with a long term catheter (ICIQ-LTCqol 12/12 ) The questionnaire consists of three scales yielding two summary measures catheter function and concern score, lifestyle impact and unscored items. Possible scores range from 1 to 530, with lower scores representing better catheter function, concern score and life impact.	1 year
Cost effectiveness analyses 1	Costs of used catheters in DDK pr participant	1 year
Cost effectiveness analyses 2	Costs of used solutions for the maintenance of indwelling urethral and suprapubic catheters in DKK pr participant	1 year
Cost effectiveness analyses 3	Costs of used time of the health care professionals used for catheter maintenance and control in primary care in DKK pr participant	1 year
UTI events (Urinary tract infection event)	The number of prescriptions	1 year

Collaborators and Investigators

• Sponsor: Odense University Hospital
• Investigators: Principal Investigator: Karin Andersen, University of Southern Denmark

Study record dates

Study Major Dates

• Study Start (Actual): May 1, 2022
• Primary Completion (Estimated): January 1, 2027
• Study Completion (Estimated): January 1, 2028

Study Registration Dates

• First Submitted: December 17, 2022
• First Submitted That Met QC Criteria: March 7, 2023
• First Posted (Actual): March 20, 2023

Study Record Updates

• Last Update Posted (Estimated): September 18, 2025
• Last Update Submitted That Met QC Criteria: September 14, 2025
• Last Verified: September 1, 2025

More Information

Terms related to this study

• Keywords: prophylactic; Catheter maintenance; UroTainer; catheter flushing
• Other Study ID Numbers: UROBIQ

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No