Peri-urethral Bulk Agent Injection of Bulkamid® (BULKIU)

December 13, 2025 updated by: Hospices Civils de Lyon

Evolution of Symptoms After Peri-urethral Bulk Agent Injection of Bulkamid® for Urinary Incontinence

There are currently different treatment options in the management of stress urinary incontinence according to the latest recommendations. Suburethral slings are currently considered the first surgical option due to an excellent cure rate of around 90%. Nevertheless, due to a risk of prosthetic complications and numerous current controversies over the placement of synthetic tissue, other therapeutic alternatives must be offered to patients.

Peri-urethral bulk agent injections have been used since 2006 in urinary incontinence and should be integrated into the therapeutic arsenal. This is a minimally invasive technique performed under local anesthesia on an outpatient basis. The mechanism of action is explained by better coaptation of the urethra and increased resistance to urine flow during the bladder filling phase. It also increases the strength of the striated sphincter thanks to a better arrangement of muscle fibers.

According to the European Association of Urology (EAU), the use of bulk agents is recommended for the management of urinary incontinence in elderly and/or frail patients whose comorbidities contraindicate surgical management. These peri-urethral injections can also be offered to patients with incontinence due to sphincter deficiency but also to young women with stress urinary incontinence who are ready to accept a partial improvement in their incontinence. The personal choice of the patient is currently a decisive factor for the implementation of a treatment for functional disorders and in particular for urinary incontinence.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

70

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • France
      • Bron, France, 69500
        • Service de Gynécologie, HFME, Hospices Civils de Lyon

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

This study concerns all patients who received a first peri-uthral injection of Bulkamid® in the context of urinary incontinence between September 2020 and November 2022.

Description

  • Inclusion Criteria :

    • women over 18
    • patients who received a first peri-urethral injection of Bulkamid® in the context of urinary incontinence
    • intervention between September 2020 and November 2022
    • person having expressed his non-opposition

  • Exclusion Criteria :

    • inability to understand the information given
    • person deprived of liberty
    • person under guardianship

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
peri-urethral bulk agent injection of Bulkamid® for urinary incontinence
patients who received a first injection of Bulkamid® in the context of urinary incontinence
Procedure: Evolution of symptoms
percentage of patients with improvement in their symptoms

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Evolution of symptoms
Time Frame: at 7 days after surgery
percentage of patients with improvement in their symptoms on the PGI-I scale (score 1, 2, or 3)
at 7 days after surgery

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Hospices Civils de Lyon

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

October 1, 2022

Primary Completion (Actual)

November 30, 2022

Study Completion (Actual)

December 31, 2022

Study Registration Dates

First Submitted

February 14, 2023

First Submitted That Met QC Criteria

February 14, 2023

First Posted (Actual)

February 23, 2023

Study Record Updates

Last Update Posted (Actual)

December 19, 2025

Last Update Submitted That Met QC Criteria

December 13, 2025

Last Verified

December 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 22-5093
  • 69HCL22_1157 (Other Identifier: HCL)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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