Skip to content

LATITUDE An Observational Study of Patient Choice and the Urethral Bulking Agent, Bulkamid®

Latitude-An Observational Study of Patient Choice and the Urethral Bulking Agent, Bulkamid®, Used for the First Line Treatment for Stress Urinary Incontinence and the Impact on a Subsequent Mid Urethral Sling

Status
UNKNOWN
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03474653
Enrollment
399
Registered
2018-03-22
Start date
2017-06-12
Completion date
2024-06-30
Last updated
2023-04-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Stress Urinary Incontinence, Urinary Incontinence

Keywords

Stress urinary incontinence, Bulking, Bulkamid

Brief summary

Latitude is an observational study exploring how effective Bulkamid ® is as a first line treatment for women with stress urinary incontinence. Women who choose to have Bulkamid as part of their standard clinical care will be asked to complete questionnaires before and after their surgery so that we can assess how their urinary symptoms change. As a second part of the study, we are asking all patients having any first line treatment for stress incontinence to complete a short questionnaire telling us how they decided what treatment to have. A small number of these women will be contacted via telephone and asked whether they would mind being interviewed to tell us more about this. We will also interview a number of doctors taking part in Latitude to find out how they counsel patients about different treatment options for stress urinary incontinence.

Detailed description

This is a multi-centre observational study to investigate the effectiveness of the urethral bulking agent, Bulkamid®, as a primary treatment for stress urinary incontinence (SUI). It also contains an embedded qualitative sub-study to investigate factors that influence patient choice of surgical treatment for SUI. Bulkamid® is a non-toxic hydrogel that is injected under the lining of the urethra. It increases the urethral 'bulk', hence increasing resistance against leakage of urine. It is being increasingly offered as a primary treatment for SUI due to the reduced associated risks, ability to administer in the outpatient setting and recent controversy surrounding polypropylene mesh. However, there is currently limited data on how effective it is as a first line treatment, both in the short and long term, and what effect it may have on secondary continence procedures. This study aims to collect data from 220 women who choose Bulkamid® as their primary treatment over a total of 60 months to review its effectiveness. Telephone consultations will take place at regular intervals using validated questionnaires to assess SUI symptoms. It is not known how easy women find it to choose between the surgical treatment options for SUI, what factors they weigh up or what information would help them make this decision. The embedded qualitative study of patient choice will use a combination of questionnaire and 2 in-depth semi structured interviews to investigate this further. Consultant Urogynaecologists will also be interviewed to compare factors they think are important to their patients' treatment decision with what is expressed by women with SUI. The overall aim is to develop a prototype decision aid to better support women when making this treatment decision.

Interventions

None listed

Sponsors

Contura
CollaboratorINDUSTRY
Manchester University NHS Foundation Trust
Lead SponsorOTHER_GOV

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* All women with urodynamic stress incontinence that are eligible for surgery for SUI. * Evidence of previous supervised pelvic floor muscle training

Exclusion criteria

* OAB (overactive bladder) predominant mixed incontinence * Any previous surgery for urinary incontinence * Concomitant prolapse surgery * Detrusor over activity on urodynamics * Residual urine \> 100ml at urodynamics * Bladder capacity \< 300 ml * An acute urinary tract infection (UTI) * An allergic reaction to the local anaesthesia used in the treating unit * An allergic reaction to all the antibiotics which could be used for prophylaxis * Current treatment with systemic corticosteroids * Pregnancy * Active autoimmune or connective tissue diseases * Not fluent in English requiring an independent interpreter

Design outcomes

Primary

MeasureTime frameDescription
PGI-S12 months post BulkamidThe primary outcome will be the score of PGI-S of patients 12 months after Bulkamid® or the last PGI-S recorded for those who have gone on to have a second injection of Bulkamid® or MUS.

Secondary

MeasureTime frameDescription
Complications post Bulkamid6, 12, 24 and 60 monthsNumber of women who started taking drugs for OAB after surgery Number of women with recurrent UTI (defined as 2 UTIs in 6 months); Number of women performing clean intermittent self-catheterisation (CISC).
PGI-I; a single question with a 7-item response.6, 12, 24 and 60 monthsPatient Global Impressions of Improvement validated questionnaire Number of women with recurrent UTI (defined as 2 UTIs in 6 months); Number of women performing clean intermittent self-catheterisation (CISC).
PGI-S; a single question with a 4-item response.6, 12, 24 and 60 monthsPatient Global Impressions of Severity validated questionnaire Number of women with recurrent UTI (defined as 2 UTIs in 6 months); Number of women performing clean intermittent self-catheterisation (CISC).
ICIQ-SF6, 12, 24 and 60 monthsInternational Consultation on Incontinence Questionnaire - Short Form ICIQ-SF; a short 4 question
Post Bulking MUS rate6, 12, 24 and 60 monthsThe number of women who go to have a MUS
Pads used due to leakage6, 12, 24 and 60 monthsNumber of women still using pads due to leakage question
Pads used due to fear of leakage.6, 12, 24 and 60 monthsNumber of women still using pads due to fear of leakage question
EQ-5D6, 12, 24 and 60 monthsEQ-5D is a standardised measure of health status developed by the EuroQol Group in order to provide a simple, generic measure of health for clinical and economic appraisal
Electronic Patient Questionnaire6, 12, 24 and 60 monthsePAQ incontinence domains (Pain; Voiding; OAB; SUI; QoL).

Countries

United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026