NCT04902755

Brief Summary

Lower urinary tract symptoms (LUTS) are frequent in worldwide population. In neurogenic condition, LUTS can occur from beginning of neurologic disease (SCI, MS) or during its progression (MS). Neurogenic bladder may be responsible for upper urinary tract complications such as urinary tract infection or renal failure. It can also decrease quality of life and have an important socio-economic impact. For the last few years, patient-reported outcomes (PRO) have been the main way to assess functional urinary symptoms such as urinary incontinence or overactive bladder. Fortunately, Welk and al. developed and validated a new questionnaire in 2013 to allow a multimodal evaluation of LUTS specifically designed for a neurogenic population. The Neurogenic Bladder Symptom Score (NBSS) is composed of 24 items and explores 3 domains (urinary incontinence, bladder storage and voiding, consequences). In addition, NBSS includes two additional questions related to bladder management and quality of life. In 2020, Welk and al. developed a short version of NBSS (NBSS-SF), composed of 10 items exploring the 3 same domains as the NBSS original long version. However, there is no French-validated multi-dimensional questionnaire specifically assessing neurogenic LUTS, the USP questionnaire being a generic tool (Urinary Symptoms Profile (USP)). The objective of our study was to validate the French linguistic version and the cross-cultural adaptation of the NBSS-SF. METHODS: The investigators conducted a prospective monocentric study between June and October 2020 in our neuro-urology clinic. Step 1, translation and back-translation: With the author's agreement, two bilingual translators (fluent in English and native French) created a French version of the NBSS. Both versions were combined and disagreement in wording or item redaction were resolved to maintain a better understanding. Next step was the back-translation with an native English translator. Then, a bilingual expert committee, composed by urologists and neuro-urologists, compared the different versions to create a pre-final version of the questionnaire. Cross-cultural equivalence with analysis of the semantic, idiomatic, conceptual, and empirical equivalence of the source and pre-final versions of the NBSS-Short Form have been validated by the expert committee. Step 2, Pilot study : n = 30 subjects. During this pilot study, acceptability and understanding were evaluated. Participant had to answer with a 3 level Likert scale (A: perfectly; B: good; C: poor) for each item. Comprehension and acceptation were considered as good if they answered A or B. All difficulties and remarks were collected to incorporate these comments in the final version after validation by a panel of experts. Step 3, Validation stud: To perform validation study, the investigators used the same inclusion criteria than Welk and al. and included patients with a neurogenic bladder due to multiple sclerosis (MS), spinal cord injury (SCI) or other neurologic condition such as spina bifida or Parkinson disease. Validation study was performed to determine the psychometric properties of the questionnaire. The investigators calculated the Cronbach's α coefficient, a measure of internal consistency (reliability) ranging from 0-1, with a coefficient greater than 0.7 considered as very good. The NBSS-short form is composed of 2 first items (covering quality of life and bladder management) and 8 items covering 3 subdomains (items 3, 4, 5 for urinary incontinence, items 6, 7, 8 for storage and voiding) and finally 2 items covering the consequences. The investigators calculated a Cronbach's α coefficient for each subscale and a coefficient for the whole questionnaire. For test-retest reliability, the intraclass correlation coefficient (ICC) has been used. An ICC greater than 0.7 is considered as a good test-retest reproducibility. Participants completed the final version of the questionnaire and they had to mail the second questionnaire within 7 to 14 days. As this second questionnaire was completed at home, all participants were called to avoid missing data. Correlations were computed between NBSS-SF scores obtained overall and for each domain on two different occasions, separated by a 7-14-day interval.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
105

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jun 2020

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

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

Study Start

First participant enrolled

June 1, 2020

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 30, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 30, 2020

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

May 20, 2021

Completed
6 days until next milestone

First Posted

Study publicly available on registry

May 26, 2021

Completed
Last Updated

May 26, 2021

Status Verified

May 1, 2021

Enrollment Period

5 months

First QC Date

May 20, 2021

Last Update Submit

May 21, 2021

Conditions

Keywords

QuestionnaireNeurogenic bladdermultidimensionnalLUTS

Outcome Measures

Primary Outcomes (1)

  • French translation of NBSS SF

    good or very good psychometric properties of the questionnaire

    14 days

Interventions

validation of the French linguistic version and the cross-cultural adaptation of the NBSS-SF.

Eligibility Criteria

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

In total, 105 patients were included with 59 women (56%) and mean age was 53 years. They were affected by a variety of neurological disorders: 58 (55%) had Multiple Sclerosis, 17 (16%) had a Spinal Cord Injury, and 30 (29%) had other neurological conditions such as Parkinson's disease, spina bifida or cauda equina syndrome

You may qualify if:

  • patients with a neurogenic bladder
  • Understand and read French language

You may not qualify if:

  • recent urological surgery
  • recent urinary tract infection
  • treatment modification during the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Neurourology department, Hopital tenon

Paris, 75020, France

Location

MeSH Terms

Conditions

Urinary Bladder, Neurogenic

Interventions

Surveys and Questionnaires

Condition Hierarchy (Ancestors)

Neurologic ManifestationsNervous System DiseasesUrinary Bladder DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Data CollectionEpidemiologic MethodsInvestigative TechniquesHealth Care Evaluation MechanismsQuality of Health CareHealth Care Quality, Access, and EvaluationPublic HealthEnvironment and Public Health

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical Professor

Study Record Dates

First Submitted

May 20, 2021

First Posted

May 26, 2021

Study Start

June 1, 2020

Primary Completion

October 30, 2020

Study Completion

October 30, 2020

Last Updated

May 26, 2021

Record last verified: 2021-05

Locations