Role of Urinary Sphingosine 1-Phosphate as a Biomarker for Detrusor Hyperactivity in Multiple Sclerosis (SEP-1)

December 23, 2025 updated by: University Hospital, Toulouse

Prospective Study Evaluating the Role of Urinary Sphingosine 1-Phosphate as a Biomarker for Detrusor Hyperactivity in Multiple Sclerosis

This study aims to establish a link between urinary Sphingosine 1-Phosphate (S1P) levels and detrusor activity in multiple sclerosis (MS) patients. MS often involves urological symptoms, primarily overactive bladder. The gold standard for evaluation and treatment monitoring is invasive urodynamic testing. Preliminary research at Toulouse University Hospital suggests urinary S1P levels may be a potential biomarker for detrusor activity in MS. This study aims to confirm this potential biomarker's utility.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Estimated)

400

Contacts and Locations

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

Study Contact

Study Locations

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

N/A

Sampling Method

Probability Sample

Study Population

Patients diagnosed with multiple sclerosis

Description

Inclusion Criteria:

  • French residents enrolled in the social security system
  • Patients diagnosed with multiple sclerosis (according to McDonald 2017 criteria), whether receiving treatment or not
  • Patients scheduled for urodynamic assessment as part of their management

Exclusion criteria:

  • Pregnant or lactating females
  • Patients under legal guardianship
  • Untreated urinary tract infection at the time of inclusion
  • Known anatomical subvesical obstruction Known pelvic floor disorder Urothelial carcinoma Interstitial cystitis Augmentation cystoplasty

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
multiple sclerosis
Patients diagnosed with MS requiring urodynamic assessment will be recruited during outpatient visits at Toulouse University Hospital. Initial consultations will involve questionnaire completion, 72-hour voiding diaries, and urine sample collection just before urodynamic assessments.
Other: S1P level
Patients will undergo urinary S1P level assessments before treatment, 6 weeks post-injection, and following any symptomatic changes that may lead to another urodynamic assessments.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
S1P concentration
Time Frame: Day 0, after 6 months
To compare of the urinary concentration of S1P related to creatinine in urine sample, as a function of the detrusor activity determined at BUD, before and after a first intra-detrusor injection of botulinum toxin.
Day 0, after 6 months

Collaborators and Investigators

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

Sponsor

University Hospital, Toulouse

Investigators

  • Principal Investigator: Xavier Game, MD, University Hospital, Toulouse

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)

December 4, 2023

Primary Completion (Estimated)

December 1, 2027

Study Completion (Estimated)

December 1, 2027

Study Registration Dates

First Submitted

November 29, 2023

First Submitted That Met QC Criteria

November 29, 2023

First Posted (Actual)

December 7, 2023

Study Record Updates

Last Update Posted (Actual)

December 31, 2025

Last Update Submitted That Met QC Criteria

December 23, 2025

Last Verified

December 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • RC31/23/0346

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

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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