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Neurogenic BladderMSBLADDERNCT06072703

Neuromodulating Cortical Regions Involved in Neurogenic Bladder in MS

A study testing Magstim Rapid2 System in people with Neurogenic Bladder and Multiple Sclerosis, run by The Methodist Hospital Research Institute at 1 site in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

Neurogenic overactive bladder (NOAB), characterized by urinary frequency, urgency or urgency incontinence symptoms occurring during the storage phase of the bladder, is the most common urinary complaint in multiple sclerosis (MS). Read more about this study

Who is it for?
Ages 18 years and older, women only
What is being tested?
Magstim Rapid2 System
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
29 participants
Where
1 siteUnited States
Study dates
30 Oct 2023to 31 Dec 2027
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adult women (≥ 18 years of age)
  • Clinically stable MS defined as ExpandedDisability Status Score (EDSS) ≤ 7.5without exacerbation worsening in the preceding 6 months prior to study entry
  • Neurogenic Lower Urinary Tract Dysfunction symptoms ≥ 3 months with NBSS total ≥ 15
  • Individuals with Montreal Cognitive Assessment (MoCA) score >10 will be eligible
  • At least one bladder storage symptoms (e.g., urinary frequency, urinary urgency, nocturia with or without incontinence) indicated by OAB -AT≥ 8
  • Individuals with active urinary tract infection (UTI) will be treated and will be enrolled after negative urinalysis

Who cannot join

  • Pregnant/planning to become pregnant or nursing
  • Urodynamic findings of bladder outlet obstruction
  • Baclofen or other intrathecal pumps, Pacemakers.
  • History of seizure disorder (SZ), immediate family of SZ disorder, in addition to individuals who are taking any medications such as (bupropion) Wellbutrin or substances (ex: heavy alcohol use) that would lower seizure threshold will be excluded.
  • History of bipolar disorder, or individuals who are taking medications that can exacerbate the condition such as tricyclic antidepressants, selective serotonin reuptake inhibitors, serotonin-nor-epinephrine reuptake inhibitors, anti-psychotics, lithium, bupropion (Wellbutrin) and antihistamines will be excluded.
  • All intracranial lesions and hemorrhagic stroke will be excluded
Show all 13Show fewer
  • History of moderate to severe heart disease or unstable angina
  • History of Autonomic Dysreflexia
  • History of interstitial cystitis, pelvic radiation
  • Intra-detrusor botulinumtoxinA (BTX-A) injection over the past 6 months
  • Incarcerated patients will be excluded.
  • Active sacral nerve stimulation (SNS) device or any other spinal stimulators
  • Indwelling urethral or suprapubic catheter

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Betsy Salazar, PhD contact

bhsalazar@houstonmethodist.org

United States1 site, 1 recruiting
  • Houston Methodist Hospital

    Houston, Texas, 77030

    Betsy Salazar, PhD, 713-363-9911, bhsalazar@houstonmethodist.org

    Hamida Rajab, BS, 713-363-9154, MSBladder@houstonmethodist.org

    Recruiting

Other trials in United States

About this study

Official title: A Randomized, Sham-Controlled Clinical Trial Evaluating Individualized Neuromodulation of Cortical Regions Involved in Neurogenic Overactive Bladder in Multiple Sclerosis

Neurogenic overactive bladder (NOAB), characterized by urinary frequency, urgency or urgency incontinence symptoms occurring during the storage phase of the bladder, is the most common urinary complaint in multiple sclerosis (MS). Current management options for NOAB in MS have limited efficacy and considerable adverse effects, which underscores the significance of this study and highlights the need for better, less invasive therapies. This novel study investigates brain therapeutic targets that could shift the focus of NOAB management in MS from a bladder-centric focus to brain restoration; specifically modulating the brain regions identified in the prior functional magnetic resonance imagining studies. Repetitive transcranial magnetic stimulation (rTMS) is a noninvasive brain stimulation that can modulate neurons (excite or inhibit) to improve the connectivity of the regions of interest (ROI). The preliminary data demonstrate, for the first time, significant improvement in bladder symptoms in ten women with MS who have voiding dysfunction following multifocal transcranial magnetic stimulation without any treatment-related adverse effects.

This randomized double-blind, sham-controlled single center clinical trial with an optional open-label extension (OLE) phase is designed to evaluate the effects of targeted rTMS in women with MS and NOAB by investigating restorative reorganization of brain function The main purpose of this study is to determine the effects of individualized repetitive Transcranial Magnetic Stimulation (rTMS) for improving overactive bladder symptoms such as urinary frequency and urgency with or without incontinence in individuals with multiple sclerosis (MS). Patients will undergo initial screening that includes a demographics information, physical exam, past medical and surgical history, medication list, urine pregnancy test (female subjects with childbearing potential), and completion of questionnaires to confirm the eligibility of patients. All eligible patients will be required to complete a functional MRI scan followed by locating the regions of interest through neural navigation system and finally receiving 10 treatment sessions.

Since this is a randomized trial, some patients will receive active treatment/ therapy sessions while others will only receive sham or placebo treatments. The total duration to complete all treatment sessions and follow up visits is approximately 4-5 months.

Read the detailed description

Neurogenic overactive bladder (NOAB), characterized by urinary frequency, urgency or urgency incontinence symptoms occurring during the storage phase of the bladder, is the most common urinary complaint in multiple sclerosis (MS). Current management options for NOAB in MS have limited efficacy and considerable adverse effects, which underscores the significance of this study and highlights the need for better, less invasive therapies. This novel study investigates brain therapeutic targets that could shift the focus of NOAB management in MS from a bladder-centric focus to brain restoration; specifically modulating the brain regions identified in the prior functional magnetic resonance imagining studies. Repetitive transcranial magnetic stimulation (rTMS) is a noninvasive brain stimulation that can modulate neurons (excite or inhibit) to improve the connectivity of the regions of interest (ROI). The preliminary data demonstrate, for the first time, significant improvement in bladder symptoms in ten women with MS who have voiding dysfunction following multifocal transcranial magnetic stimulation without any treatment-related adverse effects.

This randomized double-blind, sham-controlled single center clinical trial with an optional open-label extension (OLE) phase is designed to evaluate the effects of targeted rTMS in women with MS and NOAB by investigating restorative reorganization of brain function and improvement of urinary frequency, urgency and incontinence.

Investigators hypothesize that cortical alterations in bladder volume sensing and their response to stimulation contribute to NOAB symptoms in MS, and that improving the response to bladder distention (ROI within circuits 1 and 2) with neuronavigated rTMS can restore brain activity and improve symptoms (frequency, urgency, and incontinence). Investigators will test this hypothesis with the following specific aims:

Aim 1: To determine the clinical effects of neuronavigated and multifocal active/sham rTMS in women with MS and NOAB Aim 2: To assess the neuroimaging restorative effects of neuronavigated active/sham rTMS in women with MS and NOAB Aim 3: To assess the long-term safety and therapeutic effects of repeated rTMS in women with MS and NOAB who participate in the OLE phase (which subjects from both groups will be invited to enter at the 3-month follow up).

Efforts to improve the current knowledge of brain contribution to lower urinary tract function and the development of an individualized, noninvasive, and effective treatment modality at the level of the brain will greatly impact the quality of life for individuals with MS and subsequently others with OAB, whether neurogenic or non-neurogenic

Being tested
Magstim Rapid2 System
Keywords
Neurogenic bladder, Functional Neuroimaging, repetitive Transcranial Magnetic Stimulation (rTMS), Neuromodulation
Medical subject headings
Urinary Bladder, Neurogenic, Multiple Sclerosis, Urinary Bladder, Overactive

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Magstim Rapid2 SystemDevice

    Also called Repetitive Transcranial Magnetic Stimulation

    The Magstim Rapid2 system is the most commonly used magnetic stimulation system for rTMS clinical studies and therapeutic investigations, capable of selectively inducing, modulating or suppressing neuronal activity. This rTMS device will be used along with the D70 Alpha Coil package, which includes an active coil ideal for focal rTMS and a sham coil, The placebo coil looks identical to its active version and replicates pulse noise without producing the magnetic field necessary to modulate cortical neurons. Additionally, the investigators will be utilizing the StimGuide navigation system (currently available at the HMRI) to accurately target the proposed regions of interest.

    The Magstim Rapid2 system is indicated to be used in Multiple Sclerosis patients as target users with lower urinary tract symptoms such as urinary frequency, urinary urgency, urinary incontinence and voiding dysfunction.

Study groups in NCT06072703
Study groupRoleWhat they receive
Active rTMSActive comparator1 Hz (LF) and 10 Hz (HF) rTMS stimulation will be delivered at 90% of the resting motor threshold for 40 min each week day for two weeks.
Receives: Device: Magstim Rapid2 System
Sham rTMSSham comparatorLow-frequency (1Hz) active rTMS stimulation will be delivered with an inert "sham" stimulation coil for 40 min each week day for two weeks.
Receives: Device: Magstim Rapid2 System

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Changes in subjective clinical outcomes following treatment - Neurogenic Bladder Symptom Score (NBSS) Questionnaire

    The subjective clinical assessment includes changes in validated questionnaires. This assessment has 24 questions that measure bladder symptoms across 3 different domains: incontinence (score range: 0-29), storage and voiding (score range: 0-22), and consequences (score range: 0-23); the highest score is associated with worse symptoms. The last question focuses on quality of life scored from 0 (pleased) to 4 (unhappy). The investigators report raw scores here for all domains and QoL.

    Measured: Baseline, 1 week after, 1 month after and 3 months after rTMS treatment

  2. Changes on patient reported outcomes following treatment - 2 day bladder diary

    Here the investigators evaluate changes on the number of times that symptoms associated with neurogenic overactive bladder occur in a 24hr period after rTMS treatment. Reported outcomes by patients include the number of times the following occur: voids, nocturia, severe urgency episodes, and urgency urinary incontinence episodes.

    Measured: Baseline, 1 week after, 1 month after and 3 months after rTMS treatment

Secondary outcomes (3)
  1. Changes in brain activation patterns following rTMS treatment - functional MRI imaging

    Effect of rTMS treatment in increasing/decreasing activation in ROIs known to be involved in bladder function measured by changes in blood-oxygen-level-dependent (BOLD) signal.

    Measured: Baseline and 1 week after rTMS treatment

  2. Changes in objective clinical outcomes following treatment - Bladder Capacity

    The objective clinical assessment includes changes in bladder capacity (mL), which is assessed by collecting both post void residual (PVR) and voided volume (both in mL) in participants after treatment as compared to baseline.

    Measured: Baseline, 1 week after, 1 month after and 3 months after rTMS treatment

  3. Changes in %Post-Void Residual/Bladder Capacity (PVR/BC) following treatment

    Percentage of PVR in proportion to the bladder capacity will be measured before the intervention and post intervention at 1 and 3 months follow up and will be compared between active and sham neurostimulation groups

    Measured: Baseline, 1 week after, 1 month after and 3 months after rTMS treatment

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted10 Oct 2023
  2. Study start30 Oct 2023
  3. Primary completion31 Dec 2027 (estimated)
  4. Study completion31 Dec 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Intervention Model: 2:1 active: sham assignment, with an optional OLE phase
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
29 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06072703
Sponsor's protocol ID
PRO00035884
Acronym
MSBLADDER
Status last verified
Mar 2026
First submitted
11 May 2023
Last updated
23 Mar 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes

Publications

  • Khavari R, Elias SN, Boone T, Karmonik C. Similarity of functional connectivity patterns in patients with multiple sclerosis who void spontaneously versus patients with voiding dysfunction. Neurourol Urodyn. 2019 Jan;38(1):239-247. doi: 10.1002/nau.23837. Epub 2018 Oct 12.

    PubMed 30311665
  • Khavari R, Elias SN, Pande R, Wu KM, Boone TB, Karmonik C. Higher Neural Correlates in Patients with Multiple Sclerosis and Neurogenic Overactive Bladder Following Treatment with Intradetrusor Injection of OnabotulinumtoxinA. J Urol. 2019 Jan;201(1):135-140. doi: 10.1016/j.juro.2018.07.066.

    PubMed 30076906
  • Khavari R, Tran K, Helekar SA, Shi Z, Karmonik C, Rajab H, John B, Jalali A, Boone T. Noninvasive, Individualized Cortical Modulation Using Transcranial Rotating Permanent Magnet Stimulator for Voiding Dysfunction in Women with Multiple Sclerosis: A Pilot Trial. J Urol. 2022 Mar;207(3):657-668. doi: 10.1097/JU.0000000000002297. Epub 2021 Oct 25.

    PubMed 34694911
  • Khavari R, Karmonik C, Shy M, Fletcher S, Boone T. Functional Magnetic Resonance Imaging with Concurrent Urodynamic Testing Identifies Brain Structures Involved in Micturition Cycle in Patients with Multiple Sclerosis. J Urol. 2017 Feb;197(2):438-444. doi: 10.1016/j.juro.2016.09.077. Epub 2016 Sep 21.

    PubMed 27664581
  • Shi Z, Tran K, Karmonik C, Boone T, Khavari R. High spatial correlation in brain connectivity between micturition and resting states within bladder-related networks using 7 T MRI in multiple sclerosis women with voiding dysfunction. World J Urol. 2021 Sep;39(9):3525-3531. doi: 10.1007/s00345-021-03599-4. Epub 2021 Jan 29.

    PubMed 33512570
  • Tran K, Karmonik C, Boone TB, Khavari R. Are White Matter Tract Integrities Different in Multiple Sclerosis Women With Voiding Dysfunction? Female Pelvic Med Reconstr Surg. 2021 Jan 1;27(1):e101-e105. doi: 10.1097/SPV.0000000000000830.

    PubMed 32265400
  • Tran K, Shi Z, Karmonik C, John B, Rajab H, Helekar SA, Boone T, Khavari R. Therapeutic effects of non-invasive, individualized, transcranial neuromodulation treatment for voiding dysfunction in multiple sclerosis patients: study protocol for a pilot clinical trial. Pilot Feasibility Stud. 2021 Mar 24;7(1):83. doi: 10.1186/s40814-021-00825-z.

    PubMed 33757581
  • Salazar BH, Hoffman KA, Lincoln JA, Karmonik C, Rajab H, Helekar SA, Khavari R. Evaluating noninvasive brain stimulation to treat overactive bladder in individuals with multiple sclerosis: a randomized controlled trial protocol. BMC Urol. 2024 Jan 25;24(1):20. doi: 10.1186/s12894-023-01358-8.

    PubMed 38273296

Questions about this trial

What is this clinical trial studying?

A study testing Magstim Rapid2 System in people with Neurogenic Bladder and Multiple Sclerosis, run by The Methodist Hospital Research Institute at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 23 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Rose Khavari, MD (7137030660, rkhavari@houstonmethodist.org), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Changes in subjective clinical outcomes following treatment - Neurogenic Bladder Symptom Score (NBSS) Questionnaire (time frame: Baseline, 1 week after, 1 month after and 3 months after rTMS treatment). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06072703, which also lists 8 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Mar 2026.

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