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Multiple SclerosisTMS-SPASMSNCT07786506

Intermittent Theta-Burst Stimulation for Lower-Limb Spasticity and Pain in Multiple Sclerosis

A study testing Active Intermittent Theta-Burst Stimulation (iTBS) in people with Multiple Sclerosis and Muscle Spasticity, run by Comenius University at 1 site in Slovakia.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

Spasticity and neuropathic pain are frequent and disabling symptoms of multiple sclerosis. Intermittent theta-burst stimulation (iTBS) is a non-invasive neuromodulation technique that may modulate cortical and corticospinal excitability and thereby improve motor symptoms and pain. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Active Intermittent Theta-Burst Stimulation (iTBS)
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
40 participants
Where
1 siteSlovakia
Study dates
10 Aug 2026to 31 Oct 2026
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
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosis of multiple sclerosis according to the 2024 McDonald criteria.
  • Expanded Disability Status Scale (EDSS) score from 2.5 to 6.0.
  • Clinically significant spasticity in at least one muscle group of the more affected lower limb, defined as a Modified Tardieu Scale quality of muscle reaction score of at least 2 at velocity V3.
  • Lower-limb pain intensity of at least 4/10 on a 0-10 Visual Analogue Scale at screening.
  • Stable pharmacological treatment, including disease-modifying therapy, for at least 3 months before enrolment.
  • Ability to understand the study procedures and provide written informed consent.

Who cannot join

  • Epilepsy or another condition associated with an increased risk of seizure.
  • Metallic implants, implanted electronic devices, or other conditions contraindicating transcranial magnetic stimulation.
  • Clinical relapse of multiple sclerosis within 30 days before enrolment.
  • Pregnancy or breastfeeding.

Trial locations and contacts

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

Karolína Lisá, MD contact

+421 2 5954 2297

karolina.lisa@gmail.com

Jaroslav Meluš, MD, PhD. contact

+421 2 5954 2297

jaroslavmelus@gmail.com

Slovakia1 site
  • 2nd Department of Neurology, Faculty of Medicine, Comenius University Bratislava and University Hospital Bratislava

    Bratislava, 83305

    Peter Musil, PhD., +421903836788, musil.p@gmail.com

Other trials in Slovakia

About this study

Official title: A Randomized, Sham-Controlled, Assessor-Blinded Study of Intermittent Theta-Burst Stimulation for Lower-Limb Spasticity and Neuropathic Pain in Patients With Multiple Sclerosis

Spasticity and neuropathic pain are frequent and disabling symptoms of multiple sclerosis. Intermittent theta-burst stimulation (iTBS) is a non-invasive neuromodulation technique that may modulate cortical and corticospinal excitability and thereby improve motor symptoms and pain. This randomized, parallel-group, sham-controlled, assessor-blinded study will evaluate the clinical efficacy of active iTBS compared with sham stimulation in adults with multiple sclerosis and clinically significant lower-limb spasticity and pain. Participants will receive five stimulation sessions over one week. Spasticity, pain, patient-reported outcomes, and the electrophysiological H/M ratio will be assessed at baseline and at Weeks 2 and 4 after the intervention.

Read the detailed description

Multiple sclerosis (MS) is a chronic inflammatory and neurodegenerative disease of the central nervous system. Lower-limb spasticity and neuropathic pain can substantially impair mobility, daily functioning, and quality of life. Current symptomatic treatments include oral antispastic medication and targeted botulinum toxin type A injections, but their effects may be incomplete or time-limited. Intermittent theta-burst stimulation is a repetitive transcranial magnetic stimulation protocol with the potential to modulate cortical and corticospinal excitability.

The study will determine whether active iTBS applied over the primary motor cortex produces a greater reduction in lower-limb spasticity and neuropathic pain than sham iTBS in patients with MS.

This is a randomized, two-arm, parallel-group, sham-controlled, assessor-blinded clinical study conducted at the Multiple Sclerosis Centre of the 2nd Department of Neurology, Faculty of Medicine, Comenius University Bratislava and University Hospital Bratislava. Eligible participants will be randomized to active iTBS or sham iTBS. Stimulation will target the primary motor cortex contralateral to the more affected lower limb and the cortical representation of the muscle group corresponding to the dominant spastic pattern, identified using motor-evoked potentials and neuronavigation. Participants will undergo five sessions on consecutive weekdays. The active protocol comprises 1,200 pulses per day, delivered as two 600-pulse blocks separated by a 15-minute inter-block interval.

Clinical and neurophysiological assessments will be performed at baseline and at Weeks 2 and 4 after the intervention by an assessor blinded to treatment allocation. Assessments include the Tardieu Scale, pain measures, MS-specific quality-of-life and symptom questionnaires, and the H/M ratio measured by electromyography. Participants with a persistent clinical indication after completion of the four-week follow-up may receive botulinum toxin type A as standard-of-care rescue treatment.

Being tested
Active Intermittent Theta-Burst Stimulation (iTBS), Sham Intermittent Theta-Burst Stimulation
Keywords
multiple sclerosis, lower-limb spasticity, neuropathic pain, intermittent theta-burst stimulation, iTBS, repetitive transcranial magnetic stimulation, rTMS, motor cortex, H-reflex, H/M ratio
Medical subject headings
Multiple Sclerosis, Muscle Spasticity, Neuralgia

What participants receive

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

  • Active Intermittent Theta-Burst Stimulation (iTBS)Device

    Active iTBS will be delivered using a Neuro-MS/D Advanced Therapeutic magnetic stimulator (Neurosoft) with a figure-of-eight coil. The stimulation target will be the representation of the muscle group corresponding to the dominant spastic pattern of the more affected lower limb in the contralateral primary motor cortex. The target will be identified using motor-evoked potentials and neuronavigation based on the participant's individual MRI. Active motor threshold will be determined from the tibialis anterior muscle. Stimulation intensity will be set at 80% of the active motor threshold. Each burst will consist of 3 pulses at 50 Hz, repeated at 5 Hz. Each 600-pulse block will use a 2-second on/8-second off pattern and last approximately 3 minutes 9 seconds. Two 600-pulse blocks will be delivered per day, separated by a 15-minute interval, for a total of 1,200 pulses per day. Treatment will be administered on five consecutive weekdays, giving 10 stimulation blocks in total.

  • Sham Intermittent Theta-Burst StimulationDevice

    In both groups, the TMS coil will be positioned over the primary motor cortex representation of the more affected lower limb and sham electrodes will be attached to the forehead. During sham stimulation, surface electrodes placed on the forehead will deliver low-intensity electrical stimulation at 2 mA to reproduce the somatosensory experience of TMS. The TMS device will simultaneously produce the characteristic clicking sound of coil discharge. The software will conceal the assigned mode from the participant and stimulation operator. The visit schedule, positioning, and total procedural duration will match the active condition.

Study groups in NCT07786506
Study groupRoleWhat they receive
active iTBSExperimentalParticipants will receive active intermittent theta-burst stimulation over the primary motor cortex contralateral to the more affected lower limb.
Receives: Device: Active Intermittent Theta-Burst Stimulation (iTBS)
sham iTBSSham comparatorParticipants will receive sham stimulation over the same cortical target and according to the same visit schedule as the active group.
Receives: Device: Sham Intermittent Theta-Burst Stimulation

What is being measured

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

  1. The Modified Tardieu Scale Quality of Muscle Reaction Score

    The entire more affected lower limb will be examined using the Modified Tardieu Scale. At baseline, the muscle group corresponding to the dominant spastic pattern will be predefined as the individual target muscle group and the same muscle group will be reassessed at all subsequent visits. The quality of muscle reaction at fast stretch velocity V3 is scored from 0 to 5, where 0 indicates no resistance and higher scores indicate a more pronounced catch or clonus; a lower score indicates less spasticity.

    Measured: Baseline, Week 2, and Week 4 after the final stimulation session

  2. Worst Lower-Limb Pain Intensity on the Numeric Rating Scale

    Participants will rate the worst pain intensity experienced in the affected lower limb during the preceding 14 days on an 11-point Numeric Rating Scale from 0 (no pain) to 10 (worst imaginable pain). Lower scores indicate less pain.

    Measured: Baseline, Week 2, and Week 4 after the final stimulation session

Secondary outcomes (12)
  1. Neuropathic Pain Features Measured by the Douleur Neuropathique 4 Questionnaire

    The Douleur Neuropathique 4 (DN4) questionnaire will be scored from 0 to 10. Higher scores indicate more neuropathic pain features; a score of 4 or more supports the presence of neuropathic pain.

    Measured: Baseline, Week 2, and Week 4 after the final stimulation session

  2. Multiple Sclerosis Impact Scale - Physical Impact Score

    The physical-impact subscale of the Multiple Sclerosis Impact Scale version 2 will be transformed to a 0-100 score. Higher scores indicate a greater physical impact of MS.

    Measured: Baseline, Week 2, and Week 4 after the final stimulation session

  3. Multiple Sclerosis Impact Scale - Psychological Impact Score

    The psychological-impact subscale of the Multiple Sclerosis Impact Scale version 2 will be transformed to a 0-100 score. Higher scores indicate a greater psychological impact of MS.

    Measured: Baseline, Week 2, and Week 4 after the final stimulation session

  4. Multiple Sclerosis Quality of Life-54 - Physical Health Composite Score

    The Physical Health Composite of the Multiple Sclerosis Quality of Life-54 will be scored from 0 to 100. Higher scores indicate better health-related quality of life.

    Measured: Baseline, Week 2, and Week 4 after the final stimulation session

  5. Multiple Sclerosis Quality of Life-54 - Mental Health Composite Score

    The Mental Health Composite of the MSQOL-54 will be scored from 0 to 100. Higher scores indicate better health-related quality of life.

    Measured: Baseline, Week 2, and Week 4 after the final stimulation session

  6. Fatigue Scale for Motor and Cognitive Functions Total Score

    The Fatigue Scale for Motor and Cognitive Functions total score ranges from 20 to 100. Higher scores indicate more severe fatigue.

    Measured: Baseline, Week 2, and Week 4 after the final stimulation session

  7. Hospital Anxiety and Depression Scale - Anxiety Subscale Score

    The Hospital Anxiety and Depression Scale Anxiety subscale ranges from 0 to 21. Higher scores indicate more severe anxiety symptoms.

    Measured: Baseline, Week 2, and Week 4 after the final stimulation session

  8. Hospital Anxiety and Depression Scale - Depression Subscale Score

    The Hospital Anxiety and Depression Scale Depression subscale ranges from 0 to 21. Higher scores indicate more severe depressive symptoms.

    Measured: Baseline, Week 2, and Week 4 after the final stimulation session

  9. Multiple Sclerosis Neuropsychological Screening Questionnaire Score

    The patient-report Multiple Sclerosis Neuropsychological Screening Questionnaire total score ranges from 0 to 60. Higher scores indicate greater perceived neuropsychological impairment.

    Measured: Baseline, Week 2, and Week 4 after the final stimulation session

  10. Patient-Determined Disease Steps Score

    The Patient-Determined Disease Steps score ranges from 0 (normal) to 8 (bedridden). Higher scores indicate greater walking disability.

    Measured: Baseline, Week 2, and Week 4 after the final stimulation session

  11. H/M Ratio as a Neurophysiological Marker of Spinal Excitability

    The H-reflex will be elicited by stimulation of the tibial nerve and recorded from the soleus muscle. The maximal H-reflex amplitude will be divided by the maximal M-wave amplitude and expressed as Hmax/Mmax × 100%. The same limb, electrode placement, and acquisition protocol will be used at all visits.

    Measured: Baseline, Week 2, and Week 4 after the final stimulation session

  12. Treatment-Emergent Adverse Events

    Number and proportion of participants experiencing any treatment-emergent adverse event during the stimulation week and follow-up. Events will be recorded by type, severity, seriousness, and relationship to the stimulation procedure.

    Measured: From the first stimulation session through Week 4 after the final stimulation session

Timeline

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

  1. First posted26 Aug 2026
  2. Study start10 Aug 2026 (estimated)
  3. Primary completion31 Oct 2026 (estimated)
  4. Study completion31 Oct 2026 (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
Forty participants will be assigned in a 1:1 ratio to active iTBS (n=20) or sham iTBS (n=20).
Masking
Triple blind
Who is masked
Participant, Care provider, Outcomes assessor
Enrolment
40 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07786506
Sponsor's protocol ID
TMS-SPASMS-01
Acronym
TMS-SPASMS
Status last verified
Aug 2026
First submitted
17 Aug 2026
Last updated
26 Aug 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Active Intermittent Theta-Burst Stimulation (iTBS) in people with Multiple Sclerosis and Muscle Spasticity, run by Comenius University at 1 site in Slovakia.

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 4 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: opening soon, as of the sponsor's last update on 26 Aug 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 Slovakia. 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 Karolína Lisá, MD (+421 2 5954 2297, karolina.lisa@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The Modified Tardieu Scale Quality of Muscle Reaction Score (time frame: Baseline, Week 2, and Week 4 after the final stimulation session). 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?
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 26 Aug 2026.

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