ClinicalTrials.gg
CompletedNCT03627416Updated Sep 27, 2021Results posted

Repetitive Transcranial Magnetic Stimulation as Therapy in Hereditary Spastic Paraplegia and Adrenomyeloneuropathy

An interventional study of rTMS in Hereditary Spastic Paraplegia and Adrenomyeloneuropathy, sponsored by Jakub Antczak. Completed at 1 site in Poland. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2021-09-27.

Sponsored by Jakub Antczak · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 9 months after the study started (first participant enrolled Jan 2017, registered Oct 2017).
Phase
Not applicable
Study type
Interventional
Enrollment
15
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

Hereditary spastic paraplegia (HSP) is the group of inherited disorders, characterized by progressive gait disturbance. There is no established therapy. Adrenoleukodystrophy (AMN) is an x-linked hereditary disease. One of its form, the adrenomyeloneuropathy has the same symptoms as HSP. Current therapeutic options for AMN are very limited. Repetitive Transcranial Magnetic Stimulation (rTMS) is a noninvasive method of modulation of brain plasticity. The purpose of this study is to compare the effectiveness of rTMS in improving the HSP- and AMN-related gait disturbance and other symptoms with sham stimulation.

Intervention will include five daily sessions. In each session 1500 magnetic pulses will be administered to each of both primary motor areas for lower extremities. Assessment of gait and of strength and spasticity of lower extremities will be made before and after therapy, as well as two weeks later.

Read the detailed description

Hereditary spastic paraplegia (HSP) is a group of inherited disorders, characterized by progressive gait disturbance with weakness and spasticity, which predominate in lower extremities. There is no established therapy. Adrenoleukodystrophy (AMN) is an x-linked hereditary disease. One of its form, the adrenomyeloneuropathy has the same symptoms as HSP. Current therapeutic options for AMN are very limited. Repetitive Transcranial Magnetic Stimulation (rTMS), a noninvasive method of modulation of brain plasticity proved to be effective in improving the gait performance in several conditions such as Parkinson Disease, vascular Parkinsonism, partial spinal cord injury and in post-stroke paresis. Previous studies documented also altered cortical excitability in HSP patients.

The purpose of this study is to compare the effectiveness of 10 hertz (Hz) rTMS over the primary motor cortices in improving the gait and strength and spasticity of lower extremities with sham stimulation in HSP and AMN patients.

Intervention will include five daily sessions. In each session 1500 magnetic pulses will be administered to each of both primary motor areas for lower extremities. Assessment of gait and of strength and spasticity of lower extremities will be made before and after therapy, as well as two weeks later.

02

Conditions studied

  • Hereditary Spastic Paraplegia
  • Adrenomyeloneuropathy

Keywords

  • Hereditary spastic paraplegia
  • repetitive transcranial magnetic stimulation
  • disturbed gait
  • Adrenomyeloneuropthy
03

In context

Spastic Paraplegia, Hereditary

50 studies on the registry are indexed under Spastic Paraplegia, Hereditary; 19 are open to participants now.

This study's enrollment of 15 is below the median of 25 across 24 interventional studies indexed under Spastic Paraplegia, Hereditary.

Browse Spastic Paraplegia, Hereditary studies →

Lead sponsor

Jakub Antczak is the lead sponsor of 8 studies on the registry; 5 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • diagnosis of hereditary spastic paraplegia - confirmed genetically, on the basis of family history or on exclusion or diagnosis of adrenomyeloneuropathy - confirmed genetically or by the elevated plasma very long chain fatty acid or on family history
  • Gait disturbances affecting daily activities
  • Ability to walk 10 meters without assistance or with crutches or with rollator walker

Exclusion criteria

Exclusion Criteria:

  • Presence of signs or symptoms indicating other than HSP or AMN ethiology of gait disturbances
  • for rTMS as listed by the Guidelines of the International Federation of Clinical Neurophysiology (IFCN 2009) i.e. seizure in the past, epilepsy, presence of magnetic material in the reach of magnetic field, pregnancy, likelihood to get pregnant, intracranial electrodes, cardiac pacemaker or intracardiac lines, frequent syncopes
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
15 participants (actual)

Study arms

  • Experimental
    active rTMS

    10 hertz (Hz) rTMS will be administered over bilateral primary motor areas for the muscles of lower extremities. Therapy will include five daily sessions (on consecutive week days). In every sessions 3000 magnetic pulses of 90% of the resting motor threshold intensity will be elicited.

    Device: rTMS

  • Sham comparator
    Sham rTMS

    Sham stimulation will mimic the active one except that the stimulating coil will be held perpendicularly to the scalp, which assures similar impression as the active stimulation but prevents that significant magnetic field will reach brain tissue.

    Device: rTMS

Interventions

  • DevicerTMS

    high frequency rTMS to induce the long term potentiation of primary motor areas for the muscles of lower extremities

06

What researchers measure

Primary outcomes

  1. Change From Baseline Walking Time in 10 Meter Walk Test to the Measurement Taken Directly After rTMS

    Change in time of walking barefoot the distance of 10 meters with maximal speed, but safely, between baseline and directly after rTMS.

    Time frame: Before rTMS, directly (on the same day) after rTMS

Secondary outcomes

  1. Change in Timed up and go Test

    Time of standing up from a chair, walking three metres to cross a line drawn 3 meters ahead and going back to sit down on the chair.

    Time frame: Baseline, directly (on the same day) after rTMS and 14 days later

  2. Change in Medical Research Council Scale (MRC)

    Change in bilateral assessment of the strength of following movements: hip flexion, knee flexion and extension, ankle flexion and extension. Assessment will be made according to six degrees (0 to 5) MRC scale, with higher values representing stronger movements, which is better outcome. Values are averaged from all movements tested.

    Time frame: Baseline, directly (on the same day) after rTMS and 14 days later

  3. Modified Ashworth Scale

    Bilateral assessment of spasticity in following movements: hip flexion, knee flexion and extension, ankle flexion and extension. Assessment will be made according to six degrees (0 to 5) Modified Ashworth Scale, with higher values representing more severe spasticity, which is worse outcome. Values are averaged from all movements tested.

    Time frame: Baseline, directly (on the same day) after rTMS and 14 days later

  4. Change From Baseline Walking Time in 10 Meter Walk Test to the Measurement Taken Two Weeks After rTMS

    Change in time of walking barefoot the distance of 10 meters with maximal speed, but safely, between baseline and 14 days after finishing rTMS therapy.

    Time frame: Baseline, 14 days after rTMS

07

Results

Posted Sep 27, 2021
Limitations and caveats
Limited number of sessions, which may decrease the magnitude of the therapeutic effect. The abundant pharmacotherapy with baclofen could considerably reduce observed effects on spasticity.

Participant flow

We recruited 15 patients meeting inclusion criteria. One patient dropped out due to seizure, when he was in active treatment.

Participant flow — Overall Study
MilestoneActive rTMS First, Then Sham rTMSSham rTMS, Then Active rTMS
Started87
Completed86
Not completed01
Withdrew: Adverse event01

Outcome measures

PrimaryChange From Baseline Walking Time in 10 Meter Walk Test to the Measurement Taken Directly After rTMS

Change in time of walking barefoot the distance of 10 meters with maximal speed, but safely, between baseline and directly after rTMS.

Time frame:
Before rTMS, directly (on the same day) after rTMS
Reported as:
Mean · seconds
Change From Baseline Walking Time in 10 Meter Walk Test to the Measurement Taken Directly After rTMS
secondsActive rTMSSham rTMS
Change From Baseline Walking Time in 10 Meter Walk Test to the Measurement Taken Directly After rTMS-5.41 ± 16.421.70 ± 8.52
SecondaryChange in Timed up and go Test

Time of standing up from a chair, walking three metres to cross a line drawn 3 meters ahead and going back to sit down on the chair.

Time frame:
Baseline, directly (on the same day) after rTMS and 14 days later
Reported as:
Mean · seconds
Change in Timed up and go Test
secondsActive rTMSSham rTMS
Baseline vs. after rTMS-4.72 ± 13.900.18 ± 4.83
Baseline vs. 14 days later-2.92 ± 7.290.78 ± 7.24
SecondaryChange in Medical Research Council Scale (MRC)

Change in bilateral assessment of the strength of following movements: hip flexion, knee flexion and extension, ankle flexion and extension. Assessment will be made according to six degrees (0 to 5) MRC scale, with higher values representing stronger movements, which is better outcome. Values are averaged from all movements tested.

Time frame:
Baseline, directly (on the same day) after rTMS and 14 days later
Reported as:
Mean · score on a scale
Change in Medical Research Council Scale (MRC)
score on a scaleActive rTMSSham rTMS
Baseline vs. directly after rTMS0 ± 00.06 ± 0.22
Baseline vs. 14 days later0.09 ± 0.270 ± 0.32
SecondaryModified Ashworth Scale

Bilateral assessment of spasticity in following movements: hip flexion, knee flexion and extension, ankle flexion and extension. Assessment will be made according to six degrees (0 to 5) Modified Ashworth Scale, with higher values representing more severe spasticity, which is worse outcome. Values are averaged from all movements tested.

Time frame:
Baseline, directly (on the same day) after rTMS and 14 days later
Reported as:
Mean · score on a scale
Modified Ashworth Scale
score on a scaleActive rTMSSham rTMS
Baseline vs. after rTMS-0.36 ± 0.500 ± 0.46
Baseline vs. 14 days later-0.27 ± 0.46-0.11 ± 0.53
SecondaryChange From Baseline Walking Time in 10 Meter Walk Test to the Measurement Taken Two Weeks After rTMS

Change in time of walking barefoot the distance of 10 meters with maximal speed, but safely, between baseline and 14 days after finishing rTMS therapy.

Time frame:
Baseline, 14 days after rTMS
Reported as:
Mean · seconds
Change From Baseline Walking Time in 10 Meter Walk Test to the Measurement Taken Two Weeks After rTMS
secondsActive rTMSSham rTMS
Change From Baseline Walking Time in 10 Meter Walk Test to the Measurement Taken Two Weeks After rTMS-5.84 ± 17.520.93 ± 6.54

Adverse events

Collected over 2 years.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Active rTMS0/15 (0%)1/15 (6.7%)4/15 (26.7%)
Sham rTMS0/15 (0%)0/15 (0%)0/15 (0%)
Most frequent serious events
Most frequent serious events
EventActive rTMSSham rTMS
SeizureNervous system disorders1/150/15
Most frequent other events
Most frequent other events
EventActive rTMSSham rTMS
Head acheNervous system disorders3/150/15
SleplessnessNervous system disorders1/150/15

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Active rTMS, Then Sham rTMSSham rTMS, Then Active rTMSTotal
<=18 years000
Between 18 and 65 years8715
>=65 years000
Age, Continuous
Age, Continuous(years)Active rTMS, Then Sham rTMSSham rTMS, Then Active rTMSTotal
Mean45.5 ± 11.941.7 ± 7.544.8 ± 10.1
Sex: Female, Male
Sex: Female, Male(Participants)Active rTMS, Then Sham rTMSSham rTMS, Then Active rTMSTotal
Female235
Male6410
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)Active rTMS, Then Sham rTMSSham rTMS, Then Active rTMSTotal
Count of participants——0
Region of Enrollment
Region of Enrollment(participants)Active rTMS, Then Sham rTMSSham rTMS, Then Active rTMSTotal
Poland8715
Central motor conduction time
Central motor conduction time(milliseconds)Active rTMS, Then Sham rTMSSham rTMS, Then Active rTMSTotal
Mean18.2 ± 3.420.3 ± 6.619.1 ± 5.2
Amplitude of motor evoked potentials
Amplitude of motor evoked potentials(millivolts)Active rTMS, Then Sham rTMSSham rTMS, Then Active rTMSTotal
Mean1.1 ± 0.60.7 ± 0.50.9 ± 0.5
Motor threshold for left abductor hallucis
Motor threshold for left abductor hallucis(percentage of the maximal stimulator out)Active rTMS, Then Sham rTMSSham rTMS, Then Active rTMSTotal
Mean64.1 ± 7.563.5 ± 8.063.9 ± 7.7

1 further baseline measures are reported on the registry.

08

Study locations

1 site
  • Jagiellonian University Medical College, Department of Neurology
    Kraków, 31503, Poland
09

References and documents

Publications

  • Rossi S, Hallett M, Rossini PM, Pascual-Leone A; Safety of TMS Consensus Group. Safety, ethical considerations, and application guidelines for the use of transcranial magnetic stimulation in clinical practice and research. Clin Neurophysiol. 2009 Dec;120(12):2008-2039. doi: 10.1016/j.clinph.2009.08.016. Epub 2009 Oct 14. PubMed 19833552 ↗
  • Antczak J, Pera J, Dabros M, Kozminski W, Czyzycki M, Wezyk K, Dwojak M, Banach M, Slowik A. The Effect of Repetitive Transcranial Magnetic Stimulation on Motor Symptoms in Hereditary Spastic Paraplegia. Neural Plast. 2019 May 12;2019:7638675. doi: 10.1155/2019/7638675. eCollection 2019. PubMed 31214256 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 27, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03627416
Lead sponsor
Jakub Antczak
Responsible party
Jakub Antczak (Principal Investigator, Jagiellonian University) — Sponsor-investigator
First posted
Aug 13, 2018
Start date
Jan 9, 2017
Primary completion
Jan 1, 2019
Completion
Jan 1, 2019
Results posted
Sep 27, 2021
Last update
Sep 27, 2021

Study contacts

Jakub M Antczak, MD
principal investigator · Jagiellonian University Medical College, Department of Neurology

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2021. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion