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Parkinson DiseaseNCT05174299

The Effect of Multi-target Magnetic Stimulation on Freezing Gait in PD

A study testing magnetic stimulation in people with Parkinson Disease, run by The First Affiliated Hospital with Nanjing Medical University at 1 site in China.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

This study is a double-blinded randomized study examining the effectiveness of the multi-target magnetic stimulation treatment on Freezing of Gait (FOG) phenomenon in patients with Parkinson's disease. Read more about this study

Who is it for?
Ages 40 to 80 yearsHealthy volunteers can take part
Conditions the study is for
Parkinson Disease
What is being tested?
magnetic stimulation
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
57 participants
Where
1 siteChina
Study dates
1 Oct 2021to 30 Dec 2022
Phase
Interventional
Are there results?
None posted in the registry

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 40 to 80 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • 1.Idiopathic Parkinson's disease (PD), as diagnosed by a neurologist.
  • 2.Item 3 of the Freezing of Gait Questionnaire(FOG-Q) scored ≥1.
  • 3.Age between 40 and 80 years old.
  • 4.Mini-Mental State Examination score >24.
  • 5.Ability to walk 30 meters independently.
  • 6.Stable medication.
  • 7.Patients experienced FOG in both medication "on" and "off" states.

Who cannot join

  • 1.Other neurological or psychiatric disorders.
  • 2.Severe personality disorder.History of epilepsy, seizures, or convulsions.
  • 3.History of head injury or stroke.
  • 4.Metal remains of the skull or inside the brain (outside the oral cavity).
  • 5.Surgeries including metallic implants or known history of metal particles in the eye, pacemakers,hearing devices transplantation, or medical pumps.
  • 6.Severe dyskinesia, termor, cognitive, visual or auditory impairment.
  • 7.Patients who could not complete the follow-up.

Trial locations and contacts

1 site in 1 country.

China1 site, 1 recruiting
  • the First Affiliated Hospital of Nanjing Medical University

    Nanjing, Jiangsu, 210029

    Kezhong Zhang, 13770840575, kezhong_zhang1969@126.com

    Recruiting

Other trials in China

About this study

Official title: The Effect of Multi-target Magnetic Stimulation on Freezing Gait in Parkinson's Disease

This study is a double-blinded randomized study examining the effectiveness of the multi-target magnetic stimulation treatment on Freezing of Gait (FOG) phenomenon in patients with Parkinson's disease. We hypothesize that treatment using magnetic stimulation on motor cortex combined with spinal cord will improve FOG and gait symptoms in patients with Parkinson's disease.

Read the detailed description

Patients in the Experimental group underwent ten sessions of double active magnetic stimulation with low frequency repetitive transcranial magnetic stimulation (rTMS) over the bilateral primary motor cortex of the lower leg followed by low frequency repetitive magnetic stimulation over the spinal cord, whereas patients in the Active Comparator group underwent ten sessions of single active magnetic stimulation with low frequency rTMS over the bilateral primary motor cortex of the lower leg. In addition, patients in the Sham Comparator group underwent 10 sessions of double sham rTMS on motor cortex and spinal cord. Assessments of FOG, gait function, motor symptoms and excitability of primary motor cortex motor were performed three times: at baseline, one day post intervention, one month post intervention.

Being tested
magnetic stimulation
Keywords
freezing of gait, Therapeutics, rTMS, spinal cord stimulation
Medical subject headings
Parkinson Disease

What participants receive

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

  • magnetic stimulationDevice

    For Experimental Arm, active magnetic stimulation on motor cortex followed by active magnetic stimulation on spinal cord, patients underwent ten sessions of double active magnetic stimulation with low frequency repetitive transcranial magnetic stimulation (rTMS) over the bilateral primary motor cortex of the lower leg followed by low frequency repetitive magnetic stimulation over the spinal cord. For Active Comparator Arm, active magnetic stimulation on motor cortex followed by sham magnetic stimulation on spinal cord. For Sham Comparator Arm, sham magnetic stimulation on motor cortex followed by sham magnetic stimulation on spinal cord.

Study groups in NCT05174299
Study groupRoleWhat they receive
double active magnetic stimulationExperimentalthe multi-target magnetic stimulation on motor cortex combined with spinal cord
Receives: Device: magnetic stimulation
single active magnetic stimulationActive comparatorthe active magnetic stimulation on motor cortex and sham stimulation on spinal cord
Receives: Device: magnetic stimulation
double sham magnetic stimulationSham comparatorthe sham magnetic stimulation on motor cortex and sham stimulation on spinal cord
Receives: Device: magnetic stimulation

What is being measured

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

  1. Changes of Freezing of Gait Questionnaire (FOG-Q)

    The Freezing of Gait questionnaire will be used to quantify the frequency and severity of this symptom. The score will be compared to the baseline. The minimum and maximum values of the FOG-Q are 0 and 24. A higher FOG-Q score means a worse outcome.

    Measured: Assessed at baseline, one day post intervention, one month post intervention

Secondary outcomes (10)
  1. The motor part of the Unified Parkinson's Disease Rating Scale

    The measure mainly reflects the overall severity of Parkinson's disease motor symptoms. The minimum and maximum values of the motor part of the Unified Parkinson's Disease Rating Scale are 0 and 108. A higher score means a worse outcome.

    Measured: Assessed at baseline, one day post intervention, one month post intervention

  2. Gait speed

    Gait speed (m/s) was evaluated at baseline, one day post intervention, one month post intervention using a portable Inertial Measurement Unit system during a 5-m timed Up-and-Go (TUG) test.

    Measured: Assessed at baseline, one day post intervention, one month post intervention

  3. Stride length

    Stride length (cm) was evaluated at baseline, one day post intervention, one month post intervention using a portable Inertial Measurement Unit system during a 5-m timed Up-and-Go (TUG) test.

    Measured: Assessed at baseline, one day post intervention, one month post intervention

  4. Stride time variability

    Stride time variability (%) was evaluated at baseline, one day post intervention, one month post intervention using a portable Inertial Measurement Unit system during a 5-m timed Up-and-Go (TUG) test.

    Stride time variability was expressed as coefficient of variation [CV].

    Measured: Assessed at baseline, one day post intervention, one month post intervention

  5. Double support

    Double support (%) was evaluated at baseline, one day post intervention, one month post intervention using a portable Inertial Measurement Unit system during a 5-m timed Up-and-Go (TUG) test.

    Measured: Assessed at baseline, one day post intervention, one month post intervention

  6. Resting motor threshold (RMT)

    RMT (% TMS output intensity) is defined as the lowest intensity required to elicit MEPs of > 50 μV in at least 5 of 10 consecutive trials while the target muscle is relaxed. RMT was determined to be the nearest 1% of the maximum stimulator output.

    Measured: Assessed at baseline, one day post intervention.

  7. MEP amplitude at 120% RMT intensity (AMP)

    Five single stimuli were delivered to the optimal stimulation point at an intensity of 120% of RMT, and the mean peak-to-peak amplitude of the MEPs was calculated, which is the AMP (mV).

    Measured: Assessed at baseline, one day post intervention.

  8. Cortical silent period (CSP)

    The CSP (ms) is measured through electromyographic signal recording (EMG) on a target muscle and refers to the period of EMG silence following the elicitation of a motor-evoked potential (MEP) through a single TMS pulse delivered over the contralateral primary motor cortex.

    Individuals were asked to actively contract abductor pollicis brevis (APB) with 20% of the maximum force, while a single pulse with 150% of RMT was applied to the opposite primary motor cortex. We recorded the time from pulse outputting to the recovery of inhibited active contraction as CSP. The above protocol was repeated ten times, and the average value of CSP was calculated.

    Measured: Assessed at baseline, one day post intervention.

  9. Short-interval intracortical inhibition (SICI)

    SICI was assessed with a subthreshold conditioning stimulus (80% RMT) and a supra-threshold test stimulus (1 mV MEP) with a 4ms interstimulus interval between conditioning and test stimuli. Ten trials were acquired for each interstimulus interval. SICI was expressed as the percentage ratio between the test and conditioning MEP.

    Measured: Assessed at baseline, one day post intervention.

  10. Intracortical facilitation (ICF)

    ICF was assessed with a subthreshold conditioning stimulus (80% RMT) and a supra-threshold test stimulus (1 mV MEP) with a 15 ms interstimulus interval between conditioning and test stimuli. Ten trials were acquired for each interstimulus interval. ICF was expressed as the percentage ratio between the test and conditioning MEP.

    Measured: Assessed at baseline, one day post intervention.

Timeline

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

  1. First posted30 Dec 2021
  2. Study start1 Oct 2021
  3. Primary completion30 Nov 2022 (estimated)
  4. Study completion30 Dec 2022 (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
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
57 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05174299
Sponsor's protocol ID
2021-SR-209
Status last verified
Dec 2022
First submitted
8 Nov 2021
Last updated
6 Dec 2022
Results posted
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 magnetic stimulation in people with Parkinson Disease, run by The First Affiliated Hospital with Nanjing Medical University at 1 site in China.

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 7 inclusion and 7 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: status not confirmed, as of the sponsor's last update on 6 Dec 2022. 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 China. 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?

Results are not available in the source record.

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

Contact Kezhong Zhang (13770840575, kezhong_zhang1969@126.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Changes of Freezing of Gait Questionnaire (FOG-Q) (time frame: Assessed at baseline, one day post intervention, one month post intervention). 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 6 Dec 2022.

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