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Theta-Burst-Stimulation in Recurrent Stroke Recovery

25 november 2019 uppdaterad av: Christian Grefkes, University Hospital of Cologne
The present study aims at investigating the effects of intermittent theta-burst stimulation (iTBS) for motor recovery in recurrent stroke patients. Therefore a daily intervention of repetitive transcranial magnetic stimulation over 8 days combined with subsequent physiotherapy is compared to a control condition, sham stimulation combined with subsequent physiotherapy. Motor function, degree of disability and quality of life are examined in order to evaluate the effects of iTBS in the rehabilitation of recurrent stroke patients in the first weeks and after three months.

Studieöversikt

Detaljerad beskrivning

To date, the majority of neuromodulation approaches aiming at improving motor recovery after stroke are limited to patients with first-ever ischemic stroke. Therefore, rehabilitation of recurrent stroke mainly includes physiotherapy and occupational therapy. Yet, particular these patients retain movement impairment relevant for activities of daily living.

By using repetitive transcranial magnetic stimulation (rTMS), it is possible to promote recovery of connectivity between brain regions, particularly after stroke and thereby improve motor performance. Previous data indicate that intermittent theta-burst stimulation (iTBS), a protocol of neuromodulation, enhances the effects of subsequent motor training in early rehabilitation after stroke.

The current study aims at investigating whether daily repetitive transcranial magnetic stimulation over 8 days combined with subsequent physiotherapy leads to better motor recovery in recurrent stroke, compared to control condition, physiotherapy after sham stimulation. Motor function, degree of disability and quality of life are examined in order to evaluate the effects of iTBS in the rehabilitation of recurrent stroke patients in the first weeks and after three months.

Studietyp

Interventionell

Inskrivning (Förväntat)

60

Fas

  • Fas 2

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

      • Cologne, Tyskland, 50937
        • Christian Grefkles

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

40 år till 90 år (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Beskrivning

Inclusion Criteria:

  • written consent
  • age: 40-90 years
  • recurrent stroke
  • hemiparesis with impaired hand motor function

Exclusion Criteria:

  • Subjects who are legally detained in an official institute (§20 MPG)
  • Electronic implants or ferromagnetic Implants located in the head, neck or thorax (e.g. clips, intracranial shunt, artificial heart valve, pacemaker)
  • Medication pump (e.g. insulin pump)
  • Metal splinters in eye or head
  • Pregnancy / breastfeeding
  • Severe Neurodegenerative disease
  • Severe Neuroinflammatory disease
  • History of seizures / epilepsy
  • Physical addiction to alcohol, medication, or drugs (excluded: nicotine)
  • Insufficient compliance
  • Present or past malignant tumor involving the central nervous system
  • Severe Psychiatric disease
  • Frequent medication with benzodiazepines, high-potency antipsychotics or tricyclic antidepressants before hospitalization or long-term during hospitalization

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Grundläggande vetenskap
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Trippel

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Aktiv komparator: Real-iTBS
Intermittent theta-burst-stimulation (iTBS) protocol
Sham stimulation
Sham Comparator: Sham-iTBS
Intermittent theta-burst-stimulation (iTBS) protocol
Sham stimulation

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Relative grip force
Tidsram: 3 months after enrollment
grip force as measured with vigorimeter
3 months after enrollment

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Relative grip force
Tidsram: After 8 days of intervention, and 3 months of enrollment
Grip force as measured with vigorimeter
After 8 days of intervention, and 3 months of enrollment
Motor function
Tidsram: After 8 days of intervention, and 3 months of enrollment
Action Research Arm Test, ARAT
After 8 days of intervention, and 3 months of enrollment
Motor function
Tidsram: After 8 days of intervention, and 3 months of enrollment

Fugl-Meyer Motor Scale of the upper extremity, FM The Fugl-Meyer Assessment scale is an ordinal scale that has 3 points for each item. A zero score is given for the item if the subject cannot do the task. A score of 1 is given when the task is performed partially and a score of 2 is given when the task is performed fully.

Minimum score in upper limb = 0 Maximum score in upper limb = 66, Subscales are summed

After 8 days of intervention, and 3 months of enrollment
Stroke severity
Tidsram: After 8 days of intervention, and 3 months of enrollment

National Instituts of Health Stroke Scale, NIHSS The NIHSS is composed of 11 items, each of which scores a specific ability between a 0 and 4. For each item, a score of 0 typically indicates normal function in that specific ability, while a higher score is indicative of some level of impairment.

The individual scores from each item are summed in order to calculate a patient's total NIHSS score. The maximum possible score is 42, with the minimum score being a 0.

After 8 days of intervention, and 3 months of enrollment
Degree of disability
Tidsram: After 8 days of intervention, and 3 months of enrollment
Modified Rankin Scale, mRS The scale runs from 0-6, running from perfect health (0) without symptoms to death (6).
After 8 days of intervention, and 3 months of enrollment
Motor cortex excitability/ Motor evoked potential
Tidsram: After 8 days of intervention, and 3 months of enrollment
Motor evoked potential (MEP) induced by stimulation of the affected motor cortex
After 8 days of intervention, and 3 months of enrollment
Motor cortex excitability/ Resting motor threshold
Tidsram: After 8 days of intervention, and 3 months of enrollment
Resting motor threshold as measured by stimulation of the affected motor cortex, RMT
After 8 days of intervention, and 3 months of enrollment
Motor cortex excitability/ Short-interval intracortical inhibition
Tidsram: After 8 days of intervention, and 3 months of enrollment
Short-interval intracortical inhibition Short-interval intracortical inhibition (SICI) is a widely used paired-pulse transcranial magnetic stimulation (TMS) measure to assess inhibition in human motor cortex
After 8 days of intervention, and 3 months of enrollment
Motor cortex excitability/ Ipsilateral silent period
Tidsram: After 8 days of intervention, and 3 months of enrollment
Ipsilateral silent period The ipsilateral silent period (iSP) is supposed to be a specific marker of transcallosal motor inhibition. Measured by a short attenuation or interruption of ongoing voluntary electromyographic (EMG) activity in hand muscles induced by focal TMS of the ipsilateral M1.
After 8 days of intervention, and 3 months of enrollment
Quality of life
Tidsram: After 8 days of intervention, and 3 months of enrollment
EuroQol 5D questionnaire, EQ-5D
After 8 days of intervention, and 3 months of enrollment
Activities of daily living at admission and discharge in external rehabilitation facility
Tidsram: After 8 days of intervention, and 3 months of enrollment
Barthel-Index (BI) scores as documented by external rehabilitation facility The Barthel scale is an ordinal scale used to measure performance in activities of daily living (ADL). A higher number is associated with a greater likelihood of being able to live at home with a degree of independence following discharge from hospital. The scale yield a score of 0-100.
After 8 days of intervention, and 3 months of enrollment
Days of rehabilitation after intervention phase
Tidsram: 3 months after enrollment
Days of rehabilitation after intervention phase as documented by external rehabilitation facility
3 months after enrollment

Samarbetspartners och utredare

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Utredare

  • Huvudutredare: Christian Grefkes, MD, University Hospital Cologne

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

11 januari 2018

Primärt slutförande (Förväntat)

1 november 2021

Avslutad studie (Förväntat)

1 november 2021

Studieregistreringsdatum

Först inskickad

3 november 2017

Först inskickad som uppfyllde QC-kriterierna

6 november 2017

Första postat (Faktisk)

9 november 2017

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

27 november 2019

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

25 november 2019

Senast verifierad

1 november 2019

Mer information

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