Effects of Intermitted Theta Burst Stimulation (iTBS) on Motor Recovery of Upper Extremity in Chronic Stroke Patients

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorDanderyd Hospital

About this trial

This study aims to evaluate the effects and clinical feasibility of non-invasive brain stimulation protocols, specifically intermittent Theta Burst Stimulation, as part of rehabilitation interventions for motor recovery of upper extremity in the chronic phase after stroke.

It also seeks to explore the underlying mechanisms by investigating changes of functional and structural brain networks.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age over 18

Chronic stroke (>6 months)

Residual hemiparesis FM-UE>17

Disqualifiers

Metal implants

Epilepsy/seizures

Pregnancy

Claustrophobia (related to MRIs exams)

Trial design

Design model

Parallel

Treatments tested in this trial

  • Intermittent Theta Burst Stimulation

    Device

    iTBS protocol: 600 pulses at 80% of AMT for 190 sec on the ipsilesional motor cortex, targeted with the support of a neuronavigational system, 15 sessions over a period of 5 weeks

  • Sham Intermittent Theta Burst Stimulation

    Device

    It is identical to its active version, replicates operational sounds, and delivers a very shallow magnetic field to mimic the sensation of magnetic stimulation

Treatment groups

48 Participants
are divided into 2 treatment groups
Group A: Ipsilesional motor cortex iTBS and conventional rehabilitationExperimental treatment 1 intervention
Group B: Ipsilesional motor cortex sham-iTBS and conventional rehabilitationSham comparator 1 intervention

Trial outcomes

Primary outcomes

1

Fugl-Meyer Assessment - Upper Extremity

used to quantify recovery of sensorimotor function in the upper extremity after a stroke. It is a 63 item test scored on a 3-level ordinal scale. The score ranges from 0 to 126 points. A higher score indicates recovery of sensorimotor function.

Time frame
At baseline, after completion of the 5 week intervention to assess change as well at 12 weeks follow up.

Secondary outcomes

1

Modified Ashworth Scale (MAS)

Assesses spasticity on a 6 point scale/muscle (0p no impairment, 5p max impairment/muscle)

Time frame
At baseline, after completion of the 5 week intervention to assess change as well at 12 weeks follow up.
2

Neuroflexor

Medical technology device. Assesses spasticity by identifying the neural, viscous and elastic components during passive movement using a biomechanical algorithm (presented in Newton)

Time frame
At baseline, after completion of the 5 week intervention to assess change as well at 12 weeks follow up.
3

Box and Block Test (BBT)

measures unilateral gross manual dexterity. The score is based on the number of blocks transferred from one compartment to the other compartment in 60 seconds. Higher scores indicate better manual dexterity.

Time frame
At baseline, after completion of the 5 week intervention to assess change as well at 12 weeks follow up.
4

Action Research Arm Test (ARAT)

assesses upper extremity activity capacity in people with stroke. It is a 19-item test scored on a 4-level ordinal scale (0-3). The score ranges from 0 to 57. Higher scores indicate better performance of the upper extremity.

Time frame
At baseline, after completion of the 5 week intervention to assess change as well at 12 weeks follow up.

Other outcomes

1

National Institutes of Health Stroke Scale (NIHSS)

quantifies stroke severity based on weighted evaluation findings. The total NIHSS score ranges from 0 to 42, with higher scores indicating more severe strokes, categorized as follows: minor stroke (1-4), moderate stroke (5-15), moderate to severe stroke (16-20), and severe stroke (21-42).

Time frame
At baseline
2

Barthel Index (BI)

measures a person's ability to complete activities of daily living (ADL). Scores range from 0 to 100, categorized as follows: Total dependence (0-20), Severe dependence (21-60), Moderate dependence (61-90), Slight dependence (91-99), and Independence (100).

Time frame
At baseline.
3

Theoretical Framework of Acceptability questionnaire

to assess the acceptability of healthcare interventions, based on the developed Theoretical Framework of Acceptability (TFA). It uses a 5-point Likert scale to assess acceptability of the intervention. Higher scores indicate higher acceptability.

Time frame
After completion of the 5 week intervention to assess acceptability.

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Danderyd Hospital

Lead sponsor

Karolinska Institutet

Collaborator