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 volunteersQualifiers
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
Parallel
Treatments tested in this trial
Intermittent Theta Burst Stimulation
DeviceiTBS 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
DeviceIt 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
Trial outcomes
Primary outcomes
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.
Secondary outcomes
Modified Ashworth Scale (MAS)
Assesses spasticity on a 6 point scale/muscle (0p no impairment, 5p max impairment/muscle)
Neuroflexor
Medical technology device. Assesses spasticity by identifying the neural, viscous and elastic components during passive movement using a biomechanical algorithm (presented in Newton)
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.
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.
Other outcomes
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).
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).
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.
Sponsors and contacts
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Danderyd Hospital
Lead sponsor
Karolinska Institutet
Collaborator