Stroke Clinical Trial
— RELEARNOfficial title:
Robotic Evaluations of Motor Learning During Stroke Neurorehabilitation
The RELEARN trial is a a prospective longitudinal cohort study sampled by convenience. Stroke survivors and healthy control individuals will be recruited to analyze motor learning in the upper extremity and its neural basis in early stroke recovery.
Status | Recruiting |
Enrollment | 300 |
Est. completion date | September 1, 2026 |
Est. primary completion date | September 1, 2026 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria for Stroke Participants: - First time, unilateral ischemic stroke in middle cerebral artery territory, motor and/or sensory tracts and confirmed by clinical examination (including neuroimaging) - 7±6 days post-stroke - Upper limb impairment - >18 years old - Fugl-Meyer upper extremity score between 30 and 57 - Vision better than 20/50 (corrected) - Able to follow 3-step task commands Inclusion Criteria for Control Participants: - >18 years old - Good health Exclusion Criteria for Stroke Participants: - History of: 1. past undiagnosed stroke (evident on neuroimaging), 2. neglect (screened with Behavioral Inattention Test), 3. apraxia, or 4. upper extremity orthopedic or muscular issues - Secondary neurologic injury or disease (e.g., Parkinson's) - Contraindication to MRI - Medical or neuropsychiatric conditions that would interfere with study outcomes, or where participation presents a risk to the subject - Enrollment in an interventional trial that supplements standard therapy Exclusion Criteria for Control Participants: • Significant upper limb neurologic or orthopedic conditions |
Country | Name | City | State |
---|---|---|---|
Canada | Carewest Dr. Vernon Fanning Centre | Calgary | Alberta |
Canada | Foothills Hospital - Main Building | Calgary | Alberta |
Canada | University of Calgary - Kinesiology Building | Calgary | Alberta |
Canada | University of Calgary - Teaching Research and Wellness (TRW) Building | Calgary | Alberta |
Lead Sponsor | Collaborator |
---|---|
University of Calgary | Canadian Institutes of Health Research (CIHR) |
Canada,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Changes in Path Deviations | Initial path deviations (IPDs) will be measured during each robotic task movement and used to measure learning in each session. | Control participant: baseline only; Stroke participant: week 1 and week 26 | |
Primary | Peak Lateral Deviations | Peak lateral deviations (PLDs) will be measured during each robotic task movement and used to measure learning in each session. | Control participant: baseline only; Stroke participant: week 1 | |
Primary | Peak Lateral Deviations | Peak lateral deviations (PLDs) will be measured during each robotic task movement and used to measure learning in each session. | Stroke participant: week 26 | |
Secondary | Robotic Assessment | The robotic assessment consists of a number of upper limb tests of neurologic function which have been validated against standard clinical measures. Tasks include: Visually Guided Reaching, Limb Position Matching, and Limb Kinesthesia. These assessments use z-scores, based on normal distributions, as a measure of performance. Scores within 1.96 standard deviations away from 0 are considered normal and scores beyond 1.96 standard deviations are considered impaired. | Control participant: baseline; Stroke participant: week 1, week 6, week 12, and week 26 | |
Secondary | Motor Learning | The average initial path deviations (IPDs) and peak lateral deviations (PLDs) across robotic adaptation trials will be used to measure the speed of learning. | Control participant: baseline only; Stroke participant: week 1 and week 26 | |
Secondary | Arm Reflexes | A measure of bicep, tricep, and brachioradialis reflexes, with scores ranging from 0 (no response) to 4+ (very brisk, hyperactive). | Stroke participant only: week 1, week 6, week 12, and week 26 | |
Secondary | Modified Ashworth Scale (MAS) | A strength scale used to assess muscle tone during flexion and extension. Scores range from 0 (no increase in tone) to 4 (affected part(s) rigid in flexion or extension), with lower scores indicating better function. | Stroke participant only: week 1, week 6, week 12, and week 26 | |
Secondary | Strength | Strength will be assessed using the Medical Research Council scale for muscles in the upper extremity. Scores range from 0 (no muscular contraction detected0 to 5 (normal muscle strength). | Stroke participant only: week 1, week 6, week 12, and week 26 | |
Secondary | Apraxia | An assessment of characteristics of limb-kinetic apraxia. Scores range from 0 to 6, with higher scores indicating better function. | Stroke participant only: week 1, week 6, week 12, and week 26 | |
Secondary | Thumb Localizing Test | A standardized assessment of proprioception. Scores range from 1 (no difficulty) to 3 (severe difficulty), with lower scores indicating better function. | Stroke participant only: week 1, week 6, week 12, and week 26 | |
Secondary | Chedoke-McMaster Stroke Assessment-Impairment Inventory | The Chedoke-McMaster is a screening and assessment tool utilized to measure physical impairment and activity of an individual following a stroke. The 15 items are scored on a 7-point scale (1 through 7, complete dependence to independent, respectively). | Stroke participant only: week 1, week 6, week 12, and week 26 | |
Secondary | Fugl-Meyer Upper Extremity Assessment (FMA) | The FMA is an evaluation of upper extremity motor impairment based on 22 items. Scores range from 0 (completely plegic) to 66 (normal). | Stroke participant only: week 1, week 6, week 12, and week 26 | |
Secondary | Functional Independence Measure (FIM) | The FIM rates individuals on 18 items across areas such as eating, grooming, bathing and dressing on a scale from 1 (total assistance needed) to 7 (complete independence). Lowest possible score is 18 (lowest independence) and the best possible score is 126 (completely independent). The FIM is the standard measure used by rehabilitation facilities in Cananda and the United States to evaluate overall function and burden of care. | Stroke participant only: week 1, week 6, week 12, and week 26 | |
Secondary | Montreal Cognitive Assessment (MoCA) | A cognitive screening test used to assess: short term memory, visuospatial abilities, executive functions, attention, concentration, working memory, language, and orientation to time and place. Higher scores indicate better function. | Stroke participant only: week 1, week 6, week 12, and week 26 | |
Secondary | Magnetic Resonance Imaging (MRI) | Structural images taken after 6-weeks post-stroke. These images will be used to document lesion location and size, and to provide underlying information about functional connections between brain structures. | Stroke participant only: week 6 | |
Secondary | Standard of Care Rehabilitation Therapy | Standard therapy doses will be based on therapist reports and random audits by a member of the study team who will, on two dates unknown to the participant and clinical staff, observe and record the timing and content of an entire therapy session. Observations will be compared to staff reports. This information will be used to verify that therapy is similar for stroke affecting the (non-)dominant arms. | Stroke participant only: two days between week 1 and week 26 |
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