Wearable Robotic System and Robotic Mirror Therapy in Spastic Hemiplegia Post Botulinum Toxin Injection

NCT ID: NCT04826900

Last Updated: 2023-09-15

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

31 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-08-01

Study Completion Date

2022-01-23

Brief Summary

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The purpose of this project is to examine and compare the immediate and long-term effects of combined Botulinum toxin type A(BoNT-A) injection with wearable robotic hand system (RT) and Robotic mirror therapy (RMT) in patients with spastic hemiplegic stroke.

Detailed Description

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Spasticity, a common impairment after stroke, has a profound impact on activity and participation for patients. BoNT-A injection combined with rehabilitation training is recommended to enhance functional recovery of patients with spastic hemiplegic stroke.

Patients with spasticity usually have lower motor function and worse sensory deficits than patients without spasticity. Designing the post BoNT-A injection rehabilitation program should consider the above issues. RT and MT are two interventions providing sensorimotor input for patient with low motor function. Combining both approaches (wearing robotic hand to do mirror therapy) might facilitate the sensorimotor cortex that controls movement and might augment somatosensory input and further treatment efficacy. It is unknown whether and how combining BoNT injection with bilateral RT vs with MT vs with RMT engenders differential effects on motor and related functional performance in patients with spastic hemiplegic stroke.

Forty-eight participants with chronic spastic hemiplegic stroke will be recruited and randomly assigned to one of 2 groups: RT, and RMT. All the post- injection interventions will be implemented 60 minutes/day, 3 days/week, for 8 weeks. At each training session all patients will receive 45-minute RT, or RMT, then 15-minute functional task training.

The outcome measures include 1) body function and structures: Fugl-Meyer Assessment, Modified Ashworth Scale, Medical Research Council scale, 2) activity and participation: Box and block test, Motor Activity Log, and Nottingham Extended Activities of Daily Living Scale, Action Research Arm Test. In addition, to directly reflect a patient's unique needs and goals, Goal Attainment Scaling will be assessed. Electroencephalography (EEG) and functional near infrared reflectance spectroscopy (NIRS) assessments will be done to assess the neurophysiologic effects of the 3 kinds of intervention. The outcome will be measured at pre-treatment,1-week after BoNT-A injection, post-treatment, and 3-month follow- up.

Conditions

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Hemiplegia, Spastic Spastic

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants
There will be a research code representing patients' identity, this code will not show patients' name, social security number, and home address. For the results of patients' visit and the diagnosis, the study moderator will maintain a confidential attitude and be careful to maintain patients' privacy.

Study Groups

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Robotic Group

Training session included 45 minutes Robotic Therapy, followed by 15-minute functional training. The robotic group will receive 3 sessions per week, for 8 weeks.

Group Type EXPERIMENTAL

BoNT-A injections

Intervention Type PROCEDURE

Botox brand BoNT-A Purified Neurotoxin Complex, (Allergan Pharmaceuticals, Irvine, CA) will be prepared by diluting lyophilized toxin with 0.9% saline to a concentration of 33-100 U/ml. depending on the size of the target muscle. Location of the targeted muscle will be confirmed by using echo guide. The total dose range is 200 units to 500 units. The dose range of each target muscle is as below: 20 and 75 units for flexor carpi ulnaris and flexor carpi radials; 12.5-35 units per fascicle in the flexor digitorum sublimis and flexor digitorum profundus (maximum dose: 120 units for each of these muscles); 10-35 units in the flexor pollicis longus; 25-100 units in the brachioradial ; 50-200 units in the biceps brachii; and 25-75 units in the pronator teres

Robotic therapy (RT)

Intervention Type OTHER

A wearable robotic hand system will be used in this study. The robotic hand system consisted with a wearable exoskeletal hand, sensor glove, and a control box. On the exoskeletal hand, there are five actuators on each of finger structure that can provide external power to bring individual finger moving. The sensor glove has five sensors that can detect the finger's posture during movement and then manipulates exoskeletal hand via the control box. The patient's unaffected hand wears the sensor glove, the affected hand wears the wearable exoskeleton hand, and the unaffected hand does the certain transitive and intransitive tasks as the mirror group, and then makes the affected hand do the same movements driven by the exoskeleton robotic hand.

Functional task training

Intervention Type OTHER

After either 45 minutes of RT or RMT, all participants receive 15 minutes of training in functional tasks. The functional tasks included taking up and holding bowl or using eating utensils , bringing a cup for drinking, drying sucks by clips, open ing or closing door , turning on or off the light, cleaning the table or window and so on . The functional tasks training will be bases on the needs and ability of patients.

Robotic Mirror Group

Training session included 45 minutes Robotic Mirror Therapy, followed by 15-minute functional training. The robotic group will receive 3 sessions per week, for 8 weeks.

Group Type EXPERIMENTAL

BoNT-A injections

Intervention Type PROCEDURE

Botox brand BoNT-A Purified Neurotoxin Complex, (Allergan Pharmaceuticals, Irvine, CA) will be prepared by diluting lyophilized toxin with 0.9% saline to a concentration of 33-100 U/ml. depending on the size of the target muscle. Location of the targeted muscle will be confirmed by using echo guide. The total dose range is 200 units to 500 units. The dose range of each target muscle is as below: 20 and 75 units for flexor carpi ulnaris and flexor carpi radials; 12.5-35 units per fascicle in the flexor digitorum sublimis and flexor digitorum profundus (maximum dose: 120 units for each of these muscles); 10-35 units in the flexor pollicis longus; 25-100 units in the brachioradial ; 50-200 units in the biceps brachii; and 25-75 units in the pronator teres

Robotic mirror therapy (RMT)

Intervention Type OTHER

Wearable robotic hand system and mirror system will be used in this group.. The patients in the group will wear the robotic hand to do the mirror therapy. The patient's unaffected hand wears the sensor glove, the affected hand wears the wearable exoskeletal hand, a mirror box with a mirror will be placed in the patient 's midsagittal plane beside the unaffected hand to block his or her view of the affected hand. The patient's unaffected hand does the certain transitive and intransitive tasks and the patient will be instructed to look at the reflection of the unaffected hand in the mirror as if it is the affected hand (the visual input). At the same time the affected hand will be passively moved by the exoskeleton robotic hand which is under the .control of the unaffected hand.

Functional task training

Intervention Type OTHER

After either 45 minutes of RT or RMT, all participants receive 15 minutes of training in functional tasks. The functional tasks included taking up and holding bowl or using eating utensils , bringing a cup for drinking, drying sucks by clips, open ing or closing door , turning on or off the light, cleaning the table or window and so on . The functional tasks training will be bases on the needs and ability of patients.

Interventions

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BoNT-A injections

Botox brand BoNT-A Purified Neurotoxin Complex, (Allergan Pharmaceuticals, Irvine, CA) will be prepared by diluting lyophilized toxin with 0.9% saline to a concentration of 33-100 U/ml. depending on the size of the target muscle. Location of the targeted muscle will be confirmed by using echo guide. The total dose range is 200 units to 500 units. The dose range of each target muscle is as below: 20 and 75 units for flexor carpi ulnaris and flexor carpi radials; 12.5-35 units per fascicle in the flexor digitorum sublimis and flexor digitorum profundus (maximum dose: 120 units for each of these muscles); 10-35 units in the flexor pollicis longus; 25-100 units in the brachioradial ; 50-200 units in the biceps brachii; and 25-75 units in the pronator teres

Intervention Type PROCEDURE

Robotic therapy (RT)

A wearable robotic hand system will be used in this study. The robotic hand system consisted with a wearable exoskeletal hand, sensor glove, and a control box. On the exoskeletal hand, there are five actuators on each of finger structure that can provide external power to bring individual finger moving. The sensor glove has five sensors that can detect the finger's posture during movement and then manipulates exoskeletal hand via the control box. The patient's unaffected hand wears the sensor glove, the affected hand wears the wearable exoskeleton hand, and the unaffected hand does the certain transitive and intransitive tasks as the mirror group, and then makes the affected hand do the same movements driven by the exoskeleton robotic hand.

Intervention Type OTHER

Robotic mirror therapy (RMT)

Wearable robotic hand system and mirror system will be used in this group.. The patients in the group will wear the robotic hand to do the mirror therapy. The patient's unaffected hand wears the sensor glove, the affected hand wears the wearable exoskeletal hand, a mirror box with a mirror will be placed in the patient 's midsagittal plane beside the unaffected hand to block his or her view of the affected hand. The patient's unaffected hand does the certain transitive and intransitive tasks and the patient will be instructed to look at the reflection of the unaffected hand in the mirror as if it is the affected hand (the visual input). At the same time the affected hand will be passively moved by the exoskeleton robotic hand which is under the .control of the unaffected hand.

Intervention Type OTHER

Functional task training

After either 45 minutes of RT or RMT, all participants receive 15 minutes of training in functional tasks. The functional tasks included taking up and holding bowl or using eating utensils , bringing a cup for drinking, drying sucks by clips, open ing or closing door , turning on or off the light, cleaning the table or window and so on . The functional tasks training will be bases on the needs and ability of patients.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Clinical and imagine diagnosis of a first or recurrent unilateral stroke ≥ 3 months
* Finger flexor muscles spasticity (modified Ashworth scale of ≥ 1+)
* Initial motor part of UE of FMA score ranging from 10 to 56 indicating moderate to severe movement impairment
* No serious cognitive impairment (i.e., Mini Mental State Exam score \> 20)
* Age ≥ 20 years

Exclusion Criteria

* Pregnant
* With bilateral hemispheric or cerebellar lesions
* Sever aphasia
* Significant visual field deficits or hemineglect
* Contraindication for BoNT-A injection
* Treatment with BoNT-A within 6 months before recruitment
* Any fixed joint contracture of the affected upper limb
* A history of orthopedic or other neurological diseases and/or medical conditions that would prevent adherence to the rehabilitation protocol
Minimum Eligible Age

20 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Chang Gung Memorial Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Hung Jen-Wen

Role: PRINCIPAL_INVESTIGATOR

Chang Gung Memorial Hospital-Kaohsiung Medical Center

Locations

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Department of Rehabilitation, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Kaohsiung, Taiwan

Kaohsiung City, , Taiwan

Site Status

Countries

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Taiwan

References

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Document Type: Study Protocol and Statistical Analysis Plan

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NRMPG8J0211

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Identifier Source: org_study_id

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