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Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT04688229
Other study ID # hummingbird
Secondary ID
Status Not yet recruiting
Phase N/A
First received
Last updated
Start date October 20, 2021
Est. completion date May 27, 2022

Study information

Verified date September 2021
Source Shirley Ryan AbilityLab
Contact Connie Casale
Phone 312-238-1522
Email ccasale@sralab.org
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This study will use evaluate a hand therapy device training isolated finger control with engaging video gaming technology to facilitate hand and digit recovery in patients with acute stroke and cervical spinal cord injury. This study will randomize patients to either standard rehabilitation care with added study-related motor training or standard rehabilitation care alone.


Description:

The purpose of this project is to develop a usable bedside hand therapy device that that takes advantage of early neuroplasticity following stroke and cervical spinal cord injury (SCI), to retrain functionally relevant movement in individual fingers of the neurologically impaired hand. It is well established in neuroscience that neural recovery and neuroplasticity at the level of cortex in animals and humans is dependent on active motor practice. In this pilot project the investigators will determine and assure that this second-generation device, which has not yet been used in humans, is usable in the clinical setting and that patients with stroke and cervical SCI find it a meaningful tool for relearning hand movement. The investigators will also assess whether use of the device daily for 2 weeks results in improved functional hand use, improve finger strength and improved ability to control individual finger movements. Although these abilities are foundational to functional manipulation of objects with the hand, there is presently no specific therapeutic interventions, nor time available in conventional early (acute) rehabilitation to address these goals. Thus, early intensive hand recovery is an obvious but unmet need in neurorehabilitation. The goals for this one-year project are determine if the device: 1. can facilitate improve hand function. 2. can improve finger strength and individuation. 3. is usable in a clinical setting and serves as a meaningful therapy tool to patients with stroke and cervical SCI. If successful, this project will lead to a refined therapy protocol in preparation for a larger clinical trial to establish efficacy of this training approach for both stroke and cervical spinal cord injury. Both stroke and SCI populations were chosen as this tool could potentially have benefit for both groups. In addition, studying both patient populations provides generalizability to a wider group of individuals needing rehabilitation. If outcomes are suggestive of efficacy this device will evaluated in a large multi-center pivotal trial in preparation for transition to the clinical marketplace as new rehabilitation technology that has proven scientific evidence supporting its efficacy in early hand rehabilitation.


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 24
Est. completion date May 27, 2022
Est. primary completion date February 27, 2022
Accepts healthy volunteers No
Gender All
Age group 18 Years to 90 Years
Eligibility Inclusion Criteria: SCI patients 1. Male and females between ages 18-75 years 2. Within 1-2 months after traumatic SCI 3. Cervical injury at C8 or above (tetraplegia) 4. Categorized by the American Spinal Cord Injury Impairment Scale (AIS) as AIS A, B, C and D. Individuals with AIS A and B will be included if they score a minimum of 1 on the "Prehension Ability" GRASSP and are able to generate 0.01N with at least one finger in dominant or non-dominant hand using the Hummingbird device. 5. Intact (level 2), impaired (level 1) or absent (level 0) lower motor neuron innervations in dermatomes C6, C7 and C8 during light touch and pin prick stimulus using the ISNCSCI sensory scores, and Stroke patients 1. Males and females between ages 18-90 years 2. Within 1 month after anterior circulation ischemic stroke 3. Ability to score a minimum of 1 on the "Prehension Ability" GRASSP and are able to generate 0.01N with at least one finger in hemiparetic hand using the Hummingbird device. 4. Ability to initiate elbow flexion and extension in hemiparetic arm with gravity removed. 6. Ability to perform reaching movements towards an object at a 8 cm distance in front and above. Exclusion Criteria: SCI patients 1. Uncontrolled medical problems including pulmonary, cardiovascular or orthopedic disease 2. Any debilitating disease prior to the SCI that caused exercise intolerance 3. Other neurological injury affecting target arm and hand 4. Fracture or soft tissue injury to target arm and hand 5. A pain scored greater than 3 on a 10 point scale at rest in target arm and hand 6. Premorbid, ongoing major depression or psychosis, altered cognitive status 7. History of head injury or stroke 8. Ongoing cord compression or a syrinx in the spinal cord or who suffer from a spinal cord disease such as spinal stenosis, spina bifida or herniated cervical disk. Stroke patients 1. Uncontrolled medical problems including pulmonary, cardiovascular or orthopedic disease 2. Any debilitating disease prior to the stroke that caused exercise intolerance 3. Other neurological injury affecting target arm and hand 4. Fracture or soft tissue injury to target arm and hand 5. Pain scored greater than 3 on a 10 point scale at rest in target arm and hand 6. Premorbid, ongoing major depression or psychosis, altered cognitive status 7. Inability to follow a three-step command.

Study Design


Intervention

Device:
Hummingbird hand training device plus standard of care rehabilitation
The Hummingbird is a comprehensive hardware and software platform that isolates the hand, wrist, and forearm in a neutral and comfortable position, allowing linear force and angular torque to be measured at the finger-tips between 0-10 Newtons at milli-newton resolution at 100 Hz per digit, in 5 degrees of freedom simultaneously, in real-time, for all 5 digits. The platform allows isolating and characterizing fine resolution forces with sufficient sensitivity and resolution to record data in severe paralysis. The platform also comprises therapeutic software to train exploratory, individuated, and inter-digit complex finger movements by coupling force and torque output to NeuroAnimation physics-based virtual interface in engaging therapeutic experiences.
Other:
Comparison (sham) intervention
During each hour of sham therapy the therapist will select cognitive tasks (e.g. puzzles and games) targeted to a level of difficulty based on the subjects ability. No grasping or object manipulation using the target upper limb will be included in this intervention. Rather, the participant will use either the unaffected limb (or non-targeted limb for SCI subjects) as needed for any particular puzzle or game.

Locations

Country Name City State
n/a

Sponsors (2)

Lead Sponsor Collaborator
Shirley Ryan AbilityLab Johns Hopkins University

Outcome

Type Measure Description Time frame Safety issue
Other Maximum voluntary force (MVF) by each of 5 digits participants are asked to depress one ?nger at a time with maximum strength, and to maintain this force level for 2 seconds (measured in Newtons) Baseline, 72 hours post-treatment, 2 weeks post treatment, and 3 months post treatment
Other Average strength index all digits the average force for all 5 digits. All MVF values are normalized by the MVF of the non-targeted hand (measured in Newtons) Baseline, 72 hours post-treatment, 2 weeks post treatment, and 3 months post treatment
Other Individuation index participants press only one ?nger at a sub-MVF force level while at the same time keeping other ?ngers immobile on the keys. Four target force levels are tested for each ?nger: 20 percent, 40 percent, 60 percent, and 80 percent of MVF. Higher index scores indicate better finger individuation. Baseline, 72 hours post-treatment, 2 weeks post treatment, and 3 months post treatment
Primary Graded and Redefined Assessment of Strength, Sensibility, and Prehension (GRASSP) measure Hand function test with 5 subtests including dorsal sensation (score 0-12), palmer sensation (score 0-12), strength (score 0-50), prehension ability (score 0-12) and prehension performance (score 0-30). Higher scores indicate better performance. Baseline,72 hours Post-treatment, 2 weeks post treatment, and 3 months post treatment
Secondary Action research arm test (ARAT) 19-item measure divided into 4-subtests (grasp, grip, pinch, and gross arm movement). Scored 0-57 with higher score indicating better performance. Baseline, 72 hours post-treatment, 2 weeks post treatment, and 3 months post treatment
Secondary Box and Block test Number of 2.5 cm cubes transferred over a partition in 60 seconds Baseline, 72 hours post-treatment, 2 weeks post treatment, and 3 months post treatment
Secondary Usability of the device (Intervention group only) Finger strikes will be counted in each session. Usability will be defined by an increase of 50% or more of finger strikes per session over 10 treatment sessions First day of treatment through 10th day of treatment (last treatment)
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