Clinical trial NCT05644171: RESTORES Trial: RESToration Of Rehabilitative Function With Epidural Spinal Stimulation
Official title: RESTORES Trial: RESToration Of Rehabilitative Function With Epidural Spinal Stimulation
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: NA
Conditions: Chronic Spinal Cord Injury
Keywords: Spinal cord injury
Epidural spinal stimulation
Implantation
Lead sponsor: National Neuroscience Institute
Sponsor class: OTHER
Collaborators: name: Agency for Science, Technology and Research
name: Tan Tock Seng Hospital
First posted: 2022-12-09
Enrollment: 3
Sex: ALL
Minimum age (years): 21
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: Spinal Cord Injury (SCI), being a devastating diagnosis, has little to no recovery which leads to a long-standing of debilitating impairment for affected patients. The National Neuroscience Institute (NNI) Neurosurgery team, together with our collaborators, will be embarking on a new clinical pilot trial named RESTORES: RESToration of Rehabilitative function with Epidural Spinal Stimulation. This study aims to investigate the feasibility of electrical stimulation via a spinal cord stimulator (SCS), which will be implanted into the study subjects, and advanced robotic neuro-rehabilitation to aid in improving neurological function in patients diagnosed with chronic SCI. A total of 3 patients, male and female participants, above the age of 21 who have been diagnosed with the condition for more than a year will be recruited for this study over a 2-year period. Rehab sessions will take place pre and post-surgical implant, assessing subject improvements.

Detailed description: Motor complete SCI is defined as American Spinal Injury Association (ASIA) impairment Grade A or B, with no motor function preserved below the level of injury. This in-turn results in significant catastrophic dysfunction and disability to the individual's physical and mental health, reducing quality of life and increasing caregiver burden which translates to high socioeconomic costs. The current treatments for chronic SCI involves aggressive rehabilitation to maximize residual neurological function and devices to compensate for neurological loss. However, neurological improvement is dismal, with 94.4% of patients demonstrating no neurological improvement 5-years post-injury. Experimental and electrophysiological observations revealed that spinal networks have the capacity to generate basic locomotor rhythmicity without supraspinal input to the cord. SCS, consisting of a small array of electrodes surgically implanted into the spinal epidural space stimulates afferent sensory pathways in specific patterns to drive voluntary and autonomically controlled motor responses. Activity-based training in conjunction with SCS has been shown to bolster neuroplasticity and recovery caudal to the injury site. The investigators aim to deliver epidural spinal stimulation via an implanted SCS and together with personalized advanced neuro-rehabilitation to study the improvement of neurological function after chronic SCI.

Eligibility criteria: ⦁ Inclusion Criteria

For inclusion in the study, the potential patient has to fulfil all of the following criteria:

1. 21 years old and older
2. Chronic (greater than one year) motor complete (AIS classification A or B) SCI
3. Spinal injury between the levels of Thoracic 2 (T2) to Lumbar 1 (L1)
4. Segmental reflexes that remain functional below the level of lesion
5. Able to perform the perioperative rehabilitation program as judged by the research team

   * Exclusion Criteria

Potential patients will be excluded from the trial if they fulfil any of the following criteria:

1. Significant medical co-morbidities that would significantly increase the risk of the operation
2. Severe dysautonomia with systolic blood pressure fluctuation less than 50 or more than 200mmHg on tilt table testing
3. Painful musculoskeletal dysfunction, contractures, unhealed fractures, pressure sores, severe spasticity, and osteoporosis
4. Significant psychological issues or ongoing drug abuse
5. Pregnancy and lactating patients
6. Progressive spinal cord disease

Primary outcomes:
measure: Number of participants with treatment-related adverse events assessed by CTCAE v5.0
timeFrame: 6 months
Secondary outcomes:
measure: Assessing the improvement in motor outcomes post surgical implantation
timeFrame: 2 years
measure: Assessing autonomic function post surgical implantation
timeFrame: 2 years
Other outcomes:
Locations:
city: Singapore
country: Singapore
facility: National Neuroscience Institute
Study officials:
References:
citation: Kirshblum S, Millis S, McKinley W, Tulsky D. Late neurologic recovery after traumatic spinal cord injury. Arch Phys Med Rehabil. 2004 Nov;85(11):1811-7. doi: 10.1016/j.apmr.2004.03.015.
citation: Minassian K, Jilge B, Rattay F, Pinter MM, Binder H, Gerstenbrand F, Dimitrijevic MR. Stepping-like movements in humans with complete spinal cord injury induced by epidural stimulation of the lumbar cord: electromyographic study of compound muscle action potentials. Spinal Cord. 2004 Jul;42(7):401-16. doi: 10.1038/sj.sc.3101615.
citation: Lim PA, Tow AM. Recovery and regeneration after spinal cord injury: a review and summary of recent literature. Ann Acad Med Singap. 2007 Jan;36(1):49-57.
citation: Minassian K, Persy I, Rattay F, Pinter MM, Kern H, Dimitrijevic MR. Human lumbar cord circuitries can be activated by extrinsic tonic input to generate locomotor-like activity. Hum Mov Sci. 2007 Apr;26(2):275-95. doi: 10.1016/j.humov.2007.01.005. Epub 2007 Mar 6.
citation: Teo SH, Sew S, Backman C, Forwell S, Lee WK, Chan PL, Dean E. Health of people with spinal cord injury in Singapore: implications for rehabilitation planning and implementation. Disabil Rehabil. 2011;33(15-16):1460-74. doi: 10.3109/09638288.2010.533812. Epub 2010 Nov 20.