Chronic Spinal Cord Injury

The goal of this clinical trial is to learn if NVG-291 can improve function in adults with chronic cervical motor-incomplete spinal cord injury. It will also learn about the safety of NVG-291. The main questions it aims to answer are: * Does NVG-291 improve hand function and daily activities? * What side effects do participants have when taking NVG-291? Researchers will compare NVG-291 to a placebo (a look-alike substance that does not contain NVG-291) to see if NVG-291 improves function in adults with chronic cervical motor-incomplete spinal cord injury. Participants will: * Take NVG-291 or a placebo by injection under the skin (subcutaneous) once daily for 12 weeks. * Attend clinic visits for checkups and safety tests. * Complete tests and questionnaires about hand function, walking, daily activities, and quality of life. * Take part in an interview about changes in their condition, within 14 days after the Week 12 visit.

The EIGER study aims to evaluate the safety and preliminary efficacy of ARC-IM Therapy (Epidural Electrical Stimulation) to support and promote recovery of ambulatory functions, such as walking, in people with subacute and chronic spinal cord injury.

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 NNI Neurosurgery team, together with our collaborators, are expanding our recruitment from our 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 neurorehabilitation to aid in improving neurological function in patients diagnosed with chronic SCI. An additional 15 patients on top of the 3 ongoing 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

This study aim to investigate the safety and exploratory efficacy of STUP-001 which is AAV-based spinal cord injury investigational product.