Subjects in the Scaffold Arm will have the Scaffold implantation immediately following standard of care open spine surgery.

Subjects in the Comparator Arm will have standard of care open spine surgery and will not receive the Scaffold.

Injury, Spinal Cord

The investigational product ("Neuro-Spinal ScaffoldTM" or "Scaffold") is a porous bioresorbable polymer scaffold comprised of a synthetic biomaterial, poly(lactic-co-glycolic acid)-b-poly(L-lysine) (PLGA-PLL). The Scaffold is cylindrical in shape (3 mm diameter) and is available is three lengths (6 mm, 8 mm, 10 mm) for optimal fit in the intraspinal lesion cavity.
Based upon pre-clinical testing, the Scaffold is expected to be resorbed from the site of implant within 4 to 8 weeks.

Neuro-Spinal Scaffold

UC Davis Medical Center

University of California San Diego

University of Colorado Memorial Hospital Central

University of Iowa

University of Maryland Medical Center

Brigham and Women's Hospital

Elmhurst Hospital Center

Icahn School of Medicine at Mount Sinai

Vidant Medical Center

Oregon Health & Science University

Penn Presbyterian Medical Center

Thomas Jefferson University

University of Pittsburgh Medical Center-Presbyterian

Rhode Island Hospital

Medical College of Wisconsin

Study of Probable Benefit of the Neuro-Spinal Scaffold™ in Subjects With Complete Thoracic AIS A Spinal Cord Injury as Compared to Standard of Care

Randomized, Controlled, Single-blind Study of Probable Benefit of the Neuro-Spinal Scaffold™ for Safety and Neurologic Recovery in Subjects With Complete Thoracic AIS A Spinal Cord Injury as Compared to Standard of Care

The proportion of subjects with an improvement of at least one AIS grade will be presented for each study arm.
The International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI) examinations determine the ASIA Impairment Scale (AIS) grade.

The ISNCSCI examinations determine the the Neurological Level of Injury (NLI). The NLI refers to the most caudal segment of the spinal cord with normal sensory and antigravity motor function on both sides of the body, provided that there is normal (intact) sensory and motor function rostrally.
NLI will be summarized for each study arm at visits (pre-surgery, 3-months, 6-months, 12-months, 24-months). Observed values and change from the baseline will be presented for each study arm.The ISNCSCI exam performed within 8 hours prior to surgery (pre-surgery ISNCSCI) will be used as the baseline.

A numerical summary score of motor function in each extremity determined by the International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI) examination. This score can reflect the degree of neurological impairment associated with the SCI, with lower score indicating greater impairment. Score ranges from 0-25 for each extremity, with maximum scores of 50 for the upper limbs and 50 for the lower limbs.
Motor scores will be summarized for each study arm at visits (pre-surgery, 3-months, 6-months, 12-months, 24-months). Observed values and change from the baseline will be presented for each study arm.The ISNCSCI exam performed within 8 hours prior to surgery (pre-surgery ISNCSCI) will be used as the baseline.

A numerical summary score of sensory function in each determined by the International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI) examination. This score can reflect the degree of neurological impairment associated with the SCI, with lower score indicating greater impairment. Score ranges from 0-56 points each for light touch and pin prick (sharp/dull discrimination) modalities, with a maximum total score of 112 points per side of the body.
Observed values and change from the baseline will be presented for each study arm.The ISNCSCI exam performed within 8 hours prior to surgery (pre-surgery ISNCSCI) will be used as the baseline.

Bladder, bowel and sexual function will be assessed using the Lower Urinary Tract, Bowel and Sexual Function System/Organ section of the ASIA Autonomic Standards Assessment Form. The Autonomic Standards Assessment Form has three questions in each category (Lower Urinary Tract or bladder, Bowel, Sexual Function) and each question is scored on a scale from 0 (complete loss of control) - 2 (normal function). Observed values and change from baseline will be presented for each study arm. The hospital discharge visit will be used as the baseline visit.

Spinal cord dimensions (above, at, and below level of injury) will be assessed by an independent board-certified neuroradiologist central reader. Observed values and change from baseline will be presented for each study arm. The Screening MRI will be used as the baseline.

Lesion size (in mm) will be assessed by an independent board-certified neuroradiologist central reader. Observed values and change from baseline will be presented for each study arm. The Screening MRI will be used as the baseline.

Lesion Location will be assessed by an independent board-certified neuroradiologist central reader. Observed values and change from baseline will be presented for each study arm. The Screening MRI will be used as the baseline.

Cyst presence or absence will be assessed by an independent board-certified neuroradiologist central reader. Observed values and change from baseline will be presented for each study arm. The Screening MRI will be used as the baseline.

Cyst size, if present, will be assessed by an independent board-certified neuroradiologist central reader. Observed values and change from baseline will be presented for each study arm. The Screening MRI will be used as the baseline.

Cyst location, if present, will be assessed by an independent board-certified neuroradiologist central reader. Observed values and change from baseline will be presented for each study arm. The Screening MRI will be used as the baseline.

InVivo Therapeutics

Subjects will be randomized in a blinded manner to one of two study arms, the Treatment or "Scaffold" Arm and the Standard of Care or "Comparator" Arm. Subjects in the Scaffold Arm will have the Scaffold implantation immediately following standard of care open spine surgery. Subjects in the Comparator Arm will have standard of care open spine surgery and will not receive the Scaffold.

Subjects will be randomized in a blinded manner to one of two study arms, the Treatment or "Scaffold" Arm and the Standard of Care or "Comparator" Arm. Subjects in the Scaffold Arm will have the Scaffold implantation immediately following standard of care open spine surgery. Subjects in the Comparator Arm will have standard of care open spine surgery and will not receive the Scaffold. The subjects will be blinded to their study arm for the duration of the study.

glycolic acid/dental caries

Study of Probable Benefit of the Neuro-Spinal Scaffold™ in Subjects With Complete Thoracic AIS A Spinal Cord Injury as Compared to Standard of Care

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