Degenerative Disc Disease Clinical Trial
Official title:
RAMP Study: A Prospective Randomized Study Comparing Two Lumbar Fusion Procedures
This is a post-marketing, on-label Efficacy, Effectiveness and Safety Study designed in a Multicenter, Randomized, Prospective format. This study compares two spinal fusion procedures, Transacral Interbody Fusion and Transforaminal Lumbar Interbody Fusion (TLIF). Enrollment period will be approximately 12-18 months; each Principal Investigator/Study Center will be expected to enroll up to 20 subjects. The protocol requires approximately 7 subject visits to the study center from screening through the final follow-up visit.
Study Treatment Arms:
The transacral lumbar interbody fusion (including 1L+ and 2L+) is a minimally invasive
technique that uses a transacral approach to achieve fusion at the L5-S1 or L4-L5-S1 spinal
levels. The transforaminal lumbar interbody fusion (TLIF) is performed by using a posterior
unilateral or bilateral incision in which the lumbar spine is accessed. Both study
procedures are approved for use and conform to US regulatory requirements. The study employs
these procedures and devices for uses that are consistent with their 510(k), legally
cleared, labeling.
Study Design, Objective:
The study objective is to demonstrate non-inferiority between the transacral lumbar
interbody fusion procedure and the transforaminal lumbar interbody fusion procedure (TLIF)
by meeting the primary and secondary study endpoints as listed below.
Study design, Endpoints:
Primary Endpoint:
Efficacy: Fusion of the targeted vertebral bodies (L4-L5 or L5-S1) by 24 months as
determined by Central Radiographic Reviewer's interpretation of high resolution Computed
Tomography (CT) scan.
Secondary Endpoints:
Safety: Incidence of major device-related adverse events and/or failures by 24 months,
defined as those requiring revision surgery or a secondary operation, or events resulting in
permanent disability or death.
Clinical Effectiveness: A 20% decrease in back pain compared to baseline by 24 months as
measured by the Visual Analog Scale (VAS) score.
Clinical Effectiveness: A 20% decrease in disability compared to baseline by 24 months as
measured by the Oswestry Disability Index (ODI).
Study Design, Enrollment and Analyses:
Approximately 200 subjects will be enrolled in this study and will receive one of two study
treatments in the study. The enrollment period is expected to last approximately 18 months,
with a 24 month follow up period. Approximately 15-20 sites will participate, and
Investigators must be proficient in both of the lumbar fusion procedures.
Analyses:
Eight evaluations: Pre-Operative, Operative, Discharge, and at 1, 3, 6, 12, and 24 Months.
Safety and efficacy analyses will be performed at all follow-up points during the study as
well as a final analysis when all subjects have completed the study.
;
Time Perspective: Prospective
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