Single-Armed Use of ViviGen Cellular Bone Matrix in Patients Undergoing Posterolateral Lumbar Surgery

A Prospective, Single Arm Study of Patients Undergoing Posterolateral Lumbar Fusion (Without Interbody) Supplemented With ViviGen Cellular Bone Matrix

This is a prospective, single-arm post market study of patients to assess fusion in one or multiple continuous levels of the lumbosacral spine (L1-S1) using ViviGen Cellular Bone Matrix. All subjects will be followed out to 24 months for final assessment.

Study Overview

• Status: Terminated
• Conditions: Degenerative Disc Disease; Spinal Stenosis; Spondylosis; Spondylolisthesis
• Intervention / Treatment: Other: ViviGen Cellular Bone Matrix

Detailed Description

Lumbar spine fusion rates can vary according to the surgical technique. Although many studies on spinal fusion have been conducted and reported, the heterogeneity of the study designs and data handling make it difficult to identify which approach yields the highest fusion rate. Traditional posterolateral intertransverse fusion (PLF) still remains a good procedure with acceptable fusion rates for most degenerative conditions. For solid fusion, PLF can be combined with interbody fusion to circumferentially stabilize the relevant segment, even though it is unclear whether this improves fusion rates.

A bone graft or bone graft substitute is required to produce the fusion and can be implanted on its own, in the posterolateral gutters, or contained with an interbody device using either a posterior or anterior approach. Spinal laminectomy is most often the largest generator of bone graft product due to the nature of the procedure. The current gold standard is autograft bone, in which tissue is harvested locally or from the iliac crest and is then placed at the site. However, local bone graft may be relatively limited and harvesting at the iliac crest can easily lead to significant morbidity. Complications such as inflammation, infection, and chronic pain may outlast the pain of the original surgical procedure.

Autograft is the gold standard because it possesses all of the characteristics necessary for new bone growth-namely, osteoconductivity, osteogenicity, and osteoinductivity. Allograft tissues are alternatives to autografts and are taken from donors or cadavers, circumventing some of the shortcomings of autografts by eliminating donor-site morbidity and issues of limited supply. Osteoconductivity refers to the situation in which the graft supports the attachment of new osteoblasts and osteoprogenitor cells, providing an interconnected structure through which new cells can migrate and new vessels can form. Osteogenicity refers to the situation when the osteoblasts that are at the site of new bone formation are able to produce minerals to calcify the collagen matrix that forms the substrate for new bone. Osteoinductivity refers to the ability of a graft to induce nondifferentiated stem cells or osteoprogenitor cells to differentiate into osteoblasts. Using the 2 basic criteria of a successful graft, osteoconduction and osteoinduction, investigators have developed several alternatives, some of which are available for clinical use and others of which are still in the developmental stage. Many of these alternatives use a variety of materials, including natural and synthetic polymers, ceramics, and composites, whereas others have incorporated factor- and cell-based strategies that are used either alone or in combination with other materials.

• Study Type: Interventional
• Enrollment (Actual): 21
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • Ohio
    • Columbus, Ohio, United States, 43201
      • Ohio State University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 14 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Subject is scheduled to undergo a single or multilevel posterolateral spinal fusion surgery using ViviGen Cellular Bone matrix
• Subject must be over the age of 18 years old
• Subject has been unresponsive to conservative care for a minimum of 6 months.
• The subject must in the investigator's opinion, be psychosocially, mentally, and physically able to fully comply with this protocol including the required follow-up visits, the filling out of required forms, and have the ability to understand and give written informed consent.

Exclusion Criteria:

• Subjects requiring additional bone grafting materials other than local autograft and ViviGen Cellular Bone Matrix will be excluded from this outcomes study.
• Subject has inadequate tissue coverage over the operative site
• Subject has an open wound local to the operative area, or rapid joint disease, bone absorption, or osteoporosis.
• Subject has a condition requiring medications that may interfere with bone or soft tissue healing (i.e., oral or parenteral glucocorticoids, immunosuppressives, methotrexate, etc.).
• Subject has an active local or systemic infection.
• Subject has a metal sensitivity/foreign body sensitivity.
• Subject is morbidly obese, defined as a body mass index (BMI) greater than 45.
• Subject has any medical condition or extenuating circumstance that, in the opinion of the investigator, would preclude participation in the study.
• Subject is currently involved in another investigational drug or device study that could confound study data.
• Subject has a history (present or past) of substance abuse (recreational drugs, prescription drugs or alcohol) that in the investigator's opinion may interfere with protocol assessments and/or with the subject's ability to complete the protocol required follow-up.
• Subjects who are pregnant or plan to become pregnant in the next 24 months or who are lactating.
• Subject is involved in or planning to engage in litigation or receiving Worker's Compensation related to neck or back pain.
• Osteoporosis (per the investigator's diagnosis or per a T-score > 2.5 standard deviations below the mean for a young, healthy adult) that may prevent adequate fixation of screws and thus preclude the use of a pedicle screw system.
• Subjects who have a known or suspected allergy to any of the following antibiotics and/or reagents: Gentamicin Sulfate, Meropenem, Vancomycin, Dimethyl Sulfoxide (DMSO), and Human Serum Albumin (HSA);
• Immune compromised subjects
• Known sensitivity to device materials
• Subject is a prisoner.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Study Arm; Participants will be entered into the single armed study in which one side of the fusion will be coated with milled local autograft bone and the opposite fusion side will be supplemented with an equal volume of Depuy Synthes ViviGen.	Other: ViviGen Cellular Bone Matrix; ViviGen Cellular Bone Matrix is a formulation of cryopreserved viable cortical cancellous bone matrix and demineralized bone. ViviGen is a Human Cells, Tissues, and Cellular and Tissue-based Product (HCT/P) as defined by the U.S. Food and Drug Administration in 21 CFR 1271.10

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
The Number of Surgical Levels With Successful Lumbar Fusion	Extent of fusion using the Lenke classification. Radiographic success defined as grade A, partial success grade B and radiographic failure as grades C and D.	12 months prospective from surgery

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of Participants With or Without Changes in Visual Analog Scale Pain Scores	The visual analog scale will be used to rate leg and back pain scores from 0-10, with 10 being considered the most painful.	12 months prospectively from surgery
Oswestry Disability Index (ODI) v2.1a	This survey will be used to assess how back pain affects patients' ability to function in everyday life. We will look to see if subjects' scores improve or worsen on the Oswestry Disability Index scale (ODI) which can range from 0% to 100% with higher scores indicating higher levels of disturbance in everyday life.	12 months prospectively from surgery

Collaborators and Investigators

• Sponsor: Ohio State University
• Collaborators: DePuy Synthes

Study record dates

Study Major Dates

• Study Start (Actual): February 12, 2019
• Primary Completion (Actual): January 21, 2022
• Study Completion (Actual): January 21, 2022

Study Registration Dates

• First Submitted: April 24, 2019
• First Submitted That Met QC Criteria: July 2, 2019
• First Posted (Actual): July 5, 2019

Study Record Updates

• Last Update Posted (Actual): January 24, 2024
• Last Update Submitted That Met QC Criteria: May 10, 2023
• Last Verified: May 1, 2023

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Musculoskeletal Diseases; Spinal Diseases; Bone Diseases; Spondylolysis; Intervertebral Disc Degeneration; Spinal Stenosis; Spondylosis; Spondylolisthesis
• Other Study ID Numbers: 2018H0253

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No