A Study of Infuse® Bone Graft With Mastergraft® Strip and Posterior Fixation for Posterolateral Fusion (PLF) Treatment of Multi-Level Degenerative Lumbosacral Spinal Conditions

NCT ID: NCT03118505

Last Updated: 2026-01-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

NA

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-06-29

Study Completion Date

2026-12-31

Brief Summary

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The purpose of this study is to obtain safety and effectiveness data on the investigational device for multi-level PLF procedures and determine the most appropriate rhBMP-2 dose for use in this indication. The study information may be used for a potential pivotal study design.

Detailed Description

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Conditions

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Multi-Level Degenerative Lumbosacral Spinal Conditions

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Group 1

Infuse Bone Graft \[4.2 mg per operative level\] + Mastergraft Strip + local bone autograft + posterior fixation

Group Type EXPERIMENTAL

Infuse Bone Graft

Intervention Type DEVICE

Infuse Bone Graft + Mastergraft Strip + local bone autograft + posterior fixation

Group 2

Infuse Bone Graft \[6 mg per operative level\] + Mastergraft Strip + local bone autograft + posterior fixation

Group Type EXPERIMENTAL

Infuse Bone Graft

Intervention Type DEVICE

Infuse Bone Graft + Mastergraft Strip + local bone autograft + posterior fixation

Group 3

Infuse Bone Graft \[12 mg per operative level\] + Mastergraft Strip + local bone autograft + posterior fixation

Group Type EXPERIMENTAL

Infuse Bone Graft

Intervention Type DEVICE

Infuse Bone Graft + Mastergraft Strip + local bone autograft + posterior fixation

Control

Medtronic DBM + local bone autograft (and supplemented with iliac crest bone graft (ICBG), if needed) + posterior fixation.

Group Type ACTIVE_COMPARATOR

Medtronic DBM

Intervention Type DEVICE

Medtronic DBM + local bone autograft (and supplemented with iliac crest bone graft (ICBG), if needed) + posterior fixation

Interventions

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Infuse Bone Graft

Infuse Bone Graft + Mastergraft Strip + local bone autograft + posterior fixation

Intervention Type DEVICE

Medtronic DBM

Medtronic DBM + local bone autograft (and supplemented with iliac crest bone graft (ICBG), if needed) + posterior fixation

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

1. Degenerative lumbar spine condition:

1. Requiring a PLF procedure using a bilateral metallic screw and rod system in 2-4 consecutive levels from L2-S1; and
2. Diagnosed with: instability (up to and including Grade 2 spondylolisthesis, retrolisthesis, or lateral listhesis), stenosis with documented pre-operative instability, and/or recurrent disc herniation, any of which may have possible concomitant lumbar degenerative deformity (Cobb angle ≤ 30 degrees).
2. Preoperative ODI score ≥40.
3. Preoperative pain score of ≥8 (out of 20) on the Preoperative Leg Pain Questionnaire.
4. Most inferior treated spinal level is able to accommodate an interbody fusion device.
5. ≥21 years of age at the time of signing the informed consent.
6. Failed ≥6 months non-operative treatment (e.g., bed rest, physical therapy, medications, spinal injections, manipulation, and/or TENS).
7. Is willing and able to comply with the study plan and able to understand and sign the Subject Informed Consent Form.

Exclusion Criteria

1. Prior spinal fusion surgical procedure at the involved or adjacent spinal levels. (Prior non-fusion surgery at the target levels, including discectomy and/or single-level foraminotomy or laminectomy, is allowed.)
2. Prior lumbar disc arthroplasty.
3. Significant lumbar instability, defined as sagittal listhesis \>Grade 2 at any involved level using Meyerding's Classification or lateral listhesis \>25% lateral translation at any involved level.
4. Planned use of an internal or external bone growth stimulator.
5. Lumbar scoliosis \>30 degrees.
6. Osteoporosis to a degree that spinal instrumentation is contraindicated or a history of atraumatic vertebral fracture.
7. Morbidly obese, as defined by a Body Mass Index (BMI) \>40.
8. Presence of active malignancy or prior history of malignancy.
9. Overt or active bacterial infection, either local or systemic.
10. Has undergone systemic administration of any type of corticosteroid, anti-neoplastic, immunostimulating, or immunosuppressive agents within 30 days prior to implantation of the assigned treatment.
11. Comorbidities precluding subject from being a surgical candidate.
12. History of autoimmune disease known to affect bone metabolism or the spine (e.g., spondyloarthropathies, juvenile arthritis, rheumatoid arthritis, Graves' disease, Hashimoto's thyroiditis).
13. History of any endocrine or metabolic disorder known to affect osteogenesis (e.g., Paget's disease, renal osteodystrophy, Ehlers-Danlos syndrome, or osteogenesis imperfecta).
14. History of exposure to any recombinant proteins used for bone formation (i.e., Infuse Bone Graft, OP-1 Putty, OP-1 Implant, AUGMENT Bone Graft, GEM21S, i-FACTOR Peptide Enhanced Bone Graft, or PepGen P-15 Synthetic Bone Graft).
15. Hypersensitivity or allergy to any components of the study treatments including, but not limited to, bone morphogenetic proteins (BMPs); injectable collagen; protein pharmaceuticals (e.g., monoclonal antibodies or gamma globulins); bovine collagen products; gentamicin or glycerol (which may be present in trace amounts in the DBM products); and/or instrumentation materials (titanium, titanium alloy, cobalt chrome, cobalt chrome alloy, or polyetheretherketone \[PEEK\]).
16. History of any allergy resulting in anaphylaxis.
17. Is a prisoner.
18. Is mentally incompetent. If questionable, obtain psychiatric consult.
19. Treatment with an investigational therapy (drug, device, and/or biologic) within 30 days prior to implantation surgery, or such treatment is planned during the 24-month period following implantation of the study treatment.
20. Pregnant or nursing. Females of child-bearing potential must agree not to become pregnant for one year following surgery.
21. Any condition that would interfere with the subject's ability to comply with study instructions, might confound the interpretation of the study, or put the subject at risk.
Minimum Eligible Age

21 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Medtronic Spinal and Biologics

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Chetan Patel

Role: PRINCIPAL_INVESTIGATOR

Spine Health Institute

Locations

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University of California, Davis

Sacramento, California, United States

Site Status

Spine Colorado

Durango, Colorado, United States

Site Status

The Steadman Clinic

Vail, Colorado, United States

Site Status

The Spine Health Institute

Altamonte Springs, Florida, United States

Site Status

Foundation for Orthopedic Research and Education

Tampa, Florida, United States

Site Status

Emory University

Atlanta, Georgia, United States

Site Status

Indiana Spine Group

Carmel, Indiana, United States

Site Status

Fort Wayne Orthopedics

Fort Wayne, Indiana, United States

Site Status

The University of Kansas (KUMC)

Kansas City, Kansas, United States

Site Status

Bronson Methodist Hospital

Kalamazoo, Michigan, United States

Site Status

Upstate Orthopedics

East Syracuse, New York, United States

Site Status

New York-Presbyterian Hospital/Columbia University

New York, New York, United States

Site Status

The Ohio State University Wexner Medical Center

Columbus, Ohio, United States

Site Status

Seton Spine & Scoliosis Center

Austin, Texas, United States

Site Status

American Neurospine Institute PLLC

Plano, Texas, United States

Site Status

University of Virginia Health System

Charlottesville, Virginia, United States

Site Status

University of Virginia

Charlottesville, Virginia, United States

Site Status

Countries

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United States

Other Identifiers

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P16-03

Identifier Type: -

Identifier Source: org_study_id

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