INFUSE®Bone Graft in Transforaminal Lumbar Interbody Fusion for Degenerative Disease of Lumbosacral Spine (TLIF)

This study has been terminated.
(Due to study design challenges including DMC enrollment suspension as required by the protocol stopping rules and recommended changes to the surgical technique)
Information provided by (Responsible Party):
Medtronic Spinal and Biologics Identifier:
First received: August 10, 2011
Last updated: September 25, 2015
Last verified: September 2015
This investigation will provide safety and effectiveness information on the use of INFUSE® Bone Graft with the CAPSTONE® Spinal System and CD HORIZON® Spinal System with a Transforaminal Lumbar Interbody Fusion (TLIF) surgical approach at one or two adjacent levels from L2-S1 to treat subjects with advanced degenerative disease of the lumbosacral spine.

Condition Intervention Phase
Lumbar Spine Degeneration
Device: INFUSE Bone Graft
Other: Iliac Crest Bone Graft
Phase 3

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Prospective, Multi-center, Pivotal Trial for INFUSE® Bone Graft With CAPSTONE® Spinal System and Posterior Supplemental Fixation to Treat 1- or 2-level Advanced Degenerative Disease of the Lumbosacral Spine For a TLIF Approach

Resource links provided by NLM:

Further study details as provided by Medtronic Spinal and Biologics:

Primary Outcome Measures:
  • Rate of Overall Success [ Time Frame: 24 months ] [ Designated as safety issue: Yes ]

    Rate of overall success is reported as percent of subjects who met all of the following criteria:

    1. fusion at all treated levels (e.g., one level for a one level fusion and two levels for a two level fusion);
    2. pain/disability (Oswestry Disability Index) success;
    3. neurological status success;
    4. no serious adverse event classified as "implant associated" or "implant/surgical procedure associated";
    5. no additional surgical procedure classified as a "failure."

Secondary Outcome Measures:
  • Rate of Fusion Success [ Time Frame: 24 months ] [ Designated as safety issue: No ]

    Rate of fusion success is reported as percent of subjects having fusion success. The fusion success was defined radiologically as:

    1. evidence of bridging bone;
    2. no evidence of motion;
    3. no evidence of radiolucency at greater than 50% of the superior or inferior PEEK spacer-vertebra interface.

  • Success Rate of Oswestry Disability Index [ Time Frame: 24 months ] [ Designated as safety issue: No ]
    Success rate of Oswestry Disability Index (ODI) is reported as percent of subjects whose ODI score met: pre-operative score - post-operative score ≥ 15.

  • Success Rate of Neurological Status [ Time Frame: 24 months ] [ Designated as safety issue: Yes ]
    Neurological status was assessed in six sections: motor, sensory, reflexes, straight leg raising, bowel function, and bladder function. Each of the sections had a number of elements. Success rate of neurological status is reported as percent of subjects whose neurological status was maintained or improved in three key neurological assessments—motor, sensory, and deep tendon reflexes.

  • Success Rate of Back Pain [ Time Frame: 24 months ] [ Designated as safety issue: No ]
    Success rate of back pain is reported as percent of subjects whose back pain improvement met: pre-operative score - post-operative score > 0.

  • Success Rate of Leg Pain [ Time Frame: 24 months ] [ Designated as safety issue: No ]
    Success rate of leg pain is reported as percent of subjects whose leg pain improvement met: pre-operative score - post-operative score > 0.

  • Success Rate of General Health Status [ Time Frame: 24 months ] [ Designated as safety issue: No ]
    The Medical Outcomes Study 36-Item Short Form (SF-36) health survey was used to assess general health status. The SF-36 results were summarized into two components, a physical component summary (PCS) and a mental component summary (MCS). To be classified as a success, the following criteria must be met for SF-36 PCS and MCS, respectively: post-operative score - pre-operative score >= 0. The results are reported as percent of subjects who have SF-36 PCS success, SF-36 MCS success, and overall SF-36 success.

  • Percent of Subjects Who Had Additional Surgical Procedures/Interventions [ Time Frame: 24 months ] [ Designated as safety issue: Yes ]
  • Operative Time [ Time Frame: Operative time was recorded from skin incision to wound closure ] [ Designated as safety issue: No ]
  • Blood Loss [ Time Frame: During the operation ] [ Designated as safety issue: No ]
  • Hospital Stay [ Time Frame: During the time of hospital stay ] [ Designated as safety issue: No ]

Enrollment: 15
Study Start Date: July 2011
Study Completion Date: January 2015
Primary Completion Date: September 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Control Group Other: Iliac Crest Bone Graft
Subjects enrolled in the control group will receive the same surgical treatment as the investigational group, including the CAPSTONE® Spinal System and posterior supplemental fixation system (CD HORIZON® Spinal System), except for the use of autogenous bone graft (from the iliac crest) instead of INFUSE® Bone Graft. A TLIF surgical approach will also be used for implanting the control treatment.
Other Name: Autograft
Experimental: Investigational Group Device: INFUSE Bone Graft
Subjects enrolled in the investigational treatment group will receive surgical treatment with INFUSE® Bone Graft, the CAPSTONE® Spinal System, and posterior supplemental fixation (in this study the CD HORIZON® Spinal System). The investigational treatment will be implanted using a TLIF surgical approach.
Other Names:
  • rhBMP-2/ACS
  • Dibotermin alfa

Detailed Description:
The study is a prospective, multi-national study that compares INFUSE® Bone Graft (investigational group) to autogenous bone graft (control group). Control group subjects will receive the same surgical treatment except for the use of autogenous bone graft (from the iliac crest) instead of INFUSE® Bone Graft. All sites will follow a common Clinical Investigational Plan (CIP) that consists of the protocol and accompanying case report forms, risk analysis, investigator's agreement, subject informed consent, institutional review board (IRB) certification, labeling, and monitoring information.

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Has advanced degenerative disease of the lumbosacral spine (L2 to S1) that results in radiculopathy secondary to nerve root compression, manifested by, History of radiating leg or buttock pain, paresthesias, numbness or weakness, or History of neurogenic claudication.
  • Has a history of low back pain
  • Has radiographic evidence of advanced degenerative lumbosacral disease, such as decreased disc height; herniated nucleus pulposus; hypertrophy or thickening of the ligamentum flavum, annulus fibrosis, or facet joint capsule; hypertrophied facet joints, facet joint space narrowing, or facet periarticular osteophyte formation; trefoil canal shape; or lateral(subarticular) stenosis; or vertebral endplate osteophyte formation; and at least one of the following:

Sagittal plane translation (slippage) of the superior (cranial) vertebral body anterior or posterior to the inferior (caudal) vertebral body greater than 3mm, or Coronal plane translation (slippage) of the superior (cranial) vertebral body lateral to the inferior (caudal) vertebral body greater than 3mm, or Narrowing (stenosis) of the lumbar spinal canal and/or intervertebral foramen

  • Has single-level or adjacent two-level involvement from L2 to S1.
  • Has preoperative Oswestry score ≥30.
  • Has preoperative back pain score of ≥ 6 based on the Preoperative Back and Leg Pain Questionnaire (pain intensity + pain frequency).
  • Has preoperative leg pain score of ≥ 6 based on the Preoperative Back and Leg Pain Questionnaire (pain intensity + pain frequency).
  • Is at least 18 years of age and skeletally mature at the time of surgery.
  • Has not responded to non-operative treatment (e.g., bed rest, physical therapy, medications, spinal injections, manipulation, and/or TENS) for a period of six months.
  • Is willing and able to comply with the study plan and able to understand and sign the Subject Informed Consent Form.

Exclusion Criteria:

  • Requires spinal fusion at more than two lumbar levels or at two non-adjacent levels.
  • Has had a prior lumbar surgical fusion procedure at the involved or adjacent spinal levels.
  • Has significant lumbar instability, defined as sagittal or coronal plane listhesis greater than Grade 2 spondylolisthesis utilizing Meyerding's Classification (Meyerding, HW, 1932).
  • Has scoliosis greater than 30 degrees.
  • Has had a previous diagnosis of osteoporosis, osteopenia, or osteomalacia.
  • In addition, if the subject has any of the following risk factors, a DEXA scan should be performed to determine eligibility:

History of a non-traumatic hip or spine fracture. Female who is postmenopausal. Female over the age of 65. Male over the age of 70. If the DEXA T-score is -2.5 or lower, OR a T-score of -1.5 or lower WITH a history of a vertebral compression fracture, the subject is excluded.

  • Is morbidly obese, as defined as a Body Mass Index (BMI) > 40.
  • Has an active malignancy or prior history of malignancy (except for basal cell carcinoma of the skin).
  • Has an overt or active bacterial infection, either local or systemic.
  • 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.
  • Has a history of clinically significant cardiac or hematologic disease.
  • Has a history of autoimmune disease known to affect bone metabolism or the spine. Examples include spondyloarthropathies (e.g., ankylosing spondylitis, Crohn's disease, and ulcerative colitis), juvenile arthritis, rheumatoid arthritis, Grave's disease, and Hashimoto's thyroiditis.
  • Has a medical disease or condition that would preclude accurate clinical evaluation of the safety and effectiveness of the treatments in this study, such as motor weakness, sensory loss, or painful conditions that inhibit normal ambulation or other activities of daily living.
  • Has a history of any endocrine or metabolic disorder known to affect osteogenesis (e.g., Paget's disease, renal osteodystrophy, Ehlers-Danlos syndrome, or osteogenesis imperfecta).
  • Has chronic or acute renal and/or hepatic failure or prior history of renal and/or hepatic parenchymal disease.
  • Has a history of exposure to injectable collagen.
  • Has received any previous exposure to any/all BMPs of either human or animal extraction.
  • Has a history of hypersensitivity to collagen or protein pharmaceuticals (e.g., monoclonal antibodies or gamma globulins).
  • Has a history of any allergy resulting in anaphylaxis.
  • Has a history of allergy to bovine products.
  • Has a documented allergy or intolerance to titanium, titanium alloy, tantalum, tantalum alloy, or polyetheretherketone (PEEK).
  • Has any condition in which MRI scans are contraindicated (e.g., cardiac pacemaker, brain aneurysm clips).
  • Has any condition in which a gadolinium-contrast MRI is contraindicated (e.g., sickle cell anemia, renal failure).
  • Is mentally incompetent. If questionable, obtain psychiatric consult.
  • Has a 'Waddell Signs of Inorganic Behavior' score of 3 or greater.
  • Is a prisoner.
  • Is a tobacco user who does not agree to suspend tobacco use prior to surgery.
  • Is an alcohol and/or drug abuser as defined by currently undergoing treatment for alcohol and/or drug abuse.
  • Has received treatment with an investigational therapy (drug, device and/or biologic) within 28 days prior to implantation surgery or such treatment is planned during the 24-month period following the study surgery.
  • Is pregnant or nursing. Female of child-bearing potential must agree not to become pregnant for one year following surgery.
  • Is a Worker's Compensation case or is involved in spinal litigation.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01415908

United States, Arizona
Sonoran Spine Center
Mesa, Arizona, United States, 85202
United States, California
USC Department of Neurological Surgery
Los Angeles, California, United States, 90033
United States, Florida
Andrews Institute
Gulf Breeze, Florida, United States, 32561
United States, Indiana
Fort Wayne Orthopaedics
Fort Wayne, Indiana, United States, 46804
United States, Pennsylvania
UPMC Presbyterian
Pittsburgh, Pennsylvania, United States, 15213
Sponsors and Collaborators
Medtronic Spinal and Biologics
  More Information

No publications provided

Responsible Party: Medtronic Spinal and Biologics Identifier: NCT01415908     History of Changes
Other Study ID Numbers: Medtronic P05-06 
Study First Received: August 10, 2011
Results First Received: September 25, 2015
Last Updated: September 25, 2015
Health Authority: United States: Food and Drug Administration
United States: Institutional Review Board

Keywords provided by Medtronic Spinal and Biologics:
advanced degenerative disease of the lumbosacral spine
lumbosacral spine
degenerative instability
lateral listhesis
spinal stenosis
disc herniation
INFUSE Bone Graft
CD HORIZON Spinal System
CAPSTONE Spinal System

Additional relevant MeSH terms:
Bone Diseases
Joint Diseases
Musculoskeletal Diseases
Spinal Diseases
Spondylitis processed this record on February 10, 2016