The Kiva® System as a Vertebral Augmentation Treatment (KAST)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01123512
Recruitment Status : Completed
First Posted : May 14, 2010
Results First Posted : August 21, 2014
Last Update Posted : October 9, 2014
Information provided by (Responsible Party):
Benvenue Medical, Inc.

Brief Summary:
The purpose of this study is to evaluate the safety and effectiveness of the Kiva VCF Treatment system in comparison to balloon kyphoplasty for the treatment of osteoporotic vertebral compression fractures of the thoracic or lumbar spine.

Condition or disease Intervention/treatment Phase
Spinal Fractures Fractures, Compression Back Injuries Device: Vertebral augmentation Phase 3

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 300 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Participant)
Primary Purpose: Treatment
Official Title: The Kiva® System as a Vertebral Augmentation Treatment - A Safety and Effectiveness Trial
Study Start Date : July 2010
Actual Primary Completion Date : May 2013
Actual Study Completion Date : May 2013

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Fractures
U.S. FDA Resources

Arm Intervention/treatment
Experimental: Kiva VCF Treatment System Device: Vertebral augmentation
Vertebral augmentation for one or two osteoporotic vertebral compression fractures
Active Comparator: Balloon Kyphoplasty Device: Vertebral augmentation
Vertebral augmentation for one or two osteoporotic vertebral compression fractures

Primary Outcome Measures :
  1. Proportion of Participants With Study Success [ Time Frame: 12 Month Post-op ]

    Patient success will be defined as:

    1. Reduction in VCF fracture-related pain at 12 months by >15 mm from baseline as measured by a 100 mm Visual Analog Scale (VAS),
    2. Maintenance or improvement in function at 12 months from baseline as measured by the 100 point Oswestry Disability Index (ODI), and
    3. Absence of device-related serious adverse events, defined as device-related adverse events requiring surgical reintervention or retreatment at the index level, including revision, removal, reoperation, and/or supplemental fixation

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Ages Eligible for Study:   50 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria

Patients must meet all of the following inclusion criteria below to be included as research subjects:

  1. The patient is at least 50 years of age
  2. The patient has a score on the back pain visual analog scale (VAS) of ≥70 mm after 2 to 6 weeks of conservative care OR a VAS of ≥ 50 mm after 6 weeks of conservative care
  3. The patient has an Oswestry Disability Index (ODI) score of ≥ 30%
  4. The patient has radiographic evidence of one or two (1-2) A 1.1, A 1.2, A 1.3. fractures as classified by the AO Spine Fracture classification, due to primary or secondary osteoporosis in the thoracic and / or lumbar spine. Note that patients are eligible if they have had treatment of or healed VCF(s) at any non-index level
  5. The patient has central pain over the spinous process(es) upon palpation at the Index level(s)
  6. The Index fracture(s) is / are acute or persistent (not healed), as demonstrated by T2 weighted STIR MRI (or bone scan if patient is contraindicated for MRI
  7. The Index fracture(s) has / have failed conservative care of at least 2 weeks but no longer than 6 months
  8. The Index fracture(s) shows radiographic evidence of at least 5% vertebral collapse
  9. The pedicle identified for access to the index fracture has a diameter that is ≥ 6 mm
  10. The patient is mentally capable and willing to sign a study-specific informed consent as documentation of the informed consent process prior to any study procedures
  11. The patient is willing and able to comply with all study requirements including follow-up visits and radiographic assessments

Exclusion Criteria

Patients will not be allowed to participate in the study if they meet any of the exclusion criteria below:

  1. The index fracture(s) has/have been caused by high-energy trauma
  2. The index fracture(s) has / have known tumor involvement
  3. The index fracture(s) is/are diagnosed as an osteonecrotic fracture(s) by the treating physician
  4. The Index fracture(s) is a/are translational force fracture(s) (A2.1, 2.2, 2.3)
  5. The index fracture(s) is a/are burst fracture(s) (A 3.3., B or C type) or pedicle fracture(s) with posterior cortical wall disruption
  6. The index fracture(s) has / have posterior vertebral wall displacement occupying more than 20% of the cross sectional area of the spinal canal
  7. The index fracture(s) has / have severe deformity with reduction of >75% in any height and accompanying area, using adjacent level as comparison
  8. The index level(s) has / have undergone previous surgical treatment for a vertebral body compression fracture or other surgical procedure at the index level(s)
  9. Angulation of index fracture(s) makes treatment with Kiva System impossible (at discretion of surgeon)
  10. The pedicle identified for access to the index fracture has a diameter less than 6 mm
  11. The patient has Paget's disease
  12. The patient has a BMI > 35
  13. The patient has uncontrolled diabetes as characterized by hemoglobin HbA1c >7% and/or blood sugar >180mg/dL
  14. The patient has severe cardiopulmonary deficiencies
  15. The patient has myelopathy
  16. The patient is on long-term steroid therapy (steroid dose ≥ 30 mg /day for > 3 months)
  17. A medical contraindication to spinal surgery and/or general anesthesia, such as coagulopathy (with a threshold for normal being INR ≤ 1.5, PTT within lab normal range, and platelet count > 100,000)
  18. The patient has spinal canal compromise causing clinical manifestations of cord, neural foramen, or nerve root compression at the level(s) to be treated;
  19. The patient has neurologic symptoms or deficits or radiculopathy related to the VCF
  20. The patient has pain based on clinical diagnosis of herniated nucleus palposus or severe spinal stenosis (progressive weakness or paralysis)
  21. The patient has indications of instability related to the index fracture (≥ 30 degrees of kyphosis, translation >4mm, interspinous process widening, > Grade 1 spondylolisthesis and/or > 25 degrees of scoliosis if the index level is included in the curve)
  22. The patient has planned spine surgery for any disorder during or up to 30 days after the study treatment
  23. The patient has had spine surgery for any disorder in the 30 days prior to enrollment
  24. The patient has a documented active systemic or local infection, such as osteomyelitis or discitis, with a WBC > 15.0 x 10^3/µL and a temperature > 101.5°F
  25. The patient has a known allergy to the investigational device materials and / or acrylics / polymethylmethacrylate (PMMA) or a hypersensitivity to monomers
  26. The patient has been diagnosed with hemorrhagic diathesis
  27. The patient has uncontrolled psychiatric illness or severe dementia
  28. The patient has a baseline back pain visual analog scale (VAS) of <50 mm if patient has at least 6 weeks of conservative care or <70 mm if patient has 2-6 weeks conservative care
  29. The patient has a baseline Oswestry Disability Index (ODI) score of <30%
  30. The patient is currently on anti-cancer therapy or anti-HIV therapy
  31. Patient has autoimmune or inflammatory rheumatic disease
  32. Patient's life expectancy is less than the study duration or undergoing palliative care
  33. The patient is known to be a current alcohol or drug abuser
  34. The patient is known to be involved in medical litigation including Workmen's Compensation
  35. The patient is a prisoner
  36. The patient is participating in another investigational study that has a potential for effect to the study treatment or the study endpoints
  37. The patient is pregnant or considering getting pregnant during study participation

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01123512

  Hide Study Locations
United States, California
CORE Orthopaedic Medical Center
Encinitas, California, United States, 92021
El Camino Hospital
Mountain View, California, United States, 94040
Radiological Associates of Sacramento
Sacramento, California, United States, 95816
St. Mary's Spine Center
San Francisco, California, United States, 94117
United States, Colorado
Radiology Imaging Associates
Englewood, Colorado, United States, 80112
United States, Florida
Mayo Clinic Jacksonville
Jacksonville, Florida, United States, 32224
United States, Illinois
Evanston Hospital
Evanston, Illinois, United States, 60201
Adventist Hospital
Hinsdale, Illinois, United States, 60521
United States, Louisiana
Spine Institute of Louisiana
Shreveport, Louisiana, United States, 71101
United States, Minnesota
Mayo Clinic-Rochester
Rochester, Minnesota, United States, 55905
United States, Nevada
Sierra Regional Spine Institute
Reno, Nevada, United States, 89509
United States, Oklahoma
Clinical Radiology of Oklahoma
Edmond, Oklahoma, United States, 73013
United States, Pennsylvania
Penn State Hershey Medical Center
Hershey, Pennsylvania, United States, 17033
United States, South Carolina
Medical University of South Carolina
Charleston, South Carolina, United States, 29425
United States, Wisconsin
Medical College of Wisconsin
Milwaukee, Wisconsin, United States, 53226
CHC Saint Joseph
Liege, Belgium
Canada, Ontario
Toronto Western Hospital
Toronto, Ontario, Canada, M5T 2S8
Canada, Quebec
Montreal General Hospital
Montreal, Quebec, Canada, H3G 1A4
CHU Amiens Sud
Amiens, France, 80054
Universitatsklinikum Bonn
Bonn, Germany
Klinikum Ernst von Bergmann gGmbH
Potsdam, Germany
Sponsors and Collaborators
Benvenue Medical, Inc.
Principal Investigator: Steven R. Garfin, MD University of California, San Diego, CA
Principal Investigator: Sean M. Tutton, MD, FSIR Medical College of Wisconsin

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Benvenue Medical, Inc. Identifier: NCT01123512     History of Changes
Other Study ID Numbers: BEN005
First Posted: May 14, 2010    Key Record Dates
Results First Posted: August 21, 2014
Last Update Posted: October 9, 2014
Last Verified: October 2014

Keywords provided by Benvenue Medical, Inc.:
Vertebral Compression Fracture
Vertebral Body Compression Fracture
Back Pain

Additional relevant MeSH terms:
Fractures, Bone
Spinal Fractures
Back Injuries
Fractures, Compression
Wounds and Injuries
Spinal Injuries