AzTrials
AzTrials

Thoracolumbar SpineNCT05456633

Clinical and Radiographic Outcomes of Spine Surgeries Utilizing Capri Cervical and Thoracolumbar Corpectomy Cage Systems

An observational study of Thoracolumbar Spine and Cervical Spine Injury, run by K2M, Inc..

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
Search all trials

Trial summary

This is a retrospective and prospective observational, multi center study of subjects who have undergone or will undergo vertebral body replacement surgery in the cervical or thoracolumbar spine utilizing Stryker Capri Corpectomy Cages. Read more about this study

Who is it for?
Any age
Conditions the study is for
Thoracolumbar Spine, Cervical Spine Injury
What is being tested?
Capri Cervical Static, CAPRI Static Expandable and Capri Thoracolumbar
Type of treatment
Medical device
How many people
0 participants
Where
No sites listed yet
Study dates
Oct 2023to Aug 2026
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: The sample size for this study will be a total of 126 subjects planned to receive one of the Capri Corpectomy systems mentioned below at up to 20 sites in the United State: * 42 subjects for Capri Cervical 3D Static * 42 subjects for Capri Cervical 3D Expandable * 42 subjects for Capri Thoracolumbar Expandable This sample size allows for up to a 15% loss-to-follow-up at 24 months. The sample size analysis below indicates that N=36 per device are needed for 80% power to meet the a priori performance goal

Who may be able to join

  • Skeletally mature
  • Willingness and ability to comply with the requirements of the protocol including follow-up requirements
  • Willing and able to sign a study specific informed consent form. For fully retrospective enrollments, i.e., subjects that already have 24-month follow-up data available, the Principal Investigator will request a waiver of the written informed consent requirement.
  • Has undergone or will undergo VBR in the cervical spine (C2 to T1 in the USA, C3 to C7 outside of the USA) using either Capri Cervical 3D Static OR Capri Cervical 3D Expandable to replace diseased or damaged vertebral bodies due to tumor, trauma (i.e., fracture), or osteomyelitis, or for reconstruction following corpectomy performed to achieve decompression of the spine cord and neural tissues in cervical degenerative disorders -OR- Has undergone or will undergo VBR in the thoracolumbar spine (T1 to L5) using Capri Thoracolumbar Expandable to replace collapsed, damaged, or unstable vertebral bodies due to tumor or trauma (i.e., fracture)
  • Score at least 30 points on the ODI or at least 30 points on the NDI at screening (or before surgery for retrospective enrollment) (on a 100-point scale)

Who cannot join

  • Presence of infection, except within the spinal indications for use of this product
  • Pregnancy (pregnant at the time of enrollment or intends to become pregnant during the course of the study)
  • Metabolic disorders of calcified tissues
  • Grossly distorted anatomy
  • Inadequate tissue coverage
  • Drug / alcohol abuse
Show all 20Show fewer
  • Mental illness such as a psychiatric or cognitive impairment, that in the opinion of the investigator, would interfere with the subject's ability to comply with the study requirements or patient reported outcomes (e.g., Alzheimer's Disease)
  • General neurological conditions
  • Immunosuppressive disorders
  • Subjects with known sensitivities to materials in the device
  • Obesity defined as a BMI greater than 30
  • Subjects who are unwilling to restrict activities or follow medical advice
  • Any condition where the implants interfere with anatomical structures or precludes the benefit of spinal surgery
  • Biological factors such as smoking, use of nonsteroidal anti-inflammatory agents, use of anticoagulants, etc.
  • Subjects that adhere to the specified washout period detailed below can be enrolled: Smoking cessation must occur at a minimum of 4 weeks prior to surgery; Nonsteroidal anti-inflammatories (NSAIDs) should be stopped at a minimum of 7 days prior to surgery; Anticoagulants should be stopped at the discretion of the operating surgeon as the washout period varies for each medication
  • Trauma subjects that are unable to adhere to the washout period can be enrolled; however, the aforementioned biological factors will need to be documented during data collection
  • Prior fusion at the level(s) to be treated
  • Incarcerated at the time of study enrollment
  • Current participation in an investigational study that may impact study outcomes
  • Involved in current or pending spinal litigation or a workman compensation claim

About this study

Official title: Multi-Center, Retrospective and Prospective Evaluation for Clinical and Radiographic Outcomes of Spine Surgeries Utilizing Capri Cervical and Thoracolumbar Corpectomy Cage Systems: Observational Post Market Clinical Follow-Up Study

This is a retrospective and prospective observational, multi center study of subjects who have undergone or will undergo vertebral body replacement surgery in the cervical or thoracolumbar spine utilizing Stryker Capri Corpectomy Cages.

The primary study hypothesis to determine effectiveness, is that the mean improvement in NDI (cervical) or ODI (thoracolumbar) score from baseline meets or exceeds 15-points at 24 months for Stryker Capri Corpectomy Cage systems individually.

Read the detailed description

Corpectomy procedures are utilized to treat a variety of spinal pathologies including tumor, often as a result of metastatic spine disease, fracture frequently attributed to trauma, osteomyelitis (infection), and degenerative disorders which require reconstruction to achieve decompression of the spinal cord or neural tissues. Patients may present with pain, spinal instability, and neurological deficits. Corpectomy involves a resection or excision of the affected vertebrae and intervertebral disc(s), followed by placement of a vertebral body replacement (VBR) to reconstruct the anterior column of the spine and restore stability and alignment.

Common indications for VBR procedures include spinal instability due to vertebral fractures, vertebral compression fractures, and fractures related to malignancy or infection and control of disease, such as metastatic disease in the spine. Causes of spinal fractures may include falls, sports, and motor vehicle accidents. Spinal tumors are often caused by metastases of the skeletal system, which commonly affect the spine. Additionally, VBR procedures may be considered in response to cervical spondylotic myelopathy which is a progressive degenerative disease and a common cause of cervical spinal cord dysfunction and cervical myelopathy in people over the age of 55. Corpectomy (or vertebrectomy) with reconstruction has become a common surgical procedure used for decompression and reconstruction of the spine. Traditionally, reconstruction has included autograft, allograft, and bone substitutes; however, the use of grafts alone have been reported to lead to complications such as donor site morbidity, high rates of pseudarthrosis, and delayed union. The evolution of corpectomy cages has led to improvements in both clinical and radiographic outcomes. Titanium mesh cages were one of the earliest types of non-graft-based corpectomy cages, providing a biocompatible method of rapidly stabilizing the affected segments, reducing donor site morbidity, and improving outcomes.

This study will examine use of the Capri Corpectomy Cage systems in cervical and/or thoracolumbar cases in the treatment of trauma, tumor, infection (cervical only), or degeneration (cervical only) using static (cervical only) or expandable (cervical and thoracolumbar) cages. Clinical efficacy and safety will be assessed in this post-market study through evaluation of patient outcomes in comparison to baseline, pre-operative conditions.

Capri Corpectomy system implants are VBR devices that are designed in a variety of lengths, widths, and heights to match the patient's anatomy. The caudal and cephalad ends of the implant have teeth which are designed to engage with the vertebral body endplates. The side walls of the implants contain windows that may be used for graft incorporation. Instruments are used for inserting the associated implant components using standard surgical techniques. There are curettes, scrapers, and box chisels for preparing the disc spaces and vertebral body endplates. Insertion instruments are available for inserting the implant. Capri Corpectomy Cage systems are available as cervical static cages (comprised of titanium alloy) and cervical or thoracolumbar adjustable (i.e., expandable) cages (comprised of titanium alloy and cobalt chrome). Devices may be implanted via posterior, anterior, or lateral approaches.

Being tested
Capri Cervical Static, CAPRI Static Expandable, Capri Thoracolumbar

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Capri Cervical StaticDevice

    When used in the cervical spine (C2-T1), CAPRI Static cages are intended for use in skeletally mature patients to replace a diseased or damaged vertebral body caused by tumor, fracture, or osteomyelitis, or for reconstruction following corpectomy performed to achieve decompression of the spinal cord and neural tissues in cervical degenerative disorders.

  • CAPRI Static ExpandableOther

    When used in the cervical spine (C2-T1), CAPRI Static Expandable cages are intended for use in skeletally mature patients to replace a diseased or damaged vertebral body caused by tumor, fracture, or osteomyelitis, or for reconstruction following corpectomy performed to achieve decompression of the spinal cord and neural tissues in cervical degenerative disorders.

  • Capri ThoracolumbarDevice

    Intended for use to replace a collapsed, damaged, or unstable vertebral body due to tumor and trauma (i.e. fracture).

Study groups in NCT05456633
Study groupRoleWhat they receive
Capri Cervical 3D StaticSubjects who have undergone or will undergo VBR in the cervical spine (C2 to T1 in the USA, C3 to C7 outside of the USA) to replace diseased or damaged vertebral bodies due to tumor, trauma (i.e., fracture), or osteomyelitis, or for reconstruction following corpectomy performed to achieve decompression of the spine cord and neural tissues in cervical degenerative disorders
Receives: Device: Capri Cervical Static
Capri Cervical 3D ExpendableSubjects who have undergone or will undergo VBR in the cervical spine (C2 to T1 in the USA, C3 to C7 outside of the USA) to replace diseased or damaged vertebral bodies due to tumor, trauma (i.e., fracture), or osteomyelitis, or for reconstruction following corpectomy performed to achieve decompression of the spine cord and neural tissues in cervical degenerative disorders
Receives: Other: CAPRI Static Expandable
Capri Thoracolumbar ExpandableSubjects who have undergone or will undergo VBR in the thoracolumbar spine (T1 to L5) with Capri Thoracolumbar Expandable to replace collapsed, damaged, or unstable vertebral bodies due to tumor or trauma (i.e., fracture)
Receives: Device: Capri Thoracolumbar

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mean improvement in NDI score

    Mean improvement in NDI score over baseline that meets or exceeds 15 points (on a 100 point scale) at 24 months (cervical)

    Measured: 24 Months

  2. Mean ODI improvement

    Mean ODI improvement over baseline that meets or exceeds 15 points (on a 100-point scale) at 24 months (thoracolumbar)

    Measured: 24 Months

Secondary outcomes (19)
  1. NDI or ODI

    Patient-Reported Outcome Measures

    Measured: Initial Post-Op to 24 Months

  2. Visual Analogue Scale (VAS)

    Patient-Reported Outcome Measures

    Measured: Initial Post-Op to 24 Months

  3. EuroQol-5 Dimensions-5 Levels (EQ 5D-5L)

    Patient-Reported Outcome Measures

    Measured: Initial Post-Op to 24 Months

  4. Fusion or non-union

    Radiographic Assessments: Effectiveness

    Measured: 24 Months

  5. Range of motion

    Radiographic Assessments: Effectiveness

    Measured: 24 Months

  6. Translational motion

    Radiographic Assessments: Effectiveness

    Measured: 24 Months

  7. Disc height

    Radiographic Assessments: Effectiveness

    Measured: 24 Months

  8. Surgery Time

    Clinical Observations

    Measured: During Surgery

  9. Anesthesia Time

    Clinical Observations

    Measured: During Surgery

  10. Estimated blood loss

    Clinical Observations

    Measured: During Surgery

  11. Length of hospital stay on day of Surgery / Pre-Discharge

    Clinical Observations

    Measured: During Surgery

  12. Patient Satisfaction at 12 Month

    Clinical Observations

    Measured: 12 Months

  13. Patient Satisfaction

    Clinical Observations

    Measured: 24 Months

  14. Use of pain medication post surgery at all visits

    Clinical Observations

    Measured: Post surgery - 24 Months

  15. Neurological Examination

    Clinical Observations

    Measured: 12 Months

  16. Subsidence

    X-Ray Safety Assessment

    Measured: 12 and 24 Months

  17. Device Migration

    X-Ray Safety Assessment

    Measured: 12 and 24 Months

  18. Adjacent Segment Degeneration

    X-Ray Safety Assessment

    Measured: 12 and 24 Months

  19. Device and supplemental fixation breakage

    X-Ray Safety Assessment

    Measured: 12 and 24 Months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Jul 2022
  2. Study startOct 2023 (estimated)
  3. Primary completionAug 2024 (estimated)
  4. Study completionAug 2026 (estimated)

Why it stopped: The study has been withdrawn and no participant was enrolled.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Other
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05456633
Sponsor's protocol ID
CAS-031
Status last verified
Sep 2023
First submitted
11 Jul 2022
Last updated
25 Sep 2023
Results posted
No
FDA-regulated drug
No
FDA-regulated device
Yes

Questions about this trial

What is this clinical trial studying?

An observational study of Thoracolumbar Spine and Cervical Spine Injury, run by K2M, Inc..

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 20 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 25 Sep 2023. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mean improvement in NDI score (time frame: 24 Months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Sep 2023.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in