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Degenerative Disc DiseaseNCT04689854

Cervical Interbody Implant Study

An observational study of Degenerative Disc Disease and Cervical Spinal Instability, run by NuVasive at 7 sites in United States.

Enrolling by invitation

Enrolling by invitation. The study team selects and invites participants, usually from an existing group of patients.

Sites and contacts
Official record
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Trial summary

The primary objective of this study is to evaluate the safety and performance of cervical spine surgery using interbody implants as measured by reported complications, radiographic outcomes, and patient-reported outcomes (PROs). Read more about this study

Who is it for?
Ages 18 years and older
How many people
150 participants
Where
7 sitesUnited States
Study dates
7 Jul 2020to 31 Dec 2025
Phase
Observational
Are there results?
Not yet: the study is under way

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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: The Enrolled Population will include all subjects who meet the criteria for enrollment, specifically, those subjects who: * Satisfied the inclusion and exclusion criteria * Signed the informed consent * Underwent the surgical procedure, as defined in this protocol Subjects not meeting any of these criteria will not be considered enrolled in the study, and therefore not included in any study population or analysis.

Who may be able to join

  • Patients who are ≥18 years of age at the time of consent
  • Have a planned spine surgery using interbody implants at one or more cervical levels (C2-T1) for degenerative disc disease and/or cervical spinal instability
  • Using one of the following implants (NuVasive, Inc., San Diego, CA):
  • Cohere Cervical
  • Modulus Cervical
  • With interbody fusion using autograft and/or allograft (i.e., cancellous and/or corticocancellous allograft bone) and NuVasive supplemental internal fixation cleared by the applicable regulatory body for use in the cervical spine
  • Able to undergo surgery based on physical exam, medical history, and surgeon judgment
  • Understands the conditions of enrollment, is willing to follow medical advice including postoperative activity restrictions per the surgeon's standard of care, and is willing to sign an informed consent form to participate in the study

Who cannot join

  • Use of any bone graft that is not cleared by the applicable regulatory body for use within interbody implants. Examples of these include:
  • Bone morphogenic protein (BMP) (i.e., Infuse (Medtronic))
  • Synthetic bone graft extenders (e.g., Formagraft (NuVasive), Mastergraft (Medtronic), Vitoss (Stryker), Actifuse (Baxter), nanOss (RTI Surgical), Fibergraft (Prosidyan/Depuy Synthes), and ChronOs (Depuy Synthes))
  • Demineralized bone matrices (DBM) regulated as medical devices by the FDA (e.g., Grafton Putty/Gel (Medtronic), DBX (MTF/Depuy Synthes), Accell Evo3 (IsoTis), and Propel Putty/Gel (NuVasive))
  • Peptide enhanced bone graft (e.g., iFactor (Cerapedics))
  • Previous cervical fusion surgery at the level(s) to be treated (adjacent level surgery is acceptable; prior decompression is acceptable)
Show all 14Show fewer
  • Patient is involved in active litigation relating to the spine (worker's compensation claim is allowed if it is not contested)
  • Use of bone growth stimulators postoperatively
  • Active smoking within 6 weeks before surgery
  • Patient has known sensitivity to the materials implanted
  • Systemic or local infection (latent or active) or signs of local inflammation
  • Patient has inadequate bone stock or bone quality, or a physical or medical condition that would prohibit beneficial surgical outcome based on surgeon judgment
  • Patient is a prisoner
  • Patient is participating in another clinical study that would confound study data

Trial locations and contacts

7 sites in 1 country. Contact the study team or a site near you to ask about taking part.

7 sites in 1 country

United States7 sites
  • Summa Health

    Akron, Ohio, 44320

  • University of Virginia

    Charlottesville, Virginia, 22908

  • Columbia Orthopedic Group Research

    Columbia, Missouri, 65201

  • Duke University

    Durham, North Carolina, 27710

  • Hartford Healthcare Bone and Joint Institute

    Hartford, Connecticut, 06106

  • Orthopedic Specialty Institute

    Orange, California, 92868

  • Mass General Brigham

    Somerville, Massachusetts, 02145

Other trials in United States

About this study

Official title: A Prospective, Multicenter Study Evaluating the Safety and Performance of Interbody Implants for the Treatment of Patients With Degenerative Conditions of the Cervical Spine

The primary objective of this study is to evaluate the safety and performance of cervical spine surgery using interbody implants as measured by reported complications, radiographic outcomes, and patient-reported outcomes (PROs).

Read the detailed description

This study is a prospective, uncontrolled, multicenter study to evaluate the safety and performance of select interbody implant devices in patients who undergo interbody fusion surgery of the cervical spine. Consecutive patients at a given site who meet eligibility requirements will be asked to consent to participate in the study. These patients will present with degenerative conditions in the cervical spine that are amenable to surgical treatment and will be screened prior to study enrollment. Once enrolled into the study, subjects will undergo interbody fusion surgery using one of the NuVasive interbody implant groups based on the surgeon's standard of care. At least 150 subjects (a minimum of 75 patients in each implant group) will be enrolled and will be followed for 24 months after the surgery.

Medical subject headings
Intervertebral Disc Degeneration

What participants receive

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

Study groups in NCT04689854
Study groupRoleWhat they receive
Cohere CervicalNot described
Modulus CervicalNot described

What is being measured

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

  1. Complications of Interbody Implants

    Rate of complications (i.e., safety) attributable to the use of the interbody implants to be studied.

    Measured: 24 months

  2. Radiographic Fusion Success

    The proportion of subjects with apparent radiographic fusion (i.e., performance) of the index surgical level(s) at 24 months postoperative.

    Measured: 24 months

Secondary outcomes (7)
  1. Percentage of subjects meeting minimal clinically important difference (MCID) as compared to baseline for neck/arm pain measured by visual analog scale (VAS).

    Neck and arm pain measured using a visual analog scale (VAS) will be assessed to determine the percentage of subjects who meet MCID (2.5 points and 2.5 points respectively) where 0 is "No Pain" and 10 is "Unbearable Pain".

    Measured: 24 months

  2. Percentage of subjects meeting minimal clinically important difference (MCID) as compared to baseline for disability measured by the neck disability index.

    Disability measured by the neck disability index (NDI) will be assessed to determine the percentage of subjects who meet MCID (7.5 points) where a higher score on the NDI indicates a more severe disability.

    Measured: 24 months

  3. Percentage of subjects meeting minimal clinically important difference (MCID) as compared to baseline measured by overall physical and mental health from PROMIS-10.

    Overall physical and mental health measured by PROMIS-10 will be assessed to determine the percentage of subjects who meet MCID (5 points). PROMIS-10 scoring uses a T-score metric in which 50 is the mean of a relevant reference population and 10 is the standard deviation (SD) of that population.

    Measured: 24 months

  4. Percentage of subjects meeting Substantial clinical benefit (SCB) as compared to baseline for disability measured by the neck disability index (NDI).

    Disability measured by the neck disability index (NDI) will be assessed to determine the percentage of subjects who meet SCB (9.5 points) where a higher score on the NDI indicates a more severe disability.

    Measured: 24 months

  5. Percentage of subject meeting Substantial Clinical Benefit (SCB) as compared to baseline for neck/arm pain measured by visual analog scale (VAS).

    Neck and arm pain measured using a visual analog scale (VAS) will be assessed to determine the percentage of subjects who meet SCB (3.5 points) where 0 is "No Pain" and 10 is "Unbearable Pain"

    Measured: 24 months

  6. Percentage of subjects meeting Substantial Clinical Benefit (SCB) as compared to baseline for measure by overall physical and mental health from PROMIS-10

    Overall physical and mental health measured by PROMIS-10 will be assess to determine the percentage of subjects how meet SCB (6.8 points). PROMIS-10 scoring uses a T-score metric in which 50 is the mean of the relevant reference population and 10 is the standard deviation (SD) of that population.

    Measured: 24 months

  7. Rate of complications attributable to the use of any additional NuVasive instruments, implants, or technologies.

    Rate of complications attributable to the use of any additional NuVasive instruments, implants, or technologies.

    Measured: 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 posted30 Dec 2020
  2. Study start7 Jul 2020
  3. Primary completion31 Dec 2025 (estimated)
  4. Study completion31 Dec 2025 (estimated)

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
Prospective
Enrolment
150 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04689854
Sponsor's protocol ID
NUVA.CIB0420
Status last verified
Dec 2025
First submitted
28 Dec 2020
Last updated
22 Dec 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Degenerative Disc Disease and Cervical Spinal Instability, run by NuVasive at 7 sites in United States.

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 8 inclusion and 14 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: enrolling by invitation, as of the sponsor's last update on 22 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

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?

This study is still under way. Results are not available in the source record yet.

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?

Complications of Interbody Implants (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 22 Dec 2025.

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