Clinical trial Recruiting at 9 sites Interventional Ages 18 and up

Comparing two bone graft extenders for spinal fusion surgery

Official title: A Prospective, Randomized, Multi-center Study to Assess the Performance of MagnEtOs Flex Matrix Mixed With Local Autograft Compared to Trinity Elite Mixed With Local Autograft in Patients Undergoing up to Four-level Instrumented poSterolatEral Lumbar/Thoraco-lumbar Fusion (PLF)

Run by Kuros Biosurgery AG · NCT05037968 · Data updated 2026-11-12

This study is testing whether a new bone graft extender called MagnetOs Flex Matrix works better than Trinity Elite for helping patients with degenerative disc disease heal after spinal fusion surgery.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment100 (estimated)
SponsorKuros Biosurgery AG
Industry-sponsored
Locations9 sites (Hartford, Connecticut and 8 other locations)
StatusRecruiting
StartedJune 10, 2024
Main results expectedDecember 2026
Study endsDecember 2026
Registry record updatedOctober 19, 2026
Trial IDNCT05037968 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older with leg and/or back pain requiring spinal fusion after failing conservative treatments for at least three months.

Probably not a fit

Patients requiring more than four-level fusion or those with prior surgeries at the involved levels may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial evaluates the effectiveness of MagnetOs Flex Matrix compared to Trinity Elite when used as bone graft extenders in patients undergoing up to four-level instrumented posterolateral fusion due to degenerative disc disease. A total of 100 patients will be randomized to receive either MagnetOs Flex Matrix or Trinity Elite at the surgical site, with follow-up assessments at various intervals up to one year post-surgery. The primary endpoint will focus on the success of spinal fusion as determined by radiographic analysis. This study aims to provide insights into the optimal use of these graft extenders in spinal surgery.

Why it matters

Potential benefit: If successful, this study could improve surgical outcomes and recovery for patients undergoing spinal fusion.

How similar studies have gone: Other studies have shown promising results with similar bone graft extenders, indicating potential for success in this approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patient is able to read/be read, understand, and provide written informed consent and has signed the Investigational Review Board (IRB) approved informed consent.
* Male or female patient ≥ 18 years old.
* Patients with leg pain, and/or back pain requiring up to four-level instrumented posterolateral lumbar/thoraco-lumbar fusion (T11 - S1)
* Failed conservative treatment (physical therapy, bed rest, medications, spinal injections, manipulations, or transcutaneous electrical nerve stimulation) for a minimum period of 3 months prior to study enrollment.

Exclusion Criteria:

* Requires \> four-level fusion or expected to need secondary intervention within one year following surgery.
* Had prior PLF fusion or attempted PLF fusion at the involved levels
* Had previous decompression at the involved levels.
* Women who are or intend to become pregnant within the next 12 months
* To treat conditions in which general bone grafting is not advisable.
* In conditions where the surgical site may be subjected to excessive impact or stresses, including those beyond the load strength of fixation hardware (e.g., defect site stabilization is not possible).
* In case of significant vascular impairment proximal to the graft site.
* In case of severe metabolic or systemic bone disorders (e.g., osteogenesis imperfecta or Paget's Disease) that affect bone or wound healing.
* In case of acute and chronic infections in the operated area (soft tissue infections; inflammation, bacterial bone diseases; osteomyelitis).
* When intraoperative soft tissue coverage is not planned or possible.
* Receiving treatment with medication interfering with calcium metabolism.
* Had leg pain, and/or back pain related to a benign or malignant tumor.
* Had history or presence of active malignancy.
* Has known substance abuse, psychiatric disorder, or condition which, in the opinion of the investigator, may influence the healing or ability to comply with protocol requirements.
* Is involved in active litigation relating to his/her spinal condition.
* Has participated in an investigational study within 30 days prior to surgery for study devices.

Where it's running

  • Hartford Hospital
    Hartford, Connecticut, United States
    Recruiting
  • Central CT Neurosurgery & Spine
    New Britain, Connecticut, United States
    Recruiting
  • Rush University Medical Center
    Chicago, Illinois, United States
    Recruiting
  • MedStar Health Research Institute
    Columbia, Maryland, United States
    Recruiting
  • Michigan Orthopedic Surgeons
    Bloomfield Hills, Michigan, United States
    Recruiting
  • Pinehurst Surgical Clinic
    Pinehurst, North Carolina, United States
    Recruiting
Show 3 more locations
  • The Ohio State University
    Columbus, Ohio, United States
    Recruiting
  • Huntsman Spinal Clinic
    Salt Lake City, Utah, United States
    Recruiting
  • Inova Healthcare
    Fairfax, Virginia, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.