A Pre-market Study to Evaluate b.Bone for Posterolateral Fusion (b.Spine Clinical Trial).

Not Applicable

Completed

• Conditions: Degenerative Spinal Conditions

• Registration Number: NCT05906394
• Lead Sponsor: GreenBone Ortho S.p.A.

Brief Summary

Prospective, open-label, single-arm clinical investigation. The purpose of this clinical investigation is to evaluate the bone substitute b.Bone in posterolateral fusion treatment of degenerative thoracolumbar, lumbar or lumbosacral spinal conditions, in terms of performance and safety.

Subjects who meet the study selection will undergo up to a three-level posterolateral fusion using b.Bone in combination with autologous bone in a 1:1 ratio. Subjects will be followed up at discharge, week 6, Month 3, Month 6, and Month 12.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2023-06-06
• Study First Submitted QC: 2023-06-14
• Study First Posted: 2023-06-15
• Study Start: 2023-08-01
• Primary Completion: 2025-02-18
• Study Completion: 2025-02-18
• Status Verified: 2025-04
• Last Update Submitted: 2025-04-16
• Last Update Posted: 2025-04-20

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 16

Inclusion Criteria

1. Male or female patient ≥ 18 years old.
2. Patients requiring posterolateral fusion treatment for degenerative thoracolumbar, lumbar, or lumbosacral spinal conditions up to 8 levels.
3. Patients willing and able to attend the follow-up visits and procedures foreseen by the study protocol.
4. Patients who have provided written informed consent to participate in the study and the processing of personal data before any study procedure is performed.

Exclusion Criteria

1. Any previous surgical attempt(s) for spinal fusion (revision surgery) of the intended segment(s).
2. Patients who have been treated with chemotherapy or radiotherapy within 12 months before the enrolment.
3. Indication for spinal fusion because of an acute traumatic reason, like a spinal fracture.
4. Bone infection.
5. Bone malignant tumor(s).
6. Concomitant infectious systemic diseases,
7. Inflammatory systemic diseases,
8. Concomitant myeloproliferative disorders,
9. Active autoimmune disease,
10. Known or suspected allergy or hypersensitivity to the b.Bone device components,
11. Calcium metabolism disorder (i.e. hypercalcemia),
12. Known hyperthyroidism or autonomous thyroid adenoma.
13. Patients currently treated with systemic immunosuppressive agents.
14. Patients who are currently enrolled in another clinical study that would directly interfere with the current study, except when the patient is participating in a purely observational registry with no associated treatments.
15. Body mass index (BMI) larger than 36 (morbidly obese).
16. Known severe osteoporosis.
17. Patients requiring instrumented fusion in the cervical spine.
18. Woman who is pregnant or breast-feeding.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Primary Outcome Measures

Name	Time	Method
Successful fusion rate by CT scan assessments after surgery.	12 months

Secondary Outcome Measures

Name	Time	Method
Quality of life assessed by Health Questionnaire	Baseline, 6 weeks, 3, 6, and 12 months post-treatment.
Successful fusion rate by CT scan assessments after surgery.	6 months
Functional activity assessed by Oswestry Disability Index.	Baseline, 6 weeks, 3, 6, and 12 months post-treatment.
Back and Leg pain assessed by Visual Analog Scale.	Baseline, 6 weeks, 3, 6, and 12 months post-treatment.
Rate of Adverse Events through the clinical trial period.	Up to 12 months
Neurological function	Baseline, 3, 6, and 12 months post-treatment.	Maintenance/improvement of neurological function postoperatively versus baseline.

Trial Locations

Locations (2)

Klinikum Magdeburg; 🇩🇪 Magdeburg, Germany

IRCCS Istituto Ortopedico Rizzoli; 🇮🇹 Bologna, Italy