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Vertebral Bone Marrow Clot for Spinal Surgery

The Vertebral Bone Marrow Clot as Autologous Cell-therapy and Multifunctional Bio-scaffold Targeting the Key Challenges for Spinal Fusion Surgery

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05947175
Enrollment
96
Registered
2023-07-17
Start date
2023-05-19
Completion date
2027-05-18
Last updated
2026-05-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Degenerative Spine Diseases

Keywords

Spine, Spinal fusion, Degenerative diseases, Vertebral bone marrow, Clot

Brief summary

Spinal fusion (SF) is a common orthopedic procedure to treat spinal diseases. Apart from fixation systems, the procedure requires bone grafting to further improve SF. Cell-based therapies as vertebral bone marrow aspirate (vBMA) with bone allograft were developed as alternative to bone autograft in SF. However, vBMA use is limited by the lack of a standardized procedure, of a structural texture and by the possibility of diffusion away from the implant site. Recently, the potential use of a new formulation of vBMA, named vBMA clot, has been described. The project aims at evaluating the clinical evidence and the biological features of vBMA clot associated to bone allograft for SF surgery, considering age and gender related differences. A randomized controlled trial will prove the efficacy of the treatment and advanced preclinical studies will improve the knowledge on vBMA clot regenerative and anti-inflammatory properties, exploring for the first time its antibacterial characteristics.

Detailed description

To evaluate the efficacy of autologous vBMA clot in SF procedures in patients with degenerative spine diseases, a randomized controlled trial (RCT) will be carried out. The study will compare patients treated with autologous vBMA clot associated to bone allograft chips versus bone allograft chips alone (standard treatment), also evaluating whether patient age and gender are associated with differences in the clinical outcomes.

Interventions

BIOLOGICALVertebral bone marrow (vBMA) clot

The clotted vBMA will be obtained from vertebral bone marrow aspirate.The vBMA clot contain mesenchymal stem cells (MSCs), growth factors, platelet and osteogenic and anti-inflammatory mediators.

OTHERBone allograft chips

Bone allograft chips will be obtained from Musculoskeletal Tissue Bank at IRCCS Istituto Ortopedico Rizzoli.

Sponsors

Istituto Ortopedico Rizzoli
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* degenerative spinal disorders (based radiological diagnosis) * posterior spinal stabilization ≤ 5 levels * age between 18-80 years at the time of surgery

Exclusion criteria

* HIV * HBV * HCV * coagulations disorders * pregnant or breast-feeding women * cancer * infections * previous spinal surgery * radio- chemotherapy * myeloproliferative disease * chronic steroid medication, thyroxin, immunodepression

Design outcomes

Primary

MeasureTime frameDescription
Brantigan classificationAt baseline (day 0)Improvement of spinal fusion rate and time in patients treated with vBMA clot associated to bone allograft chips in comparison to bone allograft chips alone, also considering age and gender differences. CT-scan and X-ray, perform pre-operatively and at 1, 3, 6, 12 months of FU, will be evaluated basing on Brantigan classification (which ranges from A to E, with E score indicating better SF rate).

Secondary

MeasureTime frameDescription
Re-operation rateAt baseline (day 0)The radiological outcome is the reduction of re-operation rate due to pseudoarthrosis that will be estimate by Brantigan classification.
Visual Analogue ScoreAt baseline (day 0)Visual Analogue Score (which ranges from 0 to 100 with higher scores indicating more severe pain)
Oswestry Disability IndexAt baseline (day 0)Oswestry Disability Index (ODI) (which ranges from 0 to 100 with higher scores indicating more severe disability)
Short Form Health Survey 36At baseline (day 0)Short Form Health Survey 36 (SF-36) (set of generic and coherent quality-of-life measures based on patient self-reporting outcomes)

Countries

Italy

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 28, 2026