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Bone Marrow Mononuclear Cells for the Repair of Severe Maxillofacial Bone Defects

StatusRecruiting
PhaseNot applicable
Started
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Record History

  1. Study First Submitted
  • Stopped: an ongoing trial was terminated, suspended or withdrawn.
  • Notable: the trial’s plan changed such as a big move in its timeline or size, a new primary endpoint, sponsor or phase, or recruiting opened or resumed.
  • Minor: routine progress and housekeeping, such as sites added or enrollment closed.
This is a single-center, single-arm, open-label clinical study conducted at the Department of Stomatology, Nanjing Drum Tower Hospital. The study aims to evaluate the safety and efficacy of autologous bone marrow-derived mononuclear cells (BMMNCs) combined with a bone graft material (Bio-Oss) for the repair of severe maxillofacial (alveolar/jaw) bone defects caused by inflammation, trauma, or other reasons. Approximately 20 patients aged 18-60 years with severe alveolar bone resorption requiring bone grafting will be enrolled. About 60 mL of autologous bone marrow will be aspirated from the iliac crest, and BMMNCs will be isolated by density-gradient centrifugation under GMP conditions without in vitro expansion. The BMMNCs will be mixed with Bio-Oss bone graft material and implanted into the bone defect, covered with a collagen membrane. Cone-beam CT (CBCT) will be performed postoperatively to assess new bone formation. Follow-up visits are scheduled at 1 week, 1 month, 3 months, and 6 months after surgery. The primary outcome is the new bone volume fraction in the grafted area measured by CBCT. Safety will be assessed by clinical examination of the implantation site and laboratory tests (blood routine, urinalysis, liver and kidney function, blood glucose).
Trial Details
NCT Number NCT07852806
Lead Sponsor The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School
Conditions Maxillofacial Bone Defect, Alveolar Bone Loss
Enrollment 20 participants
Start Date
Primary Completion (estimated)
Study Completion (estimated)
Updated on ClinicalTrials.gov