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Safety and Efficacy Clinical Trial of the Vessel-X® Bone Filling Container System (CMT-VX)

22 de junho de 2026 atualizado por: Juin-Hong Cherng

The Clinical Investigation to Evaluate the Safety and Efficacy of Vessel-X® Bone Filling Container System

Osteoporotic vertebral compression fractures (OVCFs) are a common and serious complication of osteoporosis, particularly among elderly and postmenopausal patients. OVCFs may result in severe pain, functional impairment, spinal deformity, and reduced quality of life. Conventional conservative treatments, including bed rest, analgesics, and bracing, may provide limited symptom relief. Minimally invasive vertebral augmentation procedures, such as vertebroplasty and kyphoplasty, have been widely used to improve clinical outcomes; however, risks including bone cement leakage and incomplete vertebral restoration remain concerns.

The Vessel-X® Bone Filling Container System, manufactured by Central Medical Technologies Inc. (CMT), is a third-generation vesselplasty technology designed for percutaneous vertebral augmentation procedures. The system utilizes an implantable biocompatible polyethylene terephthalate (PET) container with a microporous structure for controlled bone cement delivery. The implant remains within the vertebral body after cement injection and is designed to reduce cement leakage while maintaining vertebral height restoration and pain relief.

This post-market clinical study evaluates the safety and clinical effectiveness of the Vessel-X® Bone Filling Container System at two medical centers in Taiwan with a total target enrollment of 146 subjects:

Tri-Service General Hospital (TSGH): 86 subjects randomized in a 1:1 ratio to the experimental and control groups.

Taoyuan General Hospital, Ministry of Health and Welfare (TYGH): 60 subjects randomized in a 1:1 ratio to the experimental and control groups.

The primary objective is to evaluate the safety of the device by assessing the incidence of unanticipated serious adverse device effects (USADEs). Secondary objectives include evaluation of pain reduction measured by the Visual Analogue Scale (VAS), functional recovery assessed by the Oswestry Disability Index (ODI), and radiographic outcomes including vertebral height restoration and kyphotic deformity correction.

Visão geral do estudo

Descrição detalhada

Background and Rationale:

Osteoporotic vertebral compression fractures (OVCFs) are a common and serious complication of osteoporosis, particularly among elderly and postmenopausal patients. OVCFs may result in severe pain, functional impairment, spinal deformity, and reduced quality of life. Conventional conservative treatments, including bed rest, analgesics, and bracing, may provide limited symptom relief. Minimally invasive vertebral augmentation procedures, such as vertebroplasty and kyphoplasty, have been widely used to improve clinical outcomes; however, risks including bone cement leakage and incomplete vertebral restoration remain concerns.

The Vessel-X® Bone Filling Container System, manufactured by Central Medical Technologies Inc. (CMT), is a third-generation vesselplasty technology designed for percutaneous vertebral augmentation procedures. The system utilizes an implantable biocompatible polyethylene terephthalate (PET) container with a microporous structure for controlled bone cement delivery. The implant remains within the vertebral body after cement injection and is designed to reduce cement leakage while maintaining vertebral height restoration and pain relief.

This is a prospective, open-label, randomized, parallel-controlled, non-inferiority clinical trial conducted in Taiwan to evaluate the safety and clinical effectiveness of this system (Model: BVFT-UP01-D20, Approved No. 005889) compared with conventional vertebroplasty performed using manual orthopedic surgical instruments (Approved No. 005698), both manufactured by CMT. Both groups will utilize the same radiopaque bone cement ("Tecres" Osteopal V) for the therapeutic procedures.

Hypothesis:

The study is designed as a non-inferiority trial. The primary hypothesis is that the incidence of unanticipated serious adverse device effects (USADEs) in the Vessel-X® group is not higher than that in the control group. For efficacy, the experimental group is hypothesized to be non-inferior to the control group regarding pain relief, disability improvement, and radiographic parameters, with a pre-specified non-inferiority margin of -15% for the difference in fused effective rates between the two groups.

Patient Enrollment and Site Allocation:

To achieve the clinical evaluation objectives, a total of up to 146 subjects will be recruited across participating medical centers in Taiwan. The target sample size is allocated specifically as 86 subjects from Tri-Service General Hospital (TSGH) and 60 subjects from Taoyuan General Hospital (TYGH). Subjects at each site will be allocated to the experimental and control groups using a 1:1 randomization scheme.

Surgical Procedure Protocol:

All surgical procedures will be performed under real-time fluoroscopic (C-arm) guidance using a standard unilateral transpedicular approach:

Experimental Group: The Vessel-X® PET biocompatible microporous container will be deployed into the vertebral body, and bone cement will be injected in a controlled manner, allowing partial cement interdigitation through the micropores. The container remains as a permanent implant.

Control Group: Conventional vertebroplasty will be performed using CMT's standard manual orthopedic surgical instruments to deliver the bone cement directly.

In both groups, fluoroscopic monitoring is maintained throughout the injection, and cement delivery will be discontinued immediately if any cement leakage or breach is observed.

Clinical Evaluation Timelines:

Subjects will participate in the study for a total duration of 13 months, consisting of a 1-month screening period, the surgical intervention (Day 1), and a 12-month post-operative follow-up period. Follow-up visits are scheduled at Day 8 (8±2 days), Month 1 (31±2 days), Month 3 (91±15 days), Month 6 (181±15 days), Month 9 (271±15 days), and Month 12 (361±15 days).

Outcome Assessments:

Safety Assessment (Primary Endpoint, ITT Population): Evaluated by the incidence of adverse events, complications, bone cement leakage, and new-onset neurological deficits.

Efficacy Assessment (Secondary Endpoints, PP & FAS Populations): Evaluated by changes from baseline to each follow-up timepoint in Visual Analogue Scale (VAS) scores for pain, Oswestry Disability Index (ODI) scores for functional disability, and radiographic parameters (anterior vertebral height, midline vertebral height, and kyphotic Cobb's angle)

Tipo de estudo

Intervencional

Inscrição (Estimado)

146

Estágio

  • Não aplicável

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Contato de estudo

  • Nome: Juin-Hong Cherng, Ph.D.
  • Número de telefone: 18681, 18699 886-2-87923100
  • E-mail: i72bbb@gmail.com

Estude backup de contato

  • Nome: Gang-Yi Fan, Ph.D.
  • Número de telefone: 18699 886-2-87923100
  • E-mail: u9310318@gmail.com

Locais de estudo

      • Taipei, Taiwan, 114202
        • Recrutamento
        • Tri-Service General Hospital, National Defense Medical Univesity
        • Contato:
        • Contato:
          • Juin-Hong Cherng, Ph.D.
          • Número de telefone: 18698, 18699 886-2-87923100
          • E-mail: i72bbb@gmail.com
      • Taipei, Taiwan, 11490
        • Recrutamento
        • National Defense Medical University, Taiwan
        • Contato:
        • Contato:
          • Juin-Hong Cherng, Ph.D.
          • Número de telefone: 18698, 18699 886-2-8792-3100
          • E-mail: i72bbb@gmail.com
        • Investigador principal:
          • Chih-Chern Wang, Ph.D.
        • Investigador principal:
          • Yu-Hsu Chen, Ph.D.
        • Subinvestigador:
          • Yi-Chou Chen, M.D.
        • Subinvestigador:
          • Chien-Ning Hsu, M.D.

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

  • Adulto
  • Adulto mais velho

Aceita Voluntários Saudáveis

Não

Descrição

Inclusion Criteria:

Subjects must meet all of the following criteria to be eligible for enrollment in this study:

  1. Male or female subjects aged ≥40 and ≤95 years.
  2. Subjects admitted with vertebral compression fractures (VCFs) caused by osteoporosis or trauma.
  3. Surgical site within the range of T6 to L5.
  4. Subjects with normal vital signs and hepatic and renal function values within 1.5 times the upper limit of normal (ULN), as determined by the investigator to be suitable for study participation.
  5. Subjects willing to comply with the study schedule and all required assessment procedures.
  6. Subjects who are conscious, cognitively intact, and able to provide written informed consent.

Exclusion Criteria:

Subjects who meet any of the following criteria will be excluded from participation in this study:

  1. Pathological fractures caused by bone diseases, including benign or malignant tumors, tuberculosis, osteomyelitis, endocrine or metabolic bone disorders, or severe degenerative bone diseases.
  2. Active or severe systemic infections.
  3. Metabolic disorders (e.g., calcium metabolism disorders), immune system disorders, substance abuse, or alcoholism.
  4. Severe primary diseases involving the hematopoietic or endocrine systems, or psychiatric disorders.
  5. History of allergy to implant materials, hypersensitivity reactions, or allergies to multiple medications.
  6. Non-viable bone surrounding the surgical site or insufficient bone quality to support the implant.
  7. Active infection at or adjacent to the surgical site.
  8. Acute spinal instability.
  9. Unwillingness or inability to restrict physical activity or comply with medical instructions.
  10. Considered unsuitable for study participation by the investigator, or unable to provide independent informed consent.

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Tratamento
  • Alocação: Randomizado
  • Modelo Intervencional: Atribuição Paralela
  • Mascaramento: Solteiro

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: CMT Vessel-X ® Bone Filling Container System
Subjects undergo percutaneous vertebral augmentation using the CMT Vessel-X® Bone Filling Container System (Model: BVFT-UP01-D20). Under fluoroscopic guidance, a unilateral transpedicular approach is used to access the fractured vertebral body. The microporous PET Vessel-X® Bone Filling Container is deployed within the vertebral body and subsequently filled with TEKNIMED OPACITY+ Radiopaque Bone Cement (Model: T040320Z) to stabilize the vertebral compression fracture.

Model: BVFT-UP01-D20 (TFDA No. 005889, GMP0106), manufactured by Central Medical Technologies Inc. (marketed since Aug 2017). An EO-sterilized, single-use, implantable kit for percutaneous vertebral augmentation (store <= 25°C, shelf-life: 5 years). The kit includes:

  1. Vessel-X® Bone Filling Container (Model: BVFX-D20): An implantable, microporous PET container to enclose cement and minimize leakage.
  2. Front-Opening Cement Injection Device with Extension Tube (Model: T-C308, max 20 ml): For controlled hydraulic delivery.
  3. Percutaneous Access Tools: Includes 1pc Bone Access Needle (T-N201T), 1pc Guide Pin (T-P602), and 1pc Precision Drill (T-D401).

    • Intervention Cement: TEKNIMED OPACITY+ Radiopaque Bone Cement (Model: T040320Z; TFDA License No. 026888), used during vertebral augmentation procedures for injection into the affected vertebra to stabilize vertebral compression fractures.
Comparador Ativo: CMT Conventional Vertebroplasty
Subjects undergo percutaneous vertebroplasty using the CMT Manual Orthopedic Surgical Instruments (Model: T-C308). Under real-time fluoroscopic guidance, a unilateral transpedicular approach is used to access the fractured vertebral body, and TEKNIMED OPACITY+ Radiopaque Bone Cement (Model: T040320Z) is directly injected into the vertebral body to stabilize the vertebral compression fracture.
The CMT Manual Orthopedic Surgical Instruments (Model: T-C308; TFDA License No. 005698) are nonimplantable manual surgical instruments intended for conventional vertebroplasty procedures. The device functions as a manual cement delivery system for the injection of TEKNIMED OPACITY+ Radiopaque Bone Cement (Model: T040320Z; TFDA License No. 026888) into the vertebral body to stabilize vertebral compression fractures.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Incidence of Adverse Events, Serious Adverse Events (SAEs), and Unanticipated Serious Adverse Device Effects (USADEs)
Prazo: Day 1 (post-op), Day 8 (8±2 days), Month 1 (31±2 days), Month 3 (91±15 days), Month 6 (181±15 days), Month 9 (271±15 days), and Month 12 (361±15 days) post-operatively.
The primary safety endpoint is to evaluate the safety profile of the "Central Medical" Vessel-X® Bone Filling Container System. Safety assessments will analyze the incidence, specific manifestations, severity, and device-causality of all adverse events (AEs), serious adverse events (SAEs), and unanticipated serious adverse device effects (USADEs) following percutaneous vertebroplasty (including bone cement leakage, nerve root injury, vascular injury, or subsequent vertebral collapse). Proportions of abnormal post-operative cases and complication incidence with 95% Confidence Intervals (CI) will be calculated using the Intent-to-Treat (ITT) population.
Day 1 (post-op), Day 8 (8±2 days), Month 1 (31±2 days), Month 3 (91±15 days), Month 6 (181±15 days), Month 9 (271±15 days), and Month 12 (361±15 days) post-operatively.

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Change From Baseline in Visual Analogue Scale (VAS) Pain Score
Prazo: Baseline (within 1 week pre-operatively), Day 1 (post-operatively), Day 8 (8±2 days), Month 1 (31±2 days), Month 3 (91±15 days), Month 6 (181±15 days), Month 9 (271±15 days), and Month 12 (361±15 days) post-operatively.
Pain intensity will be assessed using the 100-mm Visual Analogue Scale (VAS), where 0 indicates no pain and 100 indicates the worst imaginable pain. Changes from baseline in VAS scores will be compared between the experimental and control groups to evaluate pain relief following treatment.
Baseline (within 1 week pre-operatively), Day 1 (post-operatively), Day 8 (8±2 days), Month 1 (31±2 days), Month 3 (91±15 days), Month 6 (181±15 days), Month 9 (271±15 days), and Month 12 (361±15 days) post-operatively.
Change From Baseline in Oswestry Disability Index (ODI) Score
Prazo: Baseline (within 1 week pre-operatively), Day 1 (post-operatively), Day 8 (8±2 days), Month 1 (31±2 days), Month 3 (91±15 days), Month 6 (181±15 days), Month 9 (271±15 days), and Month 12 (361±15 days) post-operatively.
Functional disability will be evaluated using the Oswestry Disability Index (ODI) questionnaire. Changes from baseline in ODI scores will be compared between the experimental and control groups to assess functional recovery following treatment.
Baseline (within 1 week pre-operatively), Day 1 (post-operatively), Day 8 (8±2 days), Month 1 (31±2 days), Month 3 (91±15 days), Month 6 (181±15 days), Month 9 (271±15 days), and Month 12 (361±15 days) post-operatively.
Change From Baseline in Radiographic Anterior Vertebral Height
Prazo: Baseline (within 1 week pre-operatively), Day 1 (post-operatively), Day 8 (8±2 days), Month 1 (31±2 days), Month 3 (91±15 days), Month 6 (181±15 days), Month 9 (271±15 days), and Month 12 (361±15 days) post-operatively.
Radiographic assessment of anterior vertebral height (measured in millimeters) will be performed using X-ray, computed tomography (CT), or magnetic resonance imaging (MRI). Changes from baseline will be compared between the experimental and control groups to evaluate vertebral body restoration.
Baseline (within 1 week pre-operatively), Day 1 (post-operatively), Day 8 (8±2 days), Month 1 (31±2 days), Month 3 (91±15 days), Month 6 (181±15 days), Month 9 (271±15 days), and Month 12 (361±15 days) post-operatively.
hange From Baseline in Radiographic Mid-Vertebral Height
Prazo: Baseline (within 1 week pre-operatively), Day 1 (post-operatively), Day 8 (8±2 days), Month 1 (31±2 days), Month 3 (91±15 days), Month 6 (181±15 days), Month 9 (271±15 days), and Month 12 (361±15 days) post-operatively.
Radiographic assessment of mid-vertebral height (measured in millimeters) will be performed using X-ray, computed tomography (CT), or magnetic resonance imaging (MRI). Changes from baseline will be compared between the experimental and control groups to evaluate vertebral body restoration.
Baseline (within 1 week pre-operatively), Day 1 (post-operatively), Day 8 (8±2 days), Month 1 (31±2 days), Month 3 (91±15 days), Month 6 (181±15 days), Month 9 (271±15 days), and Month 12 (361±15 days) post-operatively.
Change From Baseline in Kyphotic Cobb's Angle
Prazo: Baseline (within 1 week pre-operatively), Day 1 (post-operatively), Day 8 (8±2 days), Month 1 (31±2 days), Month 3 (91±15 days), Month 6 (181±15 days), Month 9 (271±15 days), and Month 12 (361±15 days) post-operatively.
Radiographic assessment of the kyphotic Cobb's angle (measured in degrees) will be performed using sagittal X-ray, computed tomography (CT), or magnetic resonance imaging (MRI) to evaluate spinal alignment correction. Changes from baseline will be compared between the experimental and control groups.
Baseline (within 1 week pre-operatively), Day 1 (post-operatively), Day 8 (8±2 days), Month 1 (31±2 days), Month 3 (91±15 days), Month 6 (181±15 days), Month 9 (271±15 days), and Month 12 (361±15 days) post-operatively.

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

Investigadores

  • Investigador principal: Dr. Chih-Chien Wang, Ph.D., Trial-Service General Hospital, National Defense Medical University
  • Investigador principal: Yu-Hsu Chen, Ph.D., Taoyuan General Hospital, Ministry of Health and Welfare

Publicações e links úteis

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Publicações Gerais

Links úteis

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Real)

20 de abril de 2021

Conclusão Primária (Estimado)

31 de dezembro de 2026

Conclusão do estudo (Estimado)

31 de dezembro de 2026

Datas de inscrição no estudo

Enviado pela primeira vez

3 de junho de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

22 de junho de 2026

Primeira postagem (Real)

24 de junho de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

24 de junho de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

22 de junho de 2026

Última verificação

1 de maio de 2026

Mais Informações

Termos relacionados a este estudo

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Descrição do plano IPD

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Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

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